From Neil Salter, added osgSim::SphereSegment and osgSim::ScalarBar, and

osgspheresegment and osgscalarbar, and osgsimulation examples.

include/osgSim/ColorRange

@@ -0,0 +1,57 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
+ *
+ * This library is open source and may be redistributed and/or modified under
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * OpenSceneGraph Public License for more details.
+*/
+
+#ifndef OSGSIM_COLORRANGE
+#define OSGSIM_COLORRANGE 1
+
+#include <osgSim/Export>
+
+#include <osgSim/ScalarsToColors>
+#include <vector>
+
+namespace osgSim
+{
+/**
+ColorRange is a ScalarsToColors object to define a color spectrum
+for a scalar range. An optional vector of colors may be passed in at
+construction time. The range of colors will be mapped to the scalar range,
+and interpolation between the colors will be performed as necessary.
+By default, the color range will run Red-Yellow-Green-Cyan-Blue.
+*/
+class OSGSIM_EXPORT ColorRange: public ScalarsToColors
+{
+public:
+
+    /** Constructor for a ColorRange
+	@param min      minimum scalar value
+	@param max      maximum scalar value
+	@param colors   optional range of colors, defaulting to Red-Yellow-Green-Blue-Cyan
+	*/
+    ColorRange(float min, float max, const std::vector<osg::Vec4>& colors = std::vector<osg::Vec4>());
+
+	/** Set the range of colors. */
+    void setColors(const std::vector<osg::Vec4>& colors);
+
+	/** Get the color for a given scalar value. */
+    osg::Vec4 getColor(float scalar) const;
+
+private:
+
+	// Default assignment and copy construction are OK.
+
+    std::vector<osg::Vec4> _colors;
+};
+
+}
+
+#endif