Bottle
vtk-examples/Java/Modelling/Bottle
Description¶
vtkRotationalExtrusionFilter object is a modeling filter.
It takes polygonal data as input and generates polygonal data on output. The input dataset is swept around the z-axis to create new polygonal primitives.
These primitives form a "skirt" or swept surface. For example, sweeping a line results in a cylindrical shell, and sweeping a circle creates a torus.
Question
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Code¶
Bottle.java
import vtk.vtkNamedColors;
import vtk.vtkNativeLibrary;
import vtk.vtkRenderWindow;
import vtk.vtkRenderWindowInteractor;
import vtk.vtkRenderer;
import vtk.vtkPoints;
import vtk.vtkCellArray;
import vtk.vtkPolyData;
import vtk.vtkRotationalExtrusionFilter;
import vtk.vtkPolyDataMapper;
import vtk.vtkActor;
import vtk.vtkStripper;
import vtk.vtkTubeFilter;
public class Bottle
{
// -----------------------------------------------------------------
// Load VTK library and print which library was not properly loaded
static
{
if (!vtkNativeLibrary.LoadAllNativeLibraries())
{
for (vtkNativeLibrary lib : vtkNativeLibrary.values())
{
if (!lib.IsLoaded())
{
System.out.println(lib.GetLibraryName() + " not loaded");
}
}
}
vtkNativeLibrary.DisableOutputWindow(null);
}
// -----------------------------------------------------------------
public static void main(String args[])
{
vtkNamedColors colors = new vtkNamedColors();
//Bottle Actor Color
double Bottlecolor[] = new double[4];
colors.GetColor("Mint", Bottlecolor);
//ProfileActor Color
double ProfileActorcolor[] = new double[4];
colors.GetColor("Tomato", ProfileActorcolor);
//Renderer Background Color
double Bgcolor[] = new double[4];
colors.GetColor("Burlywood", Bgcolor);
//Create the renderer, render window and interactor.
vtkRenderer ren = new vtkRenderer();
vtkRenderWindow renWin = new vtkRenderWindow();
renWin.AddRenderer(ren);
vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor();
iren.SetRenderWindow(renWin);
//create bottle profile
vtkPoints points = new vtkPoints();
points.InsertPoint(0, 0.01, 0.0, 0.0);
points.InsertPoint(1, 1.5, 0.0, 0.0);
points.InsertPoint(2, 1.5, 0.0, 3.5);
points.InsertPoint(3, 1.25, 0.0, 3.75);
points.InsertPoint(4, 0.75, 0.0, 4.00);
points.InsertPoint(5, 0.6, 0.0, 4.35);
points.InsertPoint(6, 0.7, 0.0, 4.65);
points.InsertPoint(7, 1.0, 0.0, 4.75);
points.InsertPoint(8, 1.0, 0.0, 5.0);
points.InsertPoint(9, 0.2, 0.0, 5.0);
vtkCellArray lines = new vtkCellArray();
lines.InsertNextCell(10);//number of points
lines.InsertCellPoint(0);
lines.InsertCellPoint(1);
lines.InsertCellPoint(2);
lines.InsertCellPoint(3);
lines.InsertCellPoint(4);
lines.InsertCellPoint(5);
lines.InsertCellPoint(6);
lines.InsertCellPoint(7);
lines.InsertCellPoint(8);
lines.InsertCellPoint(9);
vtkPolyData profile = new vtkPolyData();
profile.SetPoints(points);
profile.SetLines(lines);
//extrude profile to make bottle
vtkRotationalExtrusionFilter extrude = new vtkRotationalExtrusionFilter();
extrude.SetInputData(profile);
extrude.SetResolution(60);
vtkPolyDataMapper map = new vtkPolyDataMapper();
map.SetInputConnection(extrude.GetOutputPort());
vtkActor bottle = new vtkActor();
bottle.SetMapper(map);
bottle.GetProperty().SetColor(Bottlecolor);
//display the profile
vtkStripper stripper = new vtkStripper();
stripper.SetInputData(profile);
vtkTubeFilter tubes = new vtkTubeFilter();
tubes.SetInputConnection(stripper.GetOutputPort());
tubes.SetNumberOfSides(11);
tubes.SetRadius(.05);
vtkPolyDataMapper profileMapper = new vtkPolyDataMapper();
profileMapper.SetInputConnection(tubes.GetOutputPort());
vtkActor profileActor = new vtkActor();
profileActor.SetMapper(profileMapper);
profileActor.GetProperty().SetColor(ProfileActorcolor);
//Add the actors to the renderer, set the background and size
ren.AddActor(bottle);
ren.AddActor(profileActor);
ren.SetBackground(Bgcolor);
renWin.SetSize(640,480);
renWin.Render();
ren.GetActiveCamera().SetPosition(1, 0, 0);
ren.GetActiveCamera().SetFocalPoint(0, 0, 0);
ren.GetActiveCamera().SetViewUp(0, 0, 1);
ren.ResetCamera();
ren.GetActiveCamera().Azimuth(30);
ren.GetActiveCamera().Elevation(30);
iren.Initialize();
iren.Start();
}
}