Merge remote-tracking branch 'origin/tensor_data_support' into development

core/datastructures/genericimagerepresentationlocal.h

@@ -26,6 +26,7 @@
 #define GENERICIMAGEREPRESENTATIONLOCAL_H__
 
 #include "core/datastructures/imagerepresentationlocal.h"
+#include "core/datastructures/imagerepresentationdisk.h"
 #include "core/tools/typetraits.h"
 
 #include <cstring>  // needed for memcpy
@@ -150,7 +151,7 @@ namespace campvis {
          * \param   data    Pointer to the image data, must not be 0, GenericImageRepresentationLocal takes ownership of this pointer!
          * \return  A pointer to the newly created ImageRepresentationDisk, you do \b not own this pointer!
          */
-        static GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>* create(ImageData* parent, ElementType* data);
+        static GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>* create(const ImageData* parent, ElementType* data);
 
         /**
          * Destructor
@@ -280,8 +281,8 @@ namespace campvis {
 // = Template implementation ======================================================================
 
     template<typename BASETYPE, size_t NUMCHANNELS>
-    campvis::GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>* campvis::GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>::create(ImageData* parent, ElementType* data) {
-        ThisType* toReturn = new ThisType(parent, data);
+    campvis::GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>* campvis::GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>::create(const ImageData* parent, ElementType* data) {
+        ThisType* toReturn = new ThisType(const_cast<ImageData*>(parent), data);
         toReturn->addToParent();
         return toReturn;
     }
@@ -306,6 +307,12 @@ namespace campvis {
 
     template<typename BASETYPE, size_t NUMCHANNELS>
     GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>* campvis::GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>::tryConvertFrom(const AbstractImageRepresentation* source) {
+        if (const ImageRepresentationDisk* tester = dynamic_cast<const ImageRepresentationDisk*>(source)) {
+            if (tester->getBaseType() == TypeTraits<BASETYPE, NUMCHANNELS>::weaklyTypedPointerBaseType && tester->getParent()->getNumChannels() == NUMCHANNELS) {
+                WeaklyTypedPointer wtp = tester->getImageData();
+                return create(tester->getParent(), static_cast<ElementType*>(wtp._pointer));
+            }            
+        }
         return 0;
     }
 

core/datastructures/imagerepresentationlocal.cpp

@@ -202,6 +202,7 @@ namespace campvis {
         else DISPATCH_DISK_TO_GENERIC_LOCAL_CONVERSION(2)
         else DISPATCH_DISK_TO_GENERIC_LOCAL_CONVERSION(3)
         else DISPATCH_DISK_TO_GENERIC_LOCAL_CONVERSION(4)
+        else DISPATCH_DISK_TO_GENERIC_LOCAL_CONVERSION(6)
         else {
             tgtAssert(false, "Should not reach this - wrong number of channel!");
             return 0;

