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cs440-acg/ext/openexr/PyIlmBase/PyImath/PyImathLine.h

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+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 1998-2011, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// *       Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// *       Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// *       Neither the name of Industrial Light & Magic nor the names of
+// its contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission. 
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////
+
+#ifndef _PyImathLine_h_
+#define _PyImathLine_h_
+
+#include <Python.h>
+#include <boost/python.hpp>
+#include <ImathLine.h>
+#include <PyImath.h>
+
+
+namespace PyImath {
+
+template <class T> boost::python::class_<IMATH_NAMESPACE::Line3<T> > register_Line();
+
+//
+
+// Other code in the Zeno code base assumes the existance of a class with the
+// same name as the Imath class, and with static functions wrap() and
+// convert() to produce a PyImath object from an Imath object and vice-versa,
+// respectively.  The class Boost generates from the Imath class does not
+// have these properties, so we define a companion class here.
+// The template argument, T, is the element type (e.g.,float, double).
+
+template <class T>
+class L3 {
+  public:
+    static PyObject *	wrap (const IMATH_NAMESPACE::Line3<T> &l);
+    static int		convert (PyObject *p, IMATH_NAMESPACE::Line3<T> *l);
+};
+
+template <class T>
+PyObject *
+L3<T>::wrap (const IMATH_NAMESPACE::Line3<T> &l)
+{
+    typename boost::python::return_by_value::apply < IMATH_NAMESPACE::Line3<T> >::type converter;
+    PyObject *p = converter (l);
+    return p;
+}
+
+template <class T>
+int
+L3<T>::convert (PyObject *p, IMATH_NAMESPACE::Line3<T> *l)
+{
+    boost::python::extract <IMATH_NAMESPACE::Line3f> extractorLf (p);
+    if (extractorLf.check())
+    {
+        IMATH_NAMESPACE::Line3f e = extractorLf();
+        l->pos.setValue (e.pos);
+        l->dir.setValue (e.dir);
+        return 1;
+    }
+
+    boost::python::extract <IMATH_NAMESPACE::Line3d> extractorLd (p);
+    if (extractorLd.check())
+    {
+        IMATH_NAMESPACE::Line3d e = extractorLd();
+        l->pos.setValue (e.pos);
+        l->dir.setValue (e.dir);
+        return 1;
+    }
+
+    return 0;
+}
+
+typedef L3<float>	Line3f;
+typedef L3<double>	Line3d;
+
+}
+
+#endif