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Added ability to set opacity for PDF Special case
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| # Compile the PNGCompare test, which is used to validate PNG images (read from | ||
| # disk, not generated in VTK). The CMake/RasterizePostScript script can be used | ||
| # to create a png image from GL2PS output. | ||
| set(tests PNGCompare) | ||
| vtk_test_cxx_executable(${vtk-module}CxxTests tests | ||
| RENDERING_FACTORY | ||
| ) | ||
| ## Compile the PNGCompare test, which is used to validate PNG images (read from | ||
| ## disk, not generated in VTK). The CMake/RasterizePostScript script can be used | ||
| ## to create a png image from GL2PS output. | ||
| #set(tests PNGCompare TestGL2PSAddPolyPrimitive) | ||
| #vtk_test_cxx_executable(${vtk-module}CxxTests tests | ||
| # RENDERING_FACTORY | ||
| # ) | ||
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| set(GL2PSTests | ||
| TestGL2PSAddPolyPrimitive.cxx | ||
| ) | ||
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| vtk_add_test_cxx(${vtk-module}CxxTests tests NO_VALID ${GL2PSTests}) | ||
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| vtk_test_cxx_executable(${vtk-module}CxxTests tests RENDERING_FACTORY) |
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Rendering/GL2PS/Testing/Cxx/TestGL2PSAddPolyPrimitive.cxx
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| /*========================================================================= | ||
| Program: Visualization Toolkit | ||
| Module: TestGL2PSAddPolyPrimitive.cxx | ||
| Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen | ||
| All rights reserved. | ||
| See Copyright.txt or http://www.kitware.com/Copyright.htm for details. | ||
| This software is distributed WITHOUT ANY WARRANTY; without even | ||
| the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR | ||
| PURPOSE. See the above copyright notice for more information. | ||
| =========================================================================*/ | ||
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| // This test checks that we can use GL2PS without an OpenGL context using | ||
| // a buffer size of 0, gl2psAddPolyPrimitive, and gl2psForceRasterPos. | ||
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| #include "vtk_gl2ps.h" | ||
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| #include "vtkTestingInteractor.h" | ||
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| #include <iostream> | ||
| #include <string> | ||
| #include <vector> | ||
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| namespace { | ||
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| static inline void setVertex(GL2PSvertex &vert, | ||
| float x, float y, float z, | ||
| float r, float g, float b, float a) | ||
| { | ||
| vert.xyz[0] = x; | ||
| vert.xyz[1] = y; | ||
| vert.xyz[2] = z; | ||
| vert.rgba[0] = r; | ||
| vert.rgba[1] = g; | ||
| vert.rgba[2] = b; | ||
| vert.rgba[3] = a; | ||
| } | ||
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| static inline void generatePixelData(std::vector<float> &data, | ||
| size_t width, size_t height) | ||
| { | ||
| data.resize(width * height * 4); | ||
| for (size_t h = 0; h < height; ++h) | ||
| { | ||
| size_t rowOffset = h * width * 4; | ||
| for (size_t w = 0; w < width; ++w) | ||
| { | ||
| size_t pixel = rowOffset + (w * 4); | ||
| data[pixel ] = h / static_cast<float>(height); | ||
| data[pixel + 1] = 0.f; | ||
| data[pixel + 2] = w / static_cast<float>(width); | ||
| data[pixel + 3] = 1.f; | ||
| } | ||
| } | ||
| } | ||
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| } // end anon namespace | ||
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| #include <vtkOpenGLGL2PSExporter.h> | ||
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| #include <vtkTextActor.h> | ||
| #include <vtkRenderer.h> | ||
| #include <vtkRenderWindow.h> | ||
| #include <vtkTextActor.h> | ||
| #include <vtkTextProperty.h> | ||
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| #include <vtkPropCollection.h> | ||
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| int TestGL2PSAddPolyPrimitive(int , char * []) | ||
| { | ||
| vtkNew<vtkOpenGLGL2PSExporter> exporter; | ||
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| vtkNew<vtkTextActor> ta; | ||
| ta->SetPosition(0, 0); | ||
| ta->SetInput("Hello"); | ||
| ta->GetTextProperty()->SetColor(0.0, 1.0, 0.0); | ||
| ta->GetTextProperty()->SetOpacity(0.5); | ||
| exporter->SetCompress(0); | ||
| exporter->DrawBackgroundOff(); | ||
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| vtkNew<vtkRenderer> ren; | ||
| vtkNew<vtkRenderWindow> renWin; | ||
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| ren->AddActor(ta.GetPointer()); | ||
| renWin->AddRenderer(ren.GetPointer()); | ||
