static int zoom1(int x, int y)
{ /* called by Input_pointer */
int top, bottom, left, right;
int n, row, col;
int nrows, ncols;
struct Cell_head cellhd;
int mag;
double magnification();
double north, south, east, west;
if (In_view(pick_view = VIEW_MAP1, x, y)) {
main_view = VIEW_MAP1;
zoom_view = VIEW_MAP1_ZOOM;
target_flag = 0;
}
else if (In_view(pick_view = VIEW_MAP2, x, y)) {
if (!pick_view->cell.configured)
return 0; /* ignore the mouse event */
main_view = VIEW_MAP2;
zoom_view = VIEW_MAP2_ZOOM;
target_flag = 1;
}
else if (In_view(pick_view = VIEW_MAP1_ZOOM, x, y)) {
if (!pick_view->cell.configured)
return 0; /* ignore the mouse event */
main_view = VIEW_MAP1;
zoom_view = VIEW_MAP1_ZOOM;
target_flag = 0;
}
else if (In_view(pick_view = VIEW_MAP2_ZOOM, x, y)) {
if (!pick_view->cell.configured)
return 0; /* ignore the mouse event */
main_view = VIEW_MAP2;
zoom_view = VIEW_MAP2_ZOOM;
target_flag = 1;
}
else
return 0; /* ignore the mouse event */
if (!pick_view->cell.configured)
return 0; /* just to be sure */
/*
* make sure point is within edges of image as well
*/
if (x <= pick_view->cell.left)
return 0;
if (x >= pick_view->cell.right)
return 0;
if (y <= pick_view->cell.top)
return 0;
if (y >= pick_view->cell.bottom)
return 0;
/*
* ok, erase menu messages
*/
Menu_msg("");
/* determine magnification of zoom */
if (zoom_view->cell.configured) {
if (zoom_view == pick_view)
mag = floor(magnification(zoom_view) + 1.0) + .1;
else
mag = ceil(magnification(zoom_view)) + .1;
}
else {
mag = floor(magnification(main_view) + 1.0) + .1;
}
if (!ask_magnification(&mag))
return 1;
/*
* Determine the the zoom window (ie, cellhd)
*/
G_copy(&cellhd, &main_view->cell.head, sizeof(cellhd));
cellhd.ns_res = main_view->cell.ns_res / mag;
cellhd.ew_res = main_view->cell.ew_res / mag;
cellhd.cols = (cellhd.east - cellhd.west) / cellhd.ew_res;
cellhd.rows = (cellhd.north - cellhd.south) / cellhd.ns_res;
/* convert x,y to col,row */
col = view_to_col(pick_view, x);
east = col_to_easting(&pick_view->cell.head, col, 0.5);
col = easting_to_col(&cellhd, east);
row = view_to_row(pick_view, y);
north = row_to_northing(&pick_view->cell.head, row, 0.5);
row = northing_to_row(&cellhd, north);
ncols = zoom_view->ncols;
nrows = zoom_view->nrows;
n = cellhd.cols - col;
if (n > col)
n = col;
if (n + n + 1 >= ncols) {
n = ncols / 2;
if (n + n + 1 >= ncols)
n--;
}
left = col - n;
right = col + n;
n = cellhd.rows - row;
if (n > row)
n = row;
if (n + n + 1 >= nrows) {
n = nrows / 2;
if (n + n + 1 >= nrows)
n--;
}
top = row - n;
bottom = row + n;
north = row_to_northing(&cellhd, top, 0.0);
west = col_to_easting(&cellhd, left, 0.0);
south = row_to_northing(&cellhd, bottom, 1.0);
east = col_to_easting(&cellhd, right, 1.0);
cellhd.north = north;
cellhd.south = south;
cellhd.east = east;
cellhd.west = west;
cellhd.rows = (cellhd.north - cellhd.south) / cellhd.ns_res;
cellhd.cols = (cellhd.east - cellhd.west) / cellhd.ew_res;
/*
* Outline the zoom window on the main map
* Turn previous one to grey.
*/
if (zoom_view->cell.configured) {
R_standard_color(GREY);
Outline_cellhd(main_view, &zoom_view->cell.head);
}
R_standard_color(RED);
Outline_cellhd(main_view, &cellhd);
/*
* zoom
*/
if (target_flag)
select_target_env();
G_copy(&zoom_view->cell.head, &cellhd, sizeof(cellhd));
Configure_view(zoom_view, pick_view->cell.name, pick_view->cell.mapset,
pick_view->cell.ns_res, pick_view->cell.ew_res);
drawcell(zoom_view);
select_current_env();
display_points(1);
return 1; /* pop back */
}
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);
}
int camera_angle(char *name)
{
int row, col, nrows, ncols;
double XC = group.XC;
double YC = group.YC;
double ZC = group.ZC;
double c_angle, c_angle_min, c_alt, c_az, slope, aspect;
double radians_to_degrees = 180.0 / M_PI;
/* double degrees_to_radians = M_PI / 180.0; */
DCELL e1, e2, e3, e4, e5, e6, e7, e8, e9;
double factor, V, H, dx, dy, dz, key;
double north, south, east, west, ns_med;
FCELL *fbuf0, *fbuf1, *fbuf2, *tmpbuf, *outbuf;
int elevfd, outfd;
struct Cell_head cellhd;
struct Colors colr;
FCELL clr_min, clr_max;
struct History hist;
char *type;
G_message(_("Calculating camera angle to local surface..."));
select_target_env();
/* align target window to elevation map, otherwise we get artefacts
* like in r.slope.aspect -a */
Rast_get_cellhd(elev_name, elev_mapset, &cellhd);
Rast_align_window(&target_window, &cellhd);
Rast_set_window(&target_window);
elevfd = Rast_open_old(elev_name, elev_mapset);
if (elevfd < 0) {
G_fatal_error(_("Could not open elevation raster"));
return 1;
}
nrows = target_window.rows;
ncols = target_window.cols;
outfd = Rast_open_new(name, FCELL_TYPE);
fbuf0 = Rast_allocate_buf(FCELL_TYPE);
fbuf1 = Rast_allocate_buf(FCELL_TYPE);
fbuf2 = Rast_allocate_buf(FCELL_TYPE);
