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shputils.c
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shputils.c
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/******************************************************************************
* $Id: shputils.c,v 1.11 2016-12-05 12:44:06 erouault Exp $
*
* Project: Shapelib
* Purpose:
* Altered "shpdump" and "dbfdump" to allow two files to be appended.
* Other Functions:
* Selecting from the DBF before the write occurs.
* Change the UNITS between Feet and Meters and Shift X,Y.
* Clip and Erase boundary. The program only passes thru the
* data once.
*
* Bill Miller North Carolina - Department of Transporation
* Feb. 1997 -- bmiller@dot.state.nc.us
* There was not a lot of time to debug hidden problems;
* And the code is not very well organized or documented.
* The clip/erase function was not well tested.
* Oct. 2000 -- bmiller@dot.state.nc.us
* Fixed the problem when select is using numbers
* larger than short integer. It now reads long integer.
* NOTE: DBF files created using windows NT will read as a string with
* a length of 381 characters. This is a bug in "dbfopen".
*
*
* Author: Bill Miller (bmiller@dot.state.nc.us)
*
******************************************************************************
* Copyright (c) 1999, Frank Warmerdam
*
* This software is available under the following "MIT Style" license,
* or at the option of the licensee under the LGPL (see COPYING). This
* option is discussed in more detail in shapelib.html.
*
* --
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
******************************************************************************
*
* $Log: shputils.c,v $
* Revision 1.11 2016-12-05 12:44:06 erouault
* * Major overhaul of Makefile build system to use autoconf/automake.
*
* * Warning fixes in contrib/
*
* Revision 1.10 2007-12-13 19:59:23 fwarmerdam
* reindent code, avoid some warnings.
*
* Revision 1.9 2004/01/14 14:56:00 fwarmerdam
* Some cleanlyness improvements.
*
* Revision 1.8 2004/01/14 14:40:22 fwarmerdam
* Fixed exit() call to include code.
*
* Revision 1.7 2003/02/25 17:20:22 warmerda
* Set psCShape to NULL after SHPDestroyObject() to avoid multi-frees of
* the same memory ... as submitted by Fred Fox.
*
* Revision 1.6 2001/08/28 13:57:14 warmerda
* fixed DBFAddField return value check
*
* Revision 1.5 2000/11/02 13:52:48 warmerda
* major upgrade from Bill Miller
*
* Revision 1.4 1999/11/05 14:12:05 warmerda
* updated license terms
*
* Revision 1.3 1998/12/03 15:47:39 warmerda
* Did a bunch of rewriting to make it work with the V1.2 API.
*
* Revision 1.2 1998/06/18 01:19:49 warmerda
* Made C++ compilable.
*
* Revision 1.1 1997/05/27 20:40:27 warmerda
* Initial revision
*/
#include "shapefil.h"
#include "string.h"
#include <stdlib.h>
SHP_CVSID("$Id: shputils.c,v 1.11 2016-12-05 12:44:06 erouault Exp $")
#ifndef FALSE
# define FALSE 0
# define TRUE 1
#endif
char infile[80], outfile[80], temp[400];
/* Variables for shape files */
SHPHandle hSHP;
SHPHandle hSHPappend;
int nShapeType, nEntities, iPart;
int nShapeTypeAppend, nEntitiesAppend;
SHPObject *psCShape;
double adfBoundsMin[4], adfBoundsMax[4];
/* Variables for DBF files */
DBFHandle hDBF;
DBFHandle hDBFappend;
DBFFieldType iType;
DBFFieldType jType;
char iszTitle[12];
char jszTitle[12];
int *pt;
char iszFormat[32], iszField[1024];
char jszFormat[32], jszField[1024];
int i, ti, iWidth, iDecimals, iRecord;
int j, tj, jWidth, jDecimals, jRecord;
int clip_boundary();
double findunit(char *unit);
void openfiles(void);
void setext(char *pt, char *ext);
int strncasecmp2(char *s1, char *s2, int n);
