[GRASS5] [bug #3874] (grass) Strange comportment of NVIZ after adding a surface.

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this bug's URL: http://intevation.de/rt/webrt?serial_num=3874
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Subject: Strange comportment of NVIZ after adding a surface.

Platform: GNU/Linux/i386
grass obtained from: CVS
grass binary for platform: Compiled from Sources
GRASS Version: GRASS 6.1.cvs checked out at 20050112

Hello,

My english is quite bad...

After loading a state in NVIZ, only one of the loaded surfaces is available in the "surface" panel of NVIZ. A small change in "panel_surf.tcl" file seems to fix that:
--- panel_surf.tcl      2005-12-01 09:42:54.000000000 +1000
+++ panel_surf.tcl      2005-12-01 09:43:27.000000000 +1000
@@ -258,6 +258,8 @@

 # Load procedure for loading state of Nviz
 proc Nviz_surf_load { file_hook } {
+    Nviz_surf_reset
+
     # Read the number of surfaces saved in this state file
     gets $file_hook num_surfs

After adding a surface in the "surface" panel, when the "RESET" button is pressed in the "main" panel the "exag" and "height" values are wrong. A small change in the "exag.c" file seems to fix that:
--- exag.c      2005-12-01 09:42:40.000000000 +1000
+++ exag.c      2005-12-01 09:43:17.000000000 +1000
@@ -67,7 +67,7 @@
     exag = 0.0;
     for (i = 0; i < nsurfs; i++) {
        if (GS_get_exag_guess(surf_list[i], &texag) > -1) {
-           if (texag)
+           if (texag && texag <= 10)
                exag = (texag > exag) ? texag : exag;
        }
     }
@@ -104,7 +104,7 @@
        exag = 0.0;
        for (i = 0; i < nsurfs; i++) {
            if (GS_get_exag_guess(surf_list[i], &texag) > -1)
-               if (texag)
+               if (texag && texag <= 10)
                    exag = texag > exag ? texag : exag;
        }
        if (exag == 0.0)

Those small changes are maybe not the right way to fix those problems, but I think that they can help to find out how to fix them.

Regards,

Stephane.

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