outbuf = Rast_allocate_buf(FCELL_TYPE);
/* give warning if location units are different from meters and zfactor=1 */
factor = G_database_units_to_meters_factor();
if (factor != 1.0)
G_warning(_("Converting units to meters, factor=%.6f"), factor);
G_begin_distance_calculations();
north = Rast_row_to_northing(0.5, &target_window);
ns_med = Rast_row_to_northing(1.5, &target_window);
south = Rast_row_to_northing(2.5, &target_window);
east = Rast_col_to_easting(2.5, &target_window);
west = Rast_col_to_easting(0.5, &target_window);
V = G_distance(east, north, east, south) * 4;
H = G_distance(east, ns_med, west, ns_med) * 4;
c_angle_min = 90;
Rast_get_row(elevfd, fbuf1, 0, FCELL_TYPE);
Rast_get_row(elevfd, fbuf2, 1, FCELL_TYPE);
for (row = 0; row < nrows; row++) {
G_percent(row, nrows, 2);
Rast_set_null_value(outbuf, ncols, FCELL_TYPE);
/* first and last row */
if (row == 0 || row == nrows - 1) {
Rast_put_row(outfd, outbuf, FCELL_TYPE);
continue;
}
tmpbuf = fbuf0;
fbuf0 = fbuf1;
fbuf1 = fbuf2;
fbuf2 = tmpbuf;
Rast_get_row(elevfd, fbuf2, row + 1, FCELL_TYPE);
north = Rast_row_to_northing(row + 0.5, &target_window);
for (col = 1; col < ncols - 1; col++) {
e1 = fbuf0[col - 1];
if (Rast_is_d_null_value(&e1))
continue;
e2 = fbuf0[col];
if (Rast_is_d_null_value(&e2))
continue;
e3 = fbuf0[col + 1];
if (Rast_is_d_null_value(&e3))
continue;
e4 = fbuf1[col - 1];
if (Rast_is_d_null_value(&e4))
continue;
e5 = fbuf1[col];
if (Rast_is_d_null_value(&e5))
continue;
e6 = fbuf1[col + 1];
if (Rast_is_d_null_value(&e6))
continue;
e7 = fbuf2[col - 1];
if (Rast_is_d_null_value(&e7))
continue;
e8 = fbuf2[col];
if (Rast_is_d_null_value(&e8))
continue;
e9 = fbuf2[col + 1];
if (Rast_is_d_null_value(&e9))
continue;
dx = ((e1 + e4 + e4 + e7) - (e3 + e6 + e6 + e9)) / H;
dy = ((e7 + e8 + e8 + e9) - (e1 + e2 + e2 + e3)) / V;
/* compute topographic parameters */
key = dx * dx + dy * dy;
/* slope in radians */
slope = atan(sqrt(key));
/* aspect in radians */
if (key == 0.)
aspect = 0.;
else if (dx == 0) {
if (dy > 0)
aspect = M_PI / 2;
else
aspect = 1.5 * M_PI;
}
else {
aspect = atan2(dy, dx);
if (aspect <= 0.)
aspect = 2 * M_PI + aspect;
}
/* camera altitude angle in radians */
east = Rast_col_to_easting(col + 0.5, &target_window);
dx = east - XC;
dy = north - YC;
dz = ZC - e5;
c_alt = atan(sqrt(dx * dx + dy * dy) / dz);
/* camera azimuth angle in radians */
c_az = atan(dy / dx);
if (east < XC && north != YC)
c_az += M_PI;
else if (north < YC && east > XC)
c_az += 2 * M_PI;
/* camera angle to real ground */
/* orthogonal to ground: 90 degrees */
/* parallel to ground: 0 degrees */
c_angle = asin(cos(c_alt) * cos(slope) - sin(c_alt) * sin(slope) * cos(c_az - aspect));
outbuf[col] = c_angle * radians_to_degrees;
if (c_angle_min > outbuf[col])
c_angle_min = outbuf[col];
}
Rast_put_row(outfd, outbuf, FCELL_TYPE);
}
G_percent(row, nrows, 2);
Rast_close(elevfd);
Rast_close(outfd);
G_free(fbuf0);
G_free(fbuf1);
G_free(fbuf2);
G_free(outbuf);
type = "raster";
Rast_short_history(name, type, &hist);
Rast_command_history(&hist);
Rast_write_history(name, &hist);
Rast_init_colors(&colr);
if (c_angle_min < 0) {
clr_min = (FCELL)((int)(c_angle_min / 10 - 1)) * 10;
clr_max = 0;
Rast_add_f_color_rule(&clr_min, 0, 0, 0, &clr_max, 0,
0, 0, &colr);
}
clr_min = 0;
clr_max = 10;
Rast_add_f_color_rule(&clr_min, 0, 0, 0, &clr_max, 255,
0, 0, &colr);
clr_min = 10;
clr_max = 40;
Rast_add_f_color_rule(&clr_min, 255, 0, 0, &clr_max, 255,
255, 0, &colr);
clr_min = 40;
clr_max = 90;
Rast_add_f_color_rule(&clr_min, 255, 255, 0, &clr_max, 0,
255, 0, &colr);
Rast_write_colors(name, G_mapset(), &colr);
select_current_env();
return 1;
}
int rectify(char *name, char *mapset, struct cache *ebuffer,
double aver_z, char *result, char *interp_method)
{
struct Cell_head cellhd;
int ncols, nrows;
int row, col;
double row_idx, col_idx;
int infd, outfd;
RASTER_MAP_TYPE map_type;
int cell_size;
void *trast, *tptr;
double n1, e1, z1;
double nx, ex, nx1, ex1, zx1;
struct cache *ibuffer;
select_current_env();
Rast_get_cellhd(name, mapset, &cellhd);
/* open the file to be rectified
* set window to cellhd first to be able to read file exactly
*/
Rast_set_input_window(&cellhd);
infd = Rast_open_old(name, mapset);
map_type = Rast_get_map_type(infd);
cell_size = Rast_cell_size(map_type);
ibuffer = readcell(infd, seg_mb_img, 0);
Rast_close(infd); /* (pmx) 17 april 2000 */
G_message(_("Rectify <%s@%s> (location <%s>)"),
name, mapset, G_location());
select_target_env();
G_set_window(&target_window);
G_message(_("into <%s@%s> (location <%s>) ..."),
result, G_mapset(), G_location());
nrows = target_window.rows;
ncols = target_window.cols;
if (strcmp(interp_method, "nearest") != 0) {
map_type = DCELL_TYPE;
cell_size = Rast_cell_size(map_type);
}
/* open the result file into target window