void mergefields(void);
void findselect(void);
void showitems(void);
int selectrec();
void check_theme_bnd();
int clip_boundary();
void error();
/* -------------------------------------------------------------------- */
/* Variables for the DESCRIBE function */
/* -------------------------------------------------------------------- */
int ilist = FALSE, iall = FALSE;
/* -------------------------------------------------------------------- */
/* Variables for the SELECT function */
/* -------------------------------------------------------------------- */
int found = FALSE, newdbf = FALSE;
char selectitem[40], *cpt;
long int selectvalues[150], selcount=0;
int iselect = FALSE, iselectitem = -1;
int iunselect = FALSE;
/* -------------------------------------------------------------------- */
/* Variables for the CLIP and ERASE functions */
/* -------------------------------------------------------------------- */
double cxmin, cymin, cxmax, cymax;
int iclip = FALSE, ierase = FALSE;
int itouch = FALSE, iinside = FALSE, icut = FALSE;
int ibound = FALSE, ipoly = FALSE;
char clipfile[80];
/* -------------------------------------------------------------------- */
/* Variables for the FACTOR function */
/* -------------------------------------------------------------------- */
double infactor,outfactor,factor = 0; /* NO FACTOR */
int iunit = FALSE;
int ifactor = FALSE;
/* -------------------------------------------------------------------- */
/* Variables for the SHIFT function */
/* -------------------------------------------------------------------- */
double xshift = 0, yshift = 0; /* NO SHIFT */
int main( int argc, char ** argv )
{
/* -------------------------------------------------------------------- */
/* Check command line usage. */
/* -------------------------------------------------------------------- */
if( argc < 2 ) error();
strcpy(infile, argv[1]);
if (argc > 2) {
strcpy(outfile,argv[2]);
if (strncasecmp2(outfile, "LIST",0) == 0) { ilist = TRUE; }
if (strncasecmp2(outfile, "ALL",0) == 0) { iall = TRUE; }
}
if (ilist || iall || argc == 2 ) {
setext(infile, "shp");
printf("DESCRIBE: %s\n",infile);
strcpy(outfile,"");
}
/* -------------------------------------------------------------------- */
/* Look for other functions on the command line. (SELECT, UNIT) */
/* -------------------------------------------------------------------- */
for (i = 3; i < argc; i++)
{
if ((strncasecmp2(argv[i], "SEL",3) == 0) ||
(strncasecmp2(argv[i], "UNSEL",5) == 0))
{
if (strncasecmp2(argv[i], "UNSEL",5) == 0) iunselect=TRUE;
i++;
if (i >= argc) error();
strcpy(selectitem,argv[i]);
i++;
if (i >= argc) error();
selcount=0;
strcpy(temp,argv[i]);
cpt=temp;
tj = atoi(cpt);
ti = 0;
while (tj>0) {
selectvalues[selcount] = tj;
while( *cpt >= '0' && *cpt <= '9')
cpt++;
while( *cpt > '\0' && (*cpt < '0' || *cpt > '9') )
cpt++;
tj=atoi(cpt);
selcount++;
}
iselect=TRUE;
} /*** End SEL & UNSEL ***/
else
if ((strncasecmp2(argv[i], "CLIP",4) == 0) ||
(strncasecmp2(argv[i], "ERASE",5) == 0))
{
if (strncasecmp2(argv[i], "ERASE",5) == 0) ierase=TRUE;
i++;
if (i >= argc) error();
strcpy(clipfile,argv[i]);
sscanf(argv[i],"%lf",&cxmin);
i++;
if (i >= argc) error();
if (strncasecmp2(argv[i], "BOUND",5) == 0) {
setext(clipfile, "shp");
hSHP = SHPOpen( clipfile, "rb" );
if( hSHP == NULL )
{
printf( "ERROR: Unable to open the clip shape file:%s\n", clipfile );
exit( 1 );
}
SHPGetInfo( hSHPappend, NULL, NULL,
adfBoundsMin, adfBoundsMax );
cxmin = adfBoundsMin[0];
cymin = adfBoundsMin[1];
cxmax = adfBoundsMax[0];
cymax = adfBoundsMax[1];
printf("Theme Clip Boundary: (%lf,%lf) - (%lf,%lf)\n",
