editbone.transform(matrix) function, requested by Cessen.

Also added matrix.median_scale attribute to get the average scale from the matrix, use for scaling bone envalopes.

1 files changed, 13 insertions, 0 deletions

diff --git a/release/scripts/modules/bpy_types.py b/release/scripts/modules/bpy_types.py
index d90e7ab3597..d890882b77c 100644
--- a/release/scripts/modules/bpy_types.py
+++ b/release/scripts/modules/bpy_types.py
@@ -198,6 +198,19 @@ class EditBone(StructRNA, _GenericBone):
         self.tail = self.head + vec
         self.roll = other.roll
 
+    def transform(self, matrix):
+        """
+        Transform the the bones head, tail, roll and envalope (when the matrix has a scale component).
+        Expects a 4x4 or 3x3 matrix.
+        """
+        from Mathutils import Vector
+        z_vec = self.matrix.rotationPart() * Vector(0.0, 0.0, 1.0)
+        self.tail = matrix * self.tail
+        self.head = matrix * self.head
+        scalar = matrix.median_scale
+        self.head_radius *= scalar
+        self.tail_radius *= scalar
+        self.align_roll(matrix * z_vec)
 
 def ord_ind(i1, i2):
     if i1 < i2: