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/*=========================================================================
Program: Visualization Toolkit
Module: RGrid.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.
=========================================================================*/
// This example shows how to create a rectilinear grid.
//
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkFloatArray.h"
#include "vtkRectilinearGrid.h"
#include "vtkRectilinearGridGeometryFilter.h"
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkProperty.h"
#include "vtkCamera.h"
int main()
{
int i;
static double x[47]={
-1.22396, -1.17188, -1.11979, -1.06771, -1.01562, -0.963542,
-0.911458, -0.859375, -0.807292, -0.755208, -0.703125, -0.651042,
-0.598958, -0.546875, -0.494792, -0.442708, -0.390625, -0.338542,
-0.286458, -0.234375, -0.182292, -0.130209, -0.078125, -0.026042,
0.0260415, 0.078125, 0.130208, 0.182291, 0.234375, 0.286458,
0.338542, 0.390625, 0.442708, 0.494792, 0.546875, 0.598958,
0.651042, 0.703125, 0.755208, 0.807292, 0.859375, 0.911458,
0.963542, 1.01562, 1.06771, 1.11979, 1.17188};
static double y[33]={-1.25, -1.17188, -1.09375, -1.01562, -0.9375, -0.859375,
-0.78125, -0.703125, -0.625, -0.546875, -0.46875, -0.390625,
-0.3125, -0.234375, -0.15625, -0.078125, 0, 0.078125,
0.15625, 0.234375, 0.3125, 0.390625, 0.46875, 0.546875,
0.625, 0.703125, 0.78125, 0.859375, 0.9375, 1.01562,
1.09375, 1.17188, 1.25};
static double z[44]={0, 0.1, 0.2, 0.3, 0.4, 0.5,
0.6, 0.7, 0.75, 0.8, 0.9, 1,
1.1, 1.2, 1.3, 1.4, 1.5, 1.6,
1.7, 1.75, 1.8, 1.9, 2, 2.1,
2.2, 2.3, 2.4, 2.5, 2.6, 2.7,
2.75, 2.8, 2.9, 3, 3.1, 3.2,
3.3, 3.4, 3.5, 3.6, 3.7, 3.75,
3.8, 3.9};
// Create a rectilinear grid by defining three arrays specifying the
// coordinates in the x-y-z directions.
vtkFloatArray *xCoords = vtkFloatArray::New();
for (i=0; i<47; i++)
{
xCoords->InsertNextValue(x[i]);
}
vtkFloatArray *yCoords = vtkFloatArray::New();
for (i=0; i<33; i++)
{
yCoords->InsertNextValue(y[i]);
}
vtkFloatArray *zCoords = vtkFloatArray::New();
for (i=0; i<44; i++)
{
zCoords->InsertNextValue(z[i]);
}
// The coordinates are assigned to the rectilinear grid. Make sure that
// the number of values in each of the XCoordinates, YCoordinates,
// and ZCoordinates is equal to what is defined in SetDimensions().
//
vtkRectilinearGrid *rgrid = vtkRectilinearGrid::New();
rgrid->SetDimensions(47,33,44);
rgrid->SetXCoordinates(xCoords);
rgrid->SetYCoordinates(yCoords);
rgrid->SetZCoordinates(zCoords);
// Extract a plane from the grid to see what we've got.
vtkRectilinearGridGeometryFilter *plane = vtkRectilinearGridGeometryFilter::New();
plane->SetInputData(rgrid);
plane->SetExtent(0,46, 16,16, 0,43);
vtkPolyDataMapper *rgridMapper = vtkPolyDataMapper::New();
rgridMapper->SetInputConnection(plane->GetOutputPort());
vtkActor *wireActor = vtkActor::New();
wireActor->SetMapper(rgridMapper);
wireActor->GetProperty()->SetRepresentationToWireframe();
wireActor->GetProperty()->SetColor(0,0,0);
// Create the usual rendering stuff.
vtkRenderer *renderer = vtkRenderer::New();
vtkRenderWindow *renWin = vtkRenderWindow::New();
renWin->AddRenderer(renderer);
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);
renderer->AddActor(wireActor);
renderer->SetBackground(1,1,1);
renderer->ResetCamera();
renderer->GetActiveCamera()->Elevation(60.0);
renderer->GetActiveCamera()->Azimuth(30.0);
renderer->GetActiveCamera()->Zoom(1.0);
renWin->SetSize(300,300);
// interact with data
renWin->Render();
iren->Start();
// Clean up
plane->Delete();
renderer->Delete();
renWin->Delete();
iren->Delete();
xCoords->Delete();
yCoords->Delete();
zCoords->Delete();
rgrid->Delete();
rgridMapper->Delete();
wireActor->Delete();
return 0;
}
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