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| vtkPropCollection* ac = ren->GetViewProps(); | ||
| ac->InitTraversal(); | ||
| vtkProp* act = ac->GetNextProp(); | ||
| vtkIndent ind; | ||
| while(act) { | ||
| act->PrintSelf(std::cout, ind); | ||
| act = ac->GetNextProp(); | ||
| } | ||
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| exporter->SetTextAsPath(1); | ||
| exporter->SetInput(renWin.GetPointer()); | ||
| exporter->SetFileFormatToPDF(); | ||
| exporter->SetFilePrefix("bad"); | ||
| exporter->Write(); | ||
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| // std::string filename = vtkTestingInteractor::TempDirectory + | ||
| // std::string("/TestGL2PSAddPolyPrimitive.pdf"); | ||
| // FILE *stream = fopen(filename.c_str(), "wb"); | ||
| // if (stream == NULL) | ||
| // { | ||
| // std::cerr << "Error opening output file." << std::endl; | ||
| // return EXIT_FAILURE; | ||
| // } | ||
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| // GLint viewport[4] = { 0, 0, 400, 400 }; | ||
| // GLint result = gl2psBeginPage("AddPolyPrimitive Test", "VTK", viewport, | ||
| // GL2PS_PDF, GL2PS_SIMPLE_SORT, | ||
| // GL2PS_NO_OPENGL_CONTEXT | GL2PS_NO_BLENDING, | ||
| // GL_RGBA, 0, NULL, 0, 0, 0, 0, stream, 0); | ||
| // if (result != GL2PS_SUCCESS) | ||
| // { | ||
| // std::cerr << "gl2psBeginPage failed." << std::endl; | ||
| // return EXIT_FAILURE; | ||
| // } | ||
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| // // AddPolyPrimitive arguments: | ||
| // GL2PSvertex vertices[3]; // Vertices. | ||
| // GLint offset = 0; // line offset | ||
| // GLushort pattern = 0xffff; // glLineStipple pattern | ||
| // GLint factor = 1; // glLineStipple repeat factor | ||
| // GLfloat ofactor = 0.f; // glPolygonOffset factor | ||
| // GLfloat ounits = 0.f; // glPolygonOffset units | ||
| // GLfloat width = 1; // linewidth or pointsize | ||
| // // Something to do with gl2psEnable(GL2PS_POLYGON_BOUNDARY), which is not | ||
| // // implemented according to the docs. | ||
| // char boundary = 0; | ||
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| // // Point: | ||
| // setVertex(vertices[0], 200, 307.5, 0, 0.f, 0.f, 1.f, 1.f); | ||
| // gl2psAddPolyPrimitive(GL2PS_POINT, 1, vertices, offset, ofactor, ounits, | ||
| // pattern, factor, /*width=*/15, boundary); | ||
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| // // Line: | ||
| // // Note that the first vertex's color is used for the entire line. | ||
| // setVertex(vertices[0], 100, 50, 0, 1.f, 0.f, 0.f, 1.f); | ||
| // setVertex(vertices[1], 300, 50, 0, 0.f, 0.f, 1.f, 1.f); | ||
| // gl2psAddPolyPrimitive(GL2PS_LINE, 2, vertices, offset, ofactor, ounits, | ||
| // pattern, factor, width, boundary); | ||
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| // // Triangle: | ||
| // setVertex(vertices[0], 100, 100, 0, 1.f, 0.f, 0.f, 1.f); | ||
| // setVertex(vertices[1], 300, 100, 0, 0.f, 1.f, 0.f, 1.f); | ||
| // setVertex(vertices[2], 200, 300, 0, 0.f, 0.f, 1.f, 1.f); | ||
| // gl2psAddPolyPrimitive(GL2PS_TRIANGLE, 3, vertices, offset, ofactor, ounits, | ||
| // pattern, factor, width, boundary); | ||
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| // // Text: | ||
| // setVertex(vertices[0], 200, 325, 0, 0.f, 0.f, 0.f, 1.f); | ||
| // gl2psForceRasterPos(vertices); | ||
| // float rgba[4] = {1.0, 0.0, 0.0, 1.0}; | ||
| //// gl2psTextOptColor("1", "Helvetica", 12, GL2PS_TEXT_C, 0.f, rgba); | ||
| //// gl2psTextOptColor("2", "Helvetica", 12, GL2PS_TEXT_CL, 0.f, rgba); | ||
| //// gl2psTextOptColor("3", "Helvetica", 12, GL2PS_TEXT_CR, 0.f, rgba); | ||
| //// gl2psTextOptColor("4", "Helvetica", 12, GL2PS_TEXT_B, 0.f, rgba); | ||
| //// gl2psTextOptColor("5", "Helvetica", 12, GL2PS_TEXT_BL, 0.f, rgba); | ||
| //// gl2psTextOptColor("6", "Helvetica", 12, GL2PS_TEXT_BR, 0.f, rgba); | ||
| //// gl2psTextOptColor("7", "Helvetica", 12, GL2PS_TEXT_T, 0.f, rgba); | ||
| //// gl2psTextOptColor("8", "Helvetica", 12, GL2PS_TEXT_TL, 0.f, rgba); | ||
| //// gl2psTextOptColor("9", "Helvetica", 12, GL2PS_TEXT_TR, 0.f, rgba); | ||
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| // // DrawPixels: | ||
| // std::vector<float> pixelData; | ||
| // generatePixelData(pixelData, 100, 100); | ||
| // setVertex(vertices[0], 275, 275, 0, 0.f, 0.f, 0.f, 0.f); | ||
| // gl2psForceRasterPos(vertices); | ||
| // gl2psDrawPixels(100, 100, 0, 0, GL_RGBA, GL_FLOAT, &pixelData[0]); | ||
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| // result = gl2psEndPage(); | ||
| // if (result != GL2PS_SUCCESS) | ||
| // { | ||
| // std::cerr << "gl2psEndPage failed." << std::endl; | ||
| // return EXIT_FAILURE; | ||
| // } | ||
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| // fclose(stream); | ||
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| return EXIT_SUCCESS; | ||
| } |
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