From 28aba7f1a649abd41bf82db97cad8ec8da042c56 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Thu, 6 Nov 2003 04:51:08 +0000
Subject: [PATCH] add clear_transform

---
 panda/src/pgraph/nodePath.I | 22 ++++++++++++++++++++++
 panda/src/pgraph/nodePath.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/panda/src/pgraph/nodePath.I b/panda/src/pgraph/nodePath.I
index 12a23ec683..20393a4f86 100644
--- a/panda/src/pgraph/nodePath.I
+++ b/panda/src/pgraph/nodePath.I
@@ -458,6 +458,16 @@ get_transform() const {
   return node()->get_transform();
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: NodePath::clear_transform
+//       Access: Published
+//  Description: Sets the transform object on this node to identity.
+////////////////////////////////////////////////////////////////////
+INLINE void NodePath::
+clear_transform() {
+  set_transform(TransformState::make_identity());
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: NodePath::set_transform
 //       Access: Published
@@ -469,6 +479,18 @@ set_transform(const TransformState *transform) {
   node()->set_transform(transform);
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: NodePath::clear_transform
+//       Access: Published
+//  Description: Sets the transform object on this node to identity,
+//               relative to the other node.  This effectively places
+//               this node at the same position as the other node.
+////////////////////////////////////////////////////////////////////
+INLINE void NodePath::
+clear_transform(const NodePath &other) {
+  set_transform(other, TransformState::make_identity());
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: NodePath::get_net_transform
 //       Access: Published
diff --git a/panda/src/pgraph/nodePath.h b/panda/src/pgraph/nodePath.h
index ba5a0f0d7f..756ba068c6 100644
--- a/panda/src/pgraph/nodePath.h
+++ b/panda/src/pgraph/nodePath.h
@@ -238,8 +238,10 @@ PUBLISHED:
   INLINE CPT(RenderState) get_net_state() const;
 
   INLINE const TransformState *get_transform() const;
+  INLINE void clear_transform();
   INLINE void set_transform(const TransformState *transform);
   CPT(TransformState) get_transform(const NodePath &other) const;
+  INLINE void clear_transform(const NodePath &other);
   void set_transform(const NodePath &other, const TransformState *transform);
   INLINE CPT(TransformState) get_net_transform() const;