cxmin, cymin, cxmax, cymax);
ibound=TRUE;
} else { /*** xmin,ymin,xmax,ymax ***/
sscanf(argv[i],"%lf",&cymin);
i++;
if (i >= argc) error();
sscanf(argv[i],"%lf",&cxmax);
i++;
if (i >= argc) error();
sscanf(argv[i],"%lf",&cymax);
printf("Clip Box: (%lf,%lf) - (%lf,%lf)\n",cxmin, cymin, cxmax, cymax);
}
i++;
if (i >= argc) error();
if (strncasecmp2(argv[i], "CUT",3) == 0) icut=TRUE;
else if (strncasecmp2(argv[i], "TOUCH",5) == 0) itouch=TRUE;
else if (strncasecmp2(argv[i], "INSIDE",6) == 0) iinside=TRUE;
else error();
iclip=TRUE;
} /*** End CLIP & ERASE ***/
else if (strncasecmp2(argv[i], "FACTOR",0) == 0)
{
i++;
if (i >= argc) error();
infactor=findunit(argv[i]);
if (infactor == 0) error();
iunit=TRUE;
i++;
if (i >= argc) error();
outfactor=findunit(argv[i]);
if (outfactor == 0)
{
sscanf(argv[i],"%lf",&factor);
if (factor == 0) error();
}
if (factor == 0)
{
if (infactor ==0)
{ puts("ERROR: Input unit must be defined before output unit"); exit(1); }
factor=infactor/outfactor;
}
printf("Output file coordinate values will be factored by %lg\n",factor);
ifactor=(factor != 1); /* True if a valid factor */
} /*** End FACTOR ***/
else if (strncasecmp2(argv[i],"SHIFT",5) == 0)
{
i++;
if (i >= argc) error();
sscanf(argv[i],"%lf",&xshift);
i++;
if (i >= argc) error();
sscanf(argv[i],"%lf",&yshift);
iunit=TRUE;
printf("X Shift: %lg Y Shift: %lg\n",xshift,yshift);
} /*** End SHIFT ***/
else {
printf("ERROR: Unknown function %s\n",argv[i]); error();
}
}
/* -------------------------------------------------------------------- */
/* If there is no data in this file let the user know. */
/* -------------------------------------------------------------------- */
openfiles(); /* Open the infile and the outfile for shape and dbf. */
if( DBFGetFieldCount(hDBF) == 0 )
{
puts( "There are no fields in this table!" );
exit( 1 );
}
/* -------------------------------------------------------------------- */
/* Print out the file bounds. */
/* -------------------------------------------------------------------- */
iRecord = DBFGetRecordCount( hDBF );
SHPGetInfo( hSHP, NULL, NULL, adfBoundsMin, adfBoundsMax );
printf( "Input Bounds: (%lg,%lg) - (%lg,%lg) Entities: %d DBF: %d\n",
adfBoundsMin[0], adfBoundsMin[1],
adfBoundsMax[0], adfBoundsMax[1],
nEntities, iRecord );
if (strcmp(outfile,"") == 0) /* Describe the shapefile; No other functions */
{
ti = DBFGetFieldCount( hDBF );
showitems();
exit(0);
}
if (iclip) check_theme_bnd();
jRecord = DBFGetRecordCount( hDBFappend );
SHPGetInfo( hSHPappend, NULL, NULL, adfBoundsMin, adfBoundsMax );
if (nEntitiesAppend == 0)
puts("New Output File\n");
else
printf( "Append Bounds: (%lg,%lg)-(%lg,%lg) Entities: %d DBF: %d\n",
adfBoundsMin[0], adfBoundsMin[1],
adfBoundsMax[0], adfBoundsMax[1],
nEntitiesAppend, jRecord );
/* -------------------------------------------------------------------- */
/* Find matching fields in the append file or add new items. */
/* -------------------------------------------------------------------- */
mergefields();
/* -------------------------------------------------------------------- */
/* Find selection field if needed. */
/* -------------------------------------------------------------------- */
if (iselect) findselect();
/* -------------------------------------------------------------------- */
/* Read all the records */
/* -------------------------------------------------------------------- */
jRecord = DBFGetRecordCount( hDBFappend );
for( iRecord = 0; iRecord < nEntities; iRecord++) /** DBFGetRecordCount(hDBF) **/
{
/* -------------------------------------------------------------------- */
