Esempio n. 1
0
File: datum.c Progetto: caomw/grass
int GPJ_get_datum_params(char **name, char **params)
{
    int ret;
    struct Key_Value *proj_keys = G_get_projinfo();

    ret = GPJ__get_datum_params(proj_keys, name, params);
    G_free_key_value(proj_keys);

    return ret;
}
Esempio n. 2
0
static void init(void)
{
    if (G_is_initialized(&initialized))
	return;

    proj_info = G_get_projinfo();
    proj_units = G_get_projunits();
    proj_epsg = G_get_projepsg();

    G_initialize_done(&initialized);
}
Esempio n. 3
0
/**
 * This routine returns the ellipsoid parameters from the database.
 * If the PROJECTION_FILE exists in the PERMANENT mapset, read info from
 * that file, otherwise return WGS 84 values.
 *
 * \return 1 ok, 0 default values used.
 *         Dies with diagnostic if there is an error
 **/
int GPJ_get_ellipsoid_params(double *a, double *e2, double *rf)
{
    int ret;
    struct Key_Value *proj_keys = G_get_projinfo();

    if (proj_keys == NULL)
        proj_keys = G_create_key_value();

    ret = GPJ__get_ellipsoid_params(proj_keys, a, e2, rf);
    G_free_key_value(proj_keys);

    return ret;
}
QgsCoordinateReferenceSystem GRASS_EXPORT QgsGrass::crsDirect( QString gisdbase, QString location )
{
  QString Wkt;

  struct Cell_head cellhd;

  QgsGrass::resetError();
  QgsGrass::setLocation( gisdbase, location );

  const char *oldlocale = setlocale( LC_NUMERIC, NULL );
  setlocale( LC_NUMERIC, "C" );

  try
  {
    G_get_default_window( &cellhd );
  }
  catch ( QgsGrass::Exception &e )
  {
    Q_UNUSED( e );
    setlocale( LC_NUMERIC, oldlocale );
    QgsDebugMsg( QString( "Cannot get default window: %1" ).arg( e.what() ) );
    return QgsCoordinateReferenceSystem();
  }

  if ( cellhd.proj != PROJECTION_XY )
  {
    struct Key_Value *projinfo = G_get_projinfo();
    struct Key_Value *projunits = G_get_projunits();
    char *wkt = GPJ_grass_to_wkt( projinfo, projunits,  0, 0 );
    Wkt = QString( wkt );
    G_free( wkt );
  }

  setlocale( LC_NUMERIC, oldlocale );

  QgsCoordinateReferenceSystem srs;
  srs.createFromWkt( Wkt );

  return srs;
}
Esempio n. 5
0
int main( int argc, char **argv )
{
  struct GModule *module;
  struct Option *info_opt, *rast_opt, *vect_opt, *coor_opt;
  struct Cell_head window;

  /* Initialize the GIS calls */
  G_gisinit( argv[0] );

  module = G_define_module();
  module->description = ( "Get info about locations,mapsets,maps" );

  info_opt = G_define_option();
  info_opt->key = "info";
  info_opt->type = TYPE_STRING;
  info_opt->description = "info key";
  info_opt->options = "proj,window,query";

  rast_opt = G_define_standard_option( G_OPT_R_INPUT );
  rast_opt->key = "rast";
  rast_opt->required = NO;

  vect_opt = G_define_standard_option( G_OPT_V_INPUT );
  vect_opt->key = "vect";
  vect_opt->required = NO;

  coor_opt = G_define_option();
  coor_opt->key = "coor";
  coor_opt->type = TYPE_DOUBLE;
  coor_opt->multiple = YES;

  if ( G_parser( argc, argv ) )
    exit( EXIT_FAILURE );


  if ( strcmp( "proj", info_opt->answer ) == 0 )
  {
    G_get_window( &window );
    /* code from g.proj */
    if ( window.proj != PROJECTION_XY )
    {
      struct Key_Value *projinfo, *projunits;
      char *wkt;
      projinfo = G_get_projinfo();
      projunits = G_get_projunits();
      wkt = GPJ_grass_to_wkt( projinfo, projunits,  0, 0 );
      fprintf( stdout, "%s", wkt );
    }
  }
  else if ( strcmp( "window", info_opt->answer ) == 0 )
  {
    if ( rast_opt->answer )
    {
      G_get_cellhd( rast_opt->answer, "", &window );
      fprintf( stdout, "%f,%f,%f,%f", window.west, window.south, window.east, window.north );
    }
    else if ( vect_opt->answer )
    {
      G_fatal_error( "Not yet supported" );
    }
  }
  else if ( strcmp( "query", info_opt->answer ) == 0 )
  {
    double x, y;
    int row, col;
    x = atof( coor_opt->answers[0] );
    y = atof( coor_opt->answers[1] );
    if ( rast_opt->answer )
    {
      int fd;
      RASTER_MAP_TYPE rast_type;
      DCELL *dcell;
      CELL *cell;
      G_get_cellhd( rast_opt->answer, "", &window );
      G_set_window( &window );
      fd = G_open_cell_old( rast_opt->answer, "" );
      col = ( int ) G_easting_to_col( x, &window );
      row = ( int ) G_northing_to_row( y, &window );
      if ( col == window.cols ) col--;
      if ( row == window.rows ) row--;

      if ( col < 0 || col > window.cols || row < 0 || row > window.rows )
      {
        fprintf( stdout, "value:null\n" );
      }
      else
      {
        void *ptr;
        double val;

#if defined(GRASS_VERSION_MAJOR) && defined(GRASS_VERSION_MINOR) && \
    ( ( GRASS_VERSION_MAJOR == 6 && GRASS_VERSION_MINOR > 2 ) || GRASS_VERSION_MAJOR > 6 )
        rast_type = G_get_raster_map_type( fd );
#else
        rast_type = G_raster_map_type( rast_opt->answer, "" );
#endif
        cell = G_allocate_c_raster_buf();
        dcell = G_allocate_d_raster_buf();

        if ( rast_type == CELL_TYPE )
        {
          if ( G_get_c_raster_row( fd, cell, row ) < 0 )
          {
            G_fatal_error(( "Unable to read raster map <%s> row %d" ),
                          rast_opt->answer, row );
          }
          val = cell[col];
          ptr = &( cell[col] );
        }
        else
        {
          if ( G_get_d_raster_row( fd, dcell, row ) < 0 )
          {
            G_fatal_error(( "Unable to read raster map <%s> row %d" ),
                          rast_opt->answer, row );
          }
          val = dcell[col];
          ptr = &( dcell[col] );
        }
        if ( G_is_null_value( ptr, rast_type ) )
        {
          fprintf( stdout, "value:null\n" );
        }
        else
        {
          fprintf( stdout, "value:%f\n", val );
        }
      }
      G_close_cell( fd );
    }
    else if ( vect_opt->answer )
    {
      G_fatal_error( "Not yet supported" );
    }
  }

  exit( EXIT_SUCCESS );
}
Esempio n. 6
0
int main(int argc, char **argv)
{
    char *mapname,		/* ptr to name of output layer  */
     *setname,			/* ptr to name of input mapset  */
     *ipolname;			/* name of interpolation method */

    int fdi,			/* input map file descriptor    */
      fdo,			/* output map file descriptor   */
      method,			/* position of method in table  */
      permissions,		/* mapset permissions           */
      cell_type,		/* output celltype              */
      cell_size,		/* size of a cell in bytes      */
      row, col,			/* counters                     */
      irows, icols,		/* original rows, cols          */
      orows, ocols, have_colors,	/* Input map has a colour table */
      overwrite,		/* Overwrite                    */
      curr_proj;		/* output projection (see gis.h) */

    void *obuffer,		/* buffer that holds one output row     */
     *obufptr;			/* column ptr in output buffer  */
    struct cache *ibuffer;	/* buffer that holds the input map      */
    func interpolate;		/* interpolation routine        */

    double xcoord1, xcoord2,	/* temporary x coordinates      */
      ycoord1, ycoord2,		/* temporary y coordinates      */
      col_idx,			/* column index in input matrix */
      row_idx,			/* row index in input matrix    */
      onorth, osouth,		/* save original border coords  */
      oeast, owest, inorth, isouth, ieast, iwest;
    char north_str[30], south_str[30], east_str[30], west_str[30];

    struct Colors colr;		/* Input map colour table       */
    struct History history;

    struct pj_info iproj,	/* input map proj parameters    */
      oproj;			/* output map proj parameters   */

    struct Key_Value *in_proj_info,	/* projection information of    */
     *in_unit_info,		/* input and output mapsets     */
     *out_proj_info, *out_unit_info;

    struct GModule *module;

    struct Flag *list,		/* list files in source location */
     *nocrop,			/* don't crop output map        */
     *print_bounds,		/* print output bounds and exit */
     *gprint_bounds;		/* same but print shell style	*/

    struct Option *imapset,	/* name of input mapset         */
     *inmap,			/* name of input layer          */
     *inlocation,		/* name of input location       */
     *outmap,			/* name of output layer         */
     *indbase,			/* name of input database       */
     *interpol,			/* interpolation method:
				   nearest neighbor, bilinear, cubic */
     *memory,			/* amount of memory for cache   */
     *res;			/* resolution of target map     */
    struct Cell_head incellhd,	/* cell header of input map     */
      outcellhd;		/* and output map               */


    G_gisinit(argv[0]);

    module = G_define_module();
    G_add_keyword(_("raster"));
    G_add_keyword(_("projection"));
    G_add_keyword(_("transformation"));
    module->description =
	_("Re-projects a raster map from given location to the current location.");

    inmap = G_define_standard_option(G_OPT_R_INPUT);
    inmap->description = _("Name of input raster map to re-project");
    inmap->required = NO;
    inmap->guisection = _("Source");

    inlocation = G_define_option();
    inlocation->key = "location";
    inlocation->type = TYPE_STRING;
    inlocation->required = YES;
    inlocation->description = _("Location containing input raster map");
    inlocation->gisprompt = "old,location,location";
    inlocation->key_desc = "name";

    imapset = G_define_standard_option(G_OPT_M_MAPSET);
    imapset->label = _("Mapset containing input raster map");
    imapset->description = _("default: name of current mapset");
    imapset->guisection = _("Source");

    indbase = G_define_option();
    indbase->key = "dbase";
    indbase->type = TYPE_STRING;
    indbase->required = NO;
    indbase->description = _("Path to GRASS database of input location");
    indbase->gisprompt = "old,dbase,dbase";
    indbase->key_desc = "path";
    indbase->guisection = _("Source");

    outmap = G_define_standard_option(G_OPT_R_OUTPUT);
    outmap->required = NO;
    outmap->description = _("Name for output raster map (default: same as 'input')");
    outmap->guisection = _("Target");

    ipolname = make_ipol_list();
    
    interpol = G_define_option();
    interpol->key = "method";
    interpol->type = TYPE_STRING;
    interpol->required = NO;
    interpol->answer = "nearest";
    interpol->options = ipolname;
    interpol->description = _("Interpolation method to use");
    interpol->guisection = _("Target");
    interpol->descriptions = make_ipol_desc();

    memory = G_define_option();
    memory->key = "memory";
    memory->type = TYPE_INTEGER;
    memory->required = NO;
    memory->description = _("Cache size (MiB)");

    res = G_define_option();
    res->key = "resolution";
    res->type = TYPE_DOUBLE;
    res->required = NO;
    res->description = _("Resolution of output raster map");
    res->guisection = _("Target");

    list = G_define_flag();
    list->key = 'l';
    list->description = _("List raster maps in input location and exit");

    nocrop = G_define_flag();
    nocrop->key = 'n';
    nocrop->description = _("Do not perform region cropping optimization");

    print_bounds = G_define_flag();
    print_bounds->key = 'p';
    print_bounds->description =
	_("Print input map's bounds in the current projection and exit");
    print_bounds->guisection = _("Target");
    
    gprint_bounds = G_define_flag();
    gprint_bounds->key = 'g';
    gprint_bounds->description =
	_("Print input map's bounds in the current projection and exit (shell style)");
    gprint_bounds->guisection = _("Target");

    /* The parser checks if the map already exists in current mapset,
       we switch out the check and do it
       in the module after the parser */
    overwrite = G_check_overwrite(argc, argv);

    if (G_parser(argc, argv))
	exit(EXIT_FAILURE);


    /* get the method */
    for (method = 0; (ipolname = menu[method].name); method++)
	if (strcmp(ipolname, interpol->answer) == 0)
	    break;

    if (!ipolname)
	G_fatal_error(_("<%s=%s> unknown %s"),
		      interpol->key, interpol->answer, interpol->key);
    interpolate = menu[method].method;

    mapname = outmap->answer ? outmap->answer : inmap->answer;
    if (mapname && !list->answer && !overwrite &&
	G_find_raster(mapname, G_mapset()))
	G_fatal_error(_("option <%s>: <%s> exists."), "output", mapname);

    setname = imapset->answer ? imapset->answer : G_store(G_mapset());
    if (strcmp(inlocation->answer, G_location()) == 0 &&
        (!indbase->answer || strcmp(indbase->answer, G_gisdbase()) == 0))
#if 0
	G_fatal_error(_("Input and output locations can not be the same"));
#else
	G_warning(_("Input and output locations are the same"));
#endif
    G_get_window(&outcellhd);

    if(gprint_bounds->answer && !print_bounds->answer)
	print_bounds->answer = gprint_bounds->answer;
    curr_proj = G_projection();

    /* Get projection info for output mapset */
    if ((out_proj_info = G_get_projinfo()) == NULL)
	G_fatal_error(_("Unable to get projection info of output raster map"));

    if ((out_unit_info = G_get_projunits()) == NULL)
	G_fatal_error(_("Unable to get projection units of output raster map"));

    if (pj_get_kv(&oproj, out_proj_info, out_unit_info) < 0)
	G_fatal_error(_("Unable to get projection key values of output raster map"));

    /* Change the location           */
    G__create_alt_env();
    G__setenv("GISDBASE", indbase->answer ? indbase->answer : G_gisdbase());
    G__setenv("LOCATION_NAME", inlocation->answer);

    permissions = G__mapset_permissions(setname);
    if (permissions < 0)	/* can't access mapset       */
	G_fatal_error(_("Mapset <%s> in input location <%s> - %s"),
		      setname, inlocation->answer,
		      permissions == 0 ? _("permission denied")
		      : _("not found"));

    /* if requested, list the raster maps in source location - MN 5/2001 */
    if (list->answer) {
	int i;
	char **list;
	G_verbose_message(_("Checking location <%s> mapset <%s>"),
			  inlocation->answer, setname);
	list = G_list(G_ELEMENT_RASTER, G__getenv("GISDBASE"),
		      G__getenv("LOCATION_NAME"), setname);
	for (i = 0; list[i]; i++) {
	    fprintf(stdout, "%s\n", list[i]);
	}
	fflush(stdout);
	exit(EXIT_SUCCESS);	/* leave r.proj after listing */
    }

    if (!inmap->answer)
	G_fatal_error(_("Required parameter <%s> not set"), inmap->key);

    if (!G_find_raster(inmap->answer, setname))
	G_fatal_error(_("Raster map <%s> in location <%s> in mapset <%s> not found"),
		      inmap->answer, inlocation->answer, setname);

