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/*
* Start up graphics processing. Anything that needs to be assigned, set up,
* started-up, or otherwise initialized happens here. This is called only at
* the startup of the graphics driver.
*
* The external variables define the pixle limits of the graphics surface. The
* coordinate system used by the applications programs has the (0,0) origin
* in the upper left-hand corner. Hence,
* screen_left < screen_right
* screen_top < screen_bottom
*
*/
#include <string.h>
#include <stdlib.h>
#include "gis.h"
#include "driverlib.h"
#include "driver.h"
#include "htmlmap.h"
char *last_text;
int last_text_len;
char *file_name;
int html_type;
FILE *output;
struct MapPoly *head;
struct MapPoly **tail;
int BBOX_MINIMUM;
int MAX_POINTS;
int MINIMUM_DIST;
int Graph_Set (int argc, char **argv)
{
char *p;
G_gisinit("HTMLMAP driver") ;
NCOLORS = 256;
/*
* set the minimum bounding box dimensions
*/
if (NULL != (p = getenv ("GRASS_HTMLMINBBOX"))) {
BBOX_MINIMUM = atoi (p);
if (BBOX_MINIMUM <= 0) {
BBOX_MINIMUM = DEF_MINBBOX;
}
} else {
BBOX_MINIMUM = DEF_MINBBOX;
}
/*
* set the maximum number of points
*/
if (NULL != (p = getenv ("GRASS_HTMLMAXPOINTS"))) {
MAX_POINTS = atoi (p);
if (MAX_POINTS <= 0) {
MAX_POINTS = DEF_MAXPTS;
}
} else {
MAX_POINTS = DEF_MAXPTS;
}
/*
* set the minimum difference to keep a point
*/
if (NULL != (p = getenv ("GRASS_HTMLMINDIST"))) {
MINIMUM_DIST = atoi (p);
if (MINIMUM_DIST <= 0) {
MINIMUM_DIST = DEF_MINDIST;
}
} else {
MINIMUM_DIST = DEF_MINDIST;
}
/*
* open the output file
*/
if (NULL != (p = getenv ("GRASS_HTMLFILE"))) {
if (strlen(p) == 0) {
p = FILE_NAME;
}
} else {
p = FILE_NAME;
}
file_name = p;
output = fopen(file_name, "w");
if (output == NULL) {
fprintf(stderr,"HTMLMAP: couldn't open output file %s\n",file_name);
exit(1);
}
printf("HTMLMAP: collecting to file: %s\n width = %d, height = %d, ",
file_name, screen_right, screen_bottom);
/*
* check type of map wanted
*/
if (NULL == (p = getenv ("GRASS_HTMLTYPE"))) {
p = "CLIENT";
}
if (strcmp(p,"APACHE") == 0) {
html_type = APACHE;
printf("type = APACHE\n");
} else if (strcmp(p,"RAW") == 0) {
html_type = RAW;
printf("type = RAW\n");
} else {
html_type = CLIENT;
printf("type = CLIENT\n");
}
/*
* initialize text memory and list pointers
*/
last_text = (char *) malloc(INITIAL_TEXT+1);
last_text[0] = '\0';
last_text_len = INITIAL_TEXT;
head = NULL;
tail = &head;
return 0;
}
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