/* SELECT for values if needed. (Can the record be skipped.) */
/* -------------------------------------------------------------------- */
if (iselect)
if (selectrec() == 0) goto SKIP_RECORD; /** SKIP RECORD **/
/* -------------------------------------------------------------------- */
/* Read a Shape record */
/* -------------------------------------------------------------------- */
psCShape = SHPReadObject( hSHP, iRecord );
/* -------------------------------------------------------------------- */
/* Clip coordinates of shapes if needed. */
/* -------------------------------------------------------------------- */
if (iclip)
if (clip_boundary() == 0) goto SKIP_RECORD; /** SKIP RECORD **/
/* -------------------------------------------------------------------- */
/* Read a DBF record and copy each field. */
/* -------------------------------------------------------------------- */
for( i = 0; i < DBFGetFieldCount(hDBF); i++ )
{
/* -------------------------------------------------------------------- */
/* Store the record according to the type and formatting */
/* information implicit in the DBF field description. */
/* -------------------------------------------------------------------- */
if (pt[i] > -1) /* if the current field exists in output file */
{
switch( DBFGetFieldInfo( hDBF, i, NULL, &iWidth, &iDecimals ) )
{
case FTString:
case FTLogical:
DBFWriteStringAttribute(hDBFappend, jRecord, pt[i],
(DBFReadStringAttribute( hDBF, iRecord, i )) );
break;
case FTInteger:
DBFWriteIntegerAttribute(hDBFappend, jRecord, pt[i],
(DBFReadIntegerAttribute( hDBF, iRecord, i )) );
break;
case FTDouble:
DBFWriteDoubleAttribute(hDBFappend, jRecord, pt[i],
(DBFReadDoubleAttribute( hDBF, iRecord, i )) );
break;
case FTInvalid:
break;
}
}
}
jRecord++;
/* -------------------------------------------------------------------- */
/* Change FACTOR and SHIFT coordinates of shapes if needed. */
/* -------------------------------------------------------------------- */
if (iunit)
{
for( j = 0; j < psCShape->nVertices; j++ )
{
psCShape->padfX[j] = psCShape->padfX[j] * factor + xshift;
psCShape->padfY[j] = psCShape->padfY[j] * factor + yshift;
}
}
/* -------------------------------------------------------------------- */
/* Write the Shape record after recomputing current extents. */
/* -------------------------------------------------------------------- */
SHPComputeExtents( psCShape );
SHPWriteObject( hSHPappend, -1, psCShape );
SKIP_RECORD:
SHPDestroyObject( psCShape );
psCShape = NULL;
j=0;
}
/* -------------------------------------------------------------------- */
/* Print out the # of Entities and the file bounds. */
/* -------------------------------------------------------------------- */
jRecord = DBFGetRecordCount( hDBFappend );
SHPGetInfo( hSHPappend, &nEntitiesAppend, &nShapeTypeAppend,
adfBoundsMin, adfBoundsMax );
printf( "Output Bounds: (%lg,%lg) - (%lg,%lg) Entities: %d DBF: %d\n\n",
adfBoundsMin[0], adfBoundsMin[1],
adfBoundsMax[0], adfBoundsMax[1],
nEntitiesAppend, jRecord );
/* -------------------------------------------------------------------- */
/* Close the both shapefiles. */
/* -------------------------------------------------------------------- */
SHPClose( hSHP );
SHPClose( hSHPappend );
DBFClose( hDBF );
DBFClose( hDBFappend );
if (nEntitiesAppend == 0) {
puts("Remove the output files.");
setext(outfile, "dbf");
remove(outfile);
setext(outfile, "shp");
remove(outfile);
setext(outfile, "shx");
remove(outfile);
}
return( 0 );
}
/************************************************************************/
/* openfiles() */
/************************************************************************/
