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Removed Matplot_vtk

add-code-of-conduct-1
Trevor Irons 6 jaren geleden
bovenliggende
commit
3e8bf9f07a
3 gewijzigde bestanden met toevoegingen van 0 en 1337 verwijderingen
  1. 0
    3
      Matplot_vtk/CMakeLists.txt
  2. 0
    700
      Matplot_vtk/matplot.cpp
  3. 0
    634
      Matplot_vtk/matplot.h

+ 0
- 3
Matplot_vtk/CMakeLists.txt Bestand weergeven

@@ -1,3 +0,0 @@
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-add_library( matplot matplot.cpp )
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-target_link_libraries(matplot ${VTK_LIBRARIES})
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-install ( TARGETS matplot DESTINATION ${CMAKE_INSTALL_PREFIX}/lib )

+ 0
- 700
Matplot_vtk/matplot.cpp Bestand weergeven

@@ -1,700 +0,0 @@
1
-#ifdef LEMMAUSEVTK
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-
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-#include "matplot.h"
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-
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-#include "vtkActor.h"
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-#include "vtkAxesActor.h"
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-#include "vtkCamera.h"
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-#include "vtkCaptionActor2D.h"
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-#include "vtkContourFilter.h"
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-#include "vtkDataSetMapper.h"
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-#include "vtkGlyph3D.h"
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-#include "vtkGlyphSource2D.h"
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-#include "vtkOutlineFilter.h"
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-#include "vtkPolyData.h"
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-#include "vtkPolyDataMapper.h"
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-#include "vtkPNGWriter.h"
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-#include "vtkProperty.h"
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-#include "vtkProperty2D.h"
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-#include "vtkRectilinearGridGeometryFilter.h"
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-#include "vtkRenderWindow.h"
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-#include "vtkRenderWindowInteractor.h"
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-#include "vtkStructuredGridGeometryFilter.h"
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-#include "vtkScalarBarActor.h"
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-#include "vtkTextProperty.h"
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-#include "vtkTubeFilter.h"
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-#include "vtkWarpScalar.h"
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-#include "vtkWindowToImageFilter.h"
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-#include "vtkRenderLargeImage.h"
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-
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-#include "vtkTextActor.h"
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-#include "vtkVectorText.h"
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-#include "vtkTransformPolyDataFilter.h"
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-#include "vtkTransform.h"
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-#include "vtkFollower.h"
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-
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-#include "vtkAxisActor2D.h"
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-//#include "vtkCubeAxesActor.h"
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-#include "vtkCubeAxesActor2D.h"
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-
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-using namespace matplot;
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-
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-/// Default constructor
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-Plot2D_VTK::Plot2D_VTK(std::string x_label, std::string y_label,
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-		       int xpix, int ypix, bool semilogX)
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-{
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-    semilogx = semilogX;
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-    xPix = xpix;
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-    yPix = ypix;
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-
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-    plot_no = 0;
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-
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-    // set up the renderer
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-    rend = vtkRenderer::New();
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-    rend->SetBackground(1., 1., 1.);
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-
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-    // set up the xy plot
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-    xyplot = vtkXYPlotActor::New();
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-
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-    xyplot->GetProperty()->SetColor(0.0, 0.0, 0.0);
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-
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-    xyplot->SetBorder(10);
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-    xyplot->GetPositionCoordinate()->SetValue(0.0, 0.0, 0);
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-    xyplot->GetPosition2Coordinate()->SetValue(1.0, 1.0, 0);
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-
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-    xyplot->GetProperty()->SetLineWidth(1);
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-    xyplot->GetProperty()->SetPointSize(5);
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-
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-    xyplot->PlotPointsOff();
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-    xyplot->PlotLinesOff();
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-    xyplot->PlotCurvePointsOn();
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-    xyplot->PlotCurveLinesOn();
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-
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-    xyplot->SetXValuesToArcLength();
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-
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-    xyplot->SetLabelFormat("%2.1f");
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-    xyplot->SetTitle("");
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-    xyplot->SetXTitle(x_label.c_str());
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-    xyplot->SetYTitle(y_label.c_str());
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-
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-    if (semilogx) {
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-        xyplot->LogxOn();
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-    }
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-
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-    vtkTextProperty* text_prop = xyplot->GetTitleTextProperty();
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-    text_prop->SetColor(0.0, 0.0, 0.0);
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-    text_prop->SetFontFamilyToArial();
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-    xyplot->SetAxisTitleTextProperty(text_prop);
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-    xyplot->SetAxisLabelTextProperty(text_prop);
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-    xyplot->SetTitleTextProperty(text_prop);
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-}
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-
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-/// Destructor
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-Plot2D_VTK::~Plot2D_VTK()
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-{
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-    xyplot->Delete();
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-    rend->Delete();
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-}
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-
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-/// Render current figure to screen
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-void Plot2D_VTK::show()
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-{
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-    rend->AddActor(xyplot);
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-    render_interactive(rend,xPix,yPix);
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-}
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-
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-/// Render current figure to file
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-void Plot2D_VTK::draw_to_png(std::string filename)
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-{
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-    rend->AddActor(xyplot);
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-    render_to_png(rend,xPix,yPix,filename);
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-}
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-//==============================================================================
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-
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-Surf_VTK::Surf_VTK(int px, int py)
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-{
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-    has_data = false;
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-    Lxy = -1;
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-    Lz = -1;
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-    xPix = px;
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-    yPix = py;
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-
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-    gridfunc = vtkStructuredGrid::New();
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-    rend = vtkRenderer::New();
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-}
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-
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-/// Destructor
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-Surf_VTK::~Surf_VTK()
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-{
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-    gridfunc->Delete();
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-    rend->Delete();
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-}
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-