* this open must be first since we change the window later
* raster maps open for writing are not affected by window changes
* but those open for reading are
*/
outfd = Rast_open_new(result, map_type);
trast = Rast_allocate_output_buf(map_type);
for (row = 0; row < nrows; row++) {
n1 = target_window.north - (row + 0.5) * target_window.ns_res;
G_percent(row, nrows, 2);
Rast_set_null_value(trast, ncols, map_type);
tptr = trast;
for (col = 0; col < ncols; col++) {
DCELL *zp = CPTR(ebuffer, row, col);
e1 = target_window.west + (col + 0.5) * target_window.ew_res;
/* if target cell has no elevation, set to aver_z */
if (Rast_is_d_null_value(zp)) {
G_warning(_("No elevation available at row = %d, col = %d"), row, col);
z1 = aver_z;
}
else
z1 = *zp;
/* target coordinates e1, n1 to photo coordinates ex1, nx1 */
I_ortho_ref(e1, n1, z1, &ex1, &nx1, &zx1, &group.camera_ref,
group.XC, group.YC, group.ZC, group.M);
G_debug(5, "\t\tAfter ortho ref (photo cords): ex = %f \t nx = %f",
ex1, nx1);
/* photo coordinates ex1, nx1 to image coordinates ex, nx */
I_georef(ex1, nx1, &ex, &nx, group.E21, group.N21, 1);
G_debug(5, "\t\tAfter geo ref: ex = %f \t nx = %f", ex, nx);
/* convert to row/column indices of source raster */
row_idx = (cellhd.north - nx) / cellhd.ns_res;
col_idx = (ex - cellhd.west) / cellhd.ew_res;
/* resample data point */
interpolate(ibuffer, tptr, map_type, &row_idx, &col_idx, &cellhd);
tptr = G_incr_void_ptr(tptr, cell_size);
}
Rast_put_row(outfd, trast, map_type);
}
G_percent(1, 1, 1);
Rast_close(outfd); /* (pmx) 17 april 2000 */
G_free(trast);
close(ibuffer->fd);
release_cache(ibuffer);
Rast_get_cellhd(result, G_mapset(), &cellhd);
if (cellhd.proj == 0) { /* x,y imagery */
cellhd.proj = target_window.proj;
cellhd.zone = target_window.zone;
}
if (target_window.proj != cellhd.proj) {
cellhd.proj = target_window.proj;
G_warning(_("Raster map <%s@%s>: projection don't match current settings"),
name, mapset);
}
if (target_window.zone != cellhd.zone) {
cellhd.zone = target_window.zone;
G_warning(_("Raster map <%s@%s>: zone don't match current settings"),
name, mapset);
}
select_current_env();
return 1;
}
static int drawvect(int zoomit, /* -1 = refresh, 0 = new image, 1 = zoom, 2 = warp */
View * zoom_view, double E[], double N[], int trans_order)
{ /* order of transformation if warping vectors */
int stat = 0;
int i;
char name[GNAME_MAX], mapset[GMAPSET_MAX];
struct Cell_head cellhd;
struct line_pnts *Points;
char msg[100], win_name[100];
int t, b, l, r;
int blank = 0;
View *active_view;
int left, top, nrows, ncols;
static int vectclr[VFILES];
/* if refresh screen or overlay & no displayed vector maps return */
if ((zoomit == DO_REFRESH || zoomit == DO_WARP) && !numfiles) {
if (zoomit == DO_REFRESH)
display_points(1);
return 0;
}
/* numfiles stays at 0 until the end of the first vector map init */
if (numfiles >= VFILES) {
G_warning
("Can't display another map; reached maximum number of files");
return 0;
}
select_target_env();
if (zoomit == DO_REFRESH || zoomit == DO_NEW) { /* New Map File or Refresh Screen */
if (zoomit == DO_NEW) { /* zoomit==0, Draw New Map File */
if (!choose_vectfile(name, mapset))
return 0;
strcpy(vect_file[numfiles], name);
strcpy(vect_mapset[numfiles], mapset);
get_vector_color(); /* ask line_color to draw map */
if (!numfiles) { /* first map: SET VECTOR WINDOW BY WIND */
G_get_window(&cellhd);
G_copy(&VIEW_MAP2->cell.head, &cellhd, sizeof(cellhd));
}
else /* not the first map */
G_copy(&cellhd, &VIEW_MAP2->cell.head,
sizeof(VIEW_MAP2->cell.head));
numfiles++;
}
else { /* zoomit=-1 Refresh Screen */
G_copy(&cellhd, &VIEW_MAP2->cell.head,
sizeof(VIEW_MAP2->cell.head));
if (!cellmap_present)
Erase_view(VIEW_MAP2_ZOOM);
VIEW_MAP2_ZOOM->cell.configured = 0;
blank = BLACK;
}
strcpy(win_name, "vect_map");
if (!view2on) {
t = VIEW_MAP2->top;
b = VIEW_MAP2->bottom;
l = VIEW_MAP2->left;
r = VIEW_MAP2->right;
D_new_window(win_name, t, b, l, r);
if (!cellmap_present)
blank = BLACK;
else
blank = 0; /* don't erase viewport */
view2on = 1;
}
active_view = VIEW_MAP2;
}
else { /* zoomit>0 Zoom or Warp */
G_copy(&cellhd, &zoom_view->cell.head, sizeof(zoom_view->cell.head));
if (!(zoom_view == VIEW_MAP1)) { /* target side */
VIEW_MAP2_ZOOM->cell.configured = 0;
strcpy(win_name, "zoom_map");
if (!view2zoomon) {
t = VIEW_MAP2_ZOOM->top;
b = VIEW_MAP2_ZOOM->bottom;
l = VIEW_MAP2_ZOOM->left;
r = VIEW_MAP2_ZOOM->right;
D_new_window(win_name, t, b, l, r);
view2zoomon = 1;
}
active_view = VIEW_MAP2_ZOOM;
blank = BLACK;
}
else {
strcpy(win_name, "warp_map"); /* defined in drawcell routine */
active_view = VIEW_MAP1;
blank = 0; /* don't erase viewport */
}
}
nrows = active_view->nrows;
ncols = active_view->ncols;
left = active_view->left;
top = active_view->top;