void openfiles() {
/* -------------------------------------------------------------------- */
/* Open the DBF file. */
/* -------------------------------------------------------------------- */
setext(infile, "dbf");
hDBF = DBFOpen( infile, "rb" );
if( hDBF == NULL )
{
printf( "ERROR: Unable to open the input DBF:%s\n", infile );
exit( 1 );
}
/* -------------------------------------------------------------------- */
/* Open the append DBF file. */
/* -------------------------------------------------------------------- */
if (strcmp(outfile,"")) {
setext(outfile, "dbf");
hDBFappend = DBFOpen( outfile, "rb+" );
newdbf=0;
if( hDBFappend == NULL )
{
newdbf=1;
hDBFappend = DBFCreate( outfile );
if( hDBFappend == NULL )
{
printf( "ERROR: Unable to open the append DBF:%s\n", outfile );
exit( 1 );
}
}
}
/* -------------------------------------------------------------------- */
/* Open the passed shapefile. */
/* -------------------------------------------------------------------- */
setext(infile, "shp");
hSHP = SHPOpen( infile, "rb" );
if( hSHP == NULL )
{
printf( "ERROR: Unable to open the input shape file:%s\n", infile );
exit( 1 );
}
SHPGetInfo( hSHP, &nEntities, &nShapeType, NULL, NULL );
/* -------------------------------------------------------------------- */
/* Open the passed append shapefile. */
/* -------------------------------------------------------------------- */
if (strcmp(outfile,"")) {
setext(outfile, "shp");
hSHPappend = SHPOpen( outfile, "rb+" );
if( hSHPappend == NULL )
{
hSHPappend = SHPCreate( outfile, nShapeType );
if( hSHPappend == NULL )
{
printf( "ERROR: Unable to open the append shape file:%s\n",
outfile );
exit( 1 );
}
}
SHPGetInfo( hSHPappend, &nEntitiesAppend, &nShapeTypeAppend,
NULL, NULL );
if (nShapeType != nShapeTypeAppend)
{
puts( "ERROR: Input and Append shape files are of different types.");
exit( 1 );
}
}
}
/* -------------------------------------------------------------------- */
/* Change the extension. If there is any extension on the */
/* filename, strip it off and add the new extension */
/* -------------------------------------------------------------------- */
void setext(char *pt, char *ext)
{
int i;
for( i = strlen(pt)-1;
i > 0 && pt[i] != '.' && pt[i] != '/' && pt[i] != '\\';
i-- ) {}
if( pt[i] == '.' )
pt[i] = '\0';
strcat(pt,".");
strcat(pt,ext);
}
/* -------------------------------------------------------------------- */
/* Find matching fields in the append file. */
/* Output file must have zero records to add any new fields. */
/* -------------------------------------------------------------------- */
void mergefields()
{
int i,j;
ti = DBFGetFieldCount( hDBF );
tj = DBFGetFieldCount( hDBFappend );
/* Create a pointer array for the max # of fields in the output file */
pt = (int *) malloc( (ti+tj+1) * sizeof(int) );
for( i = 0; i < ti; i++ )
{
pt[i]= -1; /* Initial pt values to -1 */
}
/* DBF must be empty before adding items */
jRecord = DBFGetRecordCount( hDBFappend );
for( i = 0; i < ti; i++ )
{
iType = DBFGetFieldInfo( hDBF, i, iszTitle, &iWidth, &iDecimals );
found=FALSE;
{
for( j = 0; j < tj; j++ ) /* Search all field names for a match */
{
jType = DBFGetFieldInfo( hDBFappend, j, jszTitle, &jWidth, &jDecimals );
if (iType == jType && (strcmp(iszTitle, jszTitle) == 0) )
{
if (found || newdbf)
{
if (i == j) pt[i]=j;
printf("Warning: Duplicate field name found (%s)\n",iszTitle);
/* Duplicate field name
(Try to guess the correct field by position) */
}
else
{
pt[i]=j; found=TRUE;
}
}
}
}
if (pt[i] == -1 && (! found) ) /* Try to force into an existing field */
