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124 lines
4.6 KiB
124 lines
4.6 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkCGMWriter.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm 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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// .NAME vtkCGMWriter - write polygonal data as a CGM file
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// .SECTION Description
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// vtkCGMWriter writes CGM (Computer Graphics Metafile) output. CGM is a 2D
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// graphics vector format typically used by large plotters. This writer can
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// handle vertices, lines, polygons, and triangle strips in any combination.
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// Colors are specified either 1) from cell scalars (assumed to be RGB or
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// RGBA color specification), 2) from a specified color; or 3) randomly
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// assigned colors.
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//
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// Note: During output of the polygonal data, triangle strips are converted
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// to triangles, and polylines to lines. Also, due to limitations in the CGM
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// color model, only 256 colors are available to the color palette.
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// .SECTION Caveats
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// The class vtkImageToPolyDataFilter is convenient for converting a raster
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// image into polygons (and color map) suitable for plotting with CGM.
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// .SECTION See Also
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// vtkPolyDataWriter vtkPointDataToCellData
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#ifndef __vtkCGMWriter_h
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#define __vtkCGMWriter_h
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#include "vtkPolyDataWriter.h"
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class vtkViewport;
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#define VTK_COLOR_MODE_DEFAULT 0
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#define VTK_COLOR_MODE_SPECIFIED_COLOR 1
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#define VTK_COLOR_MODE_RANDOM_COLORS 2
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class VTK_IO_EXPORT vtkCGMWriter : public vtkPolyDataWriter
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{
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public:
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// Description:
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// Instantiate with no viewport defined and sorting on. The default
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// resolution is 10,000, and the color mode is set to default.
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static vtkCGMWriter *New();
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vtkTypeRevisionMacro(vtkCGMWriter,vtkPolyDataWriter);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Specify a vtkViewport object to be used to transform the vtkPolyData
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// points into 2D coordinates. By default (no vtkViewport specified), the
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// point coordinates are generated by ignoring the z values. If a viewport
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// is defined, then the points are transformed into viewport coordinates.
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virtual void SetViewport(vtkViewport*);
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vtkGetObjectMacro(Viewport, vtkViewport);
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// Description:
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// Turn on/off the sorting of the cells via depth. If enabled, polygonal
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// cells will be sorted from back to front, i.e., a Painter's algorithm
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// sort.
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vtkSetMacro(Sort,int);
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vtkGetMacro(Sort,int);
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// Description:
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// Specify the resolution of the CGM file. This number is used to integerize
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// the maximum coordinate range of the plot file.
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vtkSetClampMacro(Resolution, int, 100, VTK_LARGE_INTEGER);
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vtkGetMacro(Resolution, int);
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// Description:
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// Control how output polydata is colored. By default (ColorModeToDefault),
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// if per cell colors are defined (unsigned chars of 1-4 components), then
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// the cells are colored with these values. (If point colors are defined
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// and cell colors are not, you can use vtkPointDataToCellData to convert
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// the point colors to cell colors.) Otherwise, by default, the cells are
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// set to the specified color. If ColorModeToSpecifiedColor is set, then
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// the primitives will all be set to this color. If ColorModeToRandomColors
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// is set, each cell will be randomly assigned a color.
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vtkSetMacro(ColorMode,int);
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vtkGetMacro(ColorMode,int);
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void SetColorModeToDefault() {
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this->SetColorMode(VTK_COLOR_MODE_DEFAULT);};
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void SetColorModeToSpecifiedColor() {
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this->SetColorMode(VTK_COLOR_MODE_SPECIFIED_COLOR);};
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void SetColorModeToRandomColors() {
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this->SetColorMode(VTK_COLOR_MODE_RANDOM_COLORS);};
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// Description:
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// Set/Get the specified color to color the polydata cells. This
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// color is only used when the color mode is set to
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// ColorModeToSpecifiedColor, or ColorModeToDefault is set and no
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// cell colors are specified. The specified color is specified as RGB
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// values ranging from (0,1). (Note: CGM will map this color to the
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// closest color it supports.)
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vtkSetVector3Macro(SpecifiedColor,float);
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vtkGetVectorMacro(SpecifiedColor,float,3);
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protected:
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vtkCGMWriter();
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~vtkCGMWriter();
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void WriteData();
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vtkViewport *Viewport;
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int ColorMode;
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float SpecifiedColor[3];
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int Resolution;
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int Sort;
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private:
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vtkCGMWriter(const vtkCGMWriter&); // Not implemented.
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void operator=(const vtkCGMWriter&); // Not implemented.
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};
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#endif
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