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/****************************************************************************
*
* MODULE: v.transform
* AUTHOR(S): See below also.
* Eric G. Miller <egm2@jps.net>
* Upgrade to 5.7 Radim Blazek
* PURPOSE: To transform a vector layer's coordinates via a set of tie
* points.
* COPYRIGHT: (C) 2002 by the GRASS Development Team
*
* This program is free software under the GNU General Public
* License (>=v2). Read the file COPYING that comes with GRASS
* for details.
*
*****************************************************************************/
/*
*History:
*- This takes an ascii digit file in one coordinate system and converts
* the map to another coordinate system.
* Uses the transform library: $(TRANSLIB)
*
* Written during the ice age of Illinois, 02/16/90, by the GRASS team, -mh.
*
*- Modified by Dave Gerdes 1/90 for dig_head stuff
*- Modified by Radim Blazek to work on binary files 2002
*/
#define MAIN
#include <stdlib.h>
#include <string.h>
#include "trans.h"
#include "gis.h"
#include "Vect.h"
#include "dbmi.h"
#include "local_proto.h"
#include "glocale.h"
int main (int argc, char *argv[])
{
struct file_info Current, Trans, Coord ;
struct GModule *module;
struct Option *old, *new, *pointsfile, *xshift, *yshift, *zshift, *xscale, *yscale, *zscale, *zrot;
struct Flag *quiet_flag, *tozero_flag, *shift_flag;
char *mapset, mon[4], date[40], buf[1000];
struct Map_info Old, New;
int day, yr;
BOUND_BOX box;
double ztozero;
G_gisinit(argv[0]) ;
module = G_define_module();
module->description = "Transforms an vector map layer from one "
"coordinate system into another coordinate system.";
quiet_flag = G_define_flag();
quiet_flag->key = 'q';
quiet_flag->description = "suppress display of residuals or other information";
tozero_flag = G_define_flag();
tozero_flag->key = 't';
tozero_flag->description = "shift all z values to bottom=0";
shift_flag = G_define_flag();
shift_flag->key = 's';
shift_flag->description = "Instead of points use transformation options "
"(xshift, yshift, zshif, xscale, yscale, zscale, zrot)";
old = G_define_option();
old->key = "input";
old->type = TYPE_STRING;
old->required = YES;
old->multiple = NO;
old->gisprompt = "old,vector,vector";
old->description = "vector map to be transformed";
new = G_define_option();
new->key = "output";
new->type = TYPE_STRING;
new->required = YES;
new->multiple = NO;
new->gisprompt = "new,vector,vector";
new->description = "resultant vector map";
pointsfile = G_define_option();
pointsfile->key = "pointsfile";
pointsfile->type = TYPE_STRING;
pointsfile->required = NO;
pointsfile->multiple = NO;
pointsfile->description = "file holding transform coordinates";
pointsfile->gisprompt = "file,file,file";
xshift = G_define_option();
xshift->key = "xshift";
xshift->type = TYPE_DOUBLE;
xshift->required = NO;
xshift->multiple = NO;
xshift->description = "shifting value for x coordinates";
xshift->answer = "0.0";
yshift = G_define_option();
yshift->key = "yshift";
yshift->type = TYPE_DOUBLE;
yshift->required = NO;
yshift->multiple = NO;
yshift->description = "shifting value for y coordinates";
yshift->answer = "0.0";
zshift = G_define_option();
zshift->key = "zshift";
zshift->type = TYPE_DOUBLE;
zshift->required = NO;
zshift->multiple = NO;
zshift->description = "shifting value for z coordinates";
zshift->answer = "0.0";
xscale = G_define_option();
xscale->key = "xscale";
xscale->type = TYPE_DOUBLE;
xscale->required = NO;
xscale->multiple = NO;
xscale->description = "scaling factor for x coordinates";
xscale->answer = "1.0";
yscale = G_define_option();
yscale->key = "yscale";
yscale->type = TYPE_DOUBLE;
yscale->required = NO;
yscale->multiple = NO;
yscale->description = "scaling factor for y coordinates";
yscale->answer = "1.0";
zscale = G_define_option();
zscale->key = "zscale";
zscale->type = TYPE_DOUBLE;
zscale->required = NO;
zscale->multiple = NO;
zscale->description = "scaling factor for z coordinates";
zscale->answer = "1.0";
zrot = G_define_option();
zrot->key = "zrot";
zrot->type = TYPE_DOUBLE;
zrot->required = NO;
zrot->multiple = NO;
zrot->description = "rotation around z axis in degrees counterclockwise";
zrot->answer = "0.0";
if (G_parser (argc, argv))
exit (-1);
strcpy (Current.name, old->answer);
strcpy (Trans.name, new->answer);
Vect_check_input_output_name ( old->answer, new->answer, GV_FATAL_EXIT );
if ( !shift_flag->answer ) {
if (pointsfile->answer != NULL)
strcpy (Coord.name, pointsfile->answer);
else
Coord.name[0] = '\0';
/* open coord file */
if ( Coord.name[0] != '\0' ){
if ( (Coord.fp = fopen(Coord.name, "r")) == NULL)
G_fatal_error ( _("Could not open file with coordinates : %s\n"), Coord.name) ;
}
}
/* open vectors */
if ( (mapset = G_find_vector2 ( old->answer, "")) == NULL)
G_fatal_error ( _("Could not find input map <%s>\n"), old->answer);
Vect_open_old(&Old, old->answer, mapset);
Vect_open_new (&New, new->answer, Vect_is_3d(&Old) );
/* copy and set header */
Vect_copy_head_data(&Old, &New);
Vect_hist_copy (&Old, &New);
Vect_hist_command ( &New );
sprintf(date,"%s",G_date());
sscanf(date,"%*s%s%d%*s%d",mon,&day,&yr);
sprintf(date,"%s %d %d",mon,day,yr);
Vect_set_date ( &New, date );
Vect_set_person ( &New, G_whoami() );
sprintf (buf, "transformed from %s", old->answer);
Vect_set_map_name ( &New, buf);
Vect_set_scale ( &New, 1 );
Vect_set_zone ( &New, 0 );
Vect_set_thresh ( &New, 0.0 );
if ( !shift_flag->answer ) {
create_transform_conversion( &Coord, quiet_flag->answer);
if (Coord.name[0] != '\0')
fclose( Coord.fp) ;
}
if (!quiet_flag->answer)
G_message ( _("\nNow transforming the vectors ...\n"));
Vect_get_map_box (&Old, &box );
if (tozero_flag->answer)
ztozero = 0 - box.B;
else
ztozero = 0;
transform_digit_file( &Old, &New, shift_flag->answer,
atof(xshift->answer), atof(yshift->answer), atof(zshift->answer), ztozero,
atof(zrot->answer), atof(xscale->answer), atof(yscale->answer), atof(zscale->answer)) ;
Vect_copy_tables ( &Old, &New, 0 );
Vect_close (&Old);
if (!quiet_flag->answer) Vect_build (&New, stdout); else Vect_build (&New, NULL);
Vect_get_map_box (&New, &box );
G_message ( _("New vector map <%s> boundary coordinates:\n"), new->answer);
G_message ( _(" N: %-10.3f S: %-10.3f\n"), box.N, box.S);
G_message ( _(" E: %-10.3f W: %-10.3f\n"), box.E, box.W);
G_message ( _(" B: %6.3f T: %6.3f\n"), box.B, box.T);
Vect_close (&New);
if (!quiet_flag->answer)
G_message ( _("'%s' has finished the transformation of the vectors.\n"), argv[0]) ;
exit(0) ;
}
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