D_set_cur_wind(win_name);
R_standard_color(YELLOW);
Outline_box(top, top + nrows - 1, left, left + ncols - 1);
Points = Vect_new_line_struct();
if (zoomit != DO_WARP) {
Curses_clear_window(INFO_WINDOW);
Curses_write_window(INFO_WINDOW, 1, 13, "COORDINATES");
Curses_write_window(INFO_WINDOW, 3, 2, "MAIN WINDOW");
sprintf(msg, "N = %10.2f E = %10.2f", VIEW_MAP2->cell.head.north,
VIEW_MAP2->cell.head.east);
Curses_write_window(INFO_WINDOW, 5, 4, msg);
sprintf(msg, "S = %10.2f W = %10.2f", VIEW_MAP2->cell.head.south,
VIEW_MAP2->cell.head.west);
Curses_write_window(INFO_WINDOW, 6, 4, msg);
Curses_write_window(INFO_WINDOW, 9, 2, "ZOOM WINDOW");
sprintf(msg, "N = %10.2f E = %10.2f",
VIEW_MAP2_ZOOM->cell.head.north,
VIEW_MAP2_ZOOM->cell.head.east);
Curses_write_window(INFO_WINDOW, 11, 4, msg);
sprintf(msg, "S = %10.2f W = %10.2f",
VIEW_MAP2_ZOOM->cell.head.south,
VIEW_MAP2_ZOOM->cell.head.west);
Curses_write_window(INFO_WINDOW, 12, 4, msg);
}
if (zoomit) { /* ie ! DO_NEW */
dsp_setup(blank, &cellhd);
for (i = 0; i < numfiles; i++) {
sprintf(msg, "Displaying %s", vect_file[i]);
Menu_msg(msg);
R_standard_color(vectclr[i]);
if (zoomit != DO_WARP)
stat = plot(vect_file[i], vect_mapset[i], Points);
else
stat = plot_warp(vect_file[i], vect_mapset[i],
Points, E, N, trans_order);
}
}
else { /* ie DO_NEW */
if (numfiles == 1) { /* let first file set window */
G_copy(&VIEW_MAP2->cell.head, &cellhd, sizeof(cellhd));
cellhd.rows = VIEW_MAP2->nrows;
cellhd.cols = VIEW_MAP2->ncols;
cellhd.ns_res = (cellhd.north - cellhd.south) / cellhd.rows;
cellhd.ew_res = (cellhd.east - cellhd.west) / cellhd.cols;
if (cellhd.ns_res > cellhd.ew_res)
cellhd.ew_res = cellhd.ns_res;
else
cellhd.ns_res = cellhd.ew_res;
VIEW_MAP2->cell.ns_res = cellhd.ns_res;
VIEW_MAP2->cell.ew_res = cellhd.ew_res;
G_copy(&VIEW_MAP2->cell.head, &cellhd, sizeof(cellhd));
G_adjust_window_to_box(&cellhd, &VIEW_MAP2->cell.head,
VIEW_MAP2->nrows, VIEW_MAP2->ncols);
if (!cellmap_present) {
Configure_view(VIEW_MAP2, vect_file[numfiles - 1],
vect_mapset[numfiles - 1], cellhd.ns_res,
cellhd.ew_res);
}
Curses_write_window(INFO_WINDOW, 15, 2,
"WHERE CURSOR-> Mid Button");
}
dsp_setup(blank, &cellhd);
R_standard_color(YELLOW);
Outline_box(top, top + nrows - 1, left, left + ncols - 1);
sprintf(msg, "Displaying %s", vect_file[numfiles - 1]);
Menu_msg(msg);
R_standard_color(line_color);
vectclr[numfiles - 1] = line_color;
get_clr_name(vect_color[numfiles - 1], line_color);
stat =
plot(vect_file[numfiles - 1], vect_mapset[numfiles - 1], Points);
}
display_points(1);
R_standard_color(WHITE);
Outline_box(top, top + nrows - 1, left, left + ncols - 1);
Menu_msg("");
Vect_destroy_line_struct(Points);
/* VIEW_MAP2->cell.configured = 1; XXX */
select_current_env();
if (from_screen < 0) {
from_flag = 1;
from_screen = 0;
if (from_keyboard < 0) {
from_keyboard = 0;
from_screen = 1;
}
}
if (numfiles) {
Curses_clear_window(MENU_WINDOW);
Curses_write_window(MENU_WINDOW, 1, 5, "COLOR MAP FILE");
for (i = 0; i < numfiles; i++) {
sprintf(msg, "%7s %s", vect_color[i], vect_file[i]);
Curses_write_window(MENU_WINDOW, i + 3, 3, msg);
}
}
return 0;
}
static int zoom2(int x, int y)
{
int top, bottom, left, right;
int row, col;
struct Cell_head cellhd;
x2 = x;
y2 = y;
/*
* user has completed the zoom window.
* must be in same view as first corner
*/
if (x1 == x2 || y1 == y2)
return 0; /* ignore event */
if (!In_view(pick_view, x2, y2))
return 0;
/*
* ok, erase menu messages
*/
Menu_msg("");
/*
* assign window coordinates to top,bottom,left,right
*/
if (x1 < x2) {
left = x1;
right = x2;
}
else {
left = x2;
right = x1;
}
if (y1 < y2) {
top = y1;
bottom = y2;
}
else {
top = y2;
bottom = y1;
}
/*
* Determine the the zoom window (ie, cellhd)
* must copy the current view cellhd first, to preserve header info
* (such as projection, zone, and other items.)
* compute zoom window northings,eastings, rows, cols, and resolution
*/
G_copy(&cellhd, &pick_view->cell.head, sizeof(cellhd));
/* convert top to northing at top edge of cell
* left to easting at left edge
*/
col = view_to_col(pick_view, left);
row = view_to_row(pick_view, top);
cellhd.north = row_to_northing(&pick_view->cell.head, row, 0.0);
cellhd.west = col_to_easting(&pick_view->cell.head, col, 0.0);
/* convert bottom to northing at bottom edge of cell
* right to easting at right edge
*/
col = view_to_col(pick_view, right);
row = view_to_row(pick_view, bottom);
cellhd.south = row_to_northing(&pick_view->cell.head, row, 1.0);
cellhd.east = col_to_easting(&pick_view->cell.head, col, 1.0);
cellhd.rows = bottom - top + 1;
cellhd.cols = right - left + 1;
cellhd.ns_res = (cellhd.north - cellhd.south) / cellhd.rows;
cellhd.ew_res = (cellhd.east - cellhd.west) / cellhd.cols;
/*
* Outline the zoom window on the main map
* Turn previous one to grey.
