[ADD] first work on a tensor glyph class using geometry

src/kernel/WModuleFactory.cpp

@@ -54,6 +54,7 @@
 #include "../modules/triangleMeshRenderer/WMTriangleMeshRenderer.h"
 #include "../modules/writeNIfTI/WMWriteNIfTI.h"
 #include "../modules/vectorPlot/WMVectorPlot.h"
+#include "../modules/geometryGlyphs/WMGeometryGlyphs.h"
 #include "WModuleFactory.h"
 #include "exceptions/WPrototypeNotUnique.h"
 #include "exceptions/WPrototypeUnknown.h"
@@ -108,6 +109,7 @@ void WModuleFactory::load()
     m_prototypes.insert( boost::shared_ptr< WModule >( new WMSurfaceParticles() ) );
     m_prototypes.insert( boost::shared_ptr< WModule >( new WMClusterSlicer() ) );
     m_prototypes.insert( boost::shared_ptr< WModule >( new WMVectorPlot() ) );
+    m_prototypes.insert( boost::shared_ptr< WModule >( new WMGeometryGlyphs() ) );
 
     lock.unlock();
 

src/modules/geometryGlyphs/WMGeometryGlyphs.h

+//---------------------------------------------------------------------------
+//
+// Project: OpenWalnut ( http://www.openwalnut.org )
+//
+// Copyright 2009 OpenWalnut Community, BSV-Leipzig and CNCF-CBS
+// For more information see http://www.openwalnut.org/copying
+//
+// This file is part of OpenWalnut.
+//
+// OpenWalnut is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// OpenWalnut 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
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
+//
+//---------------------------------------------------------------------------
+
+#ifndef WMGEOMETRYGLYPHS_H
+#define WMGEOMETRYGLYPHS_H
+
+#include <string>
+
+#include <osg/Node>
+#include <osg/Geode>
+#include <osg/Uniform>
+
+#include "../../kernel/WModule.h"
+#include "../../kernel/WModuleInputData.h"
+#include "../../kernel/WModuleOutputData.h"
+
+#include "../../dataHandler/WDataSetSingle.h"
+#include "../../dataHandler/WDataSetVector.h"
+
+#include "../../graphicsEngine/WGEGroupNode.h"
+#include "../../graphicsEngine/WTriangleMesh2.h"
+
+/** 
+ * Someone should add some documentation here.
+ * Probably the best person would be the module's
+ * creator, i.e. "schurade".
+ *
+ * This is only an empty template for a new module. For
+ * an example module containing many interesting concepts
+ * and extensive documentation have a look at "src/modules/template"
+ *
+ * \ingroup modules
+ */
+class WMGeometryGlyphs: public WModule
+{
+public:
+
+    /**
+     *
+     */
+    WMGeometryGlyphs();
+
+    /**
+     *
+     */
+    virtual ~WMGeometryGlyphs();
+
+    /**
+     * Gives back the name of this module.
+     * \return the module's name.
+     */
+    virtual const std::string getName() const;
+
+    /**
+     * Gives back a description of this module.
+     * \return description to module.
+     */
+    virtual const std::string getDescription() const;
+
+    /**
+     * Due to the prototype design pattern used to build modules, this method returns a new instance of this method. NOTE: it
+     * should never be initialized or modified in some other way. A simple new instance is required.
+     *
+     * \return the prototype used to create every module in OpenWalnut.
+     */
+    virtual boost::shared_ptr< WModule > factory() const;
+
+protected:
+
+    /**
+     * Entry point after loading the module. Runs in separate thread.
+     */
+    virtual void moduleMain();
+
+    /**
+     * Initialize the connectors this module is using.
+     */
+    virtual void connectors();
+
+    /**
+     * Initialize the properties for this module.
+     */
+    virtual void properties();
+
+
+private:
+    void prepareGlyphes(); //!< initial creation of glyphs
+
+    /**
+     * render function
+     * \param mesh
+     */
+    void renderMesh( boost::shared_ptr< WTriangleMesh2 > mesh );
+
+    WPropBool m_useTextureProp; //!< Property indicating whether to use texturing with scalar data sets.
+
+    osg::ref_ptr< WGEGroupNode > m_moduleNode; //!< Pointer to the modules group node. We need it to be able to update it when callback is invoked.
+
+    osg::ref_ptr< osg::Geode > m_outputGeode; //!< Pointer to geode containing the glpyhs
+
+    boost::shared_ptr< WModuleInputData< WDataSetSingle > > m_input;  //!< Input connector required by this module.
+
+    boost::shared_ptr< const WDataSetSingle > m_dataSet; //!< pointer to dataSet to be able to access it throughout the whole module.
+
+    boost::shared_ptr< WTriangleMesh2 > m_triMesh; //!< This triangle mesh is provided as output through the connector.
+
+    WPropInt      m_xPos; //!< x posistion of the slice
+
+    WPropInt      m_yPos; //!< y posistion of the slice
+
+    WPropInt      m_zPos; //!< z posistion of the slice
+
+    WPropBool     m_showonX; //!< in dicates whether the vector should be shown on slice X
+
+    WPropBool     m_showonY; //!< in dicates whether the vector should be shown on slice Y
+
+    WPropBool     m_showonZ; //!< in dicates whether the vector should be shown on slice Z
+};
+
+#endif  // WMGEOMETRYGLYPHS_H