    /* Read input map colour table */
    have_colors = Rast_read_colors(inmap->answer, setname, &colr);

    /* Get projection info for input mapset */
    if ((in_proj_info = G_get_projinfo()) == NULL)
	G_fatal_error(_("Unable to get projection info of input map"));

    if ((in_unit_info = G_get_projunits()) == NULL)
	G_fatal_error(_("Unable to get projection units of input map"));

    if (pj_get_kv(&iproj, in_proj_info, in_unit_info) < 0)
	G_fatal_error(_("Unable to get projection key values of input map"));

    G_free_key_value(in_proj_info);
    G_free_key_value(in_unit_info);
    G_free_key_value(out_proj_info);
    G_free_key_value(out_unit_info);
    if (G_verbose() > G_verbose_std())
	pj_print_proj_params(&iproj, &oproj);

    /* this call causes r.proj to read the entire map into memeory */
    Rast_get_cellhd(inmap->answer, setname, &incellhd);

    Rast_set_input_window(&incellhd);

    if (G_projection() == PROJECTION_XY)
	G_fatal_error(_("Unable to work with unprojected data (xy location)"));

    /* Save default borders so we can show them later */
    inorth = incellhd.north;
    isouth = incellhd.south;
    ieast = incellhd.east;
    iwest = incellhd.west;
    irows = incellhd.rows;
    icols = incellhd.cols;

    onorth = outcellhd.north;
    osouth = outcellhd.south;
    oeast = outcellhd.east;
    owest = outcellhd.west;
    orows = outcellhd.rows;
    ocols = outcellhd.cols;


    if (print_bounds->answer) {
	G_message(_("Input map <%s@%s> in location <%s>:"),
	    inmap->answer, setname, inlocation->answer);

	if (pj_do_proj(&iwest, &isouth, &iproj, &oproj) < 0)
	    G_fatal_error(_("Error in pj_do_proj (projection of input coordinate pair)"));
	if (pj_do_proj(&ieast, &inorth, &iproj, &oproj) < 0)
	    G_fatal_error(_("Error in pj_do_proj (projection of input coordinate pair)"));

	G_format_northing(inorth, north_str, curr_proj);
	G_format_northing(isouth, south_str, curr_proj);
	G_format_easting(ieast, east_str, curr_proj);
	G_format_easting(iwest, west_str, curr_proj);

	if(gprint_bounds->answer) {
	    fprintf(stdout, "n=%s s=%s w=%s e=%s rows=%d cols=%d\n",
		north_str, south_str, west_str, east_str, irows, icols);
	}
	else {
	    fprintf(stdout, "Source cols: %d\n", icols);
	    fprintf(stdout, "Source rows: %d\n", irows);
	    fprintf(stdout, "Local north: %s\n",  north_str);
	    fprintf(stdout, "Local south: %s\n", south_str);
	    fprintf(stdout, "Local west: %s\n", west_str);
	    fprintf(stdout, "Local east: %s\n", east_str);
	}

	/* somehow approximate local ewres, nsres ?? (use 'g.region -m' on lat/lon side) */

	exit(EXIT_SUCCESS);
    }


    /* Cut non-overlapping parts of input map */
    if (!nocrop->answer)
	bordwalk(&outcellhd, &incellhd, &oproj, &iproj);

    /* Add 2 cells on each side for bilinear/cubic & future interpolation methods */
    /* (should probably be a factor based on input and output resolution) */
    incellhd.north += 2 * incellhd.ns_res;
    incellhd.east += 2 * incellhd.ew_res;
    incellhd.south -= 2 * incellhd.ns_res;
    incellhd.west -= 2 * incellhd.ew_res;
    if (incellhd.north > inorth)
	incellhd.north = inorth;
    if (incellhd.east > ieast)
	incellhd.east = ieast;
    if (incellhd.south < isouth)
	incellhd.south = isouth;
    if (incellhd.west < iwest)
	incellhd.west = iwest;

    Rast_set_input_window(&incellhd);

    /* And switch back to original location */

    G__switch_env();

    /* Adjust borders of output map */

    if (!nocrop->answer)
	bordwalk(&incellhd, &outcellhd, &iproj, &oproj);

#if 0
    outcellhd.west = outcellhd.south = HUGE_VAL;
    outcellhd.east = outcellhd.north = -HUGE_VAL;
    for (row = 0; row < incellhd.rows; row++) {
	ycoord1 = Rast_row_to_northing((double)(row + 0.5), &incellhd);
	for (col = 0; col < incellhd.cols; col++) {
	    xcoord1 = Rast_col_to_easting((double)(col + 0.5), &incellhd);
	    pj_do_proj(&xcoord1, &ycoord1, &iproj, &oproj);
	    if (xcoord1 > outcellhd.east)
		outcellhd.east = xcoord1;
	    if (ycoord1 > outcellhd.north)
		outcellhd.north = ycoord1;
	    if (xcoord1 < outcellhd.west)
		outcellhd.west = xcoord1;
	    if (ycoord1 < outcellhd.south)
		outcellhd.south = ycoord1;
	}
    }
#endif

    if (res->answer != NULL)	/* set user defined resolution */
	outcellhd.ns_res = outcellhd.ew_res = atof(res->answer);

    G_adjust_Cell_head(&outcellhd, 0, 0);
    Rast_set_output_window(&outcellhd);

    G_message(" ");
    G_message(_("Input:"));
    G_message(_("Cols: %d (%d)"), incellhd.cols, icols);
    G_message(_("Rows: %d (%d)"), incellhd.rows, irows);
    G_message(_("North: %f (%f)"), incellhd.north, inorth);
    G_message(_("South: %f (%f)"), incellhd.south, isouth);
    G_message(_("West: %f (%f)"), incellhd.west, iwest);
    G_message(_("East: %f (%f)"), incellhd.east, ieast);
    G_message(_("EW-res: %f"), incellhd.ew_res);
    G_message(_("NS-res: %f"), incellhd.ns_res);
    G_message(" ");

    G_message(_("Output:"));
    G_message(_("Cols: %d (%d)"), outcellhd.cols, ocols);
    G_message(_("Rows: %d (%d)"), outcellhd.rows, orows);
    G_message(_("North: %f (%f)"), outcellhd.north, onorth);
    G_message(_("South: %f (%f)"), outcellhd.south, osouth);
    G_message(_("West: %f (%f)"), outcellhd.west, owest);
    G_message(_("East: %f (%f)"), outcellhd.east, oeast);
    G_message(_("EW-res: %f"), outcellhd.ew_res);
    G_message(_("NS-res: %f"), outcellhd.ns_res);
    G_message(" ");

    /* open and read the relevant parts of the input map and close it */
    G__switch_env();
    Rast_set_input_window(&incellhd);
    fdi = Rast_open_old(inmap->answer, setname);
    cell_type = Rast_get_map_type(fdi);
    ibuffer = readcell(fdi, memory->answer);
    Rast_close(fdi);

    G__switch_env();
    Rast_set_output_window(&outcellhd);

    if (strcmp(interpol->answer, "nearest") == 0) {
	fdo = Rast_open_new(mapname, cell_type);
	obuffer = (CELL *) Rast_allocate_output_buf(cell_type);
    }
    else {
	fdo = Rast_open_fp_new(mapname);
	cell_type = FCELL_TYPE;
	obuffer = (FCELL *) Rast_allocate_output_buf(cell_type);
    }

    cell_size = Rast_cell_size(cell_type);

    xcoord1 = xcoord2 = outcellhd.west + (outcellhd.ew_res / 2);
    /**/ ycoord1 = ycoord2 = outcellhd.north - (outcellhd.ns_res / 2);
    /**/ G_important_message(_("Projecting..."));
    G_percent(0, outcellhd.rows, 2);

    for (row = 0; row < outcellhd.rows; row++) {
	obufptr = obuffer;

	for (col = 0; col < outcellhd.cols; col++) {
	    /* project coordinates in output matrix to       */
	    /* coordinates in input matrix                   */
	    if (pj_do_proj(&xcoord1, &ycoord1, &oproj, &iproj) < 0)
		Rast_set_null_value(obufptr, 1, cell_type);
	    else {
		/* convert to row/column indices of input matrix */
		col_idx = (xcoord1 - incellhd.west) / incellhd.ew_res;
		row_idx = (incellhd.north - ycoord1) / incellhd.ns_res;

		/* and resample data point               */
		interpolate(ibuffer, obufptr, cell_type,
			    &col_idx, &row_idx, &incellhd);
	    }

	    obufptr = G_incr_void_ptr(obufptr, cell_size);
	    xcoord2 += outcellhd.ew_res;
	    xcoord1 = xcoord2;
	    ycoord1 = ycoord2;
	}

	Rast_put_row(fdo, obuffer, cell_type);

	xcoord1 = xcoord2 = outcellhd.west + (outcellhd.ew_res / 2);
	ycoord2 -= outcellhd.ns_res;
	ycoord1 = ycoord2;
	G_percent(row, outcellhd.rows - 1, 2);
    }

    Rast_close(fdo);

    if (have_colors > 0) {
	Rast_write_colors(mapname, G_mapset(), &colr);
	Rast_free_colors(&colr);
    }

    Rast_short_history(mapname, "raster", &history);
    Rast_command_history(&history);
    Rast_write_history(mapname, &history);

    G_done_msg(NULL);
    exit(EXIT_SUCCESS);
}
Esempio n. 7
0
GDALDataset *GRASSDataset::Open( GDALOpenInfo * poOpenInfo )

{
    char	*pszGisdb = NULL, *pszLoc = NULL;
    char	*pszMapset = NULL, *pszElem = NULL, *pszName = NULL;
    char        **papszCells = NULL;
    char        **papszMapsets = NULL;

/* -------------------------------------------------------------------- */
/*      Does this even look like a grass file path?                     */
/* -------------------------------------------------------------------- */
    if( strstr(poOpenInfo->pszFilename,"/cellhd/") == NULL
        && strstr(poOpenInfo->pszFilename,"/group/") == NULL )
        return NULL;

    /* Always init, if no rasters are opened G_no_gisinit resets the projection and 
     * rasters in different projection may be then opened */

    // Don't use GISRC file and read/write GRASS variables (from location G_VAR_GISRC) to memory only.
    G_set_gisrc_mode ( G_GISRC_MODE_MEMORY );

    // Init GRASS libraries (required)
    G_no_gisinit();  // Doesn't check write permissions for mapset compare to G_gisinit

    // Set error function
    G_set_error_routine ( (GrassErrorHandler) Grass2CPLErrorHook );
    

    // GISBASE is path to the directory where GRASS is installed,
    if ( !getenv( "GISBASE" ) ) {
        static char* gisbaseEnv = NULL;
        const char *gisbase = GRASS_GISBASE;
        CPLError( CE_Warning, CPLE_AppDefined, "GRASS warning: GISBASE "
                "enviroment variable was not set, using:\n%s", gisbase );
        char buf[2000];
        snprintf ( buf, sizeof(buf), "GISBASE=%s", gisbase );
        buf[sizeof(buf)-1] = '\0';

        CPLFree(gisbaseEnv);
        gisbaseEnv = CPLStrdup ( buf );
        putenv( gisbaseEnv );
    }

    if ( !SplitPath( poOpenInfo->pszFilename, &pszGisdb, &pszLoc, &pszMapset,
                     &pszElem, &pszName) ) {
	return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Check element name                                              */
/* -------------------------------------------------------------------- */
    if ( strcmp(pszElem,"cellhd") != 0 && strcmp(pszElem,"group") != 0 ) { 
	G_free(pszGisdb); 
        G_free(pszLoc); 
        G_free(pszMapset); 
        G_free(pszElem); 
        G_free(pszName);
	return NULL;
    }
    
/* -------------------------------------------------------------------- */
/*      Set GRASS variables                                             */
/* -------------------------------------------------------------------- */

    G__setenv( "GISDBASE", pszGisdb );
    G__setenv( "LOCATION_NAME", pszLoc );
    G__setenv( "MAPSET", pszMapset); // group is searched only in current mapset 
    G_reset_mapsets();
    G_add_mapset_to_search_path ( pszMapset );

/* -------------------------------------------------------------------- */
/*      Check if this is a valid grass cell.                            */
/* -------------------------------------------------------------------- */
    if ( strcmp(pszElem,"cellhd") == 0 ) {
	
        if ( G_find_file2("cell", pszName, pszMapset) == NULL ) {
	    G_free(pszGisdb); G_free(pszLoc); G_free(pszMapset); G_free(pszElem); G_free(pszName);
	    return NULL;
	}

	papszMapsets = CSLAddString( papszMapsets, pszMapset );
	papszCells = CSLAddString( papszCells, pszName );
    }
/* -------------------------------------------------------------------- */
/*      Check if this is a valid GRASS imagery group.                   */
/* -------------------------------------------------------------------- */
    else {
        struct Ref ref;

        I_init_group_ref( &ref );
        if ( I_get_group_ref( pszName, &ref ) == 0 ) {
	    G_free(pszGisdb); G_free(pszLoc); G_free(pszMapset); G_free(pszElem); G_free(pszName);
	    return NULL;
	}
        
        for( int iRef = 0; iRef < ref.nfiles; iRef++ ) 
	{
            papszCells = CSLAddString( papszCells, ref.file[iRef].name );
            papszMapsets = CSLAddString( papszMapsets, ref.file[iRef].mapset );
            G_add_mapset_to_search_path ( ref.file[iRef].mapset );
        }

        I_free_group_ref( &ref );
    }
    
    G_free( pszMapset );
    G_free( pszName );

/* -------------------------------------------------------------------- */
/*      Create a corresponding GDALDataset.                             */
/* -------------------------------------------------------------------- */
    GRASSDataset 	*poDS;

    poDS = new GRASSDataset();

    /* notdef: should only allow read access to an existing cell, right? */
    poDS->eAccess = poOpenInfo->eAccess;

    poDS->pszGisdbase = pszGisdb;
    poDS->pszLocation = pszLoc;
    poDS->pszElement = pszElem;
    
/* -------------------------------------------------------------------- */
/*      Capture some information from the file that is of interest.     */
/* -------------------------------------------------------------------- */

#if GRASS_VERSION_MAJOR  >= 7
    Rast_get_cellhd( papszCells[0], papszMapsets[0], &(poDS->sCellInfo) );
#else
    if( G_get_cellhd( papszCells[0], papszMapsets[0], &(poDS->sCellInfo) ) != 0 ) {
        CPLError( CE_Warning, CPLE_AppDefined, "GRASS: Cannot open raster header");
        delete poDS;
        return NULL;
    }
#endif

    poDS->nRasterXSize = poDS->sCellInfo.cols;
    poDS->nRasterYSize = poDS->sCellInfo.rows;

    poDS->adfGeoTransform[0] = poDS->sCellInfo.west;
    poDS->adfGeoTransform[1] = poDS->sCellInfo.ew_res;
    poDS->adfGeoTransform[2] = 0.0;
    poDS->adfGeoTransform[3] = poDS->sCellInfo.north;
    poDS->adfGeoTransform[4] = 0.0;
    poDS->adfGeoTransform[5] = -1 * poDS->sCellInfo.ns_res;
    