core/datastructures/tensor.h

+// ================================================================================================
+// 
+// This file is part of the CAMPVis Software Framework.
+// 
+// If not explicitly stated otherwise: Copyright (C) 2012-2013, all rights reserved,
+//      Christian Schulte zu Berge <christian.szb@in.tum.de>
+//      Chair for Computer Aided Medical Procedures
+//      Technische Universitt Mnchen
+//      Boltzmannstr. 3, 85748 Garching b. Mnchen, Germany
+// 
+// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
+// 
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 
+// except in compliance with the License. You may obtain a copy of the License at
+// 
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software distributed under the 
+// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+// 
+// ================================================================================================
+
+#ifndef TENSOR_H__
+#define TENSOR_H__
+
+#include "tgt/matrix.h"
+
+namespace campvis {
+
+    /**
+     * Second order tensor of base type T
+     *
+     * A second order tensor is a symmetric, positive definite 3x3 matrix, though
+     * can be represented by 6 values. To save memory only these 6 values are stored,
+     * use according accessor functions to get a Matrix3\<T\> representation.
+     *
+     * In this implementation the 6 tensor values are stored in row order as upper
+     * diagonal matrix, meaning
+     *               Dxx  Dxy  Dxz
+     *      elem  =       Dyy  Dyz  =  [Dxx, Dxy, Dxz, Dyy, Dyz, Dzz]
+     *                         Dzz
+     *
+     * If you have differently organized data use one of the order transforming
+     * factory methods.
+     **/
+    template<class T>
+    struct Tensor2 {
+        typedef T ElemType;
+
+        enum {
+            size = 6
+        };
+
+        union {
+            struct {
+                T Dxx;
+                T Dxy;
+                T Dxz;
+                T Dyy;
+                T Dyz;
+                T Dzz;
+            };
+
+            T elem[size];
+        };
+
+
+        /// Default constructor
+        Tensor2() {}
+
+        /// Init all elements with the same value
+        explicit Tensor2(T v) {
+            for (size_t i = 0; i < size; ++i)
+                elem[i] = v;
+        }
+        /// Init from array with equal size
+        explicit Tensor2(const T* v) {
+            for (size_t i = 0; i < size; ++i)
+                elem[i] = v[i];
+        }
+
+        /// Init componentwisely
+        Tensor2(T Dxx, T Dxy, T Dxz, T Dyy, T Dyz, T Dzz) {
+            elem[0] = Dxx;
+            elem[1] = Dxy;
+            elem[2] = Dxz;
+            elem[3] = Dyy;
+            elem[4] = Dyz;
+            elem[5] = Dzz;
+        }
+
+        /// Init with another Vector of another type
+        template<class U>
+        Tensor2(const Tensor2<U>& v) {
+            for (size_t i = 0; i < v.size; ++i)
+                elem[i] = T(v.elem[i]);
+        }
+
+        /// Destructor
+        ~Tensor2() {
+        }
+
+        /// Index operator
+        const T& operator [] (size_t index) const {
+            return elem[index];
+        }
+
+        /// Index operator
+        T& operator [] (size_t index) {
+            return elem[index];
+        }
+
+        /**
+         * Returns a 3x3 matrix representation of this rank-2 Tensor
+         * \return  tgt::Matrix3<T>(Dxx, Dxy, Dxz, Dxy, Dyy, Dyz, Dxz, Dyz, Dzz)
+         */
+        tgt::Matrix3<T> getMatrix() const {
+            return tgt::Matrix3<T>(Dxx, Dxy, Dxz, Dxy, Dyy, Dyz, Dxz, Dyz, Dzz);
+        }
+
+        /**
+         * Creates a second order tensor from values given in row order as
+         * lower diagonal matrix, meaning
+         *               Dxx
+         *      elem  =  Dxy  Dyy       =  [Dxx, Dxy, Dyy, Dxz, Dyz, Dzz]
+         *               Dxz  Dyz  Dzz
+         **/
+        static Tensor2<T> createTensorFromLowerDiagonalMatrix(T Dxx, T Dxy, T Dyy, T Dxz, T Dyz, T Dzz) {
+            return Tensor2(Dxx, Dxy, Dxz, Dyy, Dyz, Dzz);
+        }
+
+        /**
+         * Creates a second order tensor from values given in row order as
+         * lower diagonal matrix, meaning
+         *               Dxx
+         *      elem  =  Dxy  Dyy       =  [Dxx, Dxy, Dyy, Dxz, Dyz, Dzz]
+         *               Dxz  Dyz  Dzz
+         **/
+        static Tensor2<T> createTensorFromLowerDiagonalMatrix(const T* elem) {
+            return Tensor2(elem[0], elem[1], elem[3], elem[2], elem[4], elem[5]);
+        }
+
+        /**
+         * Creates a second order tensor from values given in row order as
+         * lower diagonal matrix, meaning
+         *               1  4  5
+         *      elem  =     2  6  =  [Dxx, Dyy, Dzz, Dxy, Dxz, Dyz]
+         *                     3
+         **/
+        static Tensor2<T> createTensorFromDiagonalOrder(T Dxx, T Dyy, T Dzz, T Dxy, T Dxz, T Dyz) {
+            return Tensor2(Dxx, Dxy, Dxz, Dyy, Dyz, Dzz);
+        }
+
+        /**
+         * Creates a second order tensor from values given in row order as
+         * lower diagonal matrix, meaning
+         *               1  4  5
+         *      elem  =     2  6  =  [Dxx, Dyy, Dzz, Dxy, Dxz, Dyz]
+         *                     3
+         **/
+        static Tensor2<T> createTensorFromDiagonalOrder(const T* elem) {
+            return Tensor2(elem[0], elem[3], elem[4], elem[1], elem[5], elem[2]);
+        }
+
+
+        bool operator==(const Tensor2<T>& rhs) {
+            return (   (Dxx == rhs.Dxx)
+                    && (Dxy == rhs.Dxy)
+                    && (Dxz == rhs.Dxz)
+                    && (Dyy == rhs.Dyy)
+                    && (Dyz == rhs.Dyz)
+                    && (Dzz == rhs.Dzz));
+        }
+
+        bool operator!=(const Tensor2<T>& rhs) {
+            return (   (Dxx != rhs.Dxx)
+                    || (Dxy != rhs.Dxy)
+                    || (Dxz != rhs.Dxz)
+                    || (Dyy != rhs.Dyy)
+                    || (Dyz != rhs.Dyz)
+                    || (Dzz != rhs.Dzz));
+        }
+
+        Tensor2<T> operator*(const T& rhs) {
+            return Tensor2<T>(Dxx*rhs, Dxy*rhs, Dxz*rhs, Dyy*rhs, Dyz*rhs, Dzz*rhs);
+        }
+
+        Tensor2<T> operator/(const T& rhs) {
+            return Tensor2<T>(Dxx/rhs, Dxy/rhs, Dxz/rhs, Dyy/rhs, Dyz/rhs, Dzz/rhs);
+        }
+
+        Tensor2<T> operator+(const Tensor2<T>& rhs) {
+            return Tensor2<T>(Dxx+rhs.Dxx, Dxy+rhs.Dxy, Dxz+rhs.Dxz, Dyy+rhs.Dyy, Dyz+rhs.Dyz, Dzz+rhs.Dzz);
+        }
+
+        Tensor2<T> operator-(const Tensor2<T>& rhs) {
+            return Tensor2<T>(Dxx-rhs.Dxx, Dxy-rhs.Dxy, Dxz-rhs.Dxz, Dyy-rhs.Dyy, Dyz-rhs.Dyz, Dzz-rhs.Dzz);
+        }
+
+        Tensor2<T>& operator+=(const Tensor2<T>& rhs) {
+            for (size_t i = 0; i < size; ++i)
+                elem[i] += rhs.elem[i];
+            return *this;
+        }
+
+        Tensor2<T>& operator-=(const Tensor2<T>& rhs) {
+            for (size_t i = 0; i < size; ++i)
+                elem[i] -= rhs.elem[i];
+            return *this;
+        }
+
+    };
+
+}
+
+#endif // TENSOR_H__

