Wrap objects' transformation matricies in C++.

3 files changed, 18 insertions, 1 deletions

diff --git a/libdimensionxx/dimensionxx/object.hpp b/libdimensionxx/dimensionxx/object.hpp
index 6eaca83..af9bbcd 100644
--- a/libdimensionxx/dimensionxx/object.hpp
+++ b/libdimensionxx/dimensionxx/object.hpp
@@ -32,6 +32,11 @@ namespace Dimension
     // No-op, made pure virtual
     virtual ~Object() = 0;
 
+    // Get/set the transformation matrix
+    Matrix trans();
+    void trans(const Matrix& trans);
+
+    // Object callbacks
     virtual Array<double> intersections(const Line& l);
     virtual bool inside(const Vector& point);
 
diff --git a/libdimensionxx/object.cpp b/libdimensionxx/object.cpp
index 61a887c..7d66206 100644
--- a/libdimensionxx/object.cpp
+++ b/libdimensionxx/object.cpp
@@ -26,6 +26,18 @@ namespace Dimension
   Object::~Object()
   { }
 
+  Matrix
+  Object::trans()
+  {
+    return Matrix(m_object->trans);
+  }
+
+  void
+  Object::trans(const Matrix& trans)
+  {
+    m_object->trans = trans.dmnsn();
+  }
+
   // Intersection list for the line l
   Array<double>
   Object::intersections(const Line& l)
diff --git a/libdimensionxx/objects.cpp b/libdimensionxx/objects.cpp
index 1a63494..1b78731 100644
--- a/libdimensionxx/objects.cpp
+++ b/libdimensionxx/objects.cpp
@@ -42,7 +42,7 @@ namespace Dimension
     : Object(dmnsn_new_cube())
   {
     if (!m_object) {
-      throw Dimension_Error("Failed to allocate sphere.");
+      throw Dimension_Error("Failed to allocate cube.");
     }
   }