/* -------------------------------------------------------------------- */
/*      Try to get a projection definition.                             */
/* -------------------------------------------------------------------- */
    struct Key_Value *projinfo, *projunits;

    projinfo = G_get_projinfo();
    projunits = G_get_projunits();
    poDS->pszProjection = GPJ_grass_to_wkt ( projinfo, projunits, 0, 0);
    if (projinfo) G_free_key_value(projinfo);
    if (projunits) G_free_key_value(projunits);

/* -------------------------------------------------------------------- */
/*      Create band information objects.                                */
/* -------------------------------------------------------------------- */
    for( int iBand = 0; papszCells[iBand] != NULL; iBand++ )
    {
	GRASSRasterBand *rb = new GRASSRasterBand( poDS, iBand+1, papszMapsets[iBand], 
                                                                  papszCells[iBand] );

	if ( !rb->valid ) {
	    CPLError( CE_Warning, CPLE_AppDefined, "GRASS: Cannot open raster band %d", iBand);
	    delete rb;
	    delete poDS;
	    return NULL;
	}

        poDS->SetBand( iBand+1, rb );
    }

    CSLDestroy(papszCells);
    CSLDestroy(papszMapsets);
    
/* -------------------------------------------------------------------- */
/*      Confirm the requested access is supported.                      */
/* -------------------------------------------------------------------- */
    if( poOpenInfo->eAccess == GA_Update )
    {
        delete poDS;
        CPLError( CE_Failure, CPLE_NotSupported, 
                  "The GRASS driver does not support update access to existing"
                  " datasets.\n" );
        return NULL;
    }
    
    return poDS;
}
Esempio n. 8
0
int main(int argc, char *argv[])
{
    int i, type, stat;
    int day, yr, Out_proj;
    int out_zone = 0;
    int overwrite;		/* overwrite output map */
    const char *mapset;
    const char *omap_name, *map_name, *iset_name, *iloc_name;
    struct pj_info info_in;
    struct pj_info info_out;
    const char *gbase;
    char date[40], mon[4];
    struct GModule *module;
    struct Option *omapopt, *mapopt, *isetopt, *ilocopt, *ibaseopt, *smax;
    struct Key_Value *in_proj_keys, *in_unit_keys;
    struct Key_Value *out_proj_keys, *out_unit_keys;
    struct line_pnts *Points, *Points2;
    struct line_cats *Cats;
    struct Map_info Map;
    struct Map_info Out_Map;
    struct bound_box src_box, tgt_box;
    int nowrap = 0, recommend_nowrap = 0;
    double lmax;
    struct
    {
	struct Flag *list;	/* list files in source location */
	struct Flag *transformz;	/* treat z as ellipsoidal height */
	struct Flag *wrap;		/* latlon output: wrap to 0,360 */
	struct Flag *no_topol;		/* do not build topology */
    } flag;

    G_gisinit(argv[0]);

    module = G_define_module();
    G_add_keyword(_("vector"));
    G_add_keyword(_("projection"));
    G_add_keyword(_("transformation"));
    G_add_keyword(_("import"));
    module->description = _("Re-projects a vector map from one location to the current location.");

    /* set up the options and flags for the command line parser */

    ilocopt = G_define_standard_option(G_OPT_M_LOCATION);
    ilocopt->required = YES;
    ilocopt->label = _("Location containing input vector map");
    ilocopt->guisection = _("Source");
    
    isetopt = G_define_standard_option(G_OPT_M_MAPSET);
    isetopt->label = _("Mapset containing input vector map");
    isetopt->description = _("Default: name of current mapset");
    isetopt->guisection = _("Source");

    mapopt = G_define_standard_option(G_OPT_V_INPUT);
    mapopt->required = NO;
    mapopt->label = _("Name of input vector map to re-project");
    mapopt->description = NULL;
    mapopt->guisection = _("Source");
    
    ibaseopt = G_define_standard_option(G_OPT_M_DBASE);
    ibaseopt->label = _("Path to GRASS database of input location");
    
    smax = G_define_option();
    smax->key = "smax";
    smax->type = TYPE_DOUBLE;
    smax->required = NO;
    smax->answer = "10000";
    smax->label = _("Maximum segment length in meters in output vector map");
    smax->description = _("Increases accuracy of reprojected shapes, disable with smax=0");
    smax->guisection = _("Target");

    omapopt = G_define_standard_option(G_OPT_V_OUTPUT);
    omapopt->required = NO;
    omapopt->description = _("Name for output vector map (default: input)");
    omapopt->guisection = _("Target");

    flag.list = G_define_flag();
    flag.list->key = 'l';
    flag.list->description = _("List vector maps in input mapset and exit");

    flag.transformz = G_define_flag();
    flag.transformz->key = 'z';
    flag.transformz->description = _("3D vector maps only");
    flag.transformz->label =
	_("Assume z coordinate is ellipsoidal height and "
	  "transform if possible");
    flag.transformz->guisection = _("Target");

    flag.wrap = G_define_flag();
    flag.wrap->key = 'w';
    flag.wrap->description = _("Latlon output only, default is -180,180");
    flag.wrap->label =
	_("Disable wrapping to -180,180 for latlon output");
    flag.transformz->guisection = _("Target");

    flag.no_topol = G_define_flag();
    flag.no_topol->key = 'b';
    flag.no_topol->label = _("Do not build vector topology");
    flag.no_topol->description = _("Recommended for massive point projection");

    /* The parser checks if the map already exists in current mapset,
       we switch out the check and do it
       in the module after the parser */
    overwrite = G_check_overwrite(argc, argv);

    if (G_parser(argc, argv))
	exit(EXIT_FAILURE);

    /* start checking options and flags */
    /* set input vector map name and mapset */
    map_name = mapopt->answer;
    if (omapopt->answer)
	omap_name = omapopt->answer;
    else
	omap_name = map_name;
    if (omap_name && !flag.list->answer && !overwrite &&
	G_find_vector2(omap_name, G_mapset()))
	G_fatal_error(_("option <%s>: <%s> exists. To overwrite, use the --overwrite flag"), omapopt->key,
		      omap_name);
    if (isetopt->answer)
	iset_name = isetopt->answer;
    else
	iset_name = G_store(G_mapset());

    iloc_name = ilocopt->answer;

    if (ibaseopt->answer)
	gbase = ibaseopt->answer;
    else
	gbase = G_store(G_gisdbase());

    if (!ibaseopt->answer && strcmp(iloc_name, G_location()) == 0)
	G_fatal_error(_("Input and output locations can not be the same"));

    lmax = atof(smax->answer);
    if (lmax < 0)
	lmax = 0;

    Out_proj = G_projection();
    if (Out_proj == PROJECTION_LL && flag.wrap->answer)
	nowrap = 1;
    
    G_begin_distance_calculations();

    /* Change the location here and then come back */

    select_target_env();
    G_setenv_nogisrc("GISDBASE", gbase);
    G_setenv_nogisrc("LOCATION_NAME", iloc_name);
    stat = G_mapset_permissions(iset_name);
    
    if (stat >= 0) {		/* yes, we can access the mapset */
	/* if requested, list the vector maps in source location - MN 5/2001 */
	if (flag.list->answer) {
	    int i;
	    char **list;
	    G_verbose_message(_("Checking location <%s> mapset <%s>"),
			      iloc_name, iset_name);
	    list = G_list(G_ELEMENT_VECTOR, G_getenv_nofatal("GISDBASE"),
			  G_getenv_nofatal("LOCATION_NAME"), iset_name);
	    if (list[0]) {
		for (i = 0; list[i]; i++) {
		    fprintf(stdout, "%s\n", list[i]);
		}
		fflush(stdout);
	    }
	    else {
		G_important_message(_("No vector maps found"));
	    }
	    exit(EXIT_SUCCESS);	/* leave v.proj after listing */
	}

	if (mapopt->answer == NULL) {
	    G_fatal_error(_("Required parameter <%s> not set"), mapopt->key);
	}

	G_setenv_nogisrc("MAPSET", iset_name);
	/* Make sure map is available */
	mapset = G_find_vector2(map_name, iset_name);
	if (mapset == NULL)
	    G_fatal_error(_("Vector map <%s> in location <%s> mapset <%s> not found"),
			  map_name, iloc_name, iset_name);

	 /*** Get projection info for input mapset ***/
	in_proj_keys = G_get_projinfo();
	if (in_proj_keys == NULL)
	    exit(EXIT_FAILURE);

	/* apparently the +over switch must be set in the input projection,
	 * not the output latlon projection */
	if (Out_proj == PROJECTION_LL && nowrap == 1)
	    G_set_key_value("+over", "defined", in_proj_keys);

	in_unit_keys = G_get_projunits();
	if (in_unit_keys == NULL)
	    exit(EXIT_FAILURE);

	if (pj_get_kv(&info_in, in_proj_keys, in_unit_keys) < 0)
	    exit(EXIT_FAILURE);

	Vect_set_open_level(1);
	G_debug(1, "Open old: location: %s mapset : %s", G_location_path(),
		G_mapset());
	if (Vect_open_old(&Map, map_name, mapset) < 0)
	    G_fatal_error(_("Unable to open vector map <%s>"), map_name);
    }
    else if (stat < 0)
    {				/* allow 0 (i.e. denied permission) */
	/* need to be able to read from others */
	if (stat == 0)
	    G_fatal_error(_("Mapset <%s> in input location <%s> - permission denied"),
			  iset_name, iloc_name);
	else
	    G_fatal_error(_("Mapset <%s> in input location <%s> not found"),
			  iset_name, iloc_name);
    }

    select_current_env();

    /****** get the output projection parameters ******/
    out_proj_keys = G_get_projinfo();
    if (out_proj_keys == NULL)
	exit(EXIT_FAILURE);

    out_unit_keys = G_get_projunits();
    if (out_unit_keys == NULL)
	exit(EXIT_FAILURE);

    if (pj_get_kv(&info_out, out_proj_keys, out_unit_keys) < 0)
	exit(EXIT_FAILURE);

    G_free_key_value(in_proj_keys);
    G_free_key_value(in_unit_keys);
    G_free_key_value(out_proj_keys);
    G_free_key_value(out_unit_keys);

    if (G_verbose() == G_verbose_max()) {
	pj_print_proj_params(&info_in, &info_out);
    }

    /* Initialize the Point / Cat structure */
    Points = Vect_new_line_struct();
    Points2 = Vect_new_line_struct();
    Cats = Vect_new_cats_struct();

    /* test if latlon wrapping to -180,180 should be disabled */
    if (Out_proj == PROJECTION_LL && nowrap == 0) {
	int first = 1, counter = 0;
	double x, y;
	
	/* Cycle through all lines */
	Vect_rewind(&Map);
	while (1) {
	    type = Vect_read_next_line(&Map, Points, Cats);	/* read line */
	    if (type == 0)
		continue;		/* Dead */

	    if (type == -1)
		G_fatal_error(_("Reading input vector map"));
	    if (type == -2)
		break;
		
	    if (first && Points->n_points > 0) {
		first = 0;
		src_box.E = src_box.W = Points->x[0];
		src_box.N = src_box.S = Points->y[0];
		src_box.T = src_box.B = Points->z[0];
	    }
	    for (i = 0; i < Points->n_points; i++) {
		if (src_box.E < Points->x[i])
		    src_box.E = Points->x[i];
		if (src_box.W > Points->x[i])
		    src_box.W = Points->x[i];
		if (src_box.N < Points->y[i])
		    src_box.N = Points->y[i];
		if (src_box.S > Points->y[i])
		    src_box.S = Points->y[i];
	    }
	    counter++;
	}
	if (counter == 0) {
	    G_warning(_("Input vector map <%s> is empty"), omap_name);
	    exit(EXIT_SUCCESS);
	}
	/* NW corner */
	x = src_box.W;
	y = src_box.N;
	if (pj_do_transform(1, &x, &y, NULL,
			    &info_in, &info_out) < 0) {
	    G_fatal_error(_("Error in pj_do_transform"));
	}
	tgt_box.E = x;
	tgt_box.W = x;
	tgt_box.N = y;
	tgt_box.S = y;
	/* SW corner */
	x = src_box.W;
	y = src_box.S;
	if (pj_do_transform(1, &x, &y, NULL,
			    &info_in, &info_out) < 0) {
	    G_fatal_error(_("Error in pj_do_transform"));
	}
	if (tgt_box.W > x)
	    tgt_box.W = x;
	if (tgt_box.E < x)
	    tgt_box.E = x;
	if (tgt_box.N < y)
	    tgt_box.N = y;
	if (tgt_box.S > y)
	    tgt_box.S = y;
	/* NE corner */
	x = src_box.E;
	y = src_box.N;
	if (pj_do_transform(1, &x, &y, NULL,
			    &info_in, &info_out) < 0) {
	    G_fatal_error(_("Error in pj_do_transform"));
	}
	if (tgt_box.W > x) {
	    tgt_box.E = x + 360;
	    recommend_nowrap = 1;
	}
	if (tgt_box.N < y)
	    tgt_box.N = y;
	if (tgt_box.S > y)
	    tgt_box.S = y;
	/* SE corner */
	x = src_box.E;
	y = src_box.S;
	if (pj_do_transform(1, &x, &y, NULL,
			    &info_in, &info_out) < 0) {
	    G_fatal_error(_("Error in pj_do_transform"));
	}
	if (tgt_box.W > x) {
	    if (tgt_box.E < x + 360)
		tgt_box.E = x + 360;
	    recommend_nowrap = 1;
	}
	if (tgt_box.N < y)
	    tgt_box.N = y;
	if (tgt_box.S > y)
	    tgt_box.S = y;
    }

    G_debug(1, "Open new: location: %s mapset : %s", G_location_path(),
	    G_mapset());

    if (Vect_open_new(&Out_Map, omap_name, Vect_is_3d(&Map)) < 0)
	G_fatal_error(_("Unable to create vector map <%s>"), omap_name);

    Vect_set_error_handler_io(NULL, &Out_Map); /* register standard i/o error handler */
    
    Vect_copy_head_data(&Map, &Out_Map);
    Vect_hist_copy(&Map, &Out_Map);
    Vect_hist_command(&Out_Map);

    out_zone = info_out.zone;
    Vect_set_zone(&Out_Map, out_zone);

    /* Read and write header info */
    sprintf(date, "%s", G_date());
    sscanf(date, "%*s%s%d%*s%d", mon, &day, &yr);
    if (yr < 2000)
	yr = yr - 1900;
    else
	yr = yr - 2000;
    sprintf(date, "%s %d %d", mon, day, yr);
    Vect_set_date(&Out_Map, date);

    /* line densification works only with vector topology */
    if (Map.format != GV_FORMAT_NATIVE)
	lmax = 0;

