Adding examples directory with isosurface rendering example
This commit is contained in:
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@ -70,6 +70,7 @@ option(VTKm_ENABLE_TESTING "Enable VTKm Testing" ON)
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option(VTKm_ENABLE_BENCHMARKS "Enable VTKm Benchmarking" OFF)
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option(VTKm_BUILD_DOCUMENTATION "Build Doxygen documentation" OFF)
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option(VTKm_BUILD_EXAMPLES "Build examples" OFF)
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option(VTKm_USE_DOUBLE_PRECISION
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"Use double precision for floating point calculations"
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@ -194,6 +195,12 @@ if (VTKm_BUILD_DOCUMENTATION)
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vtkm_build_documentation()
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endif()
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#-----------------------------------------------------------------------------
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# Build examples
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if(VTKm_BUILD_EXAMPLES)
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add_subdirectory(examples)
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endif(VTKm_BUILD_EXAMPLES)
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#-----------------------------------------------------------------------------
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# Configuration for build directory.
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set(VTKm_INCLUDE_DIRS_CONFIG "${VTKm_SOURCE_DIR};${VTKm_BINARY_DIR}")
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44
examples/CMakeLists.txt
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44
examples/CMakeLists.txt
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##=============================================================================
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##
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## Copyright (c) Kitware, Inc.
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## All rights reserved.
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## See LICENSE.txt for details.
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##
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## This software is distributed WITHOUT ANY WARRANTY; without even
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## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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## PURPOSE. See the above copyright notice for more information.
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##
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## Copyright 2015 Sandia Corporation.
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## Copyright 2015 UT-Battelle, LLC.
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## Copyright 2015 Los Alamos National Security.
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##
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## Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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## the U.S. Government retains certain rights in this software.
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## Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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## Laboratory (LANL), the U.S. Government retains certain rights in
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## this software.
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##
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##=============================================================================
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cmake_minimum_required(VERSION 2.8.11)
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find_package(OpenGL)
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find_package(GLUT)
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find_package(TBB)
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if(OPENGL_FOUND AND GLUT_FOUND)
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add_executable(IsosurfaceUniformGrid_SERIAL IsosurfaceUniformGrid.cxx)
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target_include_directories(IsosurfaceUniformGrid_SERIAL PRIVATE ${GLUT_INCLUDE_DIR} ${OPENGL_INCLUDE_DIR})
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target_link_libraries(IsosurfaceUniformGrid_SERIAL ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES})
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if(VTKm_Cuda_FOUND)
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cuda_add_executable(IsosurfaceUniformGrid_CUDA IsosurfaceUniformGrid.cxx)
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target_link_libraries(IsosurfaceUniformGrid_CUDA ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES})
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endif()
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if(VTKm_ENABLE_TBB)
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add_executable(IsosurfaceUniformGrid_TBB IsosurfaceUniformGrid.cxx)
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target_include_directories(IsosurfaceUniformGrid_TBB PRIVATE ${GLUT_INCLUDE_DIR} ${OPENGL_INCLUDE_DIR} ${TBB_INCLUDE_DIRS})
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target_link_libraries(IsosurfaceUniformGrid_TBB ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES} ${TBB_LIBRARIES})
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endif()
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endif()
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249
examples/IsosurfaceUniformGrid.cxx
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249
examples/IsosurfaceUniformGrid.cxx
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@ -0,0 +1,249 @@
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//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#include <vtkm/worklet/IsosurfaceUniformGrid.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/cont/CellSetExplicit.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/testing/Testing.h>