{ /* Ignore the field name, width, and decimal places */
jType = DBFGetFieldInfo( hDBFappend, j, jszTitle, &jWidth, &jDecimals );
if (iType == jType)
{
pt[i]=i; found=1;
}
}
if ( (! found) && jRecord == 0) /* Add missing field to the append table */
{ /* The output DBF must be is empty */
pt[i]=tj;
tj++;
if( DBFAddField( hDBFappend, iszTitle, iType, iWidth, iDecimals )
== -1 )
{
printf( "Warning: DBFAddField(%s, TYPE:%d, WIDTH:%d DEC:%d, ITEM#:%d of %d) failed.\n",
iszTitle, iType, iWidth, iDecimals, (i+1), (ti+1) );
pt[i]=-1;
}
}
}
}
void findselect()
{
/* Find the select field name */
iselectitem = -1;
for( i = 0; i < ti && iselectitem < 0; i++ )
{
iType = DBFGetFieldInfo( hDBF, i, iszTitle, &iWidth, &iDecimals );
if (strncasecmp2(iszTitle, selectitem, 0) == 0) iselectitem = i;
}
if (iselectitem == -1)
{
printf("Warning: Item not found for selection (%s)\n",selectitem);
iselect = FALSE;
iall = FALSE;
showitems();
printf("Continued... (Selecting entire file)\n");
}
/* Extract all of the select values (by field type) */
}
void showitems()
{
char stmp[40],slow[40],shigh[40];
double dtmp,dlow,dhigh,dsum,mean;
long int itmp,ilow,ihigh,isum;
long int maxrec;
char *pt;
printf("Available Items: (%d)",ti);
maxrec = DBFGetRecordCount(hDBF);
if (maxrec > 5000 && ! iall)
{ maxrec=5000; printf(" ** ESTIMATED RANGES (MEAN) For more records use \"All\""); }
else { printf(" RANGES (MEAN)"); }
for( i = 0; i < ti; i++ )
{
switch( DBFGetFieldInfo( hDBF, i, iszTitle, &iWidth, &iDecimals ) )
{
case FTString:
case FTLogical:
strcpy(slow, "~");
strcpy(shigh,"\0");
printf("\n String %3d %-16s",iWidth,iszTitle);
for( iRecord = 0; iRecord < maxrec; iRecord++ ) {
strncpy(stmp,DBFReadStringAttribute( hDBF, iRecord, i ),39);
if (strcmp(stmp,"!!") > 0) {
if (strncasecmp2(stmp,slow,0) < 0) strncpy(slow, stmp,39);
if (strncasecmp2(stmp,shigh,0) > 0) strncpy(shigh,stmp,39);
}
}
pt=slow+strlen(slow)-1;
while(*pt == ' ') { *pt='\0'; pt--; }
pt=shigh+strlen(shigh)-1;
while(*pt == ' ') { *pt='\0'; pt--; }
if (strncasecmp2(slow,shigh,0) < 0) printf("%s to %s",slow,shigh);
else if (strncasecmp2(slow,shigh,0) == 0) printf("= %s",slow);
else printf("No Values");
break;
case FTInteger:
printf("\n Integer %3d %-16s",iWidth,iszTitle);
ilow = 1999999999;
ihigh= -1999999999;
isum = 0;
for( iRecord = 0; iRecord < maxrec; iRecord++ ) {
itmp = DBFReadIntegerAttribute( hDBF, iRecord, i );
if (ilow > itmp) ilow = itmp;
if (ihigh < itmp) ihigh = itmp;
isum = isum + itmp;
}
mean=isum/maxrec;
if (ilow < ihigh) printf("%ld to %ld \t(%.1f)",ilow,ihigh,mean);
else if (ilow == ihigh) printf("= %ld",ilow);
else printf("No Values");
break;
case FTDouble:
printf("\n Real %3d,%d %-16s",iWidth,iDecimals,iszTitle);
dlow = 999999999999999.0;
dhigh= -999999999999999.0;
dsum = 0;
for( iRecord = 0; iRecord < maxrec; iRecord++ ) {
dtmp = DBFReadDoubleAttribute( hDBF, iRecord, i );
if (dlow > dtmp) dlow = dtmp;
if (dhigh < dtmp) dhigh = dtmp;
dsum = dsum + dtmp;
}
mean=dsum/maxrec;
sprintf(stmp,"%%.%df to %%.%df \t(%%.%df)",iDecimals,iDecimals,iDecimals);
if (dlow < dhigh) printf(stmp,dlow,dhigh,mean);
else if (dlow == dhigh) {
sprintf(stmp,"= %%.%df",iDecimals);
printf(stmp,dlow);
}
else printf("No Values");
break;
case FTInvalid:
break;
}
}
printf("\n");
}
int selectrec()
{
long int value, ty;
ty = DBFGetFieldInfo( hDBF, iselectitem, NULL, &iWidth, &iDecimals);
switch(ty)
{
case FTString:
puts("Invalid Item");
iselect=FALSE;
break;
case FTInteger:
value = DBFReadIntegerAttribute( hDBF, iRecord, iselectitem );
for (j = 0; j<selcount; j++)
{
if (selectvalues[j] == value)
{
if (iunselect) return(0); /* Keep this record */