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-/// Clear plot data before reuse
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-void Surf_VTK::purge()
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-{
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-    assert(has_data);
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-    gridfunc->Delete();
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-    rend->Delete();
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-    gridfunc = vtkStructuredGrid::New();
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-    rend = vtkRenderer::New();
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-    has_data = false;
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-    Lxy = -1;
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-    Lz = -1;
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-}
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-
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-void Surf_VTK::renderer(bool draw_axes, bool draw_colorbar, bool draw_box,
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-			bool do_warp)
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-{
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-    assert(has_data);
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-
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-    // filter to geometry primitive
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-    vtkStructuredGridGeometryFilter *geometry =
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-	vtkStructuredGridGeometryFilter::New();
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-    geometry->SetInputData(gridfunc);
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-
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-    // warp to fit in box
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-    vtkWarpScalar *warp = vtkWarpScalar::New();
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-    if (do_warp)
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-    {
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-	double scale = Lxy/Lz;
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-	warp->SetInputConnection(geometry->GetOutputPort());
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-	warp->XYPlaneOn();
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-	warp->SetScaleFactor(scale);
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-    }
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-
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-    // map gridfunction
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-    vtkPolyDataMapper *mapper = vtkPolyDataMapper::New();
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-    if (do_warp)
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-	mapper->SetInputConnection(warp->GetOutputPort());
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-    else
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-	mapper->SetInputConnection(geometry->GetOutputPort());
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-
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-    double tmp[2];
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-    gridfunc->GetScalarRange(tmp);
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-    mapper->SetScalarRange(tmp[0], tmp[1]);
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-
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-    // create plot surface actor
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-    vtkActor *surfplot = vtkActor::New();
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-    surfplot->SetMapper(mapper);
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-
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-    // create outline
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-    vtkOutlineFilter *outlinefilter = vtkOutlineFilter::New();
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-    if (do_warp)
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-	outlinefilter->SetInputConnection(warp->GetOutputPort());
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-    else
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-	outlinefilter->SetInputConnection(geometry->GetOutputPort());
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-    vtkPolyDataMapper *outlineMapper = vtkPolyDataMapper::New();
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-    outlineMapper->SetInputConnection(outlinefilter->GetOutputPort());
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-    vtkActor *outline = vtkActor::New();
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-    outline->SetMapper(outlineMapper);
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-    outline->GetProperty()->SetColor(0, 0, 0);
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-
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-    // create axes
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-    vtkAxesActor* axes = vtkAxesActor::New();
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-    axes->SetShaftTypeToCylinder();
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-    axes->SetNormalizedShaftLength( 0.85, 0.85, 0.85);
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-    axes->SetNormalizedTipLength( 0.15, 0.15, 0.15);
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-    axes->SetCylinderRadius( 0.500 * axes->GetCylinderRadius() );
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-    axes->SetConeRadius( 1.025 * axes->GetConeRadius() );
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-    axes->SetSphereRadius( 1.500 * axes->GetSphereRadius() );
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-    vtkTextProperty* text_prop_ax = axes->GetXAxisCaptionActor2D()->
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-	GetCaptionTextProperty();
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-    text_prop_ax->SetColor(0.0, 0.0, 0.0);
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-    text_prop_ax->SetFontFamilyToArial();
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-    text_prop_ax->SetFontSize(8);
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-    axes->GetYAxisCaptionActor2D()->GetCaptionTextProperty()->
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-	ShallowCopy(text_prop_ax);
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-    axes->GetZAxisCaptionActor2D()->GetCaptionTextProperty()->
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-	ShallowCopy(text_prop_ax);
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-
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-    // create colorbar
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-    vtkScalarBarActor *colorbar = vtkScalarBarActor::New();
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-    colorbar->SetLookupTable(mapper->GetLookupTable());
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-    colorbar->SetWidth(0.085);
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-    colorbar->SetHeight(0.9);
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-    colorbar->SetPosition(0.9, 0.1);
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-    vtkTextProperty* text_prop_cb = colorbar->GetLabelTextProperty();
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-    text_prop_cb->SetColor(1.0, 1.0, 1.0);
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-    colorbar->SetLabelTextProperty(text_prop_cb);
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-
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-    // renderer
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-    rend->AddActor(surfplot);
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-    if (draw_box)
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-	rend->AddActor(outline);
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-    if (draw_axes)
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-	rend->AddActor(axes);
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-    if (draw_colorbar)
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-	    rend->AddActor(colorbar);
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-
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-    rend->SetBackground(0.25, 0.25, 0.25);
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-
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-    // renderer is now set up!
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-
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-    // clean up
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-    colorbar->Delete();
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-    warp->Delete();
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-    axes->Delete();
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-    outline->Delete();
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-    outlinefilter->Delete();
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-    outlineMapper->Delete();
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-    surfplot->Delete();
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-    mapper->Delete();
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-    geometry->Delete();
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-}
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-//==============================================================================
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-
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-/// Default constructor
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-Contour_VTK::Contour_VTK(int px, int py)
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-{
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-	XScale = LINEAR;
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-	YScale = LINEAR;
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-
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-    has_data = false;
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-    xPix = px;
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-    yPix = py;
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-
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-    gridfunc = vtkRectilinearGrid::New();
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-    rend = vtkRenderer::New();
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-}
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-
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-/// Default constructor
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-Contour_VTK::Contour_VTK(int px, int py, SCALE xsc, SCALE ysc)
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-{
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-	XScale = xsc;
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-	YScale = ysc;
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-
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-	xlabel  = "x";
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-	ylabel  = "y";
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-
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-    has_data = false;
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-    xPix = px;
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-    yPix = py;
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-
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-    gridfunc = vtkRectilinearGrid::New();
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-    rend = vtkRenderer::New();
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-}
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-
278
-/// Destructor
279
-Contour_VTK::~Contour_VTK()
280
-{
281
-    gridfunc->Delete();
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-    rend->Delete();
283
-}
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-
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-/// Clear plot data before reuse
286
-void Contour_VTK::purge()
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-{
288
-    assert(has_data);
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-    gridfunc->Delete();
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-    rend->Delete();
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-    gridfunc = vtkRectilinearGrid::New();
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-    rend = vtkRenderer::New();
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-    has_data = false;
294
-}
295
-
296
-/// Set labels for contour plots
297
-void Contour_VTK::SetXLabel(const std::string &xlab) {
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-	xlabel = xlab;
299
-}
300
-
301
-void Contour_VTK::SetYLabel(const std::string &ylab ) {
302
-	ylabel = ylab;
303
-}
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-
305
-void Contour_VTK::renderer(bool draw_colorbar, bool draw_surf, int lines)
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-{
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-    assert(has_data);
308
-
309
-    // filter to geometry primitive
310
-    vtkRectilinearGridGeometryFilter *geometry =
311
-	vtkRectilinearGridGeometryFilter::New();
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-    geometry->SetInputData(gridfunc);
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-
314
-    // map gridfunction
315
-    vtkPolyDataMapper *mapper = vtkPolyDataMapper::New();
316
-    mapper->SetInputConnection(geometry->GetOutputPort());
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-
318
-    double tmp[2];
319
-    gridfunc->GetScalarRange(tmp);
320
-    mapper->SetScalarRange(tmp[0], tmp[1]);
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-
322
-    // create plot surface actor
323
-    vtkActor *surfplot = vtkActor::New();
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-    surfplot->SetMapper(mapper);
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-
326
-    // create contour lines (10 lines)
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-    vtkContourFilter *contlines = vtkContourFilter::New();
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-    contlines->SetInputConnection(geometry->GetOutputPort());
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-    double tempdiff = (tmp[1]-tmp[0])/(10*lines);
330
-    contlines->GenerateValues(lines, tmp[0]+tempdiff, tmp[1]-tempdiff);
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-    vtkPolyDataMapper *contourMapper = vtkPolyDataMapper::New();
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-    contourMapper->SetInputConnection(contlines->GetOutputPort());
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-    if (draw_surf)
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-	contourMapper->ScalarVisibilityOff();
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-    else
336
-	contourMapper->SetScalarRange(tmp[0], tmp[1]);
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-    vtkActor *contours = vtkActor::New();
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-    contours->SetMapper(contourMapper);
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-	contours->GetProperty()->SetOpacity(.25);
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-	contours->GetProperty()->SetColor(0.5,0.5,0.5);
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-
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-    // create outline
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-    vtkOutlineFilter *outlinefilter = vtkOutlineFilter::New();
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-    outlinefilter->SetInputConnection(geometry->GetOutputPort());
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-    vtkPolyDataMapper *outlineMapper = vtkPolyDataMapper::New();
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-    outlineMapper->SetInputConnection(outlinefilter->GetOutputPort());
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-    vtkActor *outline = vtkActor::New();
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-    outline->SetMapper(outlineMapper);
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-    outline->GetProperty()->SetColor(0, 0, 0);
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-
351
-    // create colorbar
352
-    vtkScalarBarActor *colorbar = vtkScalarBarActor::New();
353
-    if (draw_surf)
354
-	colorbar->SetLookupTable(mapper->GetLookupTable());
355
-    else
356
-	colorbar->SetLookupTable(contourMapper->GetLookupTable());
357
-//
358
-    colorbar->SetWidth(0.085);
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-    colorbar->SetHeight(0.9);
360
-    colorbar->SetPosition(0.9, 0.1);
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-    vtkTextProperty* text_prop_cb = colorbar->GetLabelTextProperty();
362
-    text_prop_cb->SetColor(1.0, 1.0, 1.0);
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-    colorbar->SetLabelTextProperty(text_prop_cb);
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-
365
-	double xrange[2];
366
- 	double yrange[2];
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- 	gridfunc->GetXCoordinates()->GetRange(xrange);
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- 	gridfunc->GetYCoordinates()->GetRange(yrange);
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- 	vtkCubeAxesActor2D  *caxis = vtkCubeAxesActor2D::New();
370
-
371
-	caxis->ZAxisVisibilityOff();
372
-	caxis->SetXLabel(xlabel.c_str());
373
-	caxis->SetYLabel(ylabel.c_str());
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-
375
-	vtkCamera* mycam = rend->MakeCamera(); // vtkCamera::New();
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-	//rend->SetActiveCamera(mycam);
377
-  	caxis->SetBounds( xrange[0], xrange[1], yrange[0], yrange[1], 0, 0);
378
-  	caxis->SetRanges( xrange[0], xrange[1], ymin, ymax, 0, 0);
379
-	caxis->SetUseRanges(1);
380
-
381
-  	caxis->SetCamera( mycam );
382
-	caxis->SetNumberOfLabels(6);
383
-	// doesn't work, rotate y label 90 degrees
384
-	caxis->GetYAxisActor2D()->GetTitleTextProperty()->SetOrientation(90.);
385
-   	rend->AddActor(caxis);
386
-
387
-	mycam->Delete();
388
-	caxis->Delete();
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-
390
-	// handdrwan label
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-// 	// X label
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-// 	vtkVectorText                     *xlabel = vtkVectorText::New();
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-// 	vtkTransformPolyDataFilter  *transxlabel  = vtkTransformPolyDataFilter::New();
394
-// 	vtkTransform                      *trans  = vtkTransform::New();
395
-// 	vtkPolyDataMapper               *xlabmap  = vtkPolyDataMapper::New();
396
-// 	vtkFollower                     *xlabact  = vtkFollower::New();
397
-	// locate and rotate as needed
398
- 	//double yranget = std::abs(yrange[1]-yrange[0]);
399
-	//double xranget = std::abs(xrange[1]-xrange[0]);
400
-// 	trans->Identity();
401
-// 	trans->Scale(5,5,5);  // TODO, is 5 always OK???
402
-// 	transxlabel->SetTransform(trans);
403
-// 	transxlabel->SetInputConnection(xlabel->GetOutputPort());
404
-// 	// TODO input name
405
-// 	xlabel->SetText("Frequency [Hz]");
406
-// 	transxlabel->SetInputConnection(xlabel->GetOutputPort());
407
-// 	xlabmap->SetInputConnection(transxlabel->GetOutputPort());
408
-// 	xlabact->SetMapper(xlabmap);
409
-// 	// centre between axis
410
-// 	xlabact->SetPosition( (xrange[0]+xrange[1])/2 - xlabact->GetCenter()[0],
411
-// 					       yrange[0]-.2*yranget, 0 );
412
-// 	//rend->AddActor(xlabact);
413
-// 	// Y label
414
-// 	vtkVectorText                     *ylabel = vtkVectorText::New();
415
-// 	vtkTransformPolyDataFilter  *transylabel  = vtkTransformPolyDataFilter::New();
416
-// 	vtkTransform                     *ytrans  = vtkTransform::New();
417
-// 	vtkPolyDataMapper               *ylabmap  = vtkPolyDataMapper::New();
418
-// 	vtkFollower                     *ylabact  = vtkFollower::New();
419
-// 	// locate and rotate as needed
420
-// 	ytrans->Identity();
421
-// 	ytrans->Scale(5,5,5); // TODO don't hard code, calc from window size maybe??
422
-// 	ytrans->RotateZ(90);
423
-// 	transylabel->SetTransform(ytrans);
424
-// 	transylabel->SetInputConnection(ylabel->GetOutputPort());
425
-//
426
-// 	ylabel->SetText("Pulse moment [A sec]");
427
-// 	transylabel->SetInputConnection(ylabel->GetOutputPort());
428
-// 	ylabmap->SetInputConnection(transylabel->GetOutputPort());
429
-// 	ylabact->SetMapper(ylabmap);
430
-// 	ylabact->SetPosition( xrange[0]-.2*xranget,
431
-// 					      (yrange[0]+yrange[1])/2 - ylabact->GetCenter()[1],
432
-// 						  0 );
433
-// 	//rend->AddActor(ylabact);
434
-
435
-    if (draw_surf)
436
- 	rend->AddActor(surfplot);
437
-
438
-	rend->AddActor(contours);
439
-	rend->AddActor(outline);
440
-	if (draw_colorbar) {
441
-		rend->AddActor(colorbar);
442
- 	}
443
-
444
-	rend->SetBackground(0.25, 0.25, 0.25);
445
-
446
-// 	double xrange[2];
447
-// 	double yrange[2];
448
-// 	gridfunc->GetXCoordinates()->GetRange(xrange);
449
-// 	gridfunc->GetYCoordinates()->GetRange(yrange);
450
-// 	vtkCubeAxesActor	 *caxis = vtkCubeAxesActor::New();
451
-// 	caxis->ZAxisVisibilityOff();
452
-// 	caxis->SetCamera(rend->GetActiveCamera());
453
-// 	caxis->SetBounds( xrange[0], xrange[1], yrange[0], yrange[1], 0, 1 );
454
-//  	rend->AddActor(caxis);
455
-
456
- 	//rend->AddActor(yaxis);
457
-//     // clean up
458
-// 	xlabel->Delete();
459
-// 	transxlabel->Delete();
460
-// 	trans->Delete();
461
-// 	xlabmap->Delete();
462
-// 	xlabact->Delete();
463
-//
464
-// 	ylabel->Delete();
465
-// 	transylabel->Delete();
466
-// 	ytrans->Delete();
467
-// 	ylabmap->Delete();
468
-// 	ylabact->Delete();
469
-
470
-	// renderer is now set up!
