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/*
ESRI shp/shx shapefiles.
Copyright (C) 2003 Robert Lipe, robertlipe@usa.net
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111 USA
*/
#include "defs.h"
#include "shapelib/shapefil.h"
static SHPHandle ihandle;
static DBFHandle ihandledb;
static SHPHandle ohandle;
#define MYNAME "shape"
static unsigned poly_count;
static double *polybufx;
static double *polybufy;
static double *polybufz;
static const char *ofname;
static int nameidx;
static void
my_rd_init(const char *fname)
{
int i;
ihandle = SHPOpen(fname, "rb" );
if (ihandle == NULL) {
fatal(MYNAME ":Cannot open shp file %s for reading\n", fname);
}
ihandledb = DBFOpen(fname, "rb" );
if (ihandledb == NULL) {
fatal(MYNAME ":Cannot open dbf file %s for reading\n", fname);
}
nameidx = DBFGetFieldIndex( ihandledb, "NAME" );
if (nameidx == -1) {
// fatal(MYNAME ":dbf file for %s doesn't have 'NAME'\n", fname);
}
}
void
my_read(void)
{
int npts;
SHPGetInfo(ihandle, &npts, NULL, NULL, NULL);
while (npts) {
SHPObject *shp;
waypoint *wpt;
const char *name;
shp = SHPReadObject(ihandle, npts-1);
name = DBFReadStringAttribute(ihandledb, npts-1, nameidx);
if (shp->nSHPType == SHPT_ARC) {
int j;
route_head *track_head = route_head_alloc();
route_add_head(track_head);
for (j = 0; j < shp->nVertices; j++) {
wpt = waypt_new();
wpt->latitude = shp->padfY[j];
wpt->longitude = shp->padfX[j];
wpt->altitude = shp->padfZ[j];
route_add_wpt(track_head, wpt);
}
}
if (shp->nSHPType == SHPT_POINT) {
wpt = waypt_new();
wpt->latitude = shp->dfYMin;
wpt->longitude = shp->dfXMin;
wpt->shortname = strdup(name);
waypt_add(wpt);
}
SHPDestroyObject(shp);
npts--;
}
}
void
my_rd_deinit(void)
{
close (ihandle);
}
void
my_wr_init(const char *fname)
{
ofname = fname;
}
void
my_wr_deinit(void)
{
SHPClose (ohandle);
}
void
my_write_wpt(const waypoint *wpt)
{
SHPObject *shpobject;
shpobject = SHPCreateSimpleObject(SHPT_POINT, 1,
(double *)(void *)&wpt->longitude,
(double *)(void *)&wpt->latitude,
(double *)(void *)&wpt->altitude);
SHPWriteObject(ohandle, -1, shpobject);
SHPDestroyObject(shpobject);
}
void
poly_init()
{
int ct = route_waypt_count();
polybufx = xcalloc(ct, sizeof(double));
polybufy = xcalloc(ct, sizeof(double));
polybufz = xcalloc(ct, sizeof(double));
}
void
poly_point(const waypoint *wpt)
{
polybufx[poly_count] = wpt->longitude;
polybufy[poly_count] = wpt->latitude;
polybufz[poly_count] = wpt->altitude;
poly_count++;
}
void
poly_deinit()
{
SHPObject *shpobject;
shpobject = SHPCreateSimpleObject(SHPT_ARC, route_waypt_count(),
polybufx, polybufy, polybufz);
SHPWriteObject(ohandle, -1, shpobject);
SHPDestroyObject(shpobject);
xfree(polybufx);
xfree(polybufy);
xfree(polybufz);
fprintf(stderr, "Done\n");
poly_count = 0;
}
void
my_write(void)
{
switch(global_opts.objective) {
case wptdata:
ohandle = SHPCreate(ofname, SHPT_POINT);
if (ohandle == NULL) {
fatal(MYNAME ":Cannot open %s for writing\n",
ofname);
}
waypt_disp_all(my_write_wpt);
break;
case trkdata:
ohandle = SHPCreate(ofname, SHPT_ARC);
if (ohandle == NULL) {
fatal(MYNAME ":Cannot open %s for writing\n",
ofname);
}
route_disp_all(poly_init, poly_deinit, poly_point);
break;
}
}
ff_vecs_t shape_vecs = {
ff_type_internal,
my_rd_init,
my_wr_init,
my_rd_deinit,
my_wr_deinit,
my_read,
my_write,
NULL
};
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