core/tools/typetraits.h

@@ -27,7 +27,9 @@
 
 #include "tgt/tgt_gl.h"
 #include "tgt/tgt_math.h"
+#include "tgt/matrix.h"
 #include "tgt/vector.h"
+#include "core/datastructures/tensor.h"
 #include "core/tools/weaklytypedpointer.h"
 #include <limits>
 
@@ -48,12 +50,12 @@ namespace {
 
     template<>
     struct TypeTraitsHelperPerChannel<1> {
-        static const GLint glFormat = GL_ALPHA;
+        static const GLint glFormat = GL_RED;
     };
 
     template<>
     struct TypeTraitsHelperPerChannel<2> {
-        static const GLint glFormat = GL_LUMINANCE_ALPHA;
+        static const GLint glFormat = GL_RG;
     };
 
     template<>
@@ -66,6 +68,16 @@ namespace {
         static const GLint glFormat = GL_RGBA;
     };
 
+    template<>
+    struct TypeTraitsHelperPerChannel<6> {
+        static const GLint glFormat = GL_RGB;
+    };
+
+    template<>
+    struct TypeTraitsHelperPerChannel<9> {
+        static const GLint glFormat = GL_RGB;
+    };
+
 // ================================================================================================
 // ================================================================================================
 
@@ -84,37 +96,53 @@ namespace {
         static const GLint glInteralFormat = internalFormat; \
     }; \
 