else return(1); /* Skip this record */
}
}
break;
case FTDouble:
puts("Invalid Item");
iselect=FALSE;
break;
}
if (iunselect) return(1); /* Skip this record */
else return(0); /* Keep this record */
}
void check_theme_bnd()
{
if ( (adfBoundsMin[0] >= cxmin) && (adfBoundsMax[0] <= cxmax) &&
(adfBoundsMin[1] >= cymin) && (adfBoundsMax[1] <= cymax) )
{ /** Theme is totally inside clip area **/
if (ierase) nEntities=0; /** SKIP THEME **/
else iclip=FALSE; /** WRITE THEME (Clip not needed) **/
}
if ( ( (adfBoundsMin[0] < cxmin) && (adfBoundsMax[0] < cxmin) ) ||
( (adfBoundsMin[1] < cymin) && (adfBoundsMax[1] < cymin) ) ||
( (adfBoundsMin[0] > cxmax) && (adfBoundsMax[0] > cxmax) ) ||
( (adfBoundsMin[1] > cymax) && (adfBoundsMax[1] > cymax) ) )
{ /** Theme is totally outside clip area **/
if (ierase) iclip=FALSE; /** WRITE THEME (Clip not needed) **/
else nEntities=0; /** SKIP THEME **/
}
if (nEntities == 0)
puts("WARNING: Theme is outside the clip area."); /** SKIP THEME **/
}
int clip_boundary()
{
int inside;
int prev_outside;
int i2;
int j2;
/*** FIRST check the boundary of the feature ***/
if ( ( (psCShape->dfXMin < cxmin) && (psCShape->dfXMax < cxmin) ) ||
( (psCShape->dfYMin < cymin) && (psCShape->dfYMax < cymin) ) ||
( (psCShape->dfXMin > cxmax) && (psCShape->dfXMax > cxmax) ) ||
( (psCShape->dfYMin > cymax) && (psCShape->dfYMax > cymax) ) )
{ /** Feature is totally outside clip area **/
if (ierase) return(1); /** WRITE RECORD **/
else return(0); /** SKIP RECORD **/
}
if ( (psCShape->dfXMin >= cxmin) && (psCShape->dfXMax <= cxmax) &&
(psCShape->dfYMin >= cymin) && (psCShape->dfYMax <= cymax) )
{ /** Feature is totally inside clip area **/
if (ierase) return(0); /** SKIP RECORD **/
else return(1); /** WRITE RECORD **/
}
if (iinside)
{ /** INSIDE * Feature might touch the boundary or could be outside **/
if (ierase) return(1); /** WRITE RECORD **/
else return(0); /** SKIP RECORD **/
}
if (itouch)
{ /** TOUCH **/
if ( ( (psCShape->dfXMin <= cxmin) || (psCShape->dfXMax >= cxmax) ) &&
(psCShape->dfYMin >= cymin) && (psCShape->dfYMax <= cymax) )
{ /** Feature intersects the clip boundary only on the X axis **/
if (ierase) return(0); /** SKIP RECORD **/
else return(1); /** WRITE RECORD **/
}
if ( (psCShape->dfXMin >= cxmin) && (psCShape->dfXMax <= cxmax) &&
( (psCShape->dfYMin <= cymin) || (psCShape->dfYMax >= cymax) ) )
{ /** Feature intersects the clip boundary only on the Y axis **/
if (ierase) return(0); /** SKIP RECORD **/
else return(1); /** WRITE RECORD **/
}
for( j2 = 0; j2 < psCShape->nVertices; j2++ )
{ /** At least one vertex must be inside the clip boundary **/
if ( (psCShape->padfX[j2] >= cxmin && psCShape->padfX[j2] <= cxmax) ||
(psCShape->padfY[j2] >= cymin && psCShape->padfY[j2] <= cymax) )
{
if (ierase) return(0); /** SKIP RECORD **/
else return(1); /** WRITE RECORD **/
}
}
/** All vertices are outside the clip boundary **/
if (ierase) return(1); /** WRITE RECORD **/
else return(0); /** SKIP RECORD **/
} /** End TOUCH **/
if (icut)
{ /** CUT **/
/*** Check each vertex in the feature with the Boundary and "CUT" ***/
/*** THIS CODE WAS NOT COMPLETED! READ NOTE AT THE BOTTOM ***/
i2=0;
prev_outside=FALSE;
for( j2 = 0; j2 < psCShape->nVertices; j2++ )
{
inside = psCShape->padfX[j2] >= cxmin && psCShape->padfX[j2] <= cxmax &&
psCShape->padfY[j2] >= cymin && psCShape->padfY[j2] <= cymax ;
if (ierase) inside=(! inside);
if (inside)
{
if (i2 != j2)
{
if (prev_outside)
{
/*** AddIntersection(i2); ***/ /*** Add intersection ***/
prev_outside=FALSE;
}
psCShape->padfX[i2]=psCShape->padfX[j2]; /** move vertex **/
psCShape->padfY[i2]=psCShape->padfY[j2];
}