    /* Cycle through all lines */
    Vect_rewind(&Map);
    i = 0;
    G_message(_("Reprojecting primitives ..."));
    while (TRUE) {
	++i;
	G_progress(i, 1e3);
	type = Vect_read_next_line(&Map, Points, Cats);	/* read line */
	if (type == 0)
	    continue;		/* Dead */

	if (type == -1)
	    G_fatal_error(_("Reading input vector map"));
	if (type == -2)
	    break;

	Vect_line_prune(Points);
	if (lmax > 0 && (type & GV_LINES) && Points->n_points > 1) {
	    double x1, y1, z1, x2, y2, z2;
	    double dx, dy, dz;
	    double l;
	    int i, n;

	    Vect_reset_line(Points2);
	    for (i = 0; i < Points->n_points - 1; i++) {
		x1 = Points->x[i];
		y1 = Points->y[i];
		z1 = Points->z[i];
		n = i + 1;
		x2 = Points->x[n];
		y2 = Points->y[n];
		z2 = Points->z[n];

		dx = x2 - x1;
		dy = y2 - y1;
		dz = z2 - z1;

		if (pj_do_transform(1, &x1, &y1,
				    flag.transformz->answer ? &z1 : NULL,
				    &info_in, &info_out) < 0) {
		  G_fatal_error(_("Unable to re-project vector map <%s> from <%s>"),
				Vect_get_full_name(&Map), ilocopt->answer);
		}

		if (pj_do_transform(1, &x2, &y2,
				    flag.transformz->answer ? &z2 : NULL,
				    &info_in, &info_out) < 0) {
		  G_fatal_error(_("Unable to re-project vector map <%s> from <%s>"),
				Vect_get_full_name(&Map), ilocopt->answer);
		}

		Vect_append_point(Points2, x1, y1, z1);

		l = G_distance(x1, y1, x2, y2);

		if (l > lmax) {
		    int j;
		    double x, y, z;

		    x1 = Points->x[i];
		    y1 = Points->y[i];
		    z1 = Points->z[i];

		    n = ceil(l / lmax);

		    for (j = 1; j < n; j++) {
			x = x1 + dx * j / n;
			y = y1 + dy * j / n;
			z = z1 + dz * j / n;

			if (pj_do_transform(1, &x, &y,
					    flag.transformz->answer ? &z : NULL,
					    &info_in, &info_out) < 0) {
			  G_fatal_error(_("Unable to re-project vector map <%s> from <%s>"),
					Vect_get_full_name(&Map), ilocopt->answer);
			}
			Vect_append_point(Points2, x, y, z);
		    }
		}
	    }
	    Vect_append_point(Points2, x2, y2, z2);
	    Vect_write_line(&Out_Map, type, Points2, Cats);	/* write line */
	}
	else {
	    if (pj_do_transform(Points->n_points, Points->x, Points->y,
				flag.transformz->answer ? Points->z : NULL,
				&info_in, &info_out) < 0) {
	      G_fatal_error(_("Unable to re-project vector map <%s> from <%s>"),
			    Vect_get_full_name(&Map), ilocopt->answer);
	    }

	    Vect_write_line(&Out_Map, type, Points, Cats);	/* write line */
	}
    }				/* end lines section */
    G_progress(1, 1);

    /* Copy tables */
    if (Vect_copy_tables(&Map, &Out_Map, 0))
        G_warning(_("Failed to copy attribute table to output map"));

    Vect_close(&Map);

    if (!flag.no_topol->answer)
        Vect_build(&Out_Map);
    Vect_close(&Out_Map);

    if (recommend_nowrap)
	G_important_message(_("Try to disable wrapping to -180,180 "
			      "if topological errors occurred"));

    exit(EXIT_SUCCESS);
}
Esempio n. 9
0
int main( int argc, char **argv )
{
  struct GModule *module;
  struct Option *info_opt, *rast_opt, *vect_opt, *coor_opt, *north_opt, *south_opt, *east_opt, *west_opt, *rows_opt, *cols_opt;
  struct Cell_head window;

  /* Initialize the GIS calls */
  G_gisinit( argv[0] );

  module = G_define_module();
  module->description = ( "Get info about locations,mapsets,maps" );

  info_opt = G_define_option();
  info_opt->key = "info";
  info_opt->type = TYPE_STRING;
  info_opt->description = "info key";
  info_opt->options = "proj,window,size,query,info,colors,stats";

  rast_opt = G_define_standard_option( G_OPT_R_INPUT );
  rast_opt->key = "rast";
  rast_opt->required = NO;

  vect_opt = G_define_standard_option( G_OPT_V_INPUT );
  vect_opt->key = "vect";
  vect_opt->required = NO;

  coor_opt = G_define_option();
  coor_opt->key = "coor";
  coor_opt->type = TYPE_DOUBLE;
  coor_opt->multiple = YES;

  north_opt = G_define_option();
  north_opt->key = "north";
  north_opt->type = TYPE_STRING;

  south_opt = G_define_option();
  south_opt->key = "south";
  south_opt->type = TYPE_STRING;

  east_opt = G_define_option();
  east_opt->key = "east";
  east_opt->type = TYPE_STRING;

  west_opt = G_define_option();
  west_opt->key = "west";
  west_opt->type = TYPE_STRING;

  rows_opt = G_define_option();
  rows_opt->key = "rows";
  rows_opt->type = TYPE_INTEGER;

  cols_opt = G_define_option();
  cols_opt->key = "cols";
  cols_opt->type = TYPE_INTEGER;

  if ( G_parser( argc, argv ) )
    exit( EXIT_FAILURE );


  if ( strcmp( "proj", info_opt->answer ) == 0 )
  {
    G_get_window( &window );
    /* code from g.proj */
    if ( window.proj != PROJECTION_XY )
    {
      struct Key_Value *projinfo, *projunits;
      char *wkt;
      projinfo = G_get_projinfo();
      projunits = G_get_projunits();
      wkt = GPJ_grass_to_wkt( projinfo, projunits,  0, 0 );
      fprintf( stdout, "%s", wkt );
    }
  }
  else if ( strcmp( "window", info_opt->answer ) == 0 )
  {
    if ( rast_opt->answer )
    {
      G_get_cellhd( rast_opt->answer, "", &window );
      fprintf( stdout, "%f,%f,%f,%f", window.west, window.south, window.east, window.north );
    }
    else if ( vect_opt->answer )
    {
      G_fatal_error( "Not yet supported" );
    }
  }
  // raster width and height
  else if ( strcmp( "size", info_opt->answer ) == 0 )
  {
    if ( rast_opt->answer )
    {
      G_get_cellhd( rast_opt->answer, "", &window );
      fprintf( stdout, "%d,%d", window.cols, window.rows );
    }
    else if ( vect_opt->answer )
    {
      G_fatal_error( "Not yet supported" );
    }
  }
  // raster informations
  else if ( strcmp( "info", info_opt->answer ) == 0 )
  {
    struct FPRange range;
    double zmin, zmax;

    // Data type
    RASTER_MAP_TYPE raster_type = G_raster_map_type( rast_opt->answer, "" );
    fprintf( stdout, "TYPE:%d\n", raster_type );

    // Statistics
    if ( G_read_fp_range( rast_opt->answer, "", &range ) < 0 )
    {
      G_fatal_error(( "Unable to read range file" ) );
    }
    G_get_fp_range_min_max( &range, &zmin, &zmax );
    fprintf( stdout, "MIN_VALUE:%.17e\n", zmin );
    fprintf( stdout, "MAX_VALUE:%.17e\n", zmax );
  }
  else if ( strcmp( "colors", info_opt->answer ) == 0 )
  {
    // Color table
    struct Colors colors;
    int i, ccount;
    if ( G_read_colors( rast_opt->answer, "", &colors ) == 1 )
    {
      //int maxcolor;
      //CELL min, max;

      //G_get_color_range ( &min, &max, &colors);
      ccount = G_colors_count( &colors );
      for ( i = ccount - 1; i >= 0; i-- )
      {
        DCELL val1, val2;
        unsigned char r1, g1, b1, r2, g2, b2;

        G_get_f_color_rule( &val1, &r1, &g1, &b1, &val2, &r2, &g2, &b2, &colors, i );
        fprintf( stdout, "%.17e %.17e %d %d %d %d %d %d\n", val1, val2, r1, g1, b1, r2, g2, b2 );
      }
    }
  }

  else if ( strcmp( "query", info_opt->answer ) == 0 )
  {
    double x, y;
    int row, col;
    //x = atof( coor_opt->answers[0] );
    //y = atof( coor_opt->answers[1] );
    if ( rast_opt->answer )
    {
      int fd;
      RASTER_MAP_TYPE rast_type;
      DCELL *dcell;
      CELL *cell;
      char buff[101];
      G_get_cellhd( rast_opt->answer, "", &window );
      G_set_window( &window );
      fd = G_open_cell_old( rast_opt->answer, "" );
      // wait for coors from stdin
      while ( fgets( buff, 100, stdin ) != 0 )
      {
        if ( sscanf( buff, "%lf%lf", &x, &y ) != 2 )
        {
          fprintf( stdout, "value:error\n" );
        }
        else
        {
          col = ( int ) G_easting_to_col( x, &window );
          row = ( int ) G_northing_to_row( y, &window );
          if ( col == window.cols )
            col--;
          if ( row == window.rows )
            row--;

          if ( col < 0 || col > window.cols || row < 0 || row > window.rows )
          {
            fprintf( stdout, "value:out\n" );
          }
          else
          {
            void *ptr;
            double val;

#if defined(GRASS_VERSION_MAJOR) && defined(GRASS_VERSION_MINOR) && \
    ( ( GRASS_VERSION_MAJOR == 6 && GRASS_VERSION_MINOR > 2 ) || GRASS_VERSION_MAJOR > 6 )
            rast_type = G_get_raster_map_type( fd );
#else
            rast_type = G_raster_map_type( rast_opt->answer, "" );
#endif
            cell = G_allocate_c_raster_buf();
            dcell = G_allocate_d_raster_buf();

            if ( rast_type == CELL_TYPE )
            {
              if ( G_get_c_raster_row( fd, cell, row ) < 0 )
              {
                G_fatal_error(( "Unable to read raster map <%s> row %d" ),
                              rast_opt->answer, row );
              }
              val = cell[col];
              ptr = &( cell[col] );
            }
            else
            {
              if ( G_get_d_raster_row( fd, dcell, row ) < 0 )
              {
                G_fatal_error(( "Unable to read raster map <%s> row %d" ),
                              rast_opt->answer, row );
              }
              val = dcell[col];
              ptr = &( dcell[col] );
            }
            if ( G_is_null_value( ptr, rast_type ) )
            {
              fprintf( stdout, "value:null\n" );
            }
            else
            {
              fprintf( stdout, "value:%f\n", val );
            }
          }
        }
        fflush( stdout );
      }
      G_close_cell( fd );
    }
    else if ( vect_opt->answer )
    {
      G_fatal_error( "Not yet supported" );
    }
  }
  else if ( strcmp( "stats", info_opt->answer ) == 0 )
  {
    if ( rast_opt->answer )
    {
      int fd;
      RASTER_MAP_TYPE rast_type;
      DCELL *dcell;
      CELL *cell;
      int ncols, nrows;
      int row, col;
      void *ptr;
      double val;
      double min = DBL_MAX;
      double max = -DBL_MAX;
      double sum = 0; // sum of values
      int count = 0; // count of non null values
      double mean = 0;
      double squares_sum = 0; // sum of squares
      double stdev = 0; // standard deviation

      G_get_cellhd( rast_opt->answer, "", &window );
      window.north = atof( north_opt->answer );
      window.south = atof( south_opt->answer );
      window.east = atof( east_opt->answer );
      window.west = atof( west_opt->answer );
      window.rows = ( int ) atoi( rows_opt->answer );
      window.cols = ( int ) atoi( cols_opt->answer );

      G_set_window( &window );
      fd = G_open_cell_old( rast_opt->answer, "" );

      ncols = G_window_cols();
      nrows = G_window_rows();

#if defined(GRASS_VERSION_MAJOR) && defined(GRASS_VERSION_MINOR) && \
    ( ( GRASS_VERSION_MAJOR == 6 && GRASS_VERSION_MINOR > 2 ) || GRASS_VERSION_MAJOR > 6 )
      rast_type = G_get_raster_map_type( fd );
#else
      rast_type = G_raster_map_type( rast_opt->answer, "" );
#endif
      cell = G_allocate_c_raster_buf();
      dcell = G_allocate_d_raster_buf();

      // Calc stats is very slow for large rasters -> prefer optimization for speed over
      // code length and readability (which is not currently true)
      for ( row = 0; row < nrows; row++ )
      {
        if ( rast_type == CELL_TYPE )
        {
          if ( G_get_c_raster_row( fd, cell, row ) < 0 )
          {
            G_fatal_error(( "Unable to read raster map <%s> row %d" ),
                          rast_opt->answer, row );
          }
        }
        else
        {
          if ( G_get_d_raster_row( fd, dcell, row ) < 0 )
          {
            G_fatal_error(( "Unable to read raster map <%s> row %d" ),
                          rast_opt->answer, row );
          }
        }

        for ( col = 0; col < ncols; col++ )
        {
          if ( rast_type == CELL_TYPE )
          {
            val = cell[col];
            ptr = &( cell[col] );
          }
          else
          {
            val = dcell[col];
            ptr = &( dcell[col] );
          }
          if ( ! G_is_null_value( ptr, rast_type ) )
          {
            if ( val < min ) min = val;
            if ( val > max ) max = val;
            sum += val;
            count++;
            squares_sum += pow( val, 2 );
          }
        }
      }
      mean = sum / count;
      squares_sum -= count * pow( mean, 2 );
      stdev = sqrt( squares_sum / ( count - 1 ) );

      fprintf( stdout, "MIN:%.17e\n", min );
      fprintf( stdout, "MAX:%.17e\n", max );
      fprintf( stdout, "SUM:%.17e\n", sum );
      fprintf( stdout, "MEAN:%.17e\n", mean );
      fprintf( stdout, "COUNT:%d\n", count );
      fprintf( stdout, "STDEV:%.17e\n", stdev );
      fprintf( stdout, "SQSUM:%.17e\n", squares_sum );

      G_close_cell( fd );
    }
    else if ( vect_opt->answer )
    {
      G_fatal_error( "Not yet supported" );
    }
  }

  exit( EXIT_SUCCESS );
}
Esempio n. 10
0
int main(int argc, char *argv[])
{
    struct GModule *module;
    struct _param {
        struct Option *dsn, *out, *layer, *spat, *where,
                   *min_area;
        struct Option *snap, *type, *outloc, *cnames;
    } param;
    struct _flag {
        struct Flag *list, *tlist, *no_clean, *z, *notab,
                   *region;
        struct Flag *over, *extend, *formats, *tolower, *no_import;
    } flag;

    int i, j, layer, arg_s_num, nogeom, ncnames;
    float xmin, ymin, xmax, ymax;
    int ncols = 0, type;
    double min_area, snap;
    char buf[2000], namebuf[2000], tempvect[GNAME_MAX];
    char *separator;

    struct Key_Value *loc_proj_info, *loc_proj_units;
    struct Key_Value *proj_info, *proj_units;
    struct Cell_head cellhd, loc_wind, cur_wind;
    char error_msg[8192];

