[Gzz-commits] gzz/gzz/gfx/gl GLVobCoorder.java

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    gzz
Changes by:     Tuomas J. Lukka <address@hidden>        02/12/06 06:44:06

Modified files:
        gzz/gfx/gl     : GLVobCoorder.java 

Log message:
        Document nadir for mudyc

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/gzz/gzz/gfx/gl/GLVobCoorder.java.diff?tr1=1.61&tr2=1.62&r1=text&r2=text

Patches:
Index: gzz/gzz/gfx/gl/GLVobCoorder.java
diff -u gzz/gzz/gfx/gl/GLVobCoorder.java:1.61 
gzz/gzz/gfx/gl/GLVobCoorder.java:1.62
--- gzz/gzz/gfx/gl/GLVobCoorder.java:1.61       Thu Dec  5 05:57:34 2002
+++ gzz/gzz/gfx/gl/GLVobCoorder.java    Fri Dec  6 06:44:05 2002
@@ -31,7 +31,7 @@
 import gzz.client.gl.*;
 
 public class GLVobCoorder extends AffineVobCoorder {
-public static final String rcsid = "$Id: GLVobCoorder.java,v 1.61 2002/12/05 
10:57:34 tjl Exp $";
+public static final String rcsid = "$Id: GLVobCoorder.java,v 1.62 2002/12/06 
11:44:05 tjl Exp $";
     public static boolean dbg = false;
     private static void pa(String s) { System.err.println(s); }
 
@@ -237,6 +237,19 @@
        return inds[cs + 2];
     }
 
+    /** Make a nadir rotation of into towards nadir.
+     * That is, at each moment of time, nadirOrigin(a, b)
+     * is equivalent to rotate(a, X) for some angle.
+     * The angle is determined so that the
+     * positive y direction from (0,0) of the rotated
+     * coordinate system points towards the origin of the
+     * nadir coordinate system.
+     * @param into The coordinate system for which a rotated
+     *                         child is to be constructed.
+     * @param nadir The coordinate system towards whose origin
+     *                 the positive y coordinate axis of the rotated CS
+     *                 should point.
+     */
     public int nadirOrigin(int into, int nadir) {
        int paramInd = nfloats;
        nfloats += 0;