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#==========================================================================
#
# Copyright Insight Software Consortium
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0.txt
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#==========================================================================*/
package require Tk
package require InsightToolkit
package require itkinteraction
proc createImageViewer2D {frame image args} {
# Create the canvas.
eval canvas $frame.canvas {-scrollregion "1 1 32 32"} \
{-xscrollcommand "$frame.scrollx set"} \
{-yscrollcommand "$frame.scrolly set"} $args
scrollbar $frame.scrollx -orient horizontal \
-command "$frame.canvas xview"
scrollbar $frame.scrolly -orient vertical \
-command "$frame.canvas yview"
pack $frame.scrollx -side bottom -fill x
pack $frame.scrolly -side right -fill y
pack $frame.canvas -expand 1 -fill both
# Create a Tk image on the canvas.
set i [image create photo]
$frame.canvas create image 0 0 -image $i -anchor nw
# Setup the TkImageViewer2D instance.
set viewer [itkTkImageViewer2D_New]
$viewer SetInput $image
$viewer SetInterpreter [GetInterp]
$viewer SetImageName $i
$viewer SetCanvasName $frame.canvas
return $viewer
}
# Initial sigma value.
set sigma 1
# Create a random image source.
set source [itkRandomImageSourceUC2_New]
$source SetMin 0
$source SetMax 255
set a [new_ULArray 2]
ULArray_setitem $a 0 300
ULArray_setitem $a 1 300
$source SetSize $a
# Connect the smoothing filter.
set filter [itkRecursiveGaussianImageFilterUC2UC2_New]
$filter SetInput [$source GetOutput]
$filter SetSigma $sigma
$filter SetNormalizeAcrossScale 1
$filter SetDirection 0
# Setup the GUI.
frame .control
frame .in
frame .out
frame .in.viewer
frame .out.viewer
button .control.exit -text "Exit" -command {exit}
button .control.update -text "Update" -command {
# Set sigma on the smoothing filter and update the display.
$filter SetSigma $sigma
$smoothedV Draw
$randomV Draw
}
label .control.sigma_label -text "Sigma:"
entry .control.sigma -textvariable sigma
button .control.interact -text "Interact" -command {wm deiconify .itkInteract}
pack .control -side left -anchor n
pack .in .out -side left -expand 1 -fill both
pack .in.viewer .out.viewer -expand 1 -fill both
pack .control.exit .control.interact .control.update -side top
pack .control.sigma_label .control.sigma -side left
# Create the image viewers.
set randomV [createImageViewer2D .in.viewer [$source GetOutput] ]
set smoothedV [createImageViewer2D .out.viewer [$filter GetOutput] ]
# Run the input pipeline to display the random image.
update
$randomV Draw
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