    /* Vector */
    struct Map_info Map, Tmp, *Out;
    int cat;

    /* Attributes */
    struct field_info *Fi;
    dbDriver *driver;
    dbString sql, strval;
    int dim, with_z;

    /* OGR */
    OGRDataSourceH Ogr_ds;
    OGRLayerH Ogr_layer;
    OGRFieldDefnH Ogr_field;
    char *Ogr_fieldname;
    OGRFieldType Ogr_ftype;
    OGRFeatureH Ogr_feature;
    OGRFeatureDefnH Ogr_featuredefn;
    OGRGeometryH Ogr_geometry, Ogr_oRing, poSpatialFilter;
    OGRSpatialReferenceH Ogr_projection;
    OGREnvelope oExt;
    OGRwkbGeometryType Ogr_geom_type;

    int OFTIntegerListlength;

    char *output;
    char **layer_names;		/* names of layers to be imported */
    int *layers;		/* layer indexes */
    int nlayers;		/* number of layers to import */
    char **available_layer_names;	/* names of layers to be imported */
    int navailable_layers;
    int layer_id;
    unsigned int n_features, feature_count;
    int overwrite;
    double area_size;
    int use_tmp_vect;

    xmin = ymin = xmax = ymax = 0.0;
    loc_proj_info = loc_proj_units = NULL;
    Ogr_ds = Ogr_oRing = poSpatialFilter = NULL;
    OFTIntegerListlength = 40;	/* hack due to limitation in OGR */
    area_size = 0.0;
    use_tmp_vect = FALSE;

    G_gisinit(argv[0]);

    module = G_define_module();
    G_add_keyword(_("vector"));
    G_add_keyword(_("import"));
    module->description = _("Converts vector data into a GRASS vector map using OGR library.");

    param.dsn = G_define_option();
    param.dsn->key = "dsn";
    param.dsn->type = TYPE_STRING;
    param.dsn->required =YES;
    param.dsn->label = _("OGR datasource name");
    param.dsn->description = _("Examples:\n"
                               "\t\tESRI Shapefile: directory containing shapefiles\n"
                               "\t\tMapInfo File: directory containing mapinfo files");

    param.layer = G_define_option();
    param.layer->key = "layer";
    param.layer->type = TYPE_STRING;
    param.layer->required = NO;
    param.layer->multiple = YES;
    param.layer->label =
        _("OGR layer name. If not given, all available layers are imported");
    param.layer->description =
        _("Examples:\n" "\t\tESRI Shapefile: shapefile name\n"
          "\t\tMapInfo File: mapinfo file name");
    param.layer->guisection = _("Selection");

    param.out = G_define_standard_option(G_OPT_V_OUTPUT);
    param.out->required = NO;
    param.out->guisection = _("Output");

    param.spat = G_define_option();
    param.spat->key = "spatial";
    param.spat->type = TYPE_DOUBLE;
    param.spat->multiple = YES;
    param.spat->required = NO;
    param.spat->key_desc = "xmin,ymin,xmax,ymax";
    param.spat->label = _("Import subregion only");
    param.spat->guisection = _("Selection");
    param.spat->description =
        _("Format: xmin,ymin,xmax,ymax - usually W,S,E,N");

    param.where = G_define_standard_option(G_OPT_DB_WHERE);
    param.where->guisection = _("Selection");

    param.min_area = G_define_option();
    param.min_area->key = "min_area";
    param.min_area->type = TYPE_DOUBLE;
    param.min_area->required = NO;
    param.min_area->answer = "0.0001";
    param.min_area->label =
        _("Minimum size of area to be imported (square units)");
    param.min_area->guisection = _("Selection");
    param.min_area->description = _("Smaller areas and "
                                    "islands are ignored. Should be greater than snap^2");

    param.type = G_define_standard_option(G_OPT_V_TYPE);
    param.type->options = "point,line,boundary,centroid";
    param.type->answer = "";
    param.type->description = _("Optionally change default input type");
    param.type->descriptions =
        _("point;import area centroids as points;"
          "line;import area boundaries as lines;"
          "boundary;import lines as area boundaries;"
          "centroid;import points as centroids");
    param.type->guisection = _("Selection");

    param.snap = G_define_option();
    param.snap->key = "snap";
    param.snap->type = TYPE_DOUBLE;
    param.snap->required = NO;
    param.snap->answer = "-1";
    param.snap->label = _("Snapping threshold for boundaries");
    param.snap->description = _("'-1' for no snap");

    param.outloc = G_define_option();
    param.outloc->key = "location";
    param.outloc->type = TYPE_STRING;
    param.outloc->required = NO;
    param.outloc->description = _("Name for new location to create");
    param.outloc->key_desc = "name";

    param.cnames = G_define_option();
    param.cnames->key = "cnames";
    param.cnames->type = TYPE_STRING;
    param.cnames->required = NO;
    param.cnames->multiple = YES;
    param.cnames->description =
        _("List of column names to be used instead of original names, "
          "first is used for category column");
    param.cnames->guisection = _("Attributes");

    flag.list = G_define_flag();
    flag.list->key = 'l';
    flag.list->description = _("List available OGR layers in data source and exit");
    flag.list->suppress_required = YES;
    flag.list->guisection = _("Print");

    flag.tlist = G_define_flag();
    flag.tlist->key = 'a';
    flag.tlist->description = _("List available OGR layers including feature types "
                                "in data source and exit");
    flag.tlist->suppress_required = YES;
    flag.tlist->guisection = _("Print");

    flag.formats = G_define_flag();
    flag.formats->key = 'f';
    flag.formats->description = _("List supported formats and exit");
    flag.formats->suppress_required = YES;
    flag.formats->guisection = _("Print");

    /* if using -c, you lose topological information ! */
    flag.no_clean = G_define_flag();
    flag.no_clean->key = 'c';
    flag.no_clean->description = _("Do not clean polygons (not recommended)");
    flag.no_clean->guisection = _("Output");

    flag.z = G_define_flag();
    flag.z->key = 'z';
    flag.z->description = _("Create 3D output");
    flag.z->guisection = _("Output");

    flag.notab = G_define_flag();
    flag.notab->key = 't';
    flag.notab->description = _("Do not create attribute table");
    flag.notab->guisection = _("Attributes");

    flag.over = G_define_flag();
    flag.over->key = 'o';
    flag.over->description =
        _("Override dataset projection (use location's projection)");

    flag.region = G_define_flag();
    flag.region->key = 'r';
    flag.region->guisection = _("Selection");
    flag.region->description = _("Limit import to the current region");

    flag.extend = G_define_flag();
    flag.extend->key = 'e';
    flag.extend->description =
        _("Extend location extents based on new dataset");

    flag.tolower = G_define_flag();
    flag.tolower->key = 'w';
    flag.tolower->description =
        _("Change column names to lowercase characters");
    flag.tolower->guisection = _("Attributes");

    flag.no_import = G_define_flag();
    flag.no_import->key = 'i';
    flag.no_import->description =
        _("Create the location specified by the \"location\" parameter and exit."
          " Do not import the vector data.");

    /* The parser checks if the map already exists in current mapset, this is
     * wrong if location options is used, so we switch out the check and do it
     * in the module after the parser */
    overwrite = G_check_overwrite(argc, argv);

    if (G_parser(argc, argv))
        exit(EXIT_FAILURE);

    G_begin_polygon_area_calculations();	/* Used in geom() */

    OGRRegisterAll();

    /* list supported formats */
    if (flag.formats->answer) {
        int iDriver;

        G_message(_("Available OGR Drivers:"));

        for (iDriver = 0; iDriver < OGRGetDriverCount(); iDriver++) {
            OGRSFDriverH poDriver = OGRGetDriver(iDriver);
            const char *pszRWFlag;

            if (OGR_Dr_TestCapability(poDriver, ODrCCreateDataSource))
                pszRWFlag = "rw";
            else
                pszRWFlag = "ro";

            fprintf(stdout, " %s (%s): %s\n",
                    OGR_Dr_GetName(poDriver),
                    pszRWFlag, OGR_Dr_GetName(poDriver));
        }
        exit(EXIT_SUCCESS);
    }

    if (param.dsn->answer == NULL) {
        G_fatal_error(_("Required parameter <%s> not set"), param.dsn->key);
    }

    min_area = atof(param.min_area->answer);
    snap = atof(param.snap->answer);
    type = Vect_option_to_types(param.type);

    ncnames = 0;
    if (param.cnames->answers) {
        i = 0;
        while (param.cnames->answers[i++]) {
            ncnames++;
        }
    }

    /* Open OGR DSN */
    Ogr_ds = NULL;
    if (strlen(param.dsn->answer) > 0)
        Ogr_ds = OGROpen(param.dsn->answer, FALSE, NULL);

    if (Ogr_ds == NULL)
        G_fatal_error(_("Unable to open data source <%s>"), param.dsn->answer);

    /* Make a list of available layers */
    navailable_layers = OGR_DS_GetLayerCount(Ogr_ds);
    available_layer_names =
        (char **)G_malloc(navailable_layers * sizeof(char *));

    if (flag.list->answer || flag.tlist->answer)
        G_message(_("Data source <%s> (format '%s') contains %d layers:"),
                  param.dsn->answer,
                  OGR_Dr_GetName(OGR_DS_GetDriver(Ogr_ds)), navailable_layers);
    for (i = 0; i < navailable_layers; i++) {
        Ogr_layer = OGR_DS_GetLayer(Ogr_ds, i);
        Ogr_featuredefn = OGR_L_GetLayerDefn(Ogr_layer);
        Ogr_geom_type = OGR_FD_GetGeomType(Ogr_featuredefn);

        available_layer_names[i] =
            G_store((char *)OGR_FD_GetName(Ogr_featuredefn));

        if (flag.tlist->answer)
            fprintf(stdout, "%s (%s)\n", available_layer_names[i],
                    OGRGeometryTypeToName(Ogr_geom_type));
        else if (flag.list->answer)
            fprintf(stdout, "%s\n", available_layer_names[i]);
    }
    if (flag.list->answer || flag.tlist->answer) {
        fflush(stdout);
        exit(EXIT_SUCCESS);
    }

    /* Make a list of layers to be imported */
    if (param.layer->answer) {	/* From option */
        nlayers = 0;
        while (param.layer->answers[nlayers])
            nlayers++;

        layer_names = (char **)G_malloc(nlayers * sizeof(char *));
        layers = (int *)G_malloc(nlayers * sizeof(int));

        for (i = 0; i < nlayers; i++) {
            layer_names[i] = G_store(param.layer->answers[i]);
            /* Find it in the source */
            layers[i] = -1;
            for (j = 0; j < navailable_layers; j++) {
                if (strcmp(available_layer_names[j], layer_names[i]) == 0) {
                    layers[i] = j;
                    break;
                }
            }
            if (layers[i] == -1)
                G_fatal_error(_("Layer <%s> not available"), layer_names[i]);
        }
    }
    else {			/* use list of all layers */
        nlayers = navailable_layers;
        layer_names = available_layer_names;
        layers = (int *)G_malloc(nlayers * sizeof(int));
        for (i = 0; i < nlayers; i++)
            layers[i] = i;
    }

    if (param.out->answer) {
        output = G_store(param.out->answer);
    }
    else {
        if (nlayers < 1)
            G_fatal_error(_("No OGR layers available"));
        output = G_store(layer_names[0]);
        G_message(_("All available OGR layers will be imported into vector map <%s>"), output);
    }

    if (!param.outloc->answer) {	/* Check if the map exists */
        if (G_find_vector2(output, G_mapset()) && !overwrite)
            G_fatal_error(_("Vector map <%s> already exists"),
                          output);
    }

    /* Get first imported layer to use for extents and projection check */
    Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layers[0]);

    if (flag.region->answer) {
        if (param.spat->answer)
            G_fatal_error(_("Select either the current region flag or the spatial option, not both"));

        G_get_window(&cur_wind);
        xmin = cur_wind.west;
        xmax = cur_wind.east;
        ymin = cur_wind.south;
        ymax = cur_wind.north;
    }
    if (param.spat->answer) {
        /* See as reference: gdal/ogr/ogr_capi_test.c */

        /* cut out a piece of the map */
        /* order: xmin,ymin,xmax,ymax */
        arg_s_num = 0;
        i = 0;
        while (param.spat->answers[i]) {
            if (i == 0)
                xmin = atof(param.spat->answers[i]);
            if (i == 1)
                ymin = atof(param.spat->answers[i]);
            if (i == 2)
                xmax = atof(param.spat->answers[i]);
            if (i == 3)
                ymax = atof(param.spat->answers[i]);
            arg_s_num++;
            i++;
        }
        if (arg_s_num != 4)
            G_fatal_error(_("4 parameters required for 'spatial' parameter"));
    }
    if (param.spat->answer || flag.region->answer) {
        G_debug(2, "cut out with boundaries: xmin:%f ymin:%f xmax:%f ymax:%f",
                xmin, ymin, xmax, ymax);

        /* in theory this could be an irregular polygon */
        poSpatialFilter = OGR_G_CreateGeometry(wkbPolygon);
        Ogr_oRing = OGR_G_CreateGeometry(wkbLinearRing);
        OGR_G_AddPoint(Ogr_oRing, xmin, ymin, 0.0);
        OGR_G_AddPoint(Ogr_oRing, xmin, ymax, 0.0);
        OGR_G_AddPoint(Ogr_oRing, xmax, ymax, 0.0);
        OGR_G_AddPoint(Ogr_oRing, xmax, ymin, 0.0);
        OGR_G_AddPoint(Ogr_oRing, xmin, ymin, 0.0);
        OGR_G_AddGeometryDirectly(poSpatialFilter, Ogr_oRing);

        OGR_L_SetSpatialFilter(Ogr_layer, poSpatialFilter);
    }

    if (param.where->answer) {
        /* select by attribute */
        OGR_L_SetAttributeFilter(Ogr_layer, param.where->answer);
    }

    /* fetch boundaries */
    if ((OGR_L_GetExtent(Ogr_layer, &oExt, 1)) == OGRERR_NONE) {
        G_get_window(&cellhd);
        cellhd.north = oExt.MaxY;
        cellhd.south = oExt.MinY;
        cellhd.west = oExt.MinX;
        cellhd.east = oExt.MaxX;
        cellhd.rows = 20;	/* TODO - calculate useful values */
        cellhd.cols = 20;
        cellhd.ns_res = (cellhd.north - cellhd.south) / cellhd.rows;
        cellhd.ew_res = (cellhd.east - cellhd.west) / cellhd.cols;
    }
    else {
        cellhd.north = 1.;
        cellhd.south = 0.;
        cellhd.west = 0.;
        cellhd.east = 1.;
        cellhd.top = 1.;
        cellhd.bottom = 1.;
        cellhd.rows = 1;
        cellhd.rows3 = 1;
        cellhd.cols = 1;
        cellhd.cols3 = 1;
        cellhd.depths = 1;
        cellhd.ns_res = 1.;
        cellhd.ns_res3 = 1.;
        cellhd.ew_res = 1.;
        cellhd.ew_res3 = 1.;
        cellhd.tb_res = 1.;
    }

