[Plib-cvs] plib/src/sg sg.cxx,1.40,1.41

[Eric L. <smo...@us...>]

Update of /cvsroot/plib/plib/src/sg
In directory sc8-pr-cvs1:/tmp/cvs-serv15955

Modified Files:
	sg.cxx 
Log Message:
Bug fix to function: SGfloat sgDistSquaredToLineVec3(constsgLine3, const sgVec3)
Fix is based on diff provided by John Fay.

Index: sg.cxx
===================================================================
RCS file: /cvsroot/plib/plib/src/sg/sg.cxx,v
retrieving revision 1.40
retrieving revision 1.41
diff -u -d -r1.40 -r1.41
--- sg.cxx	12 Nov 2003 12:39:16 -0000	1.40
+++ sg.cxx	20 Jan 2004 22:12:15 -0000	1.41
@@ -848,9 +848,11 @@
 SGfloat sgDistSquaredToLineVec3 ( const sgLine3 line, const sgVec3 pnt )
 {
   sgVec3 r ; sgSubVec3 ( r, pnt, line.point_on_line ) ;
+
+  float projectedDistance = sgScalarProductVec3(r,line.direction_vector);
  
   return sgScalarProductVec3 ( r, r ) -
-         sgScalarProductVec3 ( r, line.direction_vector ) ;
+         projectedDistance * projectedDistance; 
 }