*/
if (zoom_view->cell.configured) {
R_standard_color(GREY);
Outline_cellhd(main_view, &zoom_view->cell.head);
}
R_standard_color(RED);
Outline_cellhd(main_view, &cellhd);
/*
* zoom
*/
if (target_flag)
select_target_env();
G_adjust_window_to_box(&cellhd, &zoom_view->cell.head, zoom_view->nrows,
zoom_view->ncols);
Configure_view(zoom_view, pick_view->cell.name, pick_view->cell.mapset,
pick_view->cell.ns_res, pick_view->cell.ew_res);
drawcell(zoom_view);
select_current_env();
display_ref_points(1);
return 1; /* pop back */
}
int main(int argc, char *argv[])
{
struct GModule *module;
struct Option *group_opt;
char location[GMAPSET_MAX];
char mapset[GMAPSET_MAX];
char group[GNAME_MAX];
char buf[100];
int stat;
/* must run in a term window */
G_putenv("GRASS_UI_TERM", "1");
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("imagery, orthorectify");
module->description =
_("Interactively select or modify the target elevation model.");
group_opt = G_define_standard_option(G_OPT_I_GROUP);
group_opt->description =
_("Name of imagery group for ortho-rectification");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
elev_layer = (char *)G_malloc(GNAME_MAX * sizeof(char));
mapset_elev = (char *)G_malloc(GMAPSET_MAX * sizeof(char));
tl = (char *)G_malloc(80 * sizeof(char));
math_exp = (char *)G_malloc(80 * sizeof(char));
units = (char *)G_malloc(80 * sizeof(char));
nd = (char *)G_malloc(80 * sizeof(char));
*elev_layer = 0;
*mapset_elev = 0;
*tl = 0;
*math_exp = 0;
*units = 0;
*nd = 0;
strcpy(group, group_opt->answer);
G_suppress_warnings(1);
if (!I_get_target(group, location, mapset)) {
sprintf(buf, _("Target information for group [%s] missing\n"), group);
goto error;
}
G_suppress_warnings(0);
sprintf(buf, "%s/%s", G_gisdbase(), location);
if (access(buf, 0) != 0) {
sprintf(buf, _("Target location [%s] not found\n"), location);
goto error;
}
I_get_group_elev(group, elev_layer, mapset_elev, tl, math_exp, units, nd);
G__create_alt_env();
G__setenv("LOCATION_NAME", location);
stat = G__mapset_permissions(mapset);
if (stat > 0) {
G__setenv("MAPSET", mapset);
G__create_alt_search_path();
G__switch_env();
G__switch_search_path();
which_env = 0;
/* get elevation layer raster map in target location */
select_target_env();
ask_elev(group, location, mapset);
/* select current location */
select_current_env();
I_put_group_elev(group, elev_layer, mapset_elev, tl,
math_exp, units, nd);
exit(EXIT_SUCCESS);
}
sprintf(buf, _("Mapset [%s] in target location [%s] - "), mapset, location);
strcat(buf, stat == 0 ? _("permission denied\n") : _("not found\n"));
error:
strcat(buf, _("Please select a target for group"));
strcat(buf, group);
G_suppress_warnings(0);
G_fatal_error(buf);
}
int main(int argc, char *argv[])
{
char group[INAME_LEN], extension[INAME_LEN];
int order; /* ADDED WITH CRS MODIFICATIONS */
char *ipolname; /* name of interpolation method */
int method;
int n, i, m, k = 0;
int got_file = 0, target_overwrite = 0;
char *overstr;
struct Cell_head cellhd;
struct Option *grp, /* imagery group */
*val, /* transformation order */
*ifile, /* input files */
*ext, /* extension */
*tres, /* target resolution */
*mem, /* amount of memory for cache */
*interpol; /* interpolation method:
nearest neighbor, bilinear, cubic */
struct Flag *c, *a;
struct GModule *module;
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("imagery, rectify");
module->description =
_("Rectifies an image by computing a coordinate "
"transformation for each pixel in the image based on the "
"control points.");
grp = G_define_standard_option(G_OPT_I_GROUP);
ifile = G_define_standard_option(G_OPT_R_INPUTS);
ifile->required = NO;
ext = G_define_option();
ext->key = "extension";
ext->type = TYPE_STRING;
ext->required = YES;
ext->multiple = NO;
ext->description = _("Output raster map(s) suffix");
val = G_define_option();
val->key = "order";
val->type = TYPE_INTEGER;
val->required = YES;
val->description = _("Rectification polynom order (1-3)");
tres = G_define_option();
tres->key = "res";
tres->type = TYPE_DOUBLE;
tres->required = NO;
tres->description = _("Target resolution (ignored if -c flag used)");
mem = G_define_option();
mem->key = "memory";
mem->type = TYPE_DOUBLE;
mem->key_desc = "memory in MB";
mem->required = NO;
mem->answer = "300";
mem->description = _("Amount of memory to use in MB");
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");
c = G_define_flag();
c->key = 'c';
c->description =
_("Use current region settings in target location (def.=calculate smallest area)");
a = G_define_flag();
a->key = 'a';
a->description = _("Rectify all raster maps in group");
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;
G_strip(grp->answer);
strcpy(group, grp->answer);
strcpy(extension, ext->answer);
order = atoi(val->answer);
seg_mb = NULL;
if (mem->answer) {
if (atoi(mem->answer) > 0)
seg_mb = mem->answer;
}
if (!ifile->answers)
a->answer = 1; /* force all */
/* Find out how many files on command line */
if (!a->answer) {
for (m = 0; ifile->answers[m]; m++) {
k = m;
}
k++;
}
if (order < 1 || order > MAXORDER)
G_fatal_error(_("Invalid order (%d); please enter 1 to %d"), order,
MAXORDER);
/* determine the number of files in this group */
if (I_get_group_ref(group, &ref) <= 0)
G_fatal_error(_("Group <%s> does not exist"), grp->answer);
