Hi
I try to get started with Grass programming with the code example on p.264 from the progmangrass50.After getting help concerning the Gmakefile i got stuck now:
when executing the executable, it stops with (i guess it hangs)
B
(after some typing some returns)
=full_screen
full_screen : unknown error
Bfull_screen
ERROR: Current graphics frame not available
I tried to debug the error, but i get deeper and deeper into the source code:
framestack (with backtrace in gdb). somewhere in D_get_cur_wind it stops.
#0 D_get_cur_wind (name=0xbfffed70 "\200ý\034@") at window.c:153
#1 0x0804ac76 in D_setup (clear=1) at setup.c:32
#2 0x080498db in plot_raster_map (name=0x8062bf4 "elevation.dem",
mapset=0x8062bea "PERMANENT", overlay=0) at plotRasterMap.c:12
#3 0x080498ae in main (argc=1, argv=0x1) at ctest.c:18
#4 0x400b58ae in __libc_start_main () from /lib/libc.so.6
- I work with Grass 5.0.3 (compiled from source). Since I'm not root, i've installed grass on custom paths.
- I use tcsh. I've experimented to start Grass from bash, but this didn't help
- I've read smth about writing a graphics driver (p. 407 in progmangrass50), i tried to look a the mentioned files, e.g Gisbase/src.D/devices or GENERIC, but in my installation there not there. ???
I very much appreciate all advices Thanks dani
ps this is my config-statement and the config-info from GRASS (I doubt if i configured grass wrong)
./configure --prefix=/data/gis/nfp48/nfp48/ipodlas0.1/grass --with-bindir=/data/gis/nfp48/nfp48/ipodlas0.1/grass --without-gd --with-postgres --with-postgres-includes=/data/gis/nfp48/nfp48/ipodlas0.1/lib/postgresql-7.4.1/include/ --with-postgres-libs=/data/gis/nfp48/nfp48/ipodlas0.1/lib/postgresql-7.4.1/lib/ --with-odbc --with-odbc-includes=/data/gis/nfp48/nfp48/ipodlas0.1/lib/unixODBC-2.2.7/include/ --with-odbc-libs=/data/gis/nfp48/nfp48/ipodlas0.1/lib/unixODBC-2.2.7/lib --without-fftw --enable-socket | & tee compileOutput.log
Copying config.status to config.status.i686-pc-linux-gnu
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
Daniel Isenegger wrote:
I try to get started with Grass programming with the code example on
p.264 from the progmangrass50.
Can you provide a section number? Page numbers aren't much help; they
change whenever something is added or removed.
--
Glynn Clements <glynn.clements@virgin.net>
Glynn Clements schrieb:
Daniel Isenegger wrote:
I try to get started with Grass programming with the code example on p.264 from the progmangrass50.
Can you provide a section number? Page numbers aren't much help; they
change whenever something is added or removed.
Yes, of course:
16.6 Raster Graphics in 16. Display Graphics library
Daniel Isenegger wrote:
I try to get started with Grass programming with the code example on
p.264 from the progmangrass50.
I don't know how much has changed since the version which I'm looking
at, but the code in my version needed quite a few changes just to
compile.
After getting help concerning the
Gmakefile i got stuck now:
when executing the executable, it stops with (i guess it hangs)
B
(after some typing some returns)
=full_screen
full_screen : unknown error
Bfull_screen
ERROR: Current graphics frame not available
I tried to debug the error, but i get deeper and deeper into the source
code:
framestack (with backtrace in gdb). somewhere in D_get_cur_wind it stops.
#0 D_get_cur_wind (name=0xbfffed70 "\200ý\034@") at window.c:153
#1 0x0804ac76 in D_setup (clear=1) at setup.c:32
#2 0x080498db in plot_raster_map (name=0x8062bf4 "elevation.dem",
mapset=0x8062bea "PERMANENT", overlay=0) at plotRasterMap.c:12
#3 0x080498ae in main (argc=1, argv=0x1) at ctest.c:18
#4 0x400b58ae in __libc_start_main () from /lib/libc.so.6
AFAICT, this is because you haven't called R_open_driver().
One other problem with my version of the code is that the line:
if (D_cell_draw_setup(&top, &bottom, &left, &right))
should be:
if (D_cell_draw_setup(top, bottom, left, right))
I've attached a modified version which actually runs.
- I work with Grass 5.0.3 (compiled from source). Since I'm not root,
i've installed grass on custom paths.
- I use tcsh. I've experimented to start Grass from bash, but this
didn't help
- I've read smth about writing a graphics driver (p. 407 in
progmangrass50), i tried to look a the mentioned files, e.g
Gisbase/src.D/devices or GENERIC, but in my installation there not
there. ???
The driver code is in src/display/devices. Common code is in the lib
subdirectory; the driver-specific code is in the CELL, PNGdriver and
XDRIVER directories.
--
Glynn Clements <glynn.clements@virgin.net>
(attachments)
displaytest.c (1.18 KB)
On Thu, Jan 29, 2004 at 05:37:37PM +0000, Glynn Clements wrote:
Content-Description: message body text
Daniel Isenegger wrote:
> I try to get started with Grass programming with the code example on
> p.264 from the progmangrass50.
I don't know how much has changed since the version which I'm looking
at, but the code in my version needed quite a few changes just to
compile.
> After getting help concerning the
> Gmakefile i got stuck now:
> when executing the executable, it stops with (i guess it hangs)
> B
>
> (after some typing some returns)
>
> =full_screen
> full_screen : unknown error
> Bfull_screen
> ERROR: Current graphics frame not available
>
>
> I tried to debug the error, but i get deeper and deeper into the source
> code:
> framestack (with backtrace in gdb). somewhere in D_get_cur_wind it stops.
>
> #0 D_get_cur_wind (name=0xbfffed70 "\200ý\034@") at window.c:153
> #1 0x0804ac76 in D_setup (clear=1) at setup.c:32
> #2 0x080498db in plot_raster_map (name=0x8062bf4 "elevation.dem",
> mapset=0x8062bea "PERMANENT", overlay=0) at plotRasterMap.c:12
> #3 0x080498ae in main (argc=1, argv=0x1) at ctest.c:18
> #4 0x400b58ae in __libc_start_main () from /lib/libc.so.6
AFAICT, this is because you haven't called R_open_driver().
One other problem with my version of the code is that the line:
if (D_cell_draw_setup(&top, &bottom, &left, &right))
should be:
if (D_cell_draw_setup(top, bottom, left, right))
I've attached a modified version which actually runs.
I have updated the section in progman-CVS with that code version and
updated the online PDF as well.
Markus