[brlcad-commits] SF.net SVN: brlcad: [29960] brlcad/trunk/src/proc-db

[<br...@us...>]

Revision: 29960
          http://brlcad.svn.sourceforge.net/brlcad/?rev=29960&view=rev
Author:   brlcad
Date:     2008-01-16 13:03:23 -0800 (Wed, 16 Jan 2008)

Log Message:
-----------
add an example of creating geometry using basic shell scripting.  the example shows several ways for passing modeling commands to mged, creates the .g geometry file, sets material properties, and renders the model to an image.  don't install it, just an example.

Modified Paths:
--------------
    brlcad/trunk/src/proc-db/Makefile.am

Added Paths:
-----------
    brlcad/trunk/src/proc-db/sgi.sh

Modified: brlcad/trunk/src/proc-db/Makefile.am
===================================================================
--- brlcad/trunk/src/proc-db/Makefile.am	2008-01-16 18:26:42 UTC (rev 29959)
+++ brlcad/trunk/src/proc-db/Makefile.am	2008-01-16 21:03:23 UTC (rev 29960)
@@ -56,13 +56,8 @@
 	${OPENNURBS}
 
 brickwall_SOURCES = brickwall.c
-brickwall_LDADD = ${WDB}
-
 clutter_SOURCES = clutter.c common.c
-
 contours_SOURCES = contours.c
-contours_LDADD = ${WDB}
-
 fence_SOURCES = fence.c
 globe_SOURCES = globe.c
 kurt_SOURCES = kurt.c
@@ -96,7 +91,9 @@
 
 man_MANS = picket_fence.1
 
-EXTRA_DIST = $(man_MANS)
+EXTRA_DIST = \
+	$(man_MANS) \
+	sgi.sh
 
 include $(top_srcdir)/misc/Makefile.defs
 

Added: brlcad/trunk/src/proc-db/sgi.sh
===================================================================
--- brlcad/trunk/src/proc-db/sgi.sh	                        (rev 0)
+++ brlcad/trunk/src/proc-db/sgi.sh	2008-01-16 21:03:23 UTC (rev 29960)
@@ -0,0 +1,100 @@
+#!/bin/sh
+#                          s g i . s h
+#
+# Create and render the SGI cube (tm) logo as BRL-CAD geometry.
+# The SGI cube is a registered trademark of SGI.
+#
+# Author -
+#   Christopher Sean Morrison
+#
+# This script is in the public domain.
+#
+#####################################################################
+
+SGI="`basename $0`"
+rm -f $SGI.*
+
+# cube dimensions
+i=1000 ; j=700 ; radius=125
+
+# starting position
+x=0 ; y=0 ; z=0
+
+# functions to create geometry for each direction of the cube's path
+right ( ) {
+    old=$x
+    x=$((old + $2))
+    mged -c $SGI.g in rcc.$1 rcc $old $y $z $((x - old)) 0 0 $radius
+    mged -c $SGI.g in sph.$1 sph $x $y $z $radius
+}
+left ( ) {
+    old=$x
+    x=$((old - $2))
+    mged -c $SGI.g in rcc.$1 rcc $old $y $z $((x - old)) 0 0 $radius
+    mged -c $SGI.g in sph.$1 sph $x $y $z $radius
+}
+forward ( ) {
+    old=$y
+    y=$((old + $2))
+    mged -c $SGI.g in rcc.$1 rcc $x $old $z 0 $((y - old)) 0 $radius
+    mged -c $SGI.g in sph.$1 sph $x $y $z $radius
+}
+back ( ) {
+    old=$y
+    y=$((old - $2))
+    mged -c $SGI.g in rcc.$1 rcc $x $old $z 0 $((y - old)) 0 $radius
+    mged -c $SGI.g in sph.$1 sph $x $y $z $radius
+}
+up ( ) {
+    old=$z
+    z=$((old + $2))
+    mged -c $SGI.g in rcc.$1 rcc $x $y $old 0 0 $((z - old)) $radius
+    mged -c $SGI.g in sph.$1 sph $x $y $z $radius
+}
+down ( ) {
+    old=$z
+    z=$((old - $2))
+    mged -c $SGI.g in rcc.$1 rcc $x $y $old 0 0 $((z - old)) $radius
+    mged -c $SGI.g in sph.$1 sph $x $y $z $radius
+}
+
+###########################
+echo "Creating the cube..."
+
+forward	100 $i
+left	101 $j
+down	102 $i
+right	103 $i
+up	104 $j
+back	105 $i
+down	106 $i
+forward	107 $j
+left	108 $i
+back	109 $i
+right	110 $j
+up	111 $i
+left	112 $i
+down	113 $j
+forward	114 $i
+up	115 $i
+back	116 $j
+right	117 $i
+
+mged -c $SGI.g g cube.c rcc.* sph.*
+mged -c $SGI.g r cube.r u cube.c
+mged -c $SGI.g mater cube.r \"cook re=.8 di=1 sp=1 ri=10\" 250 250 250 0
+
+###########################
+echo "Rendering the cube..."
+
+cat <<EOF | mged -c $SGI.g
+B cube.r
+ae 135 -40 180
+saveview $SGI.rt
+EOF
+
+./$SGI.rt -s1024
+pix-fb -s1024 $SGI.rt.pix
+
+rm -f $SGI.rt* && mv $SGI.g sgi.g
+echo "The SGI cube is in the sgi.g BRL-CAD geometry database file."


Property changes on: brlcad/trunk/src/proc-db/sgi.sh
___________________________________________________________________
Name: svn:executable
   + *


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