471
-	//caxis->Delete();
472
-	//yaxis->Delete();
473
-
474
-    contours->Delete();
475
-    contlines->Delete();
476
-    contourMapper->Delete();
477
-    outline->Delete();
478
-    outlinefilter->Delete();
479
-    outlineMapper->Delete();
480
-    colorbar->Delete();
481
-    surfplot->Delete();
482
-    mapper->Delete();
483
-    geometry->Delete();
484
-
485
-}
486
-//==============================================================================
487
-
488
-/// Default constructor
489
-Quiver_VTK::Quiver_VTK(int px, int py)
490
-{
491
-    has_data = false;
492
-    xPix = px;
493
-    yPix = py;
494
-
495
-    gridfunc = vtkRectilinearGrid::New();
496
-    rend = vtkRenderer::New();
497
-}
498
-
499
-/// Destructor
500
-Quiver_VTK::~Quiver_VTK()
501
-{
502
-    gridfunc->Delete();
503
-    rend->Delete();
504
-}
505
-
506
-/// Clear plot data before reuse
507
-void Quiver_VTK::purge()
508
-{
509
-    assert(has_data);
510
-    gridfunc->Delete();
511
-    rend->Delete();
512
-    gridfunc = vtkRectilinearGrid::New();
513
-    rend = vtkRenderer::New();
514
-    has_data = false;
515
-}
516
-
517
-void Quiver_VTK::renderer(double s)
518
-{
519
-    assert(has_data);
520
-
521
-    // filter to geometry primitive
522
-    vtkRectilinearGridGeometryFilter *geometry =
523
-	vtkRectilinearGridGeometryFilter::New();
524
-    geometry->SetInputData(gridfunc);
525
-
526
-    // make a vector glyph
527
-    vtkGlyphSource2D* vec = vtkGlyphSource2D::New();
528
-    vec->SetGlyphTypeToArrow();
529
-    vec->SetScale(s);
530
-    vec->FilledOff();
531
-
532
-    vtkGlyph3D* glyph = vtkGlyph3D::New();
533
-    glyph->SetInputConnection(geometry->GetOutputPort());
534
-    glyph->SetSourceConnection(vec->GetOutputPort());
535
-    glyph->SetColorModeToColorByScalar();
536
-
537
-    // map gridfunction
538
-    vtkPolyDataMapper *mapper = vtkPolyDataMapper::New();
539
-    mapper->SetInputConnection(glyph->GetOutputPort());
540
-
541
-    double tmp[2];
542
-    gridfunc->GetScalarRange(tmp);
543
-    mapper->SetScalarRange(tmp[0], tmp[1]);
544
-
545
-    // create plot quiver actor
546
-    vtkActor *quiver_actor = vtkActor::New();
547
-    quiver_actor->SetMapper(mapper);
548
-
549
-    // create colorbar
550
-    vtkScalarBarActor *colorbar = vtkScalarBarActor::New();
551
-    colorbar->SetLookupTable(mapper->GetLookupTable());
552
-    colorbar->SetWidth(0.085);
553
-    colorbar->SetHeight(0.9);
554
-    colorbar->SetPosition(0.9, 0.1);
555
-    vtkTextProperty* text_prop_cb = colorbar->GetLabelTextProperty();
556
-    text_prop_cb->SetColor(1.0, 1.0, 1.0);
557
-    colorbar->SetLabelTextProperty(text_prop_cb);
558
-
559
-    // create outline
560
-    vtkOutlineFilter *outlinefilter = vtkOutlineFilter::New();
561
-    outlinefilter->SetInputConnection(geometry->GetOutputPort());
562
-    vtkPolyDataMapper *outlineMapper = vtkPolyDataMapper::New();
563
-    outlineMapper->SetInputConnection(outlinefilter->GetOutputPort());
564
-    vtkActor *outline = vtkActor::New();
565
-    outline->SetMapper(outlineMapper);
566
-    outline->GetProperty()->SetColor(0, 0, 0);
567
-
568
-    // add actors to renderer
569
-    rend->AddActor(quiver_actor);
570
-    rend->AddActor(colorbar);
571
-    rend->AddActor(outline);
572
-    rend->SetBackground(0.25, 0.25, 0.25);
573
-
574
-    // renderer is now set up!
575
-
576
-    // clean up
577
-    outline->Delete();
578
-    outlinefilter->Delete();
579
-    outlineMapper->Delete();
580
-    vec->Delete();
581
-    glyph->Delete();
582
-    colorbar->Delete();
583
-    quiver_actor->Delete();
584
-    mapper->Delete();
585
-
586
-}
587
-
588
-//==============================================================================
589
-
590
-/** Start interactive rendereing (default camera).
591
- * Sets resolution to (xPix,yPix)
592
- */
593
-void matplot::render_interactive(vtkRenderer *rend, int xPix, int yPix)
594
-{
595
-	vtkRenderWindow *renWin = vtkRenderWindow::New();
596
-    vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
597
-    renWin->AddRenderer(rend);
598
-    iren->SetRenderWindow(renWin);
599
-    renWin->SetSize(xPix, yPix);
600
-
601
-	// makes first frame look reasonable interactive
602
-	renWin->Render();
603
-	renWin->Start();
604
-
605
-    // Start interactive rendering
606
-    iren->Initialize();
607
-    iren->Start();
608
-    iren->Disable();
609
-	iren->Delete();
610
-    renWin->Delete();
611
-}
612
-
613
-/** Start interactive rendereing (manual camera placement).
