From 26e741a3e8f1c83e717318f69ff02eed9b0ef6de Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 4 Apr 2011 16:46:40 +0000
Subject: [PATCH] Determine the border of tracktypes with custom object

---
 source/3d/tracktype.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/source/3d/tracktype.cpp b/source/3d/tracktype.cpp
index 47c85ab..a60c9a6 100644
--- a/source/3d/tracktype.cpp
+++ b/source/3d/tracktype.cpp
@@ -95,7 +95,17 @@ TrackType3D::TrackType3D(Catalogue3D &cat3d, const TrackType &tt):
 	if(!obj_name.empty())
 	{
 		object = catalogue.get<GL::Object>(obj_name);
-		// XXX border
+		const GL::Mesh *m = object->get_mesh();
+		const GL::VertexArray &vertices = m->get_vertices();
+		int vertex_offs = vertices.get_format().offset(GL::VERTEX2);
+		if(vertex_offs>=0)
+		{
+			for(unsigned i=0; i<vertices.size(); ++i)
+			{
+				const float *v = vertices[i]+vertex_offs;
+				border.push_back(Vector(v[0], v[1]));
+			}
+		}
 	}
 	else
 	{
-- 
2.43.0