int do_grid_numbers(void)
{
double g;
char num_text[50];
int grid, vy, vx, hy = 0, hx = 0;
int first, len, x, y, last_bottom, last_right;
int rounded_grid, margin;
if (PS.grid <= 0 || PS.grid_numbers <= 0)
return 1;
grid = PS.grid * PS.grid_numbers;
/* round grid to multiple of 10 */
rounded_grid = 1;
if (PS.w.proj != PROJECTION_LL) {
sprintf(num_text, "%d", PS.grid);
len = strlen(num_text);
while (len-- && num_text[len] == '0')
rounded_grid *= 10;
if (rounded_grid == 10)
rounded_grid = 1;
}
/* initialize */
set_font_name(PS.grid_font);
set_font_size(PS.grid_fontsize);
set_ps_color(&PS.grid_numbers_color);
first = 1;
/* horizontal grid numbers
* these numbers only appear on the left edge of the first panel.
* center the numbers on each grid line.
* suppress number if it falls off the map or would overlay the previous
* label
*/
margin = (int)(0.2 * (double)PS.grid_fontsize + 0.5);
if (margin < 2)
margin = 2;
fprintf(PS.fp, "/mg %d def\n", margin);
g = floor(PS.w.north / grid) * grid;
last_bottom = (int)PS.map_top;
first = 1;
/* x = XCONV(PS.w.west); */
for (; g > PS.w.south; g -= grid) {
/*y = YCONV(g); */
G_plot_where_xy(PS.w.west, g, &vx, &vy);
x = (double)vx / 10.;
y = (double)vy / 10.;
if (y + PS.grid_fontsize > last_bottom)
continue;
if (y - PS.grid_fontsize < (int)PS.map_bot)
continue;
sprintf(num_text, "%s", format_northing(g, rounded_grid));
text_box_path(x, y, LEFT, CENTER, num_text, PS.grid_fontsize, 0);
set_rgb_color(WHITE);
fprintf(PS.fp, "F ");
set_ps_color(&PS.grid_numbers_color);
fprintf(PS.fp, "TIB\n");
last_bottom = y - PS.grid_fontsize;
if (first) {
first = 0;
hy = y + (int)(0.5 * (double)PS.grid_fontsize + 0.5) + margin;
hx = x + 0.7 * strlen(num_text) * PS.grid_fontsize + 2 * margin;
}
}
/* vertical grid numbers
* center the numbers on each grid line.
* suppress number if it falls of the map or would overlay the previous
* label
*/
g = floor(PS.w.west / grid) * grid;
last_right = (int)PS.map_left;
/* y = YCONV(PS.w.north); */
for (; g < PS.w.east; g += grid) {
/* x = XCONV(g); */
G_plot_where_xy(g, PS.w.north, &vx, &vy);
x = (double)vx / 10.;
y = (double)vy / 10.;
if (x - PS.grid_fontsize < last_right)
continue;
if (x + PS.grid_fontsize > (int)PS.map_right)
continue;
sprintf(num_text, "%s", format_easting(g, rounded_grid));
vy = y - 0.7 * strlen(num_text) * PS.grid_fontsize - 2 * margin;
vx = x - (int)(0.5 * (double)PS.grid_fontsize + 0.5) - margin;
if (vx < hx && vy < hy)
continue;
fprintf(PS.fp, "ZB (%s) PB 90 rotate\n", num_text);
fprintf(PS.fp, "%d br sub bl add mg add\n", y);
fprintf(PS.fp, "%d bt bb sub D2 add mg sub neg TR TB\n", x);
set_rgb_color(WHITE);
fprintf(PS.fp, "F ");
set_ps_color(&PS.grid_numbers_color);
fprintf(PS.fp, "TIB\n");
last_right = x + PS.grid_fontsize;
}
return 0;
}
int E_edit_cellhd(struct Cell_head *cellhd, int type)
{
char ll_north[20];
char ll_south[20];
char ll_east[20];
char ll_west[20];
char ll_nsres[20];
char ll_ewres[20];
char ll_def_north[20];
char ll_def_south[20];
char ll_def_east[20];
char ll_def_west[20];
char ll_def_ewres[20];
char ll_def_nsres[20];
char projection[80];
char **screen;
struct Cell_head def_wind;
double north, south, east, west;
double nsres, ewres;
char buf[64], buf2[30], *p;
short ok;
int line;
char *prj;
char *err;
if (type == AS_CELLHD && (cellhd->rows <= 0 || cellhd->cols <= 0)) {
G_message("E_edit_cellhd() - programmer error");
G_message(" ** rows and cols must be positive **");
return -1;
}
if (type != AS_DEF_WINDOW) {
if (G_get_default_window(&def_wind) != 1)
return -1;
if (cellhd->proj < 0) {