614
- * Sets resolution to (xPix,yPix)
615
- */
616
-void matplot::render_interactive_cam(vtkRenderer *rend, int xPix, int yPix,
617
-				     double cam[3], double focal[3])
618
-{
619
-    rend->GetActiveCamera()->SetViewUp(0, 0, 1);
620
-    rend->GetActiveCamera()->SetPosition(cam);
621
-    rend->GetActiveCamera()->SetFocalPoint(focal);
622
-
623
-    vtkRenderWindow *renWin = vtkRenderWindow::New();
624
-    vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
625
-    renWin->AddRenderer(rend);
626
-    iren->SetRenderWindow(renWin);
627
-    renWin->SetSize(xPix, yPix);
628
-
629
-    // Start interactive rendering
630
-    iren->Initialize();
631
-    iren->Start();
632
-
633
-    iren->Delete();
634
-    renWin->Delete();
635
-}
636
-
637
-/// Renders scene to PNG (default camera)
638
-void matplot::render_to_png(vtkRenderer *rend, int xPix, int yPix,
639
-			    std::string fname)
640
-{
641
-    vtkRenderWindow *renWin = vtkRenderWindow::New();
642
-    renWin->AddRenderer(rend);
643
-    renWin->SetSize(xPix, yPix);
644
-    renWin->Render();
645
-    rend->Render();
646
-
647
-    vtkRenderLargeImage* renderLarge = vtkRenderLargeImage::New();
648
-        renderLarge->SetInput(rend);
649
-        renderLarge->SetMagnification(1);
650
-
651
-    vtkPNGWriter *pngfile = vtkPNGWriter::New();
652
-        pngfile->SetFileName(fname.c_str());
653
-        pngfile->SetInputConnection(renderLarge->GetOutputPort());
654
-        pngfile->Update();
655
-        pngfile->Update();
656
-
657
-    pngfile->Update();
658
-    pngfile->Write();
659
-
660
-    renderLarge->Delete();
661
-    pngfile->Delete();
662
-    renWin->Delete();
663
-}
664
-
665
-/// Renders scene to PNG (manual camera placement)
666
-void matplot::render_to_png_cam(vtkRenderer *rend, int xPix, int yPix,
667
-				std::string fname, double cam[3],
668
-				double focal[3])
669
-{
670
-    rend->GetActiveCamera()->SetViewUp(0, 0, 1);
671
-    rend->GetActiveCamera()->SetPosition(cam);
672
-    rend->GetActiveCamera()->SetFocalPoint(focal);
673
-
674
-    vtkRenderWindow *renWin = vtkRenderWindow::New();
675
-    renWin->AddRenderer(rend);
676
-    renWin->SetSize(xPix, yPix);
677
-
678
-    vtkRenderLargeImage* renderLarge = vtkRenderLargeImage::New();
679
-        renderLarge->SetInput(rend);
680
-        renderLarge->SetMagnification(1);
681
-
682
-    //vtkWindowToImageFilter *w2i = vtkWindowToImageFilter::New();
683
-    vtkPNGWriter *pngfile = vtkPNGWriter::New();
684
-        //pngfile->SetInputConnection(w2i->GetOutputPort());
685
-        pngfile->SetInputConnection(renderLarge->GetOutputPort());
686
-    pngfile->SetFileName(fname.c_str());
687
-
688
-    //w2i->SetInput(renWin);
689
-    //w2i->Update();
690
-
691
-    renWin->Render();
692
-    pngfile->Write();
693
-
694
-    //w2i->Delete();
695
-    renderLarge->Delete();
696
-    pngfile->Delete();
697
-    renWin->Delete();
698
-}
699
-
700
-#endif

+ 0
- 634
Matplot_vtk/matplot.h Bestand weergeven

@@ -1,634 +0,0 @@
1
-#ifndef __MATPLOT_VTK
2
-#define __MATPLOT_VTK
3
-
4
-/*
5
- * MatPlot_VTK
6
- *
7
- * Simple plotting of vectors and matrices based on
8
- * the VTK libraries.
9
- *
10
- * Four classes:
11
- * Plot2D_VTK  - 2d plotting akin to plot(x,y)
12
- * Surf_VTK    - Surface plotting akin to surf(x,y,z)
13
- * Contour_VTK - Contour plotting
14
- * Quiver_VTK  - Vector field plot
15
- *
16
- * See examples.cpp for usage instructions.
17
- *
18
- * These classes are released "as is", without any implied
19
- * warranty or fitness for any particular purpose.
20
- *
21
- * Dag Lindbo, dag@csc.kth.se, 2007-12-09
22
- */
23
-
24
-// matrix size functions
25
-// #include "ublas_dims.h"
26
-//#include "mtl4_dims.h"
27
-
28
-// system includes
29
-#include <assert.h>
30
-#include <string>
31
-#include <cmath>
32
-
33
-// vtk includes used by templates
34
-#include "vtkFloatArray.h"
35
-#include "vtkPointData.h"
36
-#include "vtkPoints.h"
37
-#include "vtkRectilinearGrid.h"
38
-#include "vtkRenderer.h"
39
-#include "vtkStructuredGrid.h"
40
-#include "vtkXYPlotActor.h"
41
-
42
-namespace matplot {
43
-
44
-	enum SCALE {LINEAR, LOG10};
45
-
46
-    void render_interactive(vtkRenderer *rend, int xPix, int yPix);
47
-
48
-	void render_interactive_camera(vtkRenderer *rend, int xPix, int yPix,
49
-					vtkCamera* mycam);
50
-
51
-    void render_interactive_cam(vtkRenderer *rend, int xPix, int yPix,
52
-				double cam[3], double focal[3]);
53
-
54
-    void render_to_png(vtkRenderer *rend, int xPix, int yPix,std::string fname);
55
-
56
-    void render_to_png_cam(vtkRenderer *rend, int xPix, int yPix,
57
-			   std::string fname, double cam[3], double focal[3]);
58
-
59
-    /** Plot vectors x versus y.
60
-     * Inspired by "plot" in Matlab.
61
-     *
62
-     * Notes:
63
-     *
64
-     * Call plot(x,y,<...>) multiple times before show() to
65
-     * get multiple curves in one figure.
66
-     *
67
-     * \author Dag Lindbo
68
-     */
69
-    class Plot2D_VTK {
70
-
71
-		public:
72
-
73
-			Plot2D_VTK(std::string x_label="x", std::string y_label="y",
74
-			   int xpix = 800, int ypix = 600, bool semilogx=false );
75
-			~Plot2D_VTK();
76
-
77
-			/** Insert curve x vs.\ y into plot.
78
-			 * - Default color is blue, {0 , 0, 1}.
79
-			 * - Default line style is solid line, "-".
80
-			 */
81
-			template<typename Vec_t>
82
-			void plot(const Vec_t &x, const Vec_t &y) {
83
-		    	double color[3] = { 0, 0, 1.0 };
84
-		    	plot(x, y, color, "-");
85
-			}
86
-
87
-			/** Insert curve x vs.\ y into plot (specify color and line style).
88
-			 * Color specification:
89
-			 * 		- RGB (normalized decimal), {0.32, 0.1, 0.0}
90
-			 *
91
-			 * Line style specification:
92
-			 * 		-	"-" 			solid line
93
-			 * 		-	"." 			dotted line
94
-			 * 		-	".-" or "-." 	solid line with dots
95
-			 */
96
-			template<typename Vec_t>
97
-			void plot(const Vec_t &x, const Vec_t &y, const double col[3],
98
-			  const std::string linespec) {
99
-
100
-				int i, N = x.size(), plot_points = 0, plot_lines = 0;
101
-
102
-			    vtkRectilinearGrid *curve;
103
-			    vtkFloatArray *yVal;
104
-			    vtkFloatArray *xVal;
105
-
106
-			    // determine line style
107
-			    if (linespec == "-")
108
-					plot_lines = 1;
109
-			    else if (linespec == ".")
