Array modifier patch by Ben Batt! (#3788)

This modifier allows to make arrays of meshes, with multiple offset types:
- constant offset
- offset relative to object width
- offset with scale and rotation based on another object

The number of duplicates can be computed based on a fixed count, fixed length
or length of a curve. Duplicate vertices can be automatically merged.

Nice docs and example files available in the wiki:
http://mediawiki.blender.org/index.php/BlenderDev/ArrayModifier

2 files changed, 17 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_arithb.h b/source/blender/blenlib/BLI_arithb.h
index fedcefcd8b8..fcb72f7d8f0 100644
--- a/source/blender/blenlib/BLI_arithb.h
+++ b/source/blender/blenlib/BLI_arithb.h
@@ -490,6 +490,12 @@ VecMulf(
 	float *v1, 
 	float f
 );
+	int
+VecLenCompare(
+	float *v1,
+	float *v2,
+	float limit
+);
 	int 
 VecCompare(
 	float *v1, 
diff --git a/source/blender/blenlib/intern/arithb.c b/source/blender/blenlib/intern/arithb.c
index 0cc98a3b429..67f3cca92f3 100644
--- a/source/blender/blenlib/intern/arithb.c
+++ b/source/blender/blenlib/intern/arithb.c
@@ -1814,6 +1814,17 @@ void VecMulf(float *v1, float f)
 	v1[2]*= f;
 }
 
+int VecLenCompare(float *v1, float *v2, float limit)
+{
+    float x,y,z;
+
+	x=v1[0]-v2[0];
+	y=v1[1]-v2[1];
+	z=v1[2]-v2[2];
+
+	return ((x*x + y*y + z*z) < (limit*limit));
+}
+
 int VecCompare( float *v1, float *v2, float limit)
 {
 	if( fabs(v1[0]-v2[0])<limit )