cellhd->proj = def_wind.proj;
cellhd->zone = def_wind.zone;
}
else if (cellhd->zone < 0)
cellhd->zone = def_wind.zone;
}
prj = G__projection_name(cellhd->proj);
if (!prj)
prj = "** unknown **";
sprintf(projection, "%d (%s)", cellhd->proj, prj);
if (type != AS_DEF_WINDOW) {
if (cellhd->west >= cellhd->east || cellhd->south >= cellhd->north) {
cellhd->north = def_wind.north;
cellhd->south = def_wind.south;
cellhd->west = def_wind.west;
cellhd->east = def_wind.east;
if (type != AS_CELLHD) {
cellhd->ew_res = def_wind.ew_res;
cellhd->ns_res = def_wind.ns_res;
cellhd->rows = def_wind.rows;
cellhd->cols = def_wind.cols;
}
}
if (cellhd->proj != def_wind.proj) {
if (type == AS_CELLHD)
G_message
("header projection %d differs from default projection %d",
cellhd->proj, def_wind.proj);
else
G_message
("region projection %d differs from default projection %d",
cellhd->proj, def_wind.proj);
if (!G_yes("do you want to make them match? ", 1))
return -1;
cellhd->proj = def_wind.proj;
cellhd->zone = def_wind.zone;
}
if (cellhd->zone != def_wind.zone) {
if (type == AS_CELLHD)
G_message("header zone %d differs from default zone %d",
cellhd->zone, def_wind.zone);
else
G_message("region zone %d differs from default zone %d",
cellhd->zone, def_wind.zone);
if (!G_yes("do you want to make them match? ", 1))
return -1;
cellhd->zone = def_wind.zone;
}
*ll_def_north = 0;
*ll_def_south = 0;
*ll_def_east = 0;
*ll_def_west = 0;
*ll_def_ewres = 0;
*ll_def_nsres = 0;
format_northing(def_wind.north, ll_def_north, def_wind.proj);
format_northing(def_wind.south, ll_def_south, def_wind.proj);
format_easting(def_wind.east, ll_def_east, def_wind.proj);
format_easting(def_wind.west, ll_def_west, def_wind.proj);
format_resolution(def_wind.ew_res, ll_def_ewres, def_wind.proj);
format_resolution(def_wind.ns_res, ll_def_nsres, def_wind.proj);
}
*ll_north = 0;
*ll_south = 0;
*ll_east = 0;
*ll_west = 0;
*ll_ewres = 0;
*ll_nsres = 0;
format_northing(cellhd->north, ll_north, cellhd->proj);
format_northing(cellhd->south, ll_south, cellhd->proj);
format_easting(cellhd->east, ll_east, cellhd->proj);
format_easting(cellhd->west, ll_west, cellhd->proj);
format_resolution(cellhd->ew_res, ll_ewres, cellhd->proj);
format_resolution(cellhd->ns_res, ll_nsres, cellhd->proj);
while (1) {
ok = 1;
/* List window options on the screen for the user to answer */
switch (type) {
case AS_CELLHD:
screen = cellhd_screen;
break;
case AS_DEF_WINDOW:
screen = def_window_screen;
break;
default:
screen = window_screen;
break;
}
V_clear();
line = 0;
while (*screen)
V_line(line++, *screen++);
/* V_ques ( variable, type, row, col, length) ; */
V_ques(ll_north, 's', 6, 36, 10);
V_ques(ll_south, 's', 10, 36, 10);
V_ques(ll_west, 's', 9, 12, 10);
V_ques(ll_east, 's', 9, 52, 10);
if (type != AS_CELLHD) {
V_ques(ll_ewres, 's', 18, 48, 10);
V_ques(ll_nsres, 's', 19, 48, 10);
}
if (type != AS_DEF_WINDOW) {
V_const(ll_def_north, 's', 3, 36, 10);
V_const(ll_def_south, 's', 13, 36, 10);
V_const(ll_def_west, 's', 9, 1, 10);
V_const(ll_def_east, 's', 9, 65, 10);
if (type != AS_CELLHD) {
V_const(ll_def_ewres, 's', 18, 21, 10);
V_const(ll_def_nsres, 's', 19, 21, 10);
}
}
V_const(projection, 's', 15, 23, (int)strlen(projection));
V_const(&cellhd->zone, 'i', 15, 60, 3);
V_intrpt_ok();
if (!V_call())
return -1;
G_squeeze(ll_north);
G_squeeze(ll_south);
G_squeeze(ll_east);
G_squeeze(ll_west);
if (type != AS_CELLHD) {
G_squeeze(ll_ewres);
G_squeeze(ll_nsres);
}
if (!G_scan_northing(ll_north, &cellhd->north, cellhd->proj)) {
G_warning("Illegal value for north: %s", ll_north);
ok = 0;
}