    /* suppress boundary splitting ? */
    if (flag.no_clean->answer) {
        split_distance = -1.;
    }
    else {
        split_distance = 0.;
        area_size =
            sqrt((cellhd.east - cellhd.west) * (cellhd.north - cellhd.south));
    }

    /* Fetch input map projection in GRASS form. */
    proj_info = NULL;
    proj_units = NULL;
    Ogr_projection = OGR_L_GetSpatialRef(Ogr_layer);	/* should not be freed later */

    /* Do we need to create a new location? */
    if (param.outloc->answer != NULL) {
        /* Convert projection information non-interactively as we can't
         * assume the user has a terminal open */
        if (GPJ_osr_to_grass(&cellhd, &proj_info,
                             &proj_units, Ogr_projection, 0) < 0) {
            G_fatal_error(_("Unable to convert input map projection to GRASS "
                            "format; cannot create new location."));
        }
        else {
            G_make_location(param.outloc->answer, &cellhd,
                            proj_info, proj_units, NULL);
            G_message(_("Location <%s> created"), param.outloc->answer);
        }

        /* If the i flag is set, clean up? and exit here */
        if(flag.no_import->answer)
        {
            exit(EXIT_SUCCESS);
        }
    }
    else {
        int err = 0;

        /* Projection only required for checking so convert non-interactively */
        if (GPJ_osr_to_grass(&cellhd, &proj_info,
                             &proj_units, Ogr_projection, 0) < 0)
            G_warning(_("Unable to convert input map projection information to "
                        "GRASS format for checking"));

        /* Does the projection of the current location match the dataset? */
        /* G_get_window seems to be unreliable if the location has been changed */
        G__get_window(&loc_wind, "", "DEFAULT_WIND", "PERMANENT");
        /* fetch LOCATION PROJ info */
        if (loc_wind.proj != PROJECTION_XY) {
            loc_proj_info = G_get_projinfo();
            loc_proj_units = G_get_projunits();
        }

        if (flag.over->answer) {
            cellhd.proj = loc_wind.proj;
            cellhd.zone = loc_wind.zone;
            G_message(_("Over-riding projection check"));
        }
        else if (loc_wind.proj != cellhd.proj
                 || (err =
                         G_compare_projections(loc_proj_info, loc_proj_units,
                                               proj_info, proj_units)) != TRUE) {
            int i_value;

            strcpy(error_msg,
                   _("Projection of dataset does not"
                     " appear to match current location.\n\n"));

            /* TODO: output this info sorted by key: */
            if (loc_wind.proj != cellhd.proj || err != -2) {
                if (loc_proj_info != NULL) {
                    strcat(error_msg, _("GRASS LOCATION PROJ_INFO is:\n"));
                    for (i_value = 0; i_value < loc_proj_info->nitems;
                            i_value++)
                        sprintf(error_msg + strlen(error_msg), "%s: %s\n",
                                loc_proj_info->key[i_value],
                                loc_proj_info->value[i_value]);
                    strcat(error_msg, "\n");
                }

                if (proj_info != NULL) {
                    strcat(error_msg, _("Import dataset PROJ_INFO is:\n"));
                    for (i_value = 0; i_value < proj_info->nitems; i_value++)
                        sprintf(error_msg + strlen(error_msg), "%s: %s\n",
                                proj_info->key[i_value],
                                proj_info->value[i_value]);
                }
                else {
                    strcat(error_msg, _("Import dataset PROJ_INFO is:\n"));
                    if (cellhd.proj == PROJECTION_XY)
                        sprintf(error_msg + strlen(error_msg),
                                "Dataset proj = %d (unreferenced/unknown)\n",
                                cellhd.proj);
                    else if (cellhd.proj == PROJECTION_LL)
                        sprintf(error_msg + strlen(error_msg),
                                "Dataset proj = %d (lat/long)\n",
                                cellhd.proj);
                    else if (cellhd.proj == PROJECTION_UTM)
                        sprintf(error_msg + strlen(error_msg),
                                "Dataset proj = %d (UTM), zone = %d\n",
                                cellhd.proj, cellhd.zone);
                    else if (cellhd.proj == PROJECTION_SP)
                        sprintf(error_msg + strlen(error_msg),
                                "Dataset proj = %d (State Plane), zone = %d\n",
                                cellhd.proj, cellhd.zone);
                    else
                        sprintf(error_msg + strlen(error_msg),
                                "Dataset proj = %d (unknown), zone = %d\n",
                                cellhd.proj, cellhd.zone);
                }
            }
            else {
                if (loc_proj_units != NULL) {
                    strcat(error_msg, "GRASS LOCATION PROJ_UNITS is:\n");
                    for (i_value = 0; i_value < loc_proj_units->nitems;
                            i_value++)
                        sprintf(error_msg + strlen(error_msg), "%s: %s\n",
                                loc_proj_units->key[i_value],
                                loc_proj_units->value[i_value]);
                    strcat(error_msg, "\n");
                }

                if (proj_units != NULL) {
                    strcat(error_msg, "Import dataset PROJ_UNITS is:\n");
                    for (i_value = 0; i_value < proj_units->nitems; i_value++)
                        sprintf(error_msg + strlen(error_msg), "%s: %s\n",
                                proj_units->key[i_value],
                                proj_units->value[i_value]);
                }
            }
            sprintf(error_msg + strlen(error_msg),
                    _("\nYou can use the -o flag to %s to override this projection check.\n"),
                    G_program_name());
            strcat(error_msg,
                   _("Consider generating a new location with 'location' parameter"
                     " from input data set.\n"));
            G_fatal_error(error_msg);
        }
        else {
            G_message(_("Projection of input dataset and current location "
                        "appear to match"));
        }
    }

    db_init_string(&sql);
    db_init_string(&strval);

    /* open output vector */
    /* strip any @mapset from vector output name */
    G_find_vector(output, G_mapset());
    Vect_open_new(&Map, output, flag.z->answer != 0);
    Out = &Map;

    n_polygon_boundaries = 0;
    if (!flag.no_clean->answer) {
        /* check if we need a tmp vector */

        /* estimate distance for boundary splitting --> */
        for (layer = 0; layer < nlayers; layer++) {
            layer_id = layers[layer];

            Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layer_id);
            Ogr_featuredefn = OGR_L_GetLayerDefn(Ogr_layer);

            n_features = feature_count = 0;

            n_features = OGR_L_GetFeatureCount(Ogr_layer, 1);
            OGR_L_ResetReading(Ogr_layer);

            /* count polygons and isles */
            G_message(_("Counting polygons for %d features (OGR layer <%s>)..."),
                      n_features, layer_names[layer]);
            while ((Ogr_feature = OGR_L_GetNextFeature(Ogr_layer)) != NULL) {
                G_percent(feature_count++, n_features, 1);	/* show something happens */
                /* Geometry */
                Ogr_geometry = OGR_F_GetGeometryRef(Ogr_feature);
                if (Ogr_geometry != NULL) {
                    poly_count(Ogr_geometry, (type & GV_BOUNDARY));
                }
                OGR_F_Destroy(Ogr_feature);
            }
        }

        G_debug(1, "n polygon boundaries: %d", n_polygon_boundaries);
        if (n_polygon_boundaries > 50) {
            split_distance =
                area_size / log(n_polygon_boundaries);
            /* divisor is the handle: increase divisor to decrease split_distance */
            split_distance = split_distance / 5.;
            G_debug(1, "root of area size: %f", area_size);
            G_verbose_message(_("Boundary splitting distance in map units: %G"),
                              split_distance);
        }
        /* <-- estimate distance for boundary splitting */

        use_tmp_vect = n_polygon_boundaries > 0;

        if (use_tmp_vect) {
            /* open temporary vector, do the work in the temporary vector
             * at the end copy alive lines to output vector
             * in case of polygons this reduces the coor file size by a factor of 2 to 5
             * only needed when cleaning polygons */
            sprintf(tempvect, "%s_tmp", output);
            G_verbose_message(_("Using temporary vector <%s>"), tempvect);
            Vect_open_new(&Tmp, tempvect, flag.z->answer != 0);
            Out = &Tmp;
        }
    }

    Vect_hist_command(&Map);

    /* Points and lines are written immediately with categories. Boundaries of polygons are
     * written to the vector then cleaned and centroids are calculated for all areas in cleaan vector.
     * Then second pass through finds all centroids in each polygon feature and adds its category
     * to the centroid. The result is that one centroids may have 0, 1 ore more categories
     * of one ore more (more input layers) fields. */
    with_z = 0;
    for (layer = 0; layer < nlayers; layer++) {
        layer_id = layers[layer];

        Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layer_id);
        Ogr_featuredefn = OGR_L_GetLayerDefn(Ogr_layer);

        /* Add DB link */
        if (!flag.notab->answer) {
            char *cat_col_name = GV_KEY_COLUMN;

            if (nlayers == 1) {	/* one layer only */
                Fi = Vect_default_field_info(&Map, layer + 1, NULL,
                                             GV_1TABLE);
            }
            else {
                Fi = Vect_default_field_info(&Map, layer + 1, NULL,
                                             GV_MTABLE);
            }

            if (ncnames > 0) {
                cat_col_name = param.cnames->answers[0];
            }
            Vect_map_add_dblink(&Map, layer + 1, layer_names[layer], Fi->table,
                                cat_col_name, Fi->database, Fi->driver);

            ncols = OGR_FD_GetFieldCount(Ogr_featuredefn);
            G_debug(2, "%d columns", ncols);

            /* Create table */
            sprintf(buf, "create table %s (%s integer", Fi->table,
                    cat_col_name);
            db_set_string(&sql, buf);
            for (i = 0; i < ncols; i++) {

                Ogr_field = OGR_FD_GetFieldDefn(Ogr_featuredefn, i);
                Ogr_ftype = OGR_Fld_GetType(Ogr_field);

                G_debug(3, "Ogr_ftype: %i", Ogr_ftype);	/* look up below */

                if (i < ncnames - 1) {
                    Ogr_fieldname = G_store(param.cnames->answers[i + 1]);
                }
                else {
                    /* Change column names to [A-Za-z][A-Za-z0-9_]* */
                    Ogr_fieldname = G_store(OGR_Fld_GetNameRef(Ogr_field));
                    G_debug(3, "Ogr_fieldname: '%s'", Ogr_fieldname);

                    G_str_to_sql(Ogr_fieldname);

                    G_debug(3, "Ogr_fieldname: '%s'", Ogr_fieldname);

                }

                /* avoid that we get the 'cat' column twice */
                if (strcmp(Ogr_fieldname, GV_KEY_COLUMN) == 0) {
                    sprintf(namebuf, "%s_", Ogr_fieldname);
                    Ogr_fieldname = G_store(namebuf);
                }

                /* captial column names are a pain in SQL */
                if (flag.tolower->answer)
                    G_str_to_lower(Ogr_fieldname);

                if (strcmp(OGR_Fld_GetNameRef(Ogr_field), Ogr_fieldname) != 0) {
                    G_warning(_("Column name changed: '%s' -> '%s'"),
                              OGR_Fld_GetNameRef(Ogr_field), Ogr_fieldname);
                }

                /** Simple 32bit integer                     OFTInteger = 0        **/

                /** List of 32bit integers                   OFTIntegerList = 1    **/

                /** Double Precision floating point          OFTReal = 2           **/

                /** List of doubles                          OFTRealList = 3       **/

                /** String of ASCII chars                    OFTString = 4         **/

                /** Array of strings                         OFTStringList = 5     **/

                /** Double byte string (unsupported)         OFTWideString = 6     **/

                /** List of wide strings (unsupported)       OFTWideStringList = 7 **/

                /** Raw Binary data (unsupported)            OFTBinary = 8         **/

                /**                                          OFTDate = 9           **/

                /**                                          OFTTime = 10          **/

                /**                                          OFTDateTime = 11      **/


                if (Ogr_ftype == OFTInteger) {
                    sprintf(buf, ", %s integer", Ogr_fieldname);
                }
                else if (Ogr_ftype == OFTIntegerList) {
                    /* hack: treat as string */
                    sprintf(buf, ", %s varchar ( %d )", Ogr_fieldname,
                            OFTIntegerListlength);
                    G_warning(_("Writing column <%s> with fixed length %d chars (may be truncated)"),
                              Ogr_fieldname, OFTIntegerListlength);
                }
                else if (Ogr_ftype == OFTReal) {
                    sprintf(buf, ", %s double precision", Ogr_fieldname);
#if GDAL_VERSION_NUM >= 1320
                }
                else if (Ogr_ftype == OFTDate) {
                    sprintf(buf, ", %s date", Ogr_fieldname);
                }
                else if (Ogr_ftype == OFTTime) {
                    sprintf(buf, ", %s time", Ogr_fieldname);
                }
                else if (Ogr_ftype == OFTDateTime) {
                    sprintf(buf, ", %s datetime", Ogr_fieldname);
#endif
                }
                else if (Ogr_ftype == OFTString) {
                    int fwidth;

                    fwidth = OGR_Fld_GetWidth(Ogr_field);
                    /* TODO: read all records first and find the longest string length */
                    if (fwidth == 0) {
                        G_warning(_("Width for column %s set to 255 (was not specified by OGR), "
                                    "some strings may be truncated!"),
                                  Ogr_fieldname);
                        fwidth = 255;
                    }
                    sprintf(buf, ", %s varchar ( %d )", Ogr_fieldname,
                            fwidth);
                }
                else if (Ogr_ftype == OFTStringList) {
                    /* hack: treat as string */
                    sprintf(buf, ", %s varchar ( %d )", Ogr_fieldname,
                            OFTIntegerListlength);
                    G_warning(_("Writing column %s with fixed length %d chars (may be truncated)"),
                              Ogr_fieldname, OFTIntegerListlength);
                }
                else {
                    G_warning(_("Column type not supported (%s)"),
                              Ogr_fieldname);
                    buf[0] = 0;
                }
                db_append_string(&sql, buf);
                G_free(Ogr_fieldname);
            }
            db_append_string(&sql, ")");
            G_debug(3, db_get_string(&sql));

            driver =
                db_start_driver_open_database(Fi->driver,
                                              Vect_subst_var(Fi->database,
                                                      &Map));
            if (driver == NULL) {
                G_fatal_error(_("Unable open database <%s> by driver <%s>"),
                              Vect_subst_var(Fi->database, &Map), Fi->driver);
            }

            if (db_execute_immediate(driver, &sql) != DB_OK) {
                db_close_database(driver);
                db_shutdown_driver(driver);
                G_fatal_error(_("Unable to create table: '%s'"),
                              db_get_string(&sql));
            }

            if (db_create_index2(driver, Fi->table, cat_col_name) != DB_OK)
                G_warning(_("Unable to create index for table <%s>, key <%s>"),
                          Fi->table, cat_col_name);

            if (db_grant_on_table
                    (driver, Fi->table, DB_PRIV_SELECT,
                     DB_GROUP | DB_PUBLIC) != DB_OK)
                G_fatal_error(_("Unable to grant privileges on table <%s>"),
                              Fi->table);

            db_begin_transaction(driver);
        }

        /* Import feature */
        cat = 1;
        nogeom = 0;
        OGR_L_ResetReading(Ogr_layer);
        n_features = feature_count = 0;

        n_features = OGR_L_GetFeatureCount(Ogr_layer, 1);