-    SPCIALIZE_TTIF(uint8_t, 1, GL_ALPHA8)
-    SPCIALIZE_TTIF(int8_t,  1, GL_ALPHA8)
-    SPCIALIZE_TTIF(uint16_t,1, GL_ALPHA16)
-    SPCIALIZE_TTIF(int16_t, 1, GL_ALPHA16)
-    SPCIALIZE_TTIF(uint32_t,1, GL_ALPHA)
-    SPCIALIZE_TTIF(int32_t, 1, GL_ALPHA)
-    SPCIALIZE_TTIF(float,   1, GL_ALPHA32F_ARB)
-
-    SPCIALIZE_TTIF(uint8_t, 2, GL_LUMINANCE_ALPHA)
-    SPCIALIZE_TTIF(int8_t,  2, GL_LUMINANCE_ALPHA)
-    SPCIALIZE_TTIF(uint16_t,2, GL_LUMINANCE_ALPHA)
-    SPCIALIZE_TTIF(int16_t, 2, GL_LUMINANCE_ALPHA)
-    SPCIALIZE_TTIF(uint32_t,2, GL_LUMINANCE_ALPHA)
-    SPCIALIZE_TTIF(int32_t, 2, GL_LUMINANCE_ALPHA)
-    SPCIALIZE_TTIF(float,   2, GL_LUMINANCE_ALPHA)
+    SPCIALIZE_TTIF(uint8_t, 1, GL_R8)
+    SPCIALIZE_TTIF(int8_t,  1, GL_R8)
+    SPCIALIZE_TTIF(uint16_t,1, GL_R16)
+    SPCIALIZE_TTIF(int16_t, 1, GL_R16)
+    SPCIALIZE_TTIF(uint32_t,1, GL_R32F)
+    SPCIALIZE_TTIF(int32_t, 1, GL_R32F)
+    SPCIALIZE_TTIF(float,   1, GL_R32F)
+
+    SPCIALIZE_TTIF(uint8_t, 2, GL_RG8)
+    SPCIALIZE_TTIF(int8_t,  2, GL_RG8)
+    SPCIALIZE_TTIF(uint16_t,2, GL_RG16)
+    SPCIALIZE_TTIF(int16_t, 2, GL_RG16)
+    SPCIALIZE_TTIF(uint32_t,2, GL_RG32F)
+    SPCIALIZE_TTIF(int32_t, 2, GL_RG32F)
+    SPCIALIZE_TTIF(float,   2, GL_RG32F)
 
     SPCIALIZE_TTIF(uint8_t, 3, GL_RGB8)
     SPCIALIZE_TTIF(int8_t,  3, GL_RGB8)
     SPCIALIZE_TTIF(uint16_t,3, GL_RGB16)
     SPCIALIZE_TTIF(int16_t, 3, GL_RGB16)
-    SPCIALIZE_TTIF(uint32_t,3, GL_RGB)
-    SPCIALIZE_TTIF(int32_t, 3, GL_RGB)
-    SPCIALIZE_TTIF(float,   3, GL_RGB32F_ARB)
+    SPCIALIZE_TTIF(uint32_t,3, GL_RGB32F)
+    SPCIALIZE_TTIF(int32_t, 3, GL_RGB32F)
+    SPCIALIZE_TTIF(float,   3, GL_RGB32F)
 
     SPCIALIZE_TTIF(uint8_t, 4, GL_RGBA8)
     SPCIALIZE_TTIF(int8_t,  4, GL_RGBA8)
     SPCIALIZE_TTIF(uint16_t,4, GL_RGBA16)
     SPCIALIZE_TTIF(int16_t, 4, GL_RGBA16)
-    SPCIALIZE_TTIF(uint32_t,4, GL_RGBA)
-    SPCIALIZE_TTIF(int32_t, 4, GL_RGBA)
-    SPCIALIZE_TTIF(float,   4, GL_RGBA32F_ARB)
+    SPCIALIZE_TTIF(uint32_t,4, GL_RGBA32F)
+    SPCIALIZE_TTIF(int32_t, 4, GL_RGBA32F)
+    SPCIALIZE_TTIF(float,   4, GL_RGBA32F)
+
+    SPCIALIZE_TTIF(uint8_t, 6, GL_RGB8)
+    SPCIALIZE_TTIF(int8_t,  6, GL_RGB8)
+    SPCIALIZE_TTIF(uint16_t,6, GL_RGB16)
+    SPCIALIZE_TTIF(int16_t, 6, GL_RGB16)
+    SPCIALIZE_TTIF(uint32_t,6, GL_RGB32F)
+    SPCIALIZE_TTIF(int32_t, 6, GL_RGB32F)
+    SPCIALIZE_TTIF(float,   6, GL_RGB32F)
+
+    SPCIALIZE_TTIF(uint8_t, 9, GL_RGB8)
+    SPCIALIZE_TTIF(int8_t,  9, GL_RGB8)
+    SPCIALIZE_TTIF(uint16_t,9, GL_RGB16)
+    SPCIALIZE_TTIF(int16_t, 9, GL_RGB16)
+    SPCIALIZE_TTIF(uint32_t,9, GL_RGB32F)
+    SPCIALIZE_TTIF(int32_t, 9, GL_RGB32F)
+    SPCIALIZE_TTIF(float,   9, GL_RGB32F)
 