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#if defined (__APPLE__)
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# include <GLUT/glut.h>
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#else
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# include <GL/glut.h>
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#endif
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#include "quaternion.h"
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#include <vector>
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typedef VTKM_DEFAULT_DEVICE_ADAPTER_TAG DeviceAdapter;
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vtkm::worklet::IsosurfaceFilterUniformGrid<vtkm::Float32, DeviceAdapter> *isosurfaceFilter;
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Float32,3> > verticesArray, normalsArray;
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vtkm::cont::ArrayHandle<vtkm::Float32> scalarsArray;
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Quaternion qrot;
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int lastx, lasty;
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int mouse_state = 1;
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namespace {
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class TangleField : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldIn<IdType> vertexId, FieldOut<Scalar> v);
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typedef void ExecutionSignature(_1, _2);
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typedef _1 InputDomain;
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const vtkm::Id xdim, ydim, zdim;
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const float xmin, ymin, zmin, xmax, ymax, zmax;
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const vtkm::Id cellsPerLayer;
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VTKM_CONT_EXPORT
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TangleField(const vtkm::Id3 dims, const float mins[3], const float maxs[3]) : xdim(dims[0]), ydim(dims[1]), zdim(dims[2]),
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xmin(mins[0]), ymin(mins[1]), zmin(mins[2]), xmax(maxs[0]), ymax(maxs[1]), zmax(maxs[2]), cellsPerLayer((xdim) * (ydim)) { };
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VTKM_EXEC_EXPORT
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void operator()(const vtkm::Id &vertexId, vtkm::Float32 &v) const
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{
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const vtkm::Id x = vertexId % (xdim);
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const vtkm::Id y = (vertexId / (xdim)) % (ydim);
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const vtkm::Id z = vertexId / cellsPerLayer;
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const float fx = static_cast<float>(x) / static_cast<float>(xdim-1);
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const float fy = static_cast<float>(y) / static_cast<float>(xdim-1);
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const float fz = static_cast<float>(z) / static_cast<float>(xdim-1);
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const vtkm::Float32 xx = 3.0f*(xmin+(xmax-xmin)*(fx));
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const vtkm::Float32 yy = 3.0f*(ymin+(ymax-ymin)*(fy));
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const vtkm::Float32 zz = 3.0f*(zmin+(zmax-zmin)*(fz));
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v = (xx*xx*xx*xx - 5.0f*xx*xx + yy*yy*yy*yy - 5.0f*yy*yy + zz*zz*zz*zz - 5.0f*zz*zz + 11.8f) * 0.2f + 0.5f;
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}
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};
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vtkm::cont::DataSet MakeIsosurfaceTestDataSet(vtkm::Id3 dims)
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{
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vtkm::cont::DataSet dataSet;
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const vtkm::Id3 vdims(dims[0] + 1, dims[1] + 1, dims[2] + 1);
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const vtkm::Id dim3 = dims[0]*dims[1]*dims[2];
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float mins[3] = {-1.0f, -1.0f, -1.0f};
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float maxs[3] = {1.0f, 1.0f, 1.0f};
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vtkm::cont::ArrayHandle<vtkm::Float32> fieldArray;
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vtkm::cont::ArrayHandleCounting<vtkm::Id> vertexCountImplicitArray(0, vdims[0]*vdims[1]*vdims[2]);
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vtkm::worklet::DispatcherMapField<TangleField> tangleFieldDispatcher(TangleField(vdims, mins, maxs));
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tangleFieldDispatcher.Invoke(vertexCountImplicitArray, fieldArray);
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vtkm::cont::ArrayHandleUniformPointCoordinates coordinates(vdims);
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dataSet.AddCoordinateSystem(
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vtkm::cont::CoordinateSystem("coordinates", 1, coordinates));
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dataSet.AddField(vtkm::cont::Field("nodevar", 1, vtkm::cont::Field::ASSOC_POINTS, fieldArray));
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std::vector<vtkm::Float32> cellvar( static_cast<std::size_t>(dim3) );
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for(std::size_t i=0; i < cellvar.size(); i++)
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{
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cellvar[i] = vtkm::Float32(i);
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}
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vtkm::cont::Field cellField("cellvar", 1,
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vtkm::cont::Field::ASSOC_CELL_SET,
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"cells",
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cellvar);
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dataSet.AddField(cellField);