110
-					plot_points = 1;
111
-			    else if (linespec == ".-" || linespec == "-.") {
112
-					plot_points = 1;
113
-					plot_lines = 1;
114
-			    }
115
-
116
-			    // put (x,y) into VTK FloatArrays
117
-			    xVal = vtkFloatArray::New();
118
-			    yVal = vtkFloatArray::New();
119
-
120
-			    for (i=0; i<N; i++) {
121
-					xVal->InsertNextTuple1(x[i]);
122
-					yVal->InsertNextTuple1(y[i]);
123
-			    }
124
-
125
-			    // Make a VTK Rectlinear grid from arrays
126
-			    curve = vtkRectilinearGrid::New();
127
-			    curve->SetDimensions(N, 1, 1);
128
-			    curve->SetXCoordinates(xVal);
129
-			    curve->GetPointData()->SetScalars(yVal);
130
-
131
-			    // attach gridfunction to plot
132
-			    xyplot->AddDataSetInput(curve);
133
-
134
-                if (semilogx) {
135
-                    xyplot->LogxOn();
136
-                }
137
-                // VTK doesn't have this? :(
138
-                //xyplot->LogyOn();
139
-
140
-			    // how to read data
141
-			    xyplot->SetXValuesToValue();
142
-
143
-			    // set attributes
144
-			    xyplot->SetPlotColor(plot_no, col[0], col[1], col[2]);
145
-			    xyplot->SetPlotLines(plot_no, plot_lines);
146
-			    xyplot->SetPlotPoints(plot_no, plot_points);
147
-
148
-			    plot_no++;
149
-
150
-			    xVal->Delete();
151
-			    yVal->Delete();
152
-			    curve->Delete();
153
-			}
154
-
155
-			void show();
156
-			void draw_to_png(std::string filename);
157
-
158
-    	private:
159
-
160
-			int xPix;
161
-			int yPix;
162
-            bool semilogx;
163
-			int plot_no;
164
-
165
-
166
-			vtkRenderer* rend;
167
-			vtkXYPlotActor* xyplot;
168
-    };
169
-
170
-    /** Plot z = f(x,y) surface.
171
-     * Inspired by "surf" in Matlab
172
-     *
173
-     * \author Dag Lindbo
174
-     */
175
-    class Surf_VTK
176
-    {
177
-    public:
178
-
179
-	Surf_VTK(int px = 800, int py = 600);
180
-	~Surf_VTK();
181
-
182
-	/** Create surface plot.
183
-	 * Matrix z, with respect to vectors x and y.
184
-	 */
185
-	template<typename Vec_t, typename Mat_t>
186
-	void surf(const Vec_t &x, const Vec_t &y, const Mat_t &z)
187
-	{
188
-	    geometry(x, y, z);
189
-	    renderer(false, true, true, false);
190
-	    render_interactive(rend, xPix, yPix);
191
-	}
192
-
193
-	/** Create surface plot.
194
-	 * Matrix z, with respect to vectors x and y.
195
-	 *
196
-	 * Warp z-axis to produce better fit:
197
-	 * - do_warp = true
198
-	 */
199
-	template<typename Vec_t, typename Mat_t>
200
-	void surf(const Vec_t &x, const Vec_t &y, const Mat_t &z, bool do_warp)
201
-	{
202
-	    geometry(x, y, z);
203
-	    renderer(false, true, true, do_warp);
204
-	    render_interactive(rend, xPix, yPix);
205
-	}
206
-
207
-	/** Create surface plot.
208
-	 * Matrix z, with respect to vectors x and y.
209
-	 *
210
-	 * Warp z-axis to produce better fit:
211
-	 * - do_warp = true
212
-	 *
213
-	 * Camera control:
214
-	 * - specify camera position: cam = { -15.0, 10.0, 12.0 }
215
-	 * - specify focal point: focal = { 0, 0, 0 }
216
-	 */
217
-	template<typename Vec_t, typename Mat_t>
218
-	void surf(const Vec_t &x, const Vec_t &y, const Mat_t &z, bool do_warp,
219
-		  double observer[3], double focal[3])
220
-	{
221
-	    geometry(x, y, z);
222
-	    renderer(false, true, true, do_warp);
223
-	    render_interactive_cam(rend, xPix, yPix, observer, focal);
224
-	}
225
-
226
-	/** Create surface plot and render to file
227
-	 * Matrix z, with respect to vectors x and y.
228
-	 *
229
-	 * Warp z-axis to produce better fit:
230
-	 * - do_warp = true
231
-	 *
232
-	 * Camera control:
233
-	 * - specify camera position: cam = { -15.0, 10.0, 12.0 }
234
-	 * - specify focal point: focal = { 0, 0, 0 }
235
-	 */
236
-	template<typename Vec_t, typename Mat_t>
237
-	void surf_to_file(const Vec_t &x, const Vec_t &y, const Mat_t &z,
238
-			  bool do_warp, std::string fname, double observer[3],
239
-			  double focal[3])
240
-	{
241
-	    geometry(x, y, z);
242
-	    renderer(false, true, true, do_warp);
243
-	    render_to_png_cam(rend, xPix, yPix, fname, observer, focal);
244
-	}
245
-
246
-	void purge();
247
-
248
-    private:
249
-	vtkStructuredGrid *gridfunc;
250
-	vtkRenderer *rend;
251
-
252
-	double Lxy, Lz;
253
-	bool has_data;
254
-
255
-	int xPix, yPix;
256
-
257
-	template<typename Vec_t, typename Mat_t>
258
-	void geometry(const Vec_t &x, const Vec_t &y, const Mat_t &z)
259
-	{
260
-	    const unsigned int Nx = x.size(); //vec_dim(x);
261
-	    const unsigned int Ny = y.size(); //vec_dim(y);
262
-	    unsigned int i, j, k;
263
-
264
-	    // make sure the input is ok and that this surfaceplot is free
265
-	    assert(Nx == z.rows() );
266
-	    assert(Ny == z.cols() );
267
-	    assert(!has_data);
268
-
269
-	    // determine x-y range of data
270
-	    if (x(Nx-1)-x(0) > y(Ny-1)-y(0))
271
-		Lxy = x(Nx-1)-x(0);
272
-	    else
273
-		Lxy = y(Ny-1)-y(0);
274
-	    double z_low = 10000, z_upp = -10000;
275
-
276
-	    // put data, z, into a 2D structured grid
277
-	    gridfunc->SetDimensions(Nx, Ny, 1);
278
-
279
-	    vtkPoints *points = vtkPoints::New();
280
-	    for (j = 0; j < Ny; j++)
281
-	    {
282
-		for (i = 0; i < Nx; i++)
283
-		{
284
-		    points->InsertNextPoint(x(i), y(j), z(i, j));
285
-
286
-		    if (z(i, j)< z_low)
287
-			z_low = z(i, j);
288
-		    if (z(i, j)> z_upp)
289
-			z_upp = z(i, j);
290
-		}
291
-	    }
292
-	    gridfunc->SetPoints(points);
293
-
294
-	    // get scalar field from z-values
295
-	    vtkFloatArray *colors = vtkFloatArray::New();
296
-	    colors->SetNumberOfComponents(1);
297
-	    colors->SetNumberOfTuples(Nx*Ny);
298
-	    k = 0;
299
-	    for (j = 0; j < Ny; j++)
300
-		for (i = 0; i < Nx; i++)
301
-		{
302
-		    colors->InsertComponent(k, 0, z(i, j));
303
-		    k++;
304
-		}
305
-
306
-	    gridfunc->GetPointData()->SetScalars(colors);
307
-
308
-	    points->Delete();
309
-	    colors->Delete();
310
-
311
-	    has_data = true;
312
-	    Lz = z_upp-z_low;
313
-	}
314
-
315
-	void renderer(bool, bool, bool, bool);
316
-
317
-    };
318
-
319
-    /** Plot contour lines for a function in the plane.