 // ================================================================================================
 // ================================================================================================
@@ -259,6 +287,36 @@ namespace {
         }
     };
 
+    template<typename BASETYPE>
+    struct TypeTraitsHelperOfBasetypePerChannel<BASETYPE, 6> {
+        typedef Tensor2< BASETYPE > ElementType;
+
+        static inline BASETYPE getChannel(const ElementType& element, size_t channel) {
+            tgtAssert(channel >= 0 && channel <= 5, "Channel out of bounds!");
+            return element[channel];
+        }
+
+        static inline void setChannel(ElementType& element, size_t channel, BASETYPE value) {
+            tgtAssert(channel >= 0 && channel <= 5, "Channel out of bounds!");
+            element[channel] = value;
+        }
+    };
+
+    template<typename BASETYPE>
+    struct TypeTraitsHelperOfBasetypePerChannel<BASETYPE, 9> {
+        typedef tgt::Matrix3< BASETYPE > ElementType;
+
+        static inline BASETYPE getChannel(const ElementType& element, size_t channel) {
+            tgtAssert(channel >= 0 && channel <= 8, "Channel out of bounds!");
+            return element.elem[channel];
+        }
+
+        static inline void setChannel(ElementType& element, size_t channel, BASETYPE value) {
+            tgtAssert(channel >= 0 && channel <= 8, "Channel out of bounds!");
+            element.elem[channel] = value;
+        }
+    };
+
 // ================================================================================================
 // ================================================================================================
     

core/tools/weaklytypedpointer.cpp

@@ -32,7 +32,7 @@ namespace campvis {
         , _numChannels(numChannels)
         , _pointer(ptr)
     {
-        tgtAssert(_numChannels > 0 && _numChannels <= 4, "Number of channels out of bounds!");
+        tgtAssert(_numChannels > 0, "Number of channels out of bounds!");
     };
 
     WeaklyTypedPointer::WeaklyTypedPointer()

modules/io/processors/mhdimagereader.cpp

@@ -76,8 +76,14 @@ namespace campvis {
 
             // image type
             if (tfp.hasKey("ObjectType")) {
-                if (tfp.getString("ObjectType") != "Image") {
-                    LERROR("Error while parsing MHD header: ObjectType = Image expected");
+                if (tfp.getString("ObjectType") == "Image") {
+                    numChannels = 1;
+                }
+                else if (tfp.getString("ObjectType") == "TensorImage") {
+                    numChannels = 6;
+                }
+                else {
+                    LERROR("Error while parsing MHD header: ObjectType = Image or ObjectType = TensorImage expected");
                     return;
                 }
             }