if (ref.nfiles <= 0) {
G_important_message(_("Group <%s> contains no raster maps; run i.group"),
grp->answer);
exit(EXIT_SUCCESS);
}
ref_list = (int *)G_malloc(ref.nfiles * sizeof(int));
if (a->answer) {
for (n = 0; n < ref.nfiles; n++) {
ref_list[n] = 1;
}
}
else {
char xname[GNAME_MAX], xmapset[GMAPSET_MAX], *name, *mapset;
for (n = 0; n < ref.nfiles; n++)
ref_list[n] = 0;
for (m = 0; m < k; m++) {
got_file = 0;
if (G__name_is_fully_qualified(ifile->answers[m], xname, xmapset)) {
name = xname;
mapset = xmapset;
}
else {
name = ifile->answers[m];
mapset = NULL;
}
got_file = 0;
for (n = 0; n < ref.nfiles; n++) {
if (mapset) {
if (strcmp(name, ref.file[n].name) == 0 &&
strcmp(mapset, ref.file[n].mapset) == 0) {
got_file = 1;
ref_list[n] = 1;
break;
}
}
else {
if (strcmp(name, ref.file[n].name) == 0) {
got_file = 1;
ref_list[n] = 1;
break;
}
}
}
if (got_file == 0)
err_exit(ifile->answers[m], group);
}
}
/* read the control points for the group */
get_control_points(group, order);
/* get the target */
get_target(group);
/* Check the GRASS_OVERWRITE environment variable */
if ((overstr = getenv("GRASS_OVERWRITE"))) /* OK ? */
target_overwrite = atoi(overstr);
if (!target_overwrite) {
/* check if output exists in target location/mapset */
char result[GNAME_MAX];
select_target_env();
for (i = 0; i < ref.nfiles; i++) {
if (!ref_list[i])
continue;
strcpy(result, ref.file[i].name);
strcat(result, extension);
if (G_legal_filename(result) < 0)
G_fatal_error(_("Extension <%s> is illegal"), extension);
if (G_find_cell(result, G_mapset())) {
G_warning(_("The following raster map already exists in"));
G_warning(_("target LOCATION %s, MAPSET %s:"),
G_location(), G_mapset());
G_warning("<%s>", result);
G_fatal_error(_("Orthorectification cancelled."));
}
}
select_current_env();
}
else
G_debug(1, "Overwriting OK");
/* do not use current region in target location */
if (!c->answer) {
double res = -1;
if (tres->answer) {
if (!((res = atof(tres->answer)) > 0))
G_warning(_("Target resolution must be > 0, ignored"));
}
/* Calculate smallest region */
if (a->answer) {
if (G_get_cellhd(ref.file[0].name, ref.file[0].mapset, &cellhd) <
0)
G_fatal_error(_("Unable to read header of raster map <%s>"),
ref.file[0].name);
}
else {
if (G_get_cellhd(ifile->answers[0], ref.file[0].mapset, &cellhd) <
0)
G_fatal_error(_("Unable to read header of raster map <%s>"),
ifile->answers[0]);
}
georef_window(&cellhd, &target_window, order, res);
}
G_verbose_message(_("Using region: N=%f S=%f, E=%f W=%f"), target_window.north,
target_window.south, target_window.east, target_window.west);
exec_rectify(order, extension, interpol->answer);
G_done_msg(" ");
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
char name[GNAME_MAX], mapset[GMAPSET_MAX], xmapset[GMAPSET_MAX];
struct Cell_head cellhd;
struct GModule *module;
struct Option *grp;
/* must run in a term window */
G_putenv("GRASS_UI_TERM", "1");
G_gisinit(argv[0]);
module = G_define_module();
G_add_keyword(_("imagery"));
G_add_keyword(_("geometry"));
module->description =
_("Mark ground control points on image to be rectified.");
grp = G_define_option();
grp->key = "group";
grp->type = TYPE_STRING;
grp->required = YES;
grp->gisprompt = "old,group,group";
grp->description = _("Name of imagery group to be registered");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
Rast_suppress_masking(); /* need to do this for target location */
interrupt_char = G_intr_char();
tempfile1 = G_tempfile();
tempfile2 = G_tempfile();
cell_list = G_tempfile();
vect_list = G_tempfile();
group_list = G_tempfile();
digit_points = G_tempfile();
digit_results = G_tempfile();
if (R_open_driver() != 0)
G_fatal_error(_("No graphics device selected"));
/* parse group name */
/* only enforce local-mapset-only due to I_get_group_ref() not liking "@mapset" */
if (G_name_is_fully_qualified(grp->answer, group.name, xmapset)) {
if (0 != strcmp(G_mapset(), xmapset))
G_fatal_error(_("[%s] Only local groups may be used"),
grp->answer);
}
else {
strncpy(group.name, grp->answer, GNAME_MAX - 1);
group.name[GNAME_MAX - 1] = '\0'; /* strncpy() doesn't null terminate on overflow */
}
if (!I_get_group_ref(group.name, &group.ref))
G_fatal_error(_("Group [%s] contains no maps, run i.group"),
group.name);
if (group.ref.nfiles <= 0)
G_fatal_error(_("Group [%s] contains no maps, run i.group"),
group.name);
/* write group files to group list file */
prepare_group_list();
/* get target info and environment */
get_target();
find_target_files();
/* read group control points, if any */
G_suppress_warnings(1);
if (!I_get_control_points(group.name, &group.points))
group.points.count = 0;
G_suppress_warnings(0);
/* determine transformation equation */
Compute_equation();
signal(SIGINT, SIG_IGN);
/* signal (SIGQUIT, SIG_IGN); */
Init_graphics();
display_title(VIEW_MAP1);
select_target_env();
display_title(VIEW_MAP2);
select_current_env();
Begin_curses();
G_set_error_routine(error);
/*
#ifdef SIGTSTP
signal (SIGTSTP, SIG_IGN);
#endif
*/
/* ask user for group file to be displayed */
do {
if (!choose_groupfile(name, mapset))
quit(0);
/* display this file in "map1" */
}
while (!G_find_raster2(name, mapset));
Rast_get_cellhd(name, mapset, &cellhd);
G_adjust_window_to_box(&cellhd, &VIEW_MAP1->cell.head, VIEW_MAP1->nrows,