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static const vtkm::IdComponent ndim = 3;
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vtkm::cont::CellSetStructured<ndim> cellSet("cells");
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cellSet.SetPointDimensions(vdims);
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dataSet.AddCellSet(cellSet);
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return dataSet;
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}
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}
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void initializeGL()
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{
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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glEnable(GL_DEPTH_TEST);
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glShadeModel(GL_SMOOTH);
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float white[] = { 0.8, 0.8, 0.8, 1.0 };
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float black[] = { 0.0, 0.0, 0.0, 1.0 };
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float lightPos[] = { 10.0, 10.0, 10.5, 1.0 };
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glLightfv(GL_LIGHT0, GL_AMBIENT, white);
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glLightfv(GL_LIGHT0, GL_DIFFUSE, white);
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glLightfv(GL_LIGHT0, GL_SPECULAR, black);
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glLightfv(GL_LIGHT0, GL_POSITION, lightPos);
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glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, 1);
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glEnable(GL_LIGHTING);
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glEnable(GL_LIGHT0);
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glEnable(GL_NORMALIZE);
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glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
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glEnable(GL_COLOR_MATERIAL);
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}
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void displayCall()
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{
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glEnable(GL_DEPTH_TEST);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective( 45.0f, 1.0f, 1.0f, 20.0f);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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gluLookAt(0.0f, 0.0f, 3.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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glPushMatrix();
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float rotationMatrix[16];
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qrot.getRotMat(rotationMatrix);
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glMultMatrixf(rotationMatrix);
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glColor3f(0.1f, 0.1f, 0.6f);
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glBegin(GL_TRIANGLES);
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for (unsigned int i=0; i<verticesArray.GetNumberOfValues(); i++)
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{
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vtkm::Vec<vtkm::Float32, 3> curNormal = normalsArray.GetPortalConstControl().Get(i);
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vtkm::Vec<vtkm::Float32, 3> curVertex = verticesArray.GetPortalConstControl().Get(i);
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glNormal3f(curNormal[0], curNormal[1], curNormal[2]);
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glVertex3f(curVertex[0], curVertex[1], curVertex[2]);
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}
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glEnd();
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glPopMatrix();
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glutSwapBuffers();
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}
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void mouseMove(int x, int y)
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{
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int dx = x - lastx;
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int dy = y - lasty;
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if (mouse_state == 0)
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{
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Quaternion newRotX;
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newRotX.setEulerAngles(-0.2*dx*M_PI/180.0, 0.0, 0.0);
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qrot.mul(newRotX);
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Quaternion newRotY;
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newRotY.setEulerAngles(0.0, 0.0, -0.2*dy*M_PI/180.0);
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qrot.mul(newRotY);
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}
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lastx = x;
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lasty = y;
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glutPostRedisplay();
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}
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void mouseCall(int button, int state, int x, int y)
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{
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if (button == 0) mouse_state = state;
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if ((button == 0) && (state == 0)) { lastx = x; lasty = y; }
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}
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int main(int argc, char* argv[])
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{
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std::cout << "IsosurfaceUniformGrid Example" << std::endl;
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vtkm::Id3 dims(16,16,16);
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vtkm::cont::DataSet dataSet = MakeIsosurfaceTestDataSet(dims);
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isosurfaceFilter = new vtkm::worklet::IsosurfaceFilterUniformGrid<vtkm::Float32, DeviceAdapter>(dims, dataSet);