src/modules/geometryGlyphs/WSphereCreator.cpp

+//---------------------------------------------------------------------------
+//
+// Project: OpenWalnut ( http://www.openwalnut.org )
+//
+// Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
+// For more information see http://www.openwalnut.org/copying
+//
+// This file is part of OpenWalnut.
+//
+// OpenWalnut is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// OpenWalnut 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
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
+//
+//---------------------------------------------------------------------------
+
+#include "WSphereCreator.h"
+
+WSphereCreator::WSphereCreator()
+{
+}
+
+WSphereCreator::~WSphereCreator()
+{
+}
+
+boost::shared_ptr<WTriangleMesh2>WSphereCreator::createSphere( int resolution, float zoom, float xOff, float yOff, float zOff )
+{
+    boost::shared_ptr<WTriangleMesh2>sphere = createIcosahedronSphere( resolution );
+
+    for ( size_t i = 0; i < sphere->vertSize(); ++i )
+    {
+        osg::Vec3 v = sphere->getVertex( i );
+        v.normalize();
+        osg::Vec4 c( fabs( v[0] ), fabs( v[1] ), fabs( v[2] ), 1.0 );
+        sphere->setVertexColor( i, c );
+    }
+
+    sphere->zoomMesh( zoom );
+    sphere->translateMesh( xOff, yOff, zOff );
+
+    return sphere;
+}
+
+boost::shared_ptr<WTriangleMesh2>WSphereCreator::createIcosahedronSphere( int iterations )
+{
+    float t = ( 1 + sqrt( 5 ) ) / 2;
+    float tau = t / sqrt( 1 + t * t );
+    float one = 1 / sqrt( 1 + t * t );
+
+    boost::shared_ptr<WTriangleMesh2>sphere = boost::shared_ptr<WTriangleMesh2>( new WTriangleMesh2( 12, 20 ) );
+
+    sphere->addVertex(  tau,  one,  0.0 );
+    sphere->addVertex( -tau,  one,  0.0 );
+    sphere->addVertex( -tau, -one,  0.0 );
+    sphere->addVertex(  tau, -one,  0.0 );
+    sphere->addVertex(  one,  0.0,  tau );
+    sphere->addVertex(  one,  0.0, -tau );
+    sphere->addVertex( -one,  0.0, -tau );
+    sphere->addVertex( -one,  0.0,  tau );
+    sphere->addVertex(  0.0,  tau,  one );
+    sphere->addVertex(  0.0, -tau,  one );
+    sphere->addVertex(  0.0, -tau, -one );
+    sphere->addVertex(  0.0,  tau, -one );
+
+    sphere->addTriangle( 4, 8, 7 );
+    sphere->addTriangle( 4, 7, 9 );
+    sphere->addTriangle( 5, 6, 11 );
+    sphere->addTriangle( 5, 10, 6 );
+    sphere->addTriangle( 0, 4, 3 );
+    sphere->addTriangle( 0, 3, 5 );
+    sphere->addTriangle( 2, 7, 1 );
+    sphere->addTriangle( 2, 1, 6 );
+    sphere->addTriangle( 8, 0, 11 );
+    sphere->addTriangle( 8, 11, 1 );
+    sphere->addTriangle( 9, 10, 3 );
+    sphere->addTriangle( 9, 2, 10 );
+    sphere->addTriangle( 8, 4, 0 );
+    sphere->addTriangle( 11, 0, 5 );
+    sphere->addTriangle( 4, 9, 3 );
+    sphere->addTriangle( 5, 3, 10 );
+    sphere->addTriangle( 7, 8, 1 );
+    sphere->addTriangle( 6, 1, 11 );
+    sphere->addTriangle( 7, 2, 9 );
+    sphere->addTriangle( 6, 10, 2 );
+
+
+
+    for ( int i = 0; i < iterations; ++i )
+    {
+        sphere->doLoopSubD();
+    }
+
+    return sphere;
+}

src/modules/geometryGlyphs/WSphereCreator.h

+//---------------------------------------------------------------------------
+//
+// Project: OpenWalnut ( http://www.openwalnut.org )
+//
+// Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
+// For more information see http://www.openwalnut.org/copying
+//
+// This file is part of OpenWalnut.
+//
+// OpenWalnut is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// OpenWalnut 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
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
+//
+//---------------------------------------------------------------------------
+
+#ifndef WSPHERECREATOR_H
+#define WSPHERECREATOR_H
+
+#include <boost/shared_ptr.hpp>
+
+#include "../../graphicsEngine/WTriangleMesh2.h"
+
+/**
+ * TODO(schurade): Document this!
+ */
+class WSphereCreator
+{
+public:
+    /**
+     * constructor, does nothing
+     */
+    WSphereCreator();
+    /**
+     * destructor
+     */
+    ~WSphereCreator();
+
+
+    /**
+     * creates a sphere mesh by executing a given number of loopsubd on a
+     *
+     * \param resolution
+     * \param zoom
+     * \param xOff
+     * \param yOff
+     * \param zOff
+     */
+    boost::shared_ptr<WTriangleMesh2>createSphere( int resolution, float zoom = 1., float xOff = 0., float yOff = 0., float zOff = 0. );
+
+
+
+protected:
+private:
+    /**
+     * creates a sphere mesh by executing a given number of loopsubd on a icosahedrom
+     *
+     * \param iterations
+     */
+    boost::shared_ptr<WTriangleMesh2>createIcosahedronSphere( int iterations );
+};
+
+#endif  // WSPHERECREATOR_H