320
-     * Inspired by "contour" in Matlab
321
-     *
322
-     * \author Dag Lindbo
323
-     */
324
-
325
-	class Contour_VTK {
326
-
327
-		public:
328
-
329
-			Contour_VTK(int px = 800, int py = 600);
330
-
331
-			// specify linear or log on bars
332
-			Contour_VTK(int px = 800, int py = 600, SCALE xscale=LINEAR, SCALE
333
-							yscale=LINEAR);
334
-
335
-			~Contour_VTK();
336
-
337
-			/** Create contour plot.
338
-			 * Matrix z vs. vectors x and y.
339
-			 * Produces a default number of contour lines (10) and
340
-			 * colors the lines instead of the underlying surface.
341
-			 */
342
-			template<typename Vec_t, typename Mat_t>
343
-			void contour(const Vec_t &x, const Vec_t &y, const Mat_t &z) {
344
-				geometry(x, y, z);
345
-				renderer(true, false, 10);
346
-				render_interactive(rend, xPix, yPix);
347
-			}
348
-
349
-			/**Create contour plot.
350
-			 * Matrix z vs. vectors x and y.
351
-			 *
352
-			 * Number of contour lines:
353
-			 * - num_lines
354
-			 *
355
-			 * Coloring:
356
-			 * - draw_surf = false: color contour lines and omits underlying surface
357
-			 * - draw_surf = true:  draw contour lines white and color the
358
-			 *                      underlying surface
359
-			 */
360
-			template<typename Vec_t, typename Mat_t>
361
-			void contour(const Vec_t &x, const Vec_t &y, const Mat_t &z,
362
-				     bool draw_surf, int num_lines) {
363
-			    geometry(x, y, z);
364
-			    renderer(true, draw_surf, num_lines);
365
-			    render_interactive(rend, xPix, yPix);
366
-			}
367
-
368
-			/**Create contour plot and render to file.
369
-			 * Matrix z vs. vectors x and y.
370
-			 *
371
-			 * Number of contour lines:
372
-			 * - num_lines
373
-			 *
374
-			 * Coloring:
375
-			 * - draw_surf = false: color contour lines and omits underlying surface
376
-			 * - draw_surf = true:  draw contour lines white and color the
377
-			 *                      underlying surface
378
-			 */
379
-
380
-			template<typename Vec_t, typename Mat_t>
381
-			void contour_to_file(const Vec_t &x, const Vec_t &y, const Mat_t &z,
382
-				     bool draw_surf, int num_lines, std::string fname)
383
-			{
384
-			    geometry(x, y, z);
385
-			    renderer(true, draw_surf, num_lines);
386
-			    render_to_png(rend, xPix, yPix, fname);
387
-			}
388
-
389
-			void purge();
390
-
391
-			void SetXLabel(const std::string &xlab);
392
-			void SetYLabel(const std::string &ylab);
393
-
394
-		private:
395
-
396
-			SCALE XScale;
397
-			SCALE YScale;
398
-
399
-			vtkRectilinearGrid *gridfunc;
400
-			vtkRenderer *rend;
401
-
402
-			bool has_data;
403
-
404
-			int xPix, yPix;
405
-			double axscale;
406
-			double ymin;
407
-			double ymax;
408
-			std::string xlabel;
409
-			std::string ylabel;
410
-
411
-			template<typename Vec_t, typename Mat_t>
412
-
413
-			void geometry(const Vec_t &x, const Vec_t &y, const Mat_t &z) {
414
-
415
-		    	const unsigned int Nx = x.size();
416
-			    const unsigned int Ny = y.size();
417
-			    unsigned int i, j, k;
418
-
419
-			    // make sure the input is ok and that this contourplot is free
420
-	    		assert(Nx == z.rows() );
421
-	  	 	 	assert(Ny == z.cols() );
422
-	    		assert(!has_data);
423
-
424
-			    // x and y vectors go into vtkFloatArray
425
-			    vtkFloatArray *xcoord = vtkFloatArray::New();
426
-			    xcoord->SetNumberOfComponents(1);
427
-			    xcoord->SetNumberOfTuples(Nx);
428
-			    vtkFloatArray *ycoord = vtkFloatArray::New();
429
-			    ycoord->SetNumberOfComponents(1);
430
-			    ycoord->SetNumberOfTuples(Ny);
431
-
432
-				// We want the two axis to be equal, not squashed
433
-				// normalize axis ratio
434
-				axscale = 1.;
435
-				ymin = y.minCoeff();
436
-				ymax = y.maxCoeff();
437
-
438
-				if (YScale == LINEAR && XScale == LINEAR)
439
-					axscale =  (x.maxCoeff() - x.minCoeff()) /
440
-					           (y.maxCoeff() - y.minCoeff()) ;
441
-
442
-				if (YScale == LOG10 && XScale == LINEAR)
443
-					axscale = (           x.maxCoeff() -             x.minCoeff() ) /
444
-						      (std::log10(y.maxCoeff()) - std::log10(y.minCoeff())) ;
445
-
446
-				if (YScale == LOG10 && XScale == LOG10)
447
-					axscale =   ( (std::log10(x.maxCoeff()) - std::log10(x.minCoeff())) /
448
-						          (std::log10(y.maxCoeff()) - std::log10(y.minCoeff())) );
449
-
450
-				if (YScale == LINEAR && XScale == LOG10)
451
-					axscale =     (std::log10(x.maxCoeff()) - std::log10(x.minCoeff())) /
452
-						     (                y.maxCoeff()  -            y.minCoeff() ) ;
453
-
454
-				if (XScale == LINEAR) {
455
-			    	for (i=0; i<Nx; i++)
456
-						xcoord->InsertComponent(i, 0, x(i));
457
-				} else {
458
-			    	for (i=0; i<Nx; i++)
459
-						xcoord->InsertComponent(i, 0, std::log10(x(i)));
460
-				}
461
-
462
-				if (YScale == LINEAR) {
463
-			    	for (i=0; i<Ny; i++)
464
-						ycoord->InsertComponent(i, 0, axscale*y(i));
465
-				} else {
466
-			    	for (i=0; i<Ny; i++)
467
-						ycoord->InsertComponent(i, 0, axscale*std::log10(y(i)));
468
-				}
469
-
470
-
471
-			    // Create rectilinear grid
472
-			    gridfunc->SetDimensions(Nx, Ny, 1);
473
-			    gridfunc->SetXCoordinates(xcoord);
474
-			    gridfunc->SetYCoordinates(ycoord);
475
-
476
-			    // add z-values as scalars to grid
477
-			    vtkFloatArray *colors = vtkFloatArray::New();
478
-			    colors->SetNumberOfComponents(1);
479
-			    colors->SetNumberOfTuples(Nx*Ny);
480
-			    k = 0;
481
-			    for (j = 0; j < Ny; j++)
482
-				for (i = 0; i < Nx; i++) {
483
-			    	colors->InsertComponent(k, 0, z(i, j));
484
-			    	k++;
485
-				}
486
-
487
-		    	gridfunc->GetPointData()->SetScalars(colors);
488
-
489
-		    	colors->Delete();
490
-			    xcoord->Delete();
491
-			    ycoord->Delete();
492
-
493
-			    has_data = true;
494
-			}
495
-
496
-			void renderer(bool, bool, int);
497
-    };
498
-
499
-    /** Plot vector-valued function in the plane.