if (!G_scan_northing(ll_south, &cellhd->south, cellhd->proj)) {
G_warning("Illegal value for south: %s", ll_south);
ok = 0;
}
if (!G_scan_easting(ll_east, &cellhd->east, cellhd->proj)) {
G_warning("Illegal value for east: %s", ll_east);
ok = 0;
}
if (!G_scan_easting(ll_west, &cellhd->west, cellhd->proj)) {
G_warning("Illegal value for west: %s", ll_west);
ok = 0;
}
if (type != AS_CELLHD) {
if (!G_scan_resolution(ll_ewres, &cellhd->ew_res, cellhd->proj)) {
G_warning("Illegal east-west resolution: %s", ll_ewres);
ok = 0;
}
if (!G_scan_resolution(ll_nsres, &cellhd->ns_res, cellhd->proj)) {
G_warning("Illegal north-south resolution: %s", ll_nsres);
ok = 0;
}
}
if (!ok) {
hitreturn();
continue;
}
/* Adjust and complete the cell header */
north = cellhd->north;
south = cellhd->south;
east = cellhd->east;
west = cellhd->west;
nsres = cellhd->ns_res;
ewres = cellhd->ew_res;
if ((err =
G_adjust_Cell_head(cellhd, type == AS_CELLHD,
type == AS_CELLHD))) {
G_message("%s", err);
hitreturn();
continue;
}
if (type == AS_CELLHD) {
nsres = cellhd->ns_res;
ewres = cellhd->ew_res;
}
SHOW:
fprintf(stderr, "\n\n");
G_message(" projection: %s", projection);
G_message(" zone: %d", cellhd->zone);
G_format_northing(cellhd->north, buf, cellhd->proj);
G_format_northing(north, buf2, cellhd->proj);
fprintf(stderr, " north: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n");
G_format_northing(cellhd->south, buf, cellhd->proj);
G_format_northing(south, buf2, cellhd->proj);
fprintf(stderr, " south: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n");
G_format_easting(cellhd->east, buf, cellhd->proj);
G_format_easting(east, buf2, cellhd->proj);
fprintf(stderr, " east: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n");
G_format_easting(cellhd->west, buf, cellhd->proj);
G_format_easting(west, buf2, cellhd->proj);
fprintf(stderr, " west: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to match resolution)");
}
fprintf(stderr, "\n\n");
G_format_resolution(cellhd->ew_res, buf, cellhd->proj);
G_format_resolution(ewres, buf2, cellhd->proj);
fprintf(stderr, " e-w res: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to conform to grid)");
}
fprintf(stderr, "\n");
G_format_resolution(cellhd->ns_res, buf, cellhd->proj);
G_format_resolution(nsres, buf2, cellhd->proj);
fprintf(stderr, " n-s res: %s", buf);
if (strcmp(buf, buf2) != 0) {
ok = 0;
fprintf(stderr, " (Changed to conform to grid)");
}
fprintf(stderr, "\n\n");
G_message(" total rows: %15d", cellhd->rows);
G_message(" total cols: %15d", cellhd->cols);
sprintf(buf, "%lf", (double)cellhd->rows * cellhd->cols);
*(p = strchr(buf, '.')) = 0;
G_insert_commas(buf);
G_message(" total cells: %15s", buf);
fprintf(stderr, "\n");
if (type != AS_DEF_WINDOW) {
if (cellhd->north > def_wind.north) {
G_warning("north falls outside the default region");
ok = 0;
}
if (cellhd->south < def_wind.south) {
G_warning("south falls outside the default region");
ok = 0;
}
if (cellhd->proj != PROJECTION_LL) {
if (cellhd->east > def_wind.east) {
G_warning("east falls outside the default region");
ok = 0;
}
if (cellhd->west < def_wind.west) {
G_warning("west falls outside the default region");
ok = 0;
}
}
}
ASK:
fflush(stdin);
if (type == AS_CELLHD)
fprintf(stderr, "\nDo you accept this header? (y/n) [%s] > ",
ok ? "y" : "n");
else
fprintf(stderr, "\nDo you accept this region? (y/n) [%s] > ",
ok ? "y" : "n");
if (!G_gets(buf))
goto SHOW;
G_strip(buf);
switch (*buf) {
case 0:
break;
case 'y':
case 'Y':
ok = 1;
break;
case 'n':
case 'N':
ok = 0;
break;
default:
goto ASK;
}
if (ok)
return 0;
}
}