        G_important_message(_("Importing %d features (OGR layer <%s>)..."),
                            n_features, layer_names[layer]);
        while ((Ogr_feature = OGR_L_GetNextFeature(Ogr_layer)) != NULL) {
            G_percent(feature_count++, n_features, 1);	/* show something happens */
            /* Geometry */
            Ogr_geometry = OGR_F_GetGeometryRef(Ogr_feature);
            if (Ogr_geometry == NULL) {
                nogeom++;
            }
            else {
                dim = OGR_G_GetCoordinateDimension(Ogr_geometry);
                if (dim > 2)
                    with_z = 1;

                geom(Ogr_geometry, Out, layer + 1, cat, min_area, type,
                     flag.no_clean->answer);
            }

            /* Attributes */
            if (!flag.notab->answer) {
                sprintf(buf, "insert into %s values ( %d", Fi->table, cat);
                db_set_string(&sql, buf);
                for (i = 0; i < ncols; i++) {
                    Ogr_field = OGR_FD_GetFieldDefn(Ogr_featuredefn, i);
                    Ogr_ftype = OGR_Fld_GetType(Ogr_field);
                    if (OGR_F_IsFieldSet(Ogr_feature, i)) {
                        if (Ogr_ftype == OFTInteger || Ogr_ftype == OFTReal) {
                            sprintf(buf, ", %s",
                                    OGR_F_GetFieldAsString(Ogr_feature, i));
#if GDAL_VERSION_NUM >= 1320
                            /* should we use OGR_F_GetFieldAsDateTime() here ? */
                        }
                        else if (Ogr_ftype == OFTDate || Ogr_ftype == OFTTime
                                 || Ogr_ftype == OFTDateTime) {
                            char *newbuf;

                            db_set_string(&strval, (char *)
                                          OGR_F_GetFieldAsString(Ogr_feature,
                                                                 i));
                            db_double_quote_string(&strval);
                            sprintf(buf, ", '%s'", db_get_string(&strval));
                            newbuf = G_str_replace(buf, "/", "-");	/* fix 2001/10/21 to 2001-10-21 */
                            sprintf(buf, "%s", newbuf);
#endif
                        }
                        else if (Ogr_ftype == OFTString ||
                                 Ogr_ftype == OFTIntegerList) {
                            db_set_string(&strval, (char *)
                                          OGR_F_GetFieldAsString(Ogr_feature,
                                                                 i));
                            db_double_quote_string(&strval);
                            sprintf(buf, ", '%s'", db_get_string(&strval));
                        }

                    }
                    else {
                        /* G_warning (_("Column value not set" )); */
                        if (Ogr_ftype == OFTInteger || Ogr_ftype == OFTReal) {
                            sprintf(buf, ", NULL");
#if GDAL_VERSION_NUM >= 1320
                        }
                        else if (Ogr_ftype == OFTString ||
                                 Ogr_ftype == OFTIntegerList ||
                                 Ogr_ftype == OFTDate) {
#else
                        }
                        else if (Ogr_ftype == OFTString ||
                                 Ogr_ftype == OFTIntegerList) {
#endif
                            sprintf(buf, ", ''");
                        }
                    }
                    db_append_string(&sql, buf);
                }
                db_append_string(&sql, " )");
                G_debug(3, db_get_string(&sql));

                if (db_execute_immediate(driver, &sql) != DB_OK) {
                    db_close_database(driver);
                    db_shutdown_driver(driver);
                    G_fatal_error(_("Cannot insert new row: %s"),
                                  db_get_string(&sql));
                }
            }

            OGR_F_Destroy(Ogr_feature);
            cat++;
        }
        G_percent(1, 1, 1);	/* finish it */

        if (!flag.notab->answer) {
            db_commit_transaction(driver);
            db_close_database_shutdown_driver(driver);
        }

        if (nogeom > 0)
            G_warning(_("%d %s without geometry"), nogeom,
                      nogeom == 1 ? "feature" : "features");
    }


    separator = "-----------------------------------------------------";
    G_message("%s", separator);

    if (use_tmp_vect) {
        /* TODO: is it necessary to build here? probably not, consumes time */
        /* GV_BUILD_BASE is sufficient to toggle boundary cleaning */
        Vect_build_partial(&Tmp, GV_BUILD_BASE);
    }

    if (use_tmp_vect && !flag.no_clean->answer &&
            Vect_get_num_primitives(Out, GV_BOUNDARY) > 0) {
        int ret, centr, ncentr, otype, n_overlaps, n_nocat;
        CENTR *Centr;
        struct spatial_index si;
        double x, y, total_area, overlap_area, nocat_area;
        struct bound_box box;
        struct line_pnts *Points;
        int nmodif;

        Points = Vect_new_line_struct();

        G_message("%s", separator);

        G_warning(_("Cleaning polygons, result is not guaranteed!"));

        if (snap >= 0) {
            G_message("%s", separator);
            G_message(_("Snapping boundaries (threshold = %.3e)..."), snap);
            Vect_snap_lines(&Tmp, GV_BOUNDARY, snap, NULL);
        }

        /* It is not to clean to snap centroids, but I have seen data with 2 duplicate polygons
         * (as far as decimal places were printed) and centroids were not identical */
        /* Disabled, because overlapping polygons result in many duplicate centroids anyway */
        /*
           fprintf ( stderr, separator );
           fprintf ( stderr, "Snap centroids (threshold 0.000001):\n" );
           Vect_snap_lines ( &Map, GV_CENTROID, 0.000001, NULL, stderr );
         */

        G_message("%s", separator);
        G_message(_("Breaking polygons..."));
        Vect_break_polygons(&Tmp, GV_BOUNDARY, NULL);

        /* It is important to remove also duplicate centroids in case of duplicate input polygons */
        G_message("%s", separator);
        G_message(_("Removing duplicates..."));
        Vect_remove_duplicates(&Tmp, GV_BOUNDARY | GV_CENTROID, NULL);

        /* in non-pathological cases, the bulk of the cleaning is now done */

        /* Vect_clean_small_angles_at_nodes() can change the geometry so that new intersections
         * are created. We must call Vect_break_lines(), Vect_remove_duplicates()
         * and Vect_clean_small_angles_at_nodes() until no more small angles are found */
        do {
            G_message("%s", separator);
            G_message(_("Breaking boundaries..."));
            Vect_break_lines(&Tmp, GV_BOUNDARY, NULL);

            G_message("%s", separator);
            G_message(_("Removing duplicates..."));
            Vect_remove_duplicates(&Tmp, GV_BOUNDARY, NULL);

            G_message("%s", separator);
            G_message(_("Cleaning boundaries at nodes..."));
            nmodif =
                Vect_clean_small_angles_at_nodes(&Tmp, GV_BOUNDARY, NULL);
        } while (nmodif > 0);

        /* merge boundaries */
        G_message("%s", separator);
        G_message(_("Merging boundaries..."));
        Vect_merge_lines(&Tmp, GV_BOUNDARY, NULL, NULL);

        G_message("%s", separator);
        if (type & GV_BOUNDARY) {	/* that means lines were converted to boundaries */
            G_message(_("Changing boundary dangles to lines..."));
            Vect_chtype_dangles(&Tmp, -1.0, NULL);
        }
        else {
            G_message(_("Removing dangles..."));
            Vect_remove_dangles(&Tmp, GV_BOUNDARY, -1.0, NULL);
        }

        G_message("%s", separator);
        if (type & GV_BOUNDARY) {
            G_message(_("Changing boundary bridges to lines..."));
            Vect_chtype_bridges(&Tmp, NULL);
        }
        else {
            G_message(_("Removing bridges..."));
            Vect_remove_bridges(&Tmp, NULL);
        }

        /* Boundaries are hopefully clean, build areas */
        G_message("%s", separator);
        Vect_build_partial(&Tmp, GV_BUILD_ATTACH_ISLES);

        /* Calculate new centroids for all areas, centroids have the same id as area */
        ncentr = Vect_get_num_areas(&Tmp);
        G_debug(3, "%d centroids/areas", ncentr);

        Centr = (CENTR *) G_calloc(ncentr + 1, sizeof(CENTR));
        Vect_spatial_index_init(&si, 0);
        for (centr = 1; centr <= ncentr; centr++) {
            Centr[centr].valid = 0;
            Centr[centr].cats = Vect_new_cats_struct();
            ret = Vect_get_point_in_area(&Tmp, centr, &x, &y);
            if (ret < 0) {
                G_warning(_("Unable to calculate area centroid"));
                continue;
            }

            Centr[centr].x = x;
            Centr[centr].y = y;
            Centr[centr].valid = 1;
            box.N = box.S = y;
            box.E = box.W = x;
            box.T = box.B = 0;
            Vect_spatial_index_add_item(&si, centr, &box);
        }

        /* Go through all layers and find centroids for each polygon */
        for (layer = 0; layer < nlayers; layer++) {
            G_message("%s", separator);
            G_message(_("Finding centroids for OGR layer <%s>..."), layer_names[layer]);
            layer_id = layers[layer];
            Ogr_layer = OGR_DS_GetLayer(Ogr_ds, layer_id);
            n_features = OGR_L_GetFeatureCount(Ogr_layer, 1);
            OGR_L_ResetReading(Ogr_layer);

            cat = 0;		/* field = layer + 1 */
            G_percent(cat, n_features, 2);
            while ((Ogr_feature = OGR_L_GetNextFeature(Ogr_layer)) != NULL) {
                cat++;
                G_percent(cat, n_features, 2);
                /* Geometry */
                Ogr_geometry = OGR_F_GetGeometryRef(Ogr_feature);
                if (Ogr_geometry != NULL) {
                    centroid(Ogr_geometry, Centr, &si, layer + 1, cat,
                             min_area, type);
                }

                OGR_F_Destroy(Ogr_feature);
            }
        }

        /* Write centroids */
        G_message("%s", separator);
        G_message(_("Writing centroids..."));

        n_overlaps = n_nocat = 0;
        total_area = overlap_area = nocat_area = 0.0;
        for (centr = 1; centr <= ncentr; centr++) {
            double area;

            G_percent(centr, ncentr, 2);

            area = Vect_get_area_area(&Tmp, centr);
            total_area += area;

            if (!(Centr[centr].valid)) {
                continue;
            }

            if (Centr[centr].cats->n_cats == 0) {
                nocat_area += area;
                n_nocat++;
                continue;
            }

            if (Centr[centr].cats->n_cats > 1) {
                Vect_cat_set(Centr[centr].cats, nlayers + 1,
                             Centr[centr].cats->n_cats);
                overlap_area += area;
                n_overlaps++;
            }

            Vect_reset_line(Points);
            Vect_append_point(Points, Centr[centr].x, Centr[centr].y, 0.0);
            if (type & GV_POINT)
                otype = GV_POINT;
            else
                otype = GV_CENTROID;
            Vect_write_line(&Tmp, otype, Points, Centr[centr].cats);
        }
        if (Centr)
            G_free(Centr);

        Vect_spatial_index_destroy(&si);

        if (n_overlaps > 0) {
            G_warning(_("%d areas represent more (overlapping) features, because polygons overlap "
                        "in input layer(s). Such areas are linked to more than 1 row in attribute table. "
                        "The number of features for those areas is stored as category in layer %d"),
                      n_overlaps, nlayers + 1);
        }

        G_message("%s", separator);

        Vect_hist_write(&Map, separator);
        Vect_hist_write(&Map, "\n");
        sprintf(buf, _("%d input polygons\n"), n_polygons);
        G_message(_("%d input polygons"), n_polygons);
        Vect_hist_write(&Map, buf);

        sprintf(buf, _("Total area: %G (%d areas)\n"), total_area, ncentr);
        G_message(_("Total area: %G (%d areas)"), total_area, ncentr);
        Vect_hist_write(&Map, buf);

        sprintf(buf, _("Overlapping area: %G (%d areas)\n"), overlap_area,
                n_overlaps);
        G_message(_("Overlapping area: %G (%d areas)"), overlap_area,
                  n_overlaps);
        Vect_hist_write(&Map, buf);

        sprintf(buf, _("Area without category: %G (%d areas)\n"), nocat_area,
                n_nocat);
        G_message(_("Area without category: %G (%d areas)"), nocat_area,
                  n_nocat);
        Vect_hist_write(&Map, buf);
        G_message("%s", separator);
    }

    /* needed?
     * OGR_DS_Destroy( Ogr_ds );
     */

    if (use_tmp_vect) {
        /* Copy temporary vector to output vector */
        Vect_copy_map_lines(&Tmp, &Map);
        /* release memory occupied by topo, we may need that memory for main output */
        Vect_set_release_support(&Tmp);
        Vect_close(&Tmp);
        Vect_delete(tempvect);
    }

    Vect_build(&Map);
    Vect_close(&Map);

    /* -------------------------------------------------------------------- */
    /*      Extend current window based on dataset.                         */
    /* -------------------------------------------------------------------- */
    if (flag.extend->answer) {
        G_get_default_window(&loc_wind);

        loc_wind.north = MAX(loc_wind.north, cellhd.north);
        loc_wind.south = MIN(loc_wind.south, cellhd.south);
        loc_wind.west = MIN(loc_wind.west, cellhd.west);
        loc_wind.east = MAX(loc_wind.east, cellhd.east);

        loc_wind.rows = (int)ceil((loc_wind.north - loc_wind.south)
                                  / loc_wind.ns_res);
        loc_wind.south = loc_wind.north - loc_wind.rows * loc_wind.ns_res;

        loc_wind.cols = (int)ceil((loc_wind.east - loc_wind.west)
                                  / loc_wind.ew_res);
        loc_wind.east = loc_wind.west + loc_wind.cols * loc_wind.ew_res;

        G__put_window(&loc_wind, "../PERMANENT", "DEFAULT_WIND");
    }

    if (with_z && !flag.z->answer)
        G_warning(_("Input data contains 3D features. Created vector is 2D only, "
                    "use -z flag to import 3D vector."));

    exit(EXIT_SUCCESS);
}
Esempio n. 11
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OGRGRASSLayer::OGRGRASSLayer( int layerIndex,  struct Map_info * map )
{
    CPLDebug ( "GRASS", "OGRGRASSLayer::OGRGRASSLayer layerIndex = %d", layerIndex );
    
    iLayerIndex = layerIndex;
    poMap = map; 
    poSRS = NULL;
    iNextId = 0;
    poPoints = Vect_new_line_struct();
    poCats = Vect_new_cats_struct();
    pszQuery = NULL;
    paQueryMatch = NULL;
    paSpatialMatch = NULL;

    iLayer = Vect_cidx_get_field_number ( poMap, iLayerIndex);
    CPLDebug ( "GRASS", "iLayer = %d", iLayer );
    
    poLink = Vect_get_field ( poMap, iLayer ); // May be NULL if not defined

    // Layer name
    if ( poLink && poLink->name )
    {
	pszName = CPLStrdup( poLink->name );	
    }
    else
    {	
	char buf[20]; 
	sprintf ( buf, "%d", iLayer ); 
	pszName = CPLStrdup( buf );
    }