modules/tensor/pipelines/tensordemo.cpp

+// ================================================================================================
+// 
+// This file is part of the CAMPVis Software Framework.
+// 
+// If not explicitly stated otherwise: Copyright (C) 2012-2013, all rights reserved,
+//      Christian Schulte zu Berge <christian.szb@in.tum.de>
+//      Chair for Computer Aided Medical Procedures
+//      Technische Universität München
+//      Boltzmannstr. 3, 85748 Garching b. München, Germany
+// 
+// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
+// 
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 
+// except in compliance with the License. You may obtain a copy of the License at
+// 
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software distributed under the 
+// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+// 
+// ================================================================================================
+
+#include "tensordemo.h"
+
+#include "tgt/event/keyevent.h"
+
+#include "core/classification/geometry1dtransferfunction.h"
+#include "core/classification/tfgeometry1d.h"
+
+namespace campvis {
+
+    TensorDemo::TensorDemo(DataContainer* dc)
+        : AutoEvaluationPipeline(dc)
+        , _imageReader()
+        , _ta()
+        , _sliceExtractor(&_canvasSize)
+        , _wheelHandler(&_sliceExtractor.p_zSliceNumber)
+    {
+        addProcessor(&_imageReader);
+        addProcessor(&_ta);
+        addProcessor(&_sliceExtractor);
+        addEventListenerToBack(&_wheelHandler);
+    }
+
+    TensorDemo::~TensorDemo() {
+    }
+
+    void TensorDemo::init() {
+        AutoEvaluationPipeline::init();
+
+        _imageReader.p_url.setValue(CAMPVIS_SOURCE_DIR "/modules/tensor/sampledata/planar_tensor.mhd");
+        _imageReader.p_targetImageID.setValue("reader.output");
+        _imageReader.p_targetImageID.addSharedProperty(&_ta.p_inputImage);
+        
+        _ta.p_outputProperties[0]->_imageId.addSharedProperty(&_sliceExtractor.p_sourceImageID);
+        _ta.p_outputProperties[0]->_imageType.selectById("MainEigenvector");
+        _ta.s_validated.connect(this, &TensorDemo::onProcessorValidated);
+
+        _sliceExtractor.p_xSliceNumber.setValue(0);
+
+        Geometry1DTransferFunction* tf = new Geometry1DTransferFunction(128, tgt::vec2(0.f, 1.f));
+        tf->addGeometry(TFGeometry1D::createQuad(tgt::vec2(0.f, 1.f), tgt::col4(0, 0, 0, 0), tgt::col4(255, 255, 255, 255)));
+        _sliceExtractor.p_transferFunction.replaceTF(tf);
+
+        _renderTargetID.setValue("renderTarget");
+        _renderTargetID.addSharedProperty(&(_sliceExtractor.p_targetImageID));
+    }
+
+    void TensorDemo::onProcessorValidated(AbstractProcessor* processor) {
+        if (processor == &_imageReader) {
+            ScopedTypedData<ImageData> img(*_data, _sliceExtractor.p_sourceImageID.getValue());
+            if (img != 0) {
+                _sliceExtractor.p_transferFunction.getTF()->setImageHandle(img.getDataHandle());
+            }
+        }
+    }
+
+}

modules/tensor/pipelines/tensordemo.h

+// ================================================================================================
+// 
+// This file is part of the CAMPVis Software Framework.
+// 
+// If not explicitly stated otherwise: Copyright (C) 2012-2013, all rights reserved,
+//      Christian Schulte zu Berge <christian.szb@in.tum.de>
+//      Chair for Computer Aided Medical Procedures
+//      Technische Universität München
+//      Boltzmannstr. 3, 85748 Garching b. München, Germany
+// 
+// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
+// 
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 
+// except in compliance with the License. You may obtain a copy of the License at
+// 
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software distributed under the 
+// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+// 
+// ================================================================================================
+
+#ifndef TENSORDEMO_H__
+#define TENSORDEMO_H__
+
+#include "core/eventhandlers/mwheeltonumericpropertyeventlistener.h"
+#include "core/pipeline/autoevaluationpipeline.h"
+
+#include "modules/io/processors/mhdimagereader.h"
+#include "modules/tensor/processors/tensoranalyzer.h"
+#include "modules/vis/processors/sliceextractor.h"
+
+namespace campvis {
+    class TensorDemo : public AutoEvaluationPipeline {
+    public:
+        /**
+         * Small demo pipeline for tensor data visualization.
+         */
+        TensorDemo(DataContainer* dc);
+
+        /**
+         * Virtual Destructor
+         **/
+        virtual ~TensorDemo();
+
+        /// \see AutoEvaluationPipeline::init()
+        virtual void init();
+
+        /// \see AbstractPipeline::getName()
+        virtual const std::string getName() const { return getId(); };
+        /// \see AbstractPipeline::getId()
+        static const std::string getId() { return "TensorDemo"; };
+
+    protected:
+        /**
+         * Slot getting called when one of the observed processors got validated.
+         * Updates the camera properties, when the input image has changed.
+         * \param   processor   The processor that emitted the signal
+         */
+        virtual void onProcessorValidated(AbstractProcessor* processor);
+
+        MhdImageReader _imageReader;
+        TensorAnalyzer _ta;
+        SliceExtractor _sliceExtractor;
+
+        MWheelToNumericPropertyEventListener _wheelHandler;
+    };
+
+}