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isosurfaceFilter->Run(0.5,
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dataSet.GetField("nodevar").GetData(),
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verticesArray,
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normalsArray,
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scalarsArray);
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std::cout << verticesArray.GetNumberOfValues() << std::endl;
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lastx = lasty = 0;
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glutInit(&argc, argv);
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glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
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glutInitWindowSize(1000, 1000);
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glutInitWindowPosition(300, 200);
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glutCreateWindow("VTK-m Isosurface");
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initializeGL();
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glutDisplayFunc(displayCall);
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glutMotionFunc(mouseMove);
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glutMouseFunc(mouseCall);
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glutMainLoop();
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return 0;
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}
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79
examples/quaternion.h
Executable file
79
examples/quaternion.h
Executable file
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//=============================================================================
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//
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//
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//=============================================================================
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/*
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* quaternion.h
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*
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* Created on: Oct 10, 2014
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* Author: csewell
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*/
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#ifndef QUATERNION_H_
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#define QUATERNION_H_
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#include <math.h>
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#include <stdlib.h>
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class Quaternion
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{
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public:
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Quaternion() { x = y = z = 0.0; w = 1.0; }
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Quaternion(double x, double y, double z, double w) : x(x), y(y), z(z), w(w) {};
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void set(double ax, double ay, double az, double aw) { x = ax; y = ay; z = az; w = aw; }
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void normalize()
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{
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float norm = sqrt(x*x + y*y + z*z + w*w);
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if (norm > 0.00001) { x /= norm; y /= norm; z /= norm; w /= norm; }
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}
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void mul(Quaternion q)
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{
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float tx, ty, tz, tw;
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tx = w*q.x + x*q.w + y*q.z - z*q.y;
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ty = w*q.y + y*q.w + z*q.x - x*q.z;
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tz = w*q.z + z*q.w + x*q.y - y*q.x;
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tw = w*q.w - x*q.x - y*q.y - z*q.z;
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x = tx; y = ty; z = tz; w = tw;
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}
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void setEulerAngles(float pitch, float yaw, float roll)
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{
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w = cos(pitch/2.0)*cos(yaw/2.0)*cos(roll/2.0) - sin(pitch/2.0)*sin(yaw/2.0)*sin(roll/2.0);
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x = sin(pitch/2.0)*sin(yaw/2.0)*cos(roll/2.0) + cos(pitch/2.0)*cos(yaw/2.0)*sin(roll/2.0);
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y = sin(pitch/2.0)*cos(yaw/2.0)*cos(roll/2.0) + cos(pitch/2.0)*sin(yaw/2.0)*sin(roll/2.0);
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z = cos(pitch/2.0)*sin(yaw/2.0)*cos(roll/2.0) - sin(pitch/2.0)*cos(yaw/2.0)*sin(roll/2.0);
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normalize();
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}
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void getRotMat(float* m) const
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{
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for (int i=0; i<16; i++) m[i] = 0.0; m[15] = 1.0;
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m[0] = 1 - 2*y*y - 2*z*z; m[1] = 2*x*y - 2*z*w; m[2] = 2*x*z + 2*y*w;
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m[4] = 2*x*y + 2*z*w; m[5] = 1 - 2*x*x - 2*z*z; m[6] = 2*y*z - 2*x*w;
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m[8] = 2*x*z - 2*y*w; m[9] = 2*y*z + 2*x*w; m[10] = 1 - 2*x*x - 2*y*y;
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}
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double x,y,z,w;
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};
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#endif /* QUATERNION_H_ */
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@ -139,6 +139,7 @@ RMagnitudeTemplate(const T &x, vtkm::TypeTraitsVectorTag)
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/// as fast as MagnitudeSquared.