500
-     * Inspired by "quiver" in Matlab
501
-     *
502
-     * \author Dag Lindbo
503
-     */
504
-    class Quiver_VTK
505
-    {
506
-    public:
507
-
508
-	Quiver_VTK(int px = 800, int py = 600);
509
-	~Quiver_VTK();
510
-
511
-	/** Create vector arrow plot (quiver).
512
-	 * Pointwise vecotrs in matrices u and v, at grid
513
-	 * points given by vectors x and y. Color by magnitude.
514
-	 * Defaults to no scaling of arrow lengths.
515
-	 */
516
-	template<typename Vec_t, typename Mat_t>
517
-	void quiver(const Vec_t &x, const Vec_t &y, const Mat_t &u,
518
-		    const Mat_t &v)
519
-	{
520
-	    geometry(x, y, u, v);
521
-	    renderer(1.0);
522
-	    render_interactive(rend, xPix, yPix);
523
-	}
524
-
525
-	/** Create vector arrow plot (quiver).
526
-	 * Pointwise vectors in matrices u and v, at grid
527
-	 * points given by vectors x and y. Color by magnitude.
528
-	 *
529
-	 * Scales arrows by a factor s.
530
-	 */
531
-	template<typename Vec_t, typename Mat_t>
532
-	void quiver(const Vec_t &x, const Vec_t &y, const Mat_t &u,
533
-		    const Mat_t &v, double s)
534
-	{
535
-	    geometry(x, y, u, v);
536
-	    renderer(s);
537
-	    render_interactive(rend, xPix, yPix);
538
-	}
539
-
540
-	/** Create vector arrow plot (quiver) and render to file.
541
-	 * Pointwise vectors in matrices u and v, at grid
542
-	 * points given by vectors x and y. Color by magnitude
543
-	 *
544
-	 * Scales arrows by a factor s.
545
-	 */
546
-	template<typename Vec_t, typename Mat_t>
547
-	void quiver_to_file(const Vec_t &x, const Vec_t &y, const Mat_t &u,
548
-			    const Mat_t &v, double s, std::string filename)
549
-	{
550
-	    geometry(x, y, u, v);
551
-	    renderer(s);
552
-	    render_to_png(rend, xPix, yPix, filename);
553
-	}
554
-
555
-	void purge();
556
-
557
-    private:
558
-	vtkRectilinearGrid *gridfunc;
559
-	vtkRenderer *rend;
560
-
561
-	bool has_data;
562
-
563
-	int xPix, yPix;
564
-
565
-	template<typename Vec_t, typename Mat_t>
566
-	void geometry(const Vec_t& x, const Vec_t& y, const Mat_t& u,
567
-		      const Mat_t& v)
568
-	{
569
-	    const unsigned int Nx = x.size(); //vec_dim(x);
570
-	    const unsigned int Ny = y.size(); //vec_dim(y);
571
-	    unsigned int i, j, k;
572
-
573
-	    // make sure the input is ok and that this contourplot is free
574
-	    assert(Nx == u.rows());
575
-	    assert(Ny == u.cols());
576
-	    assert(Nx == v.rows());
577
-	    assert(Ny == v.cols());
578
-	    assert(!has_data);
579
-
580
-	    // x and y vectors go into vtkFloatArray
581
-	    vtkFloatArray *xcoord = vtkFloatArray::New();
582
-	    xcoord->SetNumberOfComponents(1);
583
-	    xcoord->SetNumberOfTuples(Nx);
584
-	    vtkFloatArray *ycoord = vtkFloatArray::New();
585
-	    ycoord->SetNumberOfComponents(1);
586
-	    ycoord->SetNumberOfTuples(Ny);
587
-
588
-	    for (i=0; i<Nx; i++)
589
-		xcoord->InsertComponent(i, 0, x(i));
590
-	    for (i=0; i<Ny; i++)
591
-		ycoord->InsertComponent(i, 0, y(i));
592
-
593
-	    // Create rectilinear grid
594
-	    gridfunc->SetDimensions(Nx, Ny, 1);
595
-	    gridfunc->SetXCoordinates(xcoord);
596
-	    gridfunc->SetYCoordinates(ycoord);
597
-
598
-	    // add magnitude of (u,v) as scalars to grid
599
-	    vtkFloatArray *colors = vtkFloatArray::New();
600
-	    colors->SetNumberOfComponents(1);
601
-	    colors->SetNumberOfTuples(Nx*Ny);
602
-
603
-	    // add vector (u,v) to grid
604
-	    vtkFloatArray *vectors = vtkFloatArray::New();
605
-	    vectors->SetNumberOfComponents(3);
606
-	    vectors->SetNumberOfTuples(Nx*Ny);
607
-
608
-	    k = 0;
609
-	    for (j = 0; j < Ny; j++)
610
-		for (i = 0; i < Nx; i++)
611
-		{
612
-		    colors->InsertTuple1(k,sqrt(u(i,j)*u(i,j)+v(i,j)*v(i,j)));
613
-		    vectors->InsertTuple3(k, u(i, j), v(i, j), 0.0);
614
-		    k++;
615
-		}
616
-
617
-	    gridfunc->GetPointData()->SetScalars(colors);
618
-	    gridfunc->GetPointData()->SetVectors(vectors);
619
-
620
-	    vectors->Delete();
621
-	    colors->Delete();
622
-	    xcoord->Delete();
623
-	    ycoord->Delete();
624
-
625
-	    has_data = true;
626
-	}
627
-
628
-	void renderer(double);
629
-
630
-    };
631
-
632
-}
633
-
634
-#endif

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