[Teem-commit] SF.net SVN: teem:[7137] teem/trunk/src/seek

[<kin...@us...>]

Revision: 7137
          http://sourceforge.net/p/teem/code/7137
Author:   kindlmann
Date:     2023-07-22 04:00:04 +0000 (Sat, 22 Jul 2023)
Log Message:
-----------
API CHANGE: (oops didn't commit all files last time) adding another field to seekContext, to record the average (world-space) gradient magnitude, over the vertices in an isosurface (when there isn't a gageContext), with the hope that it is useful for some signed distance field computations. Also noting that Thomas Schultz commited some work to this file (other files in seek have a similar copyright attribution)

Modified Paths:
--------------
    teem/trunk/src/seek/methodsSeek.c
    teem/trunk/src/seek/seek.h

Modified: teem/trunk/src/seek/methodsSeek.c
===================================================================
--- teem/trunk/src/seek/methodsSeek.c	2023-07-22 03:55:59 UTC (rev 7136)
+++ teem/trunk/src/seek/methodsSeek.c	2023-07-22 04:00:04 UTC (rev 7137)
@@ -122,6 +122,7 @@
     sctx->faceNum = 0;
     sctx->strengthSeenMax = AIR_NAN;
     sctx->time = AIR_NAN;
+    sctx->gradMagAvg = AIR_NAN;
   }
   return sctx;
 }

Modified: teem/trunk/src/seek/seek.h
===================================================================
--- teem/trunk/src/seek/seek.h	2023-07-22 03:55:59 UTC (rev 7136)
+++ teem/trunk/src/seek/seek.h	2023-07-22 04:00:04 UTC (rev 7137)
@@ -184,6 +184,10 @@
   double strengthSeenMax;                /* in case strength was used, the maximum
                                             vertex strength seen (from probing slabs) */
   double time;                           /* time for extraction */
+  double gradMagAvg; /* in case per-vertex gradients were computed (such as:
+                        isocontouring without a gageContext), then the average gradient
+                        magnitude over all the verts (useful for some computations
+                        involving signed distance functions) */
 } seekContext;
 
 /* enumsSeek.c */

This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.