From Paul de Repentinguy, DXF loader plugin. Ported to Linux by Robert Osfield.

src/osgPlugins/dxf/dxfTable.cpp

@@ -0,0 +1,46 @@
+/* dxfReader for OpenSceneGraph  Copyright (C) 2005 by GraphArchitecture ( grapharchitecture.com )
+ * Programmed by Paul de Repentigny <pdr@grapharchitecture.com>
+ * 
+ * OpenSceneGraph is (C) 2004 Robert Osfield
+ * 
+ * This library is provided as-is, without support of any kind.
+ *
+ * Read DXF docs or OSG docs for any related questions.
+ * 
+ * You may contact the author if you have suggestions/corrections/enhancements.
+ */
+#include "dxfTable.h"
+#include "dxfFile.h"
+#include "codeValue.h"
+
+
+void dxfLayer::assign(dxfFile* dxf, codeValue& cv) 
+{
+	switch (cv._groupCode) {
+		case 2:
+			_name = cv._string;
+			break;
+		case 62:
+			_color = cv._short;
+			if ((short)_color < 0) _frozen = true;
+			break;
+		case 70:
+			_frozen = (bool)(cv._short & 1);
+			break;
+	}
+}
+
+void dxfLayerTable::assign(dxfFile* dxf, codeValue& cv) 
+{
+	std::string s = cv._string;
+	if (cv._groupCode == 0 ) {
+		if (_currentLayer.get()) {
+			_layers[_currentLayer->getName()] = _currentLayer.get();
+		}
+		if (s == "LAYER") {
+			_currentLayer = new dxfLayer;
+		} // otherwise it's the close call from ENDTAB
+	} else if (_currentLayer.get()) {
+		_currentLayer->assign(dxf, cv);
+	}
+}