[GRASSLIST:2290] example plot_raster_map aus progmangrass (p.264)

[Daniel Isenegger]

Hi there,

I tried to implement the example plot_raster_map aus progmangrass 
(p.264) to get used to the C-programming in GRASS.
I use a source code installation of grass 5.0.3 on a linux Suse 8.2

After several iteration of the Gmakefile and the plot_raster_map I 
allways get a hell of an error stack which starts with:

  ./bin/gmake5
   SRC     = 
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src
   CMD     = 
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/CMD
   UNUSED  = 
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/unused
   HEADER  = head.i686-pc-linux-gnu
   ARCH    = i686-pc-linux-gnu
   GISBASE = 
/home/gis/disen/links/ipodlas0.1/grass/grass5sources/grass-5.0.3/dist.i686-pc-linux-gnu
   VERSION = 5.0.3 October 2003
#################################################################
/data/gis/nfp48/nfp48/ipodlas0.1/grass
   make -f OBJ.i686-pc-linux-gnu/make.rules

gcc 
-I/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/include 
-g -O2   -I 
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/include 
  -c plotRasterMap.c -o OBJ.i686-pc-linux-gnu/plotRasterMap.o
gcc 
-L/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/libes/LIB.i686-pc-linux-gnu 
  -o ctest OBJ.i686-pc-linux-gnu/ctest.o 
OBJ.i686-pc-linux-gnu/plotRasterMap.o -lgis   -lraster -ldisplay -lI 
-lvask  -lz
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/libes/LIB.i686-pc-linux-gnu/libgis.a(color_range.o)(.text+0xc2): 
In function `G_get_color_range':
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/libes/gis/color_range.c:46: 
undefined reference to `floor'/





the test code looks like this:
/* Versuch: rastermap von Grass aus zu zeichnen */

#include "gis.h"    // Grass-lib einbinden
plot_raster_map(char *name,char *mapset,int overlay) {

        struct Colors colors;
        CELL *raster;
        int row, fd, top, bottom, left, right;
        /* perform plotting setup */
        D_setup(!overlay);
        D_get_screen_window(&top, &bottom, &left, &right);
        if (D_cell_draw_setup(&top, &bottom, &left, &right)) //ERROR
        raster = G_allocate_cell_buf( );
        /* open raster map, read and set the colors */

        // neu eingefuegt
        int init = G_init_colors(&colors);
        int color_table = G_read_colors(name, mapset,&colors);

        if((fd = G_open_cell_old (name, mapset)) < 0) // ERROR
      if(G_read_colors (name, mapset, &colors) < 0) //ERROR
        D_set_colors(&colors);
        /* plot */
        D_set_overlay_mode(overlay);
        for(row=0; row >= 0; ) {
      if (G_get_map_row(fd, raster, row) < 0) //ERROR
      row = D_draw_cell(row, raster, &colors);
        }
        G_close_cell(fd);
        G_free_colors(&colors);
        G_free(raster);
      }







the Gmakefile like this:
HOME=$(BIN_CMD)

# include der dirs, zb hier ist gis.h
EXTRA_CFLAGS= -I 
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3/src/include

# einbinden der libs: e.g. D_ are in DISPLAYLIB
LIBES= $(GISLIB) $(RASTERLIB) $(DISPLAYLIB) $(IMAGERYLIB) $(VASKLIB) $(VASK)
DEPLIBES= $(DEPIMAGERYLIB) $(DEPGISLIB) $(DEPVASKLIB) $(DEPVASK)

OBJ = ctest.o plotRasterMap.o
ctest: $(OBJ) $(LIBES) $(DEPLIBS)
     $(CC) $(LDFLAGS) -o $@ $(OBJ) $(LIBES) $(XDRLIB)

$(LIST): global.h

$(GISLIB): #in case of library changes
$(RASTERLIB):
$(DISPLAYLIB): #muss auch hier aufgefuehrt sein, wenn unter LIBES 
aufgefuehrt
$(LIBES):
$(DEPLIBS):


did forget to include a module?
can anybody tell me how to go on?

Thanxs for any advice                Dani isenegger







ps the status after the installation was;

GRASS is now configured for i686-pc-linux-gnu

   Source directory: 
/data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5sources/grass-5.0.3
   Build directory: 
/home/gis/disen/links/ipodlas0.1/grass/grass5sources/grass-5.0.3
   Installation directory:    /data/gis/nfp48/nfp48/ipodlas0.1/grass/grass5
   C compiler:                gcc -g -O2
   FORTRAN compiler:          g77

   NVIZ:                       yes

   X11 support:                yes
   DBM support:                no
   JPEG support:               yes
   TIFF support:               yes
   PNG support:                yes
   GD support:                 no
   Tcl/Tk support:             yes
   PostgreSQL support:         yes
   OpenGL(R) support:          yes
   ODBC support:               yes
   FFTW support:               no
   BLAS support:               no
   LAPACK support:             no
   Motif support:              no
   FreeType support:           no
   GLw support:                no
   NLS support:                no
   Readline support:           no