here is part of my program: ----------------------------------------------
char *name="eco";
struct Colors colors;
CELL *raster;
int row,fd,top,bottom,left,right;
/*perform plotting setup*/
D_setup(0);
/*region has been already asigned*/
D_get_screen_window(&top,&bottom,&left,&right);
D_cell_draw_setup(&top,&bottom,&left,&right);
raster=G_malloc_cell_buf();
/*open raster map,read and set the colors*/
fd=G_open_cell_old(name,G_mapset());
G_read_colors(name,G_mapset(),&colors);
D_set_colors(&colors);
/*plot*/ D_set_overlay_mode(1);
for(row=0;row>=0;)
{ G_get_map_row(fd,raster,row);
row=D_draw_cell(row,raster,&colors);
}
G_close_cell(fd);
G_free_colors(&colors);
}
-------------------------------------------------
In fact,in the for circle,when execute line "row=
......",row can't get the right value but -1,what is
wrong?send me e_mail.
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