VIEW_MAP1->ncols);
Configure_view(VIEW_MAP1, name, mapset, cellhd.ns_res, cellhd.ew_res);
drawcell(VIEW_MAP1);
display_points(1);
Curses_clear_window(PROMPT_WINDOW);
/* determine initial input method. */
setup_digitizer();
if (use_digitizer) {
from_digitizer = 1;
from_keyboard = 0;
from_flag = 1;
}
/* go do the work */
driver();
quit(0);
}
int exec_rectify(char *extension, char *interp_method, char *angle_map)
{
char *name;
char *mapset;
char *result;
char *type = "raster";
int n;
struct Colors colr;
struct Categories cats;
struct History hist;
int colr_ok, cats_ok;
long start_time, rectify_time;
double aver_z;
int elevfd;
struct cache *ebuffer;
G_debug(1, "Open elevation raster: ");
/* open elevation raster */
select_target_env();
G_set_window(&target_window);
G_debug(1, "target window: rs=%d cs=%d n=%f s=%f w=%f e=%f\n",
target_window.rows, target_window.cols, target_window.north,
target_window.south, target_window.west, target_window.east);
elevfd = Rast_open_old(elev_name, elev_mapset);
if (elevfd < 0) {
G_fatal_error(_("Could not open elevation raster"));
return 1;
}
ebuffer = readcell(elevfd, seg_mb_elev, 1);
select_target_env();
Rast_close(elevfd);
/* get an average elevation of the control points */
/* this is used only if target cells have no elevation */
get_aver_elev(&group.control_points, &aver_z);
G_message("-----------------------------------------------");
/* rectify each file */
for (n = 0; n < group.group_ref.nfiles; n++) {
if (!ref_list[n])
continue;
name = group.group_ref.file[n].name;
mapset = group.group_ref.file[n].mapset;
result =
G_malloc(strlen(group.group_ref.file[n].name) + strlen(extension) + 1);
strcpy(result, group.group_ref.file[n].name);
strcat(result, extension);
G_debug(2, "ORTHO RECTIFYING:");
G_debug(2, "NAME %s", name);
G_debug(2, "MAPSET %s", mapset);
G_debug(2, "RESULT %s", result);
G_debug(2, "select_current_env...");
select_current_env();
cats_ok = Rast_read_cats(name, mapset, &cats) >= 0;
colr_ok = Rast_read_colors(name, mapset, &colr) > 0;
/* Initialze History */
if (Rast_read_history(name, mapset, &hist) < 0)
Rast_short_history(result, type, &hist);
G_debug(2, "reading was fine...");
time(&start_time);
G_debug(2, "Starting the rectification...");
if (rectify(name, mapset, ebuffer, aver_z, result, interp_method)) {
G_debug(2, "Done. Writing results...");
select_target_env();
if (cats_ok) {
Rast_write_cats(result, &cats);
Rast_free_cats(&cats);
}
if (colr_ok) {
Rast_write_colors(result, G_mapset(), &colr);
Rast_free_colors(&colr);
}
/* Write out History */
Rast_command_history(&hist);
Rast_write_history(result, &hist);
select_current_env();
time(&rectify_time);
report(rectify_time - start_time, 1);
}
else
report((long)0, 0);
G_free(result);
}
close(ebuffer->fd);
release_cache(ebuffer);
if (angle_map) {
camera_angle(angle_map);
}
return 0;
}
struct cache *readcell(int fdi, int size, int target_env)
{
DCELL *tmpbuf;
struct cache *c;
int nrows;
int ncols;
int row;
char *filename;
int nx, ny;
int nblocks;
int i;
if (target_env)
select_target_env();
else
select_current_env();
G_srand48(0);
nrows = Rast_window_rows();
ncols = Rast_window_cols();
/* Temporary file must be created in the same location/mapset
* where the module was called */
if (target_env)
select_current_env();
ny = (nrows + BDIM - 1) / BDIM;
nx = (ncols + BDIM - 1) / BDIM;
if (size > 0)
nblocks = size * ((1 << 20) / sizeof(block));
else
nblocks = (nx + ny) * 2; /* guess */
if (nblocks > nx * ny)
nblocks = nx * ny;
c = G_malloc(sizeof(struct cache));
c->stride = nx;
c->nblocks = nblocks;
c->grid = (block **) G_calloc(nx * ny, sizeof(block *));
c->blocks = (block *) G_malloc(nblocks * sizeof(block));
c->refs = (int *)G_malloc(nblocks * sizeof(int));
if (nblocks < nx * ny) {
filename = G_tempfile();
c->fd = open(filename, O_RDWR | O_CREAT | O_EXCL, 0600);
if (c->fd < 0)
G_fatal_error(_("Unable to open temporary file"));
remove(filename);
}
else
c->fd = -1;
G_debug(1, "%d of %d blocks in memory", nblocks, nx * ny);
G_important_message(_("Allocating memory and reading input map..."));
G_percent(0, nrows, 5);
for (i = 0; i < c->nblocks; i++)
c->refs[i] = -1;
tmpbuf = (DCELL *) G_malloc(nx * sizeof(block));
if (target_env)
select_target_env();
for (row = 0; row < nrows; row += BDIM) {
int x, y;
for (y = 0; y < BDIM; y++) {
G_percent(row + y, nrows, 5);
if (row + y >= nrows)
break;
Rast_get_d_row(fdi, &tmpbuf[y * nx * BDIM], row + y);
}
for (x = 0; x < nx; x++)
for (y = 0; y < BDIM; y++)
if (c->fd >= 0) {
if (write
(c->fd, &tmpbuf[(y * nx + x) * BDIM],
BDIM * sizeof(DCELL)) < 0)
G_fatal_error(_("Error writing segment file"));
}
else
memcpy(&c->blocks[BKIDX(c, HI(row), x)][LO(y)][0],
&tmpbuf[(y * nx + x) * BDIM],
BDIM * sizeof(DCELL));
}
G_free(tmpbuf);
if (c->fd < 0)
for (i = 0; i < c->nblocks; i++) {
c->grid[i] = &c->blocks[i];
c->refs[i] = i;
}
if (target_env)
select_current_env();
return c;
}
int main(int argc, char *argv[])
{
char mapset[GMAPSET_MAX];
char name[GNAME_MAX];
char *camera;
struct GModule *module;
struct Option *group_opt, *map_opt, *target_map_opt;
struct Cell_head cellhd;
int ok;
int nfiles;
/* must run in a term window */
G_putenv("GRASS_UI_TERM", "1");
G_gisinit(argv[0]);
module = G_define_module();
module->keywords = _("imagery, orthorectify");