    // Because we don't represent centroids as any simple feature, we have to scan
    // category index and create index of feature IDs pointing to category index
    nTotalCount = Vect_cidx_get_type_count(poMap,iLayer, GV_POINT|GV_LINES|GV_AREA);
    CPLDebug ( "GRASS", "nTotalCount = %d", nTotalCount );
    paFeatureIndex = (int *) CPLMalloc ( nTotalCount * sizeof(int) );
    
    int n = Vect_cidx_get_type_count(poMap,iLayer, GV_POINTS|GV_LINES|GV_AREA);
    int cnt = 0;
    for ( int i = 0; i < n; i++ ) 
    {
	int cat,type, id;
	
	Vect_cidx_get_cat_by_index ( poMap, iLayerIndex, i, &cat, &type, &id );
    
	if ( !( type & (GV_POINT|GV_LINES|GV_AREA) ) ) continue;
	paFeatureIndex[cnt++] = i;
    }

    poFeatureDefn = new OGRFeatureDefn( pszName );
    poFeatureDefn->Reference();

    // Get type definition
    int nTypes = Vect_cidx_get_num_types_by_index ( poMap, iLayerIndex );
    int types = 0;
    for ( int i = 0; i < nTypes; i++ ) {
	int type, count;
	Vect_cidx_get_type_count_by_index ( poMap, iLayerIndex, i, &type, &count);
	if ( !(type & (GV_POINT|GV_LINES|GV_AREA) ) ) continue;
	types |= type;
        CPLDebug ( "GRASS", "type = %d types = %d", type, types );
    }
    
    OGRwkbGeometryType eGeomType = wkbUnknown;
    if ( types == GV_LINE || types == GV_BOUNDARY || types == GV_LINES ) 
    {
        eGeomType = wkbLineString;
    } 
    else if ( types == GV_POINT )
    {
        eGeomType = wkbPoint;
    }
    else if ( types == GV_AREA )
    {
        CPLDebug ( "GRASS", "set wkbPolygon" );
        eGeomType = wkbPolygon;
    }

    if (Vect_is_3d(poMap))
        poFeatureDefn->SetGeomType ( (OGRwkbGeometryType)(eGeomType | wkb25DBit) );
    else
        poFeatureDefn->SetGeomType ( eGeomType );

    // Get attributes definition
    poDbString = (dbString*) CPLMalloc ( sizeof(dbString) );
    poCursor = (dbCursor*) CPLMalloc ( sizeof(dbCursor) );
    bCursorOpened = FALSE;

    poDriver = NULL;
    bHaveAttributes = false;
    db_init_string ( poDbString );
    if ( poLink ) 
    {
	if ( StartDbDriver() ) 
	{
	    db_set_string ( poDbString, poLink->table );
	    dbTable *table;
	    if ( db_describe_table ( poDriver, poDbString, &table) == DB_OK )
	    {
		nFields = db_get_table_number_of_columns ( table );
		iCatField = -1;
		for ( int i = 0; i < nFields; i++) 
		{
		    dbColumn *column = db_get_table_column ( table, i );
		    int ctype = db_sqltype_to_Ctype ( db_get_column_sqltype(column) );
    
		    OGRFieldType ogrFtype = OFTInteger;
 	     	    switch ( ctype ) {
			 case DB_C_TYPE_INT:
			    ogrFtype = OFTInteger;
			    break; 
			 case DB_C_TYPE_DOUBLE:
			    ogrFtype = OFTReal;
			    break; 
			 case DB_C_TYPE_STRING:
			    ogrFtype = OFTString;
			    break; 
			 case DB_C_TYPE_DATETIME:
			    ogrFtype = OFTDateTime;
			    break; 
		    }

		    CPLDebug ( "GRASS", "column = %s type = %d", 
			       db_get_column_name(column), ctype );
		    
		    OGRFieldDefn oField ( db_get_column_name(column), ogrFtype );
		    poFeatureDefn->AddFieldDefn( &oField );

		    if ( G_strcasecmp(db_get_column_name(column),poLink->key) == 0 )
		    {
			iCatField = i;
		    }
		}
		if ( iCatField >= 0  ) 
		{
    		    bHaveAttributes = true;
		}
		else
		{
		    CPLError( CE_Failure, CPLE_AppDefined, "Cannot find key field" );
		    db_close_database_shutdown_driver ( poDriver );
		    poDriver = NULL;
		}
	    }
	    else
	    {
		CPLError( CE_Failure, CPLE_AppDefined, "Cannot describe table %s", 
			  poLink->table );

	    }
	    db_close_database_shutdown_driver ( poDriver );
	    poDriver = NULL;
	}
    } 
	
    if ( !bHaveAttributes && iLayer > 0 ) // Because features in layer 0 have no cats  
    {
	OGRFieldDefn oField("cat", OFTInteger);
	poFeatureDefn->AddFieldDefn( &oField );
    }

    if ( getenv("GISBASE") )  // We have some projection info in GISBASE
    {
        struct Key_Value *projinfo, *projunits;

	// Note: we dont have to reset GISDBASE and LOCATION_NAME because 
	// OGRGRASSLayer constructor is called from OGRGRASSDataSource::Open
	// where those variables are set

        projinfo = G_get_projinfo();
	projunits = G_get_projunits();

	char *srsWkt = GPJ_grass_to_wkt ( projinfo, projunits, 0, 0);
	if ( srsWkt ) 
	{
	    poSRS = new OGRSpatialReference ( srsWkt );
	    CPLFree ( srsWkt );
	}

        G_free_key_value(projinfo);
        G_free_key_value(projunits);
    }
}
Esempio n. 12
0
/*!
  \brief Create GDAL settings for given raster map

  \param name map name
  \param map_type map type (CELL, FCELL, DCELL)

  \return pointer to allocated GDAL_link structure
  \return NULL on error
*/
struct GDAL_link *Rast_create_gdal_link(const char *name,
					RASTER_MAP_TYPE map_type)
{
#ifdef GDAL_LINK
    char path[GPATH_MAX];
    GDALDriverH driver;
    double transform[6];
    struct GDAL_link *gdal;
    FILE *fp;
    struct Key_Value *key_val;
    char buf[32];

    Rast__init_window();

    Rast_init_gdal();

    if (!G_is_initialized(&st->initialized)) {
	read_gdal_options();
	st->projinfo = G_get_projinfo();
	st->projunits = G_get_projunits();
#if 0
	/* We cannot use GPJ_grass_to_wkt() here because that would create a
	   circular dependency between libgis and libgproj */
	if (st->projinfo && st->projunits)
	    st->srswkt = GPJ_grass_to_wkt(st->projinfo, st->projunits);
#endif
	G_initialize_done(&st->initialized);
    }

    gdal = G_calloc(1, sizeof(struct GDAL_link));

    sprintf(path, "%s/%s%s", st->opts.dir, name, st->opts.ext);
    gdal->filename = G_store(path);
    gdal->band_num = 1;
    gdal->hflip = 0;
    gdal->vflip = 0;

    switch (map_type) {
    case CELL_TYPE:
	switch (R__.nbytes) {
	case 1:
	    gdal->type = GDT_Byte;
	    gdal->null_val = (DCELL) 0xFF;
	    break;
	case 2:
	    gdal->type = GDT_UInt16;
	    gdal->null_val = (DCELL) 0xFFFF;
	    break;
	case 3:
	case 4:
	    gdal->type = GDT_Int32;
	    gdal->null_val = (DCELL) 0x80000000U;
	    break;
	}
	break;
    case FCELL_TYPE:
	gdal->type = GDT_Float32;
	Rast_set_d_null_value(&gdal->null_val, 1);
	break;
    case DCELL_TYPE:
	gdal->type = GDT_Float64;
	Rast_set_d_null_value(&gdal->null_val, 1);
	break;
    default:
	G_fatal_error(_("Invalid map type <%d>"), map_type);
	break;
    }

    driver = (*pGDALGetDriverByName) (st->opts.format);
    if (!driver)
	G_fatal_error(_("Unable to get <%s> driver"), st->opts.format);

    /* Does driver support GDALCreate ? */
    if ((*pGDALGetMetadataItem) (driver, GDAL_DCAP_CREATE, NULL)) {
	gdal->data =
	    (*pGDALCreate)(driver, gdal->filename,
			   R__.wr_window.cols, R__.wr_window.rows,
			   1, gdal->type, st->opts.options);
	if (!gdal->data)
	    G_fatal_error(_("Unable to create <%s> dataset using <%s> driver"),
			  name, st->opts.format);
    }
    /* If not - create MEM driver for intermediate dataset. 
     * Check if raster can be created at all (with GDALCreateCopy) */
    else if ((*pGDALGetMetadataItem) (driver, GDAL_DCAP_CREATECOPY, NULL)) {
	GDALDriverH mem_driver;

	G_message(_("Driver <%s> does not support direct writing. "
		    "Using MEM driver for intermediate dataset."),
		  st->opts.format);

	mem_driver = (*pGDALGetDriverByName) ("MEM");
	if (!mem_driver)
	    G_fatal_error(_("Unable to get in-memory raster driver"));

	gdal->data =
	    (*pGDALCreate)(mem_driver, "",
			   R__.wr_window.cols, R__.wr_window.rows,
			   1, gdal->type, st->opts.options);
	if (!gdal->data)
	    G_fatal_error(_("Unable to create <%s> dataset using memory driver"),
			  name);
    }
    else
	G_fatal_error(_("Driver <%s> does not support creating rasters"),
		      st->opts.format);

    gdal->band = (*pGDALGetRasterBand) (gdal->data, gdal->band_num);

    (*pGDALSetRasterNoDataValue) (gdal->band, gdal->null_val);

    /* Set Geo Transform  */
    transform[0] = R__.wr_window.west;
    transform[1] = R__.wr_window.ew_res;
    transform[2] = 0.0;
    transform[3] = R__.wr_window.north;
    transform[4] = 0.0;
    transform[5] = -R__.wr_window.ns_res;

    if ((*pGDALSetGeoTransform) (gdal->data, transform) >= CE_Failure)
	G_warning(_("Unable to set geo transform"));

    if (st->srswkt)
	if ((*pGDALSetProjection) (gdal->data, st->srswkt) == CE_Failure)
	    G_warning(_("Unable to set projection"));

    fp = G_fopen_new_misc("cell_misc", "gdal", name);
    if (!fp)
	G_fatal_error(_("Unable to create cell_misc/%s/gdal file"), name);

    key_val = G_create_key_value();

    G_set_key_value("file", gdal->filename, key_val);

    sprintf(buf, "%d", gdal->band_num);
    G_set_key_value("band", buf, key_val);

    sprintf(buf, "%.22g", gdal->null_val);
    G_set_key_value("null", buf, key_val);

    sprintf(buf, "%d", gdal->type);
    G_set_key_value("type", buf, key_val);

    if (G_fwrite_key_value(fp, key_val) < 0)
	G_fatal_error(_("Error writing cell_misc/%s/gdal file"), name);

    G_free_key_value(key_val);

    fclose(fp);

    return gdal;
#else
    return NULL;
#endif
}
Esempio n. 13
0
/*!
   \brief Create new OGR layer in given OGR datasource (internal use only)

   V1_open_new_ogr() is required to be called before this function.

   List of currently supported types:
    - GV_POINT     (wkbPoint)
    - GV_LINE      (wkbLineString)
    - GV_BOUNDARY  (wkb_Polygon)
   \param[in,out] Map pointer to Map_info structure
   \param type feature type (GV_POINT, GV_LINE, ...)

   \return 0 success
   \return -1 error 
*/
int create_ogr_layer(struct Map_info *Map, int type)
{
    int ndblinks;
    OGRLayerH            Ogr_layer;
    OGRSpatialReferenceH Ogr_spatial_ref;
    
    struct field_info *Fi;
    struct Key_Value *projinfo, *projunits;
    struct Format_info_ogr *ogr_info;
    
    OGRwkbGeometryType Ogr_geom_type;
    char             **Ogr_layer_options;
    
    ogr_info = &(Map->fInfo.ogr);
    
    if (!ogr_info->driver_name ||
	!ogr_info->layer_name ||
	!ogr_info->ds)
	return -1;
    
    /* get spatial reference */
    projinfo  = G_get_projinfo();
    projunits = G_get_projunits();
    Ogr_spatial_ref = GPJ_grass_to_osr(projinfo, projunits);
    G_free_key_value(projinfo);
    G_free_key_value(projunits);
    
    /* determine geometry type */
    switch(type) {
    case GV_POINT:
	Ogr_geom_type = wkbPoint;
	break;
    case GV_LINE:
	Ogr_geom_type = wkbLineString;
	break;
    case GV_BOUNDARY:
	Ogr_geom_type = wkbPolygon;
	break;
    default:
	G_warning(_("Unsupported geometry type (%d)"), type);
	return -1;
    }
    
    /* check creation options */
    Ogr_layer_options = ogr_info->layer_options;
    if (Vect_is_3d(Map)) {
	if (strcmp(ogr_info->driver_name, "PostgreSQL") == 0) {
	    Ogr_layer_options = CSLSetNameValue(Ogr_layer_options, "DIM", "3");
	}
    }
    else {
	if (strcmp(ogr_info->driver_name, "PostgreSQL") == 0) {
	    Ogr_layer_options = CSLSetNameValue(Ogr_layer_options, "DIM", "2");
	}
    }

    /* create new OGR layer */
    Ogr_layer = OGR_DS_CreateLayer(ogr_info->ds, ogr_info->layer_name,
				   Ogr_spatial_ref, Ogr_geom_type, Ogr_layer_options);
    CSLDestroy(Ogr_layer_options);
    if (!Ogr_layer) {
	G_warning(_("Unable to create OGR layer <%s> in '%s'"),
		  ogr_info->layer_name, ogr_info->dsn);
	return -1;
    }
    ogr_info->layer = Ogr_layer;

    ndblinks = Vect_get_num_dblinks(Map);
    if (ndblinks > 0) {
	/* write also attributes */
	Fi = Vect_get_dblink(Map, 0);
	if (Fi) {
	    if (ndblinks > 1)
		G_warning(_("More layers defined, using driver <%s> and "
			    "database <%s>"), Fi->driver, Fi->database);
	    ogr_info->dbdriver = create_table(ogr_info->layer, Fi);
	    G_free(Fi);
	}
	else
	  G_warning(_("Database connection not defined. "
		      "Unable to write attributes."));
    }
    
    if (OGR_L_TestCapability(ogr_info->layer, OLCTransactions))
	OGR_L_StartTransaction(ogr_info->layer);

    return 0;
}