i2++;
} else {
if ( (! prev_outside) && (j2 > 0) )
{
/*** AddIntersection(i2); ***//*** Add intersection (Watch out for j2==i2-1) ***/
/*** Also a polygon may overlap twice and will split into a several parts ***/
prev_outside=TRUE;
}
}
}
printf("Vertices:%d OUT:%d Number of Parts:%d\n",
psCShape->nVertices,i2, psCShape->nParts );
psCShape->nVertices = i2;
if (i2 < 2) return(0); /** SKIP RECORD **/
/*** (WE ARE NOT CREATING INTERESECTIONS and some lines could be reduced to one point) **/
if (i2 == 0) return(0); /** SKIP RECORD **/
else return(1); /** WRITE RECORD **/
} /** End CUT **/
}
/************************************************************************/
/* strncasecmp2() */
/* */
/* Compare two strings up to n characters */
/* If n=0 then s1 and s2 must be an exact match */
/************************************************************************/
int strncasecmp2(char *s1, char *s2, int n)
{
int j,i;
if (n<1) n=strlen(s1)+1;
for (i=0; i<n; i++)
{
if (*s1 != *s2)
{
if (*s1 >= 'a' && *s1 <= 'z') {
j=*s1-32;
if (j != *s2) return(*s1-*s2);
} else {
if (*s1 >= 'A' && *s1 <= 'Z') { j=*s1+32; }
else { j=*s1; }
if (j != *s2) return(*s1-*s2);
}
}
s1++;
s2++;
}
return(0);
}
#define NKEYS (sizeof(unitkeytab) / sizeof(struct unitkey))
double findunit(char *unit)
{
struct unitkey {
char *name;
double value;
} unitkeytab[] = {
"CM", 39.37,
"CENTIMETER", 39.37,
"CENTIMETERS", 39.37, /** # of inches * 100 in unit **/
"METER", 3937,
"METERS", 3937,
"KM", 3937000,
"KILOMETER", 3937000,
"KILOMETERS", 3937000,
"INCH", 100,
"INCHES", 100,
"FEET", 1200,
"FOOT", 1200,
"YARD", 3600,
"YARDS", 3600,
"MILE", 6336000,
"MILES", 6336000
};
double unitfactor=0;
for (j = 0; j < NKEYS; j++) {
if (strncasecmp2(unit, unitkeytab[j].name, 0) == 0) unitfactor=unitkeytab[j].value;
}
return(unitfactor);
}
/* -------------------------------------------------------------------- */
/* Display a usage message. */
/* -------------------------------------------------------------------- */
void error()
{
puts( "The program will append to an existing shape file or it will" );
puts( "create a new file if needed." );
puts( "Only the items in the first output file will be preserved." );
puts( "When an item does not match with the append theme then the item");
puts( "might be placed to an existing item at the same position and type." );
puts( " OTHER FUNCTIONS:" );
puts( " - Describe all items in the dbase file (Use ALL for more than 5000 recs.)");
puts( " - Select a group of shapes from a comma separated selection list.");
puts( " - UnSelect a group of shapes from a comma separated selection list.");
puts( " - Clip boundary extent or by theme boundary." );
puts( " Touch writes all the shapes that touch the boundary.");
puts( " Inside writes all the shapes that are completely within the boundary.");
puts( " Boundary clips are only the min and max of a theme boundary." );
puts( " - Erase boundary extent or by theme boundary." );
puts( " Erase is the direct opposite of the Clip function." );
puts( " - Change coordinate value units between meters and feet.");
puts( " There is no way to determine the input unit of a shape file.");
puts( " Skip this function if the shape file is already in the correct unit.");
puts( " Clip and Erase will be done before the unit is changed.");
puts( " A shift will be done after the unit is changed.");
puts( " - Shift X and Y coordinates.\n" );
puts( "Finally, There can only be one select or unselect in the command line.");
puts( " There can only be one clip or erase in the command line.");
puts( " There can only be one unit and only one shift in the command line.\n");