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///
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template<typename T>
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VTKM_EXEC_CONT_EXPORT
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typename vtkm::VecTraits<T>::ComponentType
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RMagnitude(const T &x)
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{
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@ -105,6 +105,7 @@ public:
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typedef typename vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3> >::template ExecutionTypes<DeviceAdapter>::Portal VectorPortalType;
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VectorPortalType Vertices;
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VectorPortalType Normals;
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typedef typename vtkm::cont::ArrayHandle<vtkm::Id> IdArrayHandle;
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typedef typename IdArrayHandle::ExecutionTypes<DeviceAdapter>::PortalConst IdPortalType;
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@ -115,14 +116,15 @@ public:
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template<typename U, typename W, typename X>
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VTKM_CONT_EXPORT
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IsoSurfaceGenerate(const float ivalue, const vtkm::Id3 cdims, IdPortalType triTablePortal,
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const U & field, const U & source, const W & vertices, const X & scalars) :
|
||||
const U & field, const U & source, const W & vertices, const W & normals, const X & scalars) :
|
||||
Isovalue(ivalue),
|
||||
xdim(cdims[0]), ydim(cdims[1]), zdim(cdims[2]),
|
||||
xmin(-1), ymin(-1), zmin(-1), xmax(1), ymax(1), zmax(1),
|
||||
Field( field.PrepareForInput( DeviceAdapter() ) ),
|
||||
Source( source.PrepareForInput( DeviceAdapter() ) ),
|
||||
Scalars(scalars),
|
||||
Vertices(vertices),
|
||||
Normals(normals),
|
||||
Scalars(scalars),
|
||||
TriTable(triTablePortal),
|
||||
cellsPerLayer(xdim * ydim),
|
||||
pointsPerLayer ((xdim+1)*(ydim+1))
|
||||
@ -224,6 +226,16 @@ public:
|
||||
this->Vertices.Set(outputVertId + v, vtkm::Lerp(p[v0], p[v1], t));
|
||||
this->Scalars.Set(outputVertId + v, vtkm::Lerp(s[v0], s[v1], t));
|
||||
}
|
||||
|
||||
vtkm::Vec<FieldType, 3> vertex0 = this->Vertices.Get(outputVertId + 0);
|
||||
vtkm::Vec<FieldType, 3> vertex1 = this->Vertices.Get(outputVertId + 1);
|
||||
vtkm::Vec<FieldType, 3> vertex2 = this->Vertices.Get(outputVertId + 2);
|
||||
|
||||
vtkm::Vec<FieldType, 3> curNorm = vtkm::Cross(vertex1-vertex0, vertex2-vertex0);
|
||||
vtkm::Normalize(curNorm);
|
||||
this->Normals.Set(outputVertId + 0, curNorm);
|
||||
this->Normals.Set(outputVertId + 1, curNorm);
|
||||
this->Normals.Set(outputVertId + 2, curNorm);
|
||||
}
|
||||
};
|
||||
|
||||
@ -242,6 +254,7 @@ public:
|
||||
void Run(const float &isovalue,
|
||||
IsoField isoField,
|
||||
vtkm::cont::ArrayHandle< vtkm::Vec<CoordinateType,3> > &verticesArray,
|
||||
vtkm::cont::ArrayHandle< vtkm::Vec<CoordinateType,3> > &normalsArray,
|
||||
vtkm::cont::ArrayHandle<FieldType> &scalarsArray)
|
||||
{
|
||||
typedef typename vtkm::cont::DeviceAdapterAlgorithm<DeviceAdapter> DeviceAlgorithms;
|
||||
@ -303,6 +316,7 @@ public:
|
||||
field,
|
||||
field,
|
||||
verticesArray.PrepareForOutput(numTotalVertices, DeviceAdapter()),
|
||||
normalsArray.PrepareForOutput(numTotalVertices, DeviceAdapter()),
|
||||
scalarsArray.PrepareForOutput(numTotalVertices, DeviceAdapter())
|
||||
);
|
||||
|
||||
|
@ -121,11 +121,12 @@ void TestIsosurfaceUniformGrid()
|
||||
vtkm::worklet::IsosurfaceFilterUniformGrid<vtkm::Float32,
|
||||
DeviceAdapter> isosurfaceFilter(dims, dataSet);
|
||||
|
||||
vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Float32,3> > verticesArray;
|
||||
vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Float32,3> > verticesArray, normalsArray;
|
||||
vtkm::cont::ArrayHandle<vtkm::Float32> scalarsArray;
|
||||
isosurfaceFilter.Run(0.5,
|
||||
dataSet.GetField("nodevar").GetData(),
|
||||
verticesArray,
|
||||
normalsArray,
|
||||
scalarsArray);
|
||||
|
||||
VTKM_TEST_ASSERT(test_equal(verticesArray.GetNumberOfValues(), 480),
|
||||
|
Loading…
Reference in New Issue
Block a user