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package require vtk
package require vtkinteraction
set current_font_size 16
set default_text "ABCDEFGHIJKLMnopqrstuvwxyz"
set text_color [list [expr 246 / 255.0] [expr 255 / 255.0] [expr 11 / 255.0]]
set bg_color [list [expr 56 / 255.0] [expr 56 / 255.0] [expr 154 / 255.0]]
vtkRenderWindow renWin
renWin SetSize 386 120
vtkRenderer ren1
eval ren1 SetBackground $bg_color
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
iren AddObserver UserEvent {wm deiconify .vtkInteract}
set i 0
# another actor to test occlusion
vtkPlaneSource plane
plane SetOrigin 120 10 0
plane SetPoint1 220 10 0
plane SetPoint2 120 110 0
vtkPolyDataMapper2D mapper
mapper SetInputConnection [plane GetOutputPort]
vtkActor2D actor
actor SetMapper mapper
[actor GetProperty] SetColor 0.5 0.5 0.5
ren1 AddActor actor
foreach family {
Arial
} {
foreach {bold italic shadow} {
0 0 0
0 0 1
1 0 0
0 1 0
1 1 0
} {
incr i
set attribs {}
if {$bold} {
lappend attribs "b"
}
if {$italic} {
lappend attribs "i"
}
if {$shadow} {
lappend attribs "s"
}
set face_name "$family"
if {[llength $attribs]} {
set face_name "$face_name ([join $attribs ,])"
}
set mapper [vtkTextMapper mapper_${family}_${bold}_${italic}_${shadow}]
$mapper SetInput "$face_name: $default_text"
set tprop [$mapper GetTextProperty]
eval $tprop SetFontFamilyTo$family
eval $tprop SetColor $text_color
$tprop SetBold $bold
$tprop SetItalic $italic
$tprop SetShadow $shadow
$tprop SetFontSize $current_font_size
set actor [vtkActor2D actor_${family}_${bold}_${italic}_${shadow}]
$actor SetMapper $mapper
$actor SetDisplayPosition 10 [expr $i * ($current_font_size + 5)]
ren1 AddActor $actor
}
}
renWin Render
# prevent the tk window from showing up then start the event loop
wm withdraw .
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