module->description = _("Creates control points on an image "
"to be ortho-rectified.");
group_opt = G_define_option();
group_opt->key = "group";
group_opt->type = TYPE_STRING;
group_opt->required = YES;
group_opt->multiple = NO;
group_opt->description = _("Name of imagery group");
map_opt = G_define_standard_option(G_OPT_R_MAP);
map_opt->required = NO;
map_opt->description = _("Name of image to be rectified which will "
"be initially drawn on screen");
target_map_opt = G_define_standard_option(G_OPT_R_MAP);
target_map_opt->key = "target";
target_map_opt->required = NO;
target_map_opt->description = _("Name of a map from target mapset which "
"will be initially drawn on screen");
if (G_parser(argc, argv))
exit(EXIT_FAILURE);
G_suppress_masking(); /* need to do this for target location */
camera = (char *)G_malloc(40 * sizeof(char));
strcpy(name, group_opt->answer);
interrupt_char = G_intr_char();
tempfile1 = G_tempfile();
tempfile2 = G_tempfile();
tempfile_dot = G_tempfile();
tempfile_dot2 = G_tempfile();
tempfile_win = G_tempfile();
tempfile_win2 = G_tempfile();
cell_list = G_tempfile();
vect_list = G_tempfile();
group_list = G_tempfile();
digit_points = G_tempfile();
if (R_open_driver() != 0)
G_fatal_error(_("No graphics device selected"));
/* get group ref */
strcpy(group.name, name);
if (!I_find_group(group.name))
G_fatal_error(_("Group [%s] not found"), group.name);
/* get the group ref */
I_get_group_ref(group.name, &group.group_ref);
nfiles = group.group_ref.nfiles;
/* write block files to block list file */
prepare_group_list();
/** look for camera info for this group**/
G_suppress_warnings(1);
if (!I_get_group_camera(group.name, camera))
G_fatal_error(_("No camera reference file selected for group [%s]"),
group.name);
if (!I_get_cam_info(camera, &group.camera_ref))
G_fatal_error(_("Bad format in camera file for group [%s]"),
group.name);
G_suppress_warnings(0);
/* get initial camera exposure station, if any */
if (!(ok = I_find_initial(group.name)))
G_warning(_("No initial camera exposure station for group [%s]"),
group.name);
if (ok && (!I_get_init_info(group.name, &group.camera_exp)) )
G_warning(_("Bad format in initial camera exposure station for group [%s]"),
group.name);
/* get target info and environment */
G_suppress_warnings(1);
get_target();
find_target_files();
G_suppress_warnings(0);
/* read group reference points, if any */
G_suppress_warnings(1);
if (!I_get_ref_points(group.name, &group.photo_points)) {
G_suppress_warnings(0);
if (group.photo_points.count == 0)
G_fatal_error(_("No photo points for group [%s]"), group.name);
else if (group.ref_equation_stat == 0)
G_fatal_error(_("Poorly placed photo points for group [%s]"),
group.name);
}
G_suppress_warnings(0);
/* determine transformation equation */
Compute_ref_equation();
/* read group control points, format: image x,y,cfl; target E,N,Z */
G_suppress_warnings(1);
if (!I_get_con_points(group.name, &group.control_points))
group.control_points.count = 0;
G_suppress_warnings(0);
/* compute image coordinates of photo control points */
/********
I_convert_con_points (group.name, &group.control_points,
&group.control_points, group.E12, group.N12);
********/
/* determine transformation equation */
G_message(_("Computing equations ..."));
if (group.control_points.count > 0)
Compute_ortho_equation();
/* signal (SIGINT, SIG_IGN); */
/* signal (SIGQUIT, SIG_IGN); */
select_current_env();
Init_graphics();
display_title(VIEW_MAP1);
select_target_env();
display_title(VIEW_MAP2);
select_current_env();
Begin_curses();
G_set_error_routine(error);
/*
#ifdef SIGTSTP
signal (SIGTSTP, SIG_IGN);
#endif
*/
/* Set image to be rectified */
if (map_opt->answer) {
char *ms;
ms = G_find_cell(map_opt->answer, "");
if (ms == NULL) {
G_fatal_error(_("Raster map <%s> not found"), map_opt->answer);
}
strcpy(name, map_opt->answer);
strcpy(mapset, ms);
if (G_get_cellhd(name, mapset, &cellhd) < 0) {
G_fatal_error(_("Unable to read raster header of <%s>"), map_opt->answer);
}
}
else {
/* ask user for group file to be displayed */
do {
if (!choose_groupfile(name, mapset))
quit(EXIT_SUCCESS);
/* display this file in "map1" */
} while (G_get_cellhd(name, mapset, &cellhd) < 0);
}
G_adjust_window_to_box(&cellhd, &VIEW_MAP1->cell.head, VIEW_MAP1->nrows,
VIEW_MAP1->ncols);
Configure_view(VIEW_MAP1, name, mapset, cellhd.ns_res, cellhd.ew_res);
drawcell(VIEW_MAP1);
/* Set target map if specified */
if (target_map_opt->answer) {
char *ms;
select_target_env();
ms = G_find_cell(target_map_opt->answer, "");
if (ms == NULL) {
G_fatal_error(_("Raster map <%s> not found"),
target_map_opt->answer);
}
strcpy(name, target_map_opt->answer);
strcpy(mapset, ms);
if (G_get_cellhd(name, mapset, &cellhd) < 0) {
G_fatal_error(_("Unable to read raster header of <%s>"),
target_map_opt->answer);
}
G_adjust_window_to_box(&cellhd, &VIEW_MAP2->cell.head,
VIEW_MAP2->nrows, VIEW_MAP2->ncols);
Configure_view(VIEW_MAP2, name, mapset, cellhd.ns_res, cellhd.ew_res);
drawcell(VIEW_MAP2);
from_flag = 1;
from_keyboard = 0;
from_screen = 1;
}
display_conz_points(1);
Curses_clear_window(PROMPT_WINDOW);
/* determine initial input method. */
setup_digitizer();
if (use_digitizer) {
from_digitizer = 1;
from_keyboard = 0;
from_flag = 1;
}
/* go do the work */
driver();
quit(EXIT_SUCCESS);
}
