# Create a fancy image of a 2D Delaunay triangulation. Points are randomly 
# generated.

# get the interactor ui
source vtkInt.tcl

# get some nice colors
source colors.tcl

# create some points
#
vtkMath math;
vtkFloatPoints points;
for {set i 0} {$i<50} {incr i 1} {
    eval points InsertPoint $i [math Random 0 1] [math Random 0 1] 0.0;
}

vtkPolyData profile;
    profile SetPoints points;

# triangulate them
#
vtkDelaunay2D del
    del SetInput profile;
    del SetTolerance 0.001;
vtkPolyMapper mapMesh;
    mapMesh SetInput [del GetOutput];
vtkActor meshActor
    meshActor SetMapper mapMesh;
    eval [meshActor GetProperty] SetColor .1 .2 .4

vtkExtractEdges extract;
    extract SetInput [del GetOutput];
vtkTubeFilter tubes;
    tubes SetInput [extract GetOutput];
    tubes SetRadius 0.01;
    tubes SetNumberOfSides 6;
vtkPolyMapper mapEdges;
    mapEdges SetInput [tubes GetOutput];
vtkActor edgeActor
    edgeActor SetMapper mapEdges;
eval [edgeActor GetProperty] SetColor $peacock;
    [edgeActor GetProperty] SetSpecularColor 1 1 1;
    [edgeActor GetProperty] SetSpecular 0.3;
    [edgeActor GetProperty] SetSpecularPower 20;
    [edgeActor GetProperty] SetAmbient 0.2;
    [edgeActor GetProperty] SetDiffuse 0.8;

vtkSphereSource ball;
    ball SetRadius 0.025;
    ball SetThetaResolution 12;
    ball SetPhiResolution 12;
vtkGlyph3D balls;
    balls SetInput [del GetOutput];
    balls SetSource [ball GetOutput];
vtkPolyMapper mapBalls;
    mapBalls SetInput [balls GetOutput];
vtkActor ballActor
    ballActor SetMapper mapBalls;
    eval [ballActor GetProperty] SetColor $hot_pink;
    [ballActor GetProperty] SetSpecularColor 1 1 1;
    [ballActor GetProperty] SetSpecular 0.3;
    [ballActor GetProperty] SetSpecularPower 20;
    [ballActor GetProperty] SetAmbient 0.2;
    [ballActor GetProperty] SetDiffuse 0.8;

# Create graphics objects
vtkRenderMaster rm;

# Now create the rendering window, renderer, and interactive renderer
set renWin [rm MakeRenderWindow];
set ren1   [$renWin MakeRenderer];
set iren   [$renWin MakeRenderWindowInteractor];

# Add the actors to the renderer, set the background and size
$ren1 AddActors ballActor;
#$ren1 AddActors meshActor;
$ren1 AddActors edgeActor;
$ren1 SetBackground 1 1 1;
$renWin SetSize 150 150;
#$renWin SetSize 500 500;

# render the image
#
$iren SetUserMethod {wm deiconify .vtkInteract};
[$ren1 GetActiveCamera] Zoom 1.5;
$iren Initialize;

$renWin SetFileName "DelMesh.ppm";
#$renWin SaveImageAsPPM;

# prevent the tk window from showing up then start the event loop
wm withdraw .


