+ Support of export to X3D for meshes

FreeCAD · Nov 25, 2013 · b7a9b77 · b7a9b77
1 parent cbbf3ee
commit b7a9b77
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Showing 4 changed files with 84 additions and 0 deletions.
diff --git a/src/Mod/Mesh/App/Core/MeshIO.cpp b/src/Mod/Mesh/App/Core/MeshIO.cpp
@@ -36,6 +36,7 @@
 #include <Base/FileInfo.h>
 #include <Base/Sequencer.h>
 #include <Base/Stream.h>
+#include <Base/Placement.h>
 #include <zipios++/gzipoutputstream.h>
 
 #include <math.h>
@@ -1431,6 +1432,9 @@ bool MeshOutput::SaveAny(const char* FileName, MeshIO::Format format) const
         else if (fi.hasExtension("iv")) {
             fileformat = MeshIO::IV;
         }
+        else if (fi.hasExtension("x3d")) {
+            fileformat = MeshIO::X3D;
+        }
         else if (fi.hasExtension("py")) {
             fileformat = MeshIO::PY;
         }
@@ -1497,6 +1501,11 @@ bool MeshOutput::SaveAny(const char* FileName, MeshIO::Format format) const
         if (!SaveInventor(str))
             throw Base::FileException("Export of Inventor mesh failed",FileName);
     }
+    else if (fileformat == MeshIO::X3D) {
+        // write file
+        if (!SaveX3D(str))
+            throw Base::FileException("Export of X3D failed",FileName);
+    }
     else if (fileformat == MeshIO::PY) {
         // write file
         if (!SavePython(str))
@@ -2039,6 +2048,76 @@ bool MeshOutput::SaveInventor (std::ostream &rstrOut) const
     return true;
 }
 
+/** Writes an X3D file. */
+bool MeshOutput::SaveX3D (std::ostream &out) const
+{
+    if ((!out) || (out.bad() == true) || (_rclMesh.CountFacets() == 0))
+        return false;
+
+    const MeshPointArray& pts = _rclMesh.GetPoints();
+    const MeshFacetArray& fts = _rclMesh.GetFacets();
+
+    Base::SequencerLauncher seq("Saving...", _rclMesh.CountFacets() + 1);
+    out.precision(6);
+    out.setf(std::ios::fixed | std::ios::showpoint);
+
+    // Header info
+    out << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
+    out << "<X3D profile=\"Immersive\" version=\"3.2\" xmlns:xsd="
+        << "\"http://www.w3.org/2001/XMLSchema-instance\" xsd:noNamespaceSchemaLocation="
+        << "\"http://www.web3d.org/specifications/x3d-3.2.xsd\">" << std::endl;
+    out << "  <head>" << std::endl
+        << "    <meta name=\"generator\" content=\"FreeCAD\"/>" << std::endl
+        << "    <meta name=\"author\" content=\"\"/> " << std::endl
+        << "    <meta name=\"company\" content=\"\"/>" << std::endl
+        << "  </head>" << std::endl;
+
+    // Beginning
+    out << "  <Scene>" << std::endl;
+    if (apply_transform) {
+        Base::Placement p(_transform);
+        const Base::Vector3d& v = p.getPosition();
+        const Base::Rotation& r = p.getRotation();
+        Base::Vector3d axis; double angle;
+        r.getValue(axis, angle);
+        out << "    <Transform "
+            << "translation='"
+            << v.x << " "
+            << v.y << " "
+            << v.z << "' "
+            << "rotation='"
+            << axis.x << " "
+            << axis.y << " "
+            << axis.z << " "
+            << angle << "'>" << std::endl;
+    }
+    else {
+        out << "    <Transform>" << std::endl;
+    }
+    out << "      <Shape>" << std::endl;
+
+    out << "        <IndexedFaceSet solid=\"false\" coordIndex=\"";
+    for (MeshFacetArray::_TConstIterator it = fts.begin(); it != fts.end(); ++it) {
+        out << it->_aulPoints[0] << " " << it->_aulPoints[1] << " " << it->_aulPoints[2] << " -1 ";
+    }
+    out << "\">" << std::endl;
+
+    out << "          <Coordinate point=\"";
+    for (MeshPointArray::_TConstIterator it = pts.begin(); it != pts.end(); ++it) {
+        out << it->x << " " << it->y << " " << it->z << ", ";
+    }
+    out << "\"/>" << std::endl;
+
+    // End
+    out << "        </IndexedFaceSet>" << std::endl
+        << "      </Shape>" << std::endl
+        << "    </Transform>" << std::endl
+        << "  </Scene>" << std::endl
+        << "</X3D>" << std::endl;
+
+    return true;
+}
+
 /** Writes a Nastran file. */
 bool MeshOutput::SaveNastran (std::ostream &rstrOut) const
 {

diff --git a/src/Mod/Mesh/App/Core/MeshIO.h b/src/Mod/Mesh/App/Core/MeshIO.h
@@ -47,6 +47,7 @@ namespace MeshIO {
         OBJ,
         OFF,
         IV,
+        X3D,
         VRML,
         WRZ,
         NAS,
@@ -153,6 +154,8 @@ class MeshExport MeshOutput
     bool SaveMeshNode (std::ostream &rstrIn);
     /** Writes an OpenInventor file. */
     bool SaveInventor (std::ostream &rstrOut) const;
+    /** Writes an X3D file. */
+    bool SaveX3D (std::ostream &rstrOut) const;
     /** Writes a VRML file. */
     bool SaveVRML (std::ostream &rstrOut, const App::Material &rclMat) const;
     /** Writes a Nastran file. */

diff --git a/src/Mod/Mesh/App/MeshPyImp.cpp b/src/Mod/Mesh/App/MeshPyImp.cpp
@@ -161,6 +161,7 @@ PyObject*  MeshPy::write(PyObject *args)
         ext["OBJ" ] = MeshCore::MeshIO::OBJ;
         ext["OFF" ] = MeshCore::MeshIO::OFF;
         ext["IV"  ] = MeshCore::MeshIO::IV;
+        ext["X3D" ] = MeshCore::MeshIO::X3D;
         ext["VRML"] = MeshCore::MeshIO::VRML;
         ext["WRL" ] = MeshCore::MeshIO::VRML;
         ext["WRZ" ] = MeshCore::MeshIO::WRZ;

diff --git a/src/Mod/Mesh/Gui/Command.cpp b/src/Mod/Mesh/Gui/Command.cpp
@@ -356,6 +356,7 @@ void CmdMeshExport::activated(int iMsg)
     ext << qMakePair<QString, QByteArray>(QObject::tr("Alias Mesh (*.obj)"), "OBJ");
     ext << qMakePair<QString, QByteArray>(QObject::tr("Object File Format (*.off)"), "OFF");
     ext << qMakePair<QString, QByteArray>(QObject::tr("Inventor V2.1 ascii (*.iv)"), "IV");
+    ext << qMakePair<QString, QByteArray>(QObject::tr("X3D Extensible 3D(*.x3d)"), "X3D");
     ext << qMakePair<QString, QByteArray>(QObject::tr("Standford Polygon (*.ply)"), "PLY");
     ext << qMakePair<QString, QByteArray>(QObject::tr("VRML V2.0 (*.wrl *.vrml)"), "VRML");
     ext << qMakePair<QString, QByteArray>(QObject::tr("Compressed VRML 2.0 (*.wrz)"), "WRZ");