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   1: // LinePlotEx.cpp : 定義主控台應用程式的進入點。

   2: //

   3:  

   4: #include "stdafx.h"

   5: #include <vtkVersion.h>

   6: #include <vtkRenderer.h>

   7: #include <vtkRenderWindowInteractor.h>

   8: #include <vtkRenderWindow.h>

   9: #include <vtkSmartPointer.h>

  10: #include <vtkChartXY.h>

  11: #include <vtkTable.h>

  12: #include <vtkPlot.h>

  13: #include <vtkFloatArray.h>

  14: #include <vtkContextView.h>

  15: #include <vtkContextScene.h>

  16: #include <vtkPen.h>

  17:  

  18: int _tmain(int argc, _TCHAR* argv[])

  19: {

  20:     // Create a table with some points in it

  21:     vtkSmartPointer<vtkTable> table = 

  22:     vtkSmartPointer<vtkTable>::New();

  23:  

  24:     vtkSmartPointer<vtkFloatArray> arrX = 

  25:     vtkSmartPointer<vtkFloatArray>::New();

  26:     arrX->SetName("X Axis");

  27:     table->AddColumn(arrX);

  28:  

  29:     vtkSmartPointer<vtkFloatArray> arrC = 

  30:     vtkSmartPointer<vtkFloatArray>::New();

  31:     arrC->SetName("Square");

  32:     table->AddColumn(arrC);

  33:  

  34:     vtkSmartPointer<vtkFloatArray> arrS = 

  35:     vtkSmartPointer<vtkFloatArray>::New();

  36:     arrS->SetName("Sine");

  37:     table->AddColumn(arrS);

  38:  

  39:     vtkSmartPointer<vtkFloatArray> arrY = 

  40:         vtkSmartPointer<vtkFloatArray>::New();

  41:     arrY->SetName("Random");

  42:     table->AddColumn(arrY);

  43:  

  44:     // Fill in the table with some example values

  45:     int numPoints = 200;

  46:     float inc = 20.0 / (numPoints-1);

  47:     table->SetNumberOfRows(numPoints);

  48:     for (int i = 0; i < numPoints; ++i)

  49:     {

  50:        table->SetValue(i, 0, i * inc);

  51:        table->SetValue(i, 1, sin(i * inc)>0);

  52:        table->SetValue(i, 2, sin(i * inc));

  53:        table->SetValue(i, 3, sin(i * inc)+rand()%10/100.0);

  54:     }

  55:  

  56:     // Set up the view

  57:     vtkSmartPointer<vtkContextView> view = 

  58:     vtkSmartPointer<vtkContextView>::New();

  59:     view->GetRenderer()->SetBackground(1.0, 1.0, 1.0);

  60:  

  61:     // Add multiple line plots, setting the colors etc

  62:     vtkSmartPointer<vtkChartXY> chart = 

  63:     vtkSmartPointer<vtkChartXY>::New();

  64:     view->GetScene()->AddItem(chart);

  65:     vtkPlot *line = chart->AddPlot(vtkChart::LINE);

  66:     #if VTK_MAJOR_VERSION <= 5

  67:         line->SetInput(table, 0, 1);

  68:     #else

  69:         line->SetInputData(table, 0, 1);

  70:     #endif

  71:     line->SetColor(0, 255, 0, 255);

  72:     line->SetWidth(1.0);

  73:     

  74:  

  75:     //----------------------------------------------------

  76:     line = chart->AddPlot(vtkChart::LINE);

  77:     #if VTK_MAJOR_VERSION <= 5

  78:         line->SetInput(table, 0, 2);

  79:     #else

  80:         line->SetInputData(table, 0, 2);

  81:     #endif

  82:     line->SetColor(255, 0, 0, 255);

  83:     line->SetWidth(5.0);

  84:     //----------------------------------------------------

  85:     vtkPlot *points = chart->AddPlot(vtkChart::POINTS);

  86:     #if VTK_MAJOR_VERSION <= 5

  87:         points->SetInput(table, 0, 3);

  88:     #else

  89:         points->SetInputData(table, 0, 3);

  90:     #endif

  91:         points->SetColor(0, 0, 255);

  92:         points->SetWidth(10.0);

  93:     line = chart->AddPlot(vtkChart::LINE);

  94:     #if VTK_MAJOR_VERSION <= 5

  95:         line->SetInput(table, 0, 3);

  96:     #else

  97:         line->SetInputData(table, 0, 3);

  98:     #endif

  99:     line->SetColor(255, 120, 0, 255);

 100:     line->SetWidth(2.0);

 101:  

 102:  

 103:  

 104:     

 105:     // For dotted line, the line type can be from 2 to 5 for different dash/dot

 106:     // patterns (see enum in vtkPen containing DASH_LINE, value 2):

 107:     #ifndef WIN32

 108:         line->GetPen()->SetLineType(vtkPen::DASH_LINE);

 109:     #endif

 110:         // (ifdef-ed out on Windows because DASH_LINE does not work on Windows

 111:         //  machines with built-in Intel HD graphics card...)

 112:  

 113:     //view->GetRenderWindow()->SetMultiSamples(0);

 114:  

 115:     // Start interactor

 116:     view->GetInteractor()->Initialize();

 117:     view->GetInteractor()->Start();

 118:     return 0;

 119: }

 120: