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https://github.com/NGSolve/netgen.git
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279 lines
9.7 KiB
Tcl
279 lines
9.7 KiB
Tcl
#!/bin/sh
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# the next line restarts using tclsh \
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exec tclsh "$0" "$@"
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# $Id: texture.tcl,v 1.8 2007/08/03 16:48:50 gregcouch Exp $
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# Togl - a Tk OpenGL widget
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# Copyright (C) 1996 Brian Paul and Ben Bederson
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# Copyright (C) 2006-2007 Greg Couch
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# See the LICENSE file for copyright details.
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# Togl texture map demo
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package provide texture 1.0
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# add parent directory to path to find Togl's pkgIndex in current directory
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if { [file exists pkgIndex.tcl] } {
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set auto_path [linsert $auto_path 0 ..]
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}
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# following load also loads Tk and Togl packages
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load [file dirname [info script]]/texture[info sharedlibextension]
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# create ::texture namespace
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namespace eval ::texture {
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}
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# Called magnification filter changes
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proc ::texture::new_magfilter {} {
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global magfilter
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mag_filter .f1.view $magfilter
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}
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# Called minification filter changes
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proc ::texture::new_minfilter {} {
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global minfilter
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min_filter .f1.view $minfilter
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}
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# Called when texture image radio button changes
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proc ::texture::new_image {} {
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global image
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teximage .f1.view $image
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}
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# Called when texture S wrap button changes
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proc ::texture::new_swrap {} {
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global swrap
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swrap .f1.view $swrap
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}
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# Called when texture T wrap button changes
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proc ::texture::new_twrap {} {
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global twrap
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twrap .f1.view $twrap
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}
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# Called when texture environment radio button selected
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proc ::texture::new_env {} {
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global envmode
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envmode .f1.view $envmode
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}
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# Called when polygon color sliders change
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proc ::texture::new_color { foo } {
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global poly_red poly_green poly_blue
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polycolor .f1.view $poly_red $poly_green $poly_blue
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}
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proc ::texture::new_coord_scale { name element op } {
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global coord_scale
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coord_scale .f1.view $coord_scale
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}
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proc ::texture::take_photo {} {
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image create photo teximg
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.f1.view takephoto teximg
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teximg write image.ppm -format ppm
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}
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# Make the widgets
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proc ::texture::setup {} {
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global magfilter
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global minfilter
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global image
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global swrap
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global twrap
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global envmode
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global poly_red
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global poly_green
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global poly_blue
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global coord_scale
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global startx starty # location of mouse when button pressed
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global xangle yangle
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global xangle0 yangle0
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global texscale texscale0
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wm title . "Texture Map Options"
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### Two frames: top half and bottom half
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frame .f1
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frame .f2
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### The OpenGL window
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togl .f1.view -width 250 -height 250 -rgba true -double true -depth true -create create_cb -reshape reshape_cb -display display_cb
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### Filter radio buttons
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frame .f1.filter -relief ridge -borderwidth 3
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frame .f1.filter.mag -relief ridge -borderwidth 2
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label .f1.filter.mag.label -text "Magnification Filter" -anchor w
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radiobutton .f1.filter.mag.nearest -text GL_NEAREST -anchor w -variable magfilter -value GL_NEAREST -command ::texture::new_magfilter
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radiobutton .f1.filter.mag.linear -text GL_LINEAR -anchor w -variable magfilter -value GL_LINEAR -command ::texture::new_magfilter
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frame .f1.filter.min -relief ridge -borderwidth 2
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label .f1.filter.min.label -text "Minification Filter" -anchor w
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radiobutton .f1.filter.min.nearest -text GL_NEAREST -anchor w -variable minfilter -value GL_NEAREST -command ::texture::new_minfilter
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radiobutton .f1.filter.min.linear -text GL_LINEAR -anchor w -variable minfilter -value GL_LINEAR -command ::texture::new_minfilter
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radiobutton .f1.filter.min.nearest_mipmap_nearest -text GL_NEAREST_MIPMAP_NEAREST -anchor w -variable minfilter -value GL_NEAREST_MIPMAP_NEAREST -command ::texture::new_minfilter
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radiobutton .f1.filter.min.linear_mipmap_nearest -text GL_LINEAR_MIPMAP_NEAREST -anchor w -variable minfilter -value GL_LINEAR_MIPMAP_NEAREST -command ::texture::new_minfilter
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radiobutton .f1.filter.min.nearest_mipmap_linear -text GL_NEAREST_MIPMAP_LINEAR -anchor w -variable minfilter -value GL_NEAREST_MIPMAP_LINEAR -command ::texture::new_minfilter
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radiobutton .f1.filter.min.linear_mipmap_linear -text GL_LINEAR_MIPMAP_LINEAR -anchor w -variable minfilter -value GL_LINEAR_MIPMAP_LINEAR -command ::texture::new_minfilter
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pack .f1.filter.mag -fill x
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pack .f1.filter.mag.label -fill x
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pack .f1.filter.mag.nearest -side top -fill x
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pack .f1.filter.mag.linear -side top -fill x
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pack .f1.filter.min -fill both -expand true
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pack .f1.filter.min.label -side top -fill x
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pack .f1.filter.min.nearest -side top -fill x
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pack .f1.filter.min.linear -side top -fill x
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pack .f1.filter.min.nearest_mipmap_nearest -side top -fill x
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pack .f1.filter.min.linear_mipmap_nearest -side top -fill x
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pack .f1.filter.min.nearest_mipmap_linear -side top -fill x
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pack .f1.filter.min.linear_mipmap_linear -side top -fill x
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### Texture coordinate scale and wrapping
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frame .f2.coord -relief ridge -borderwidth 3
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frame .f2.coord.scale -relief ridge -borderwidth 2
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label .f2.coord.scale.label -text "Max Texture Coord" -anchor w
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entry .f2.coord.scale.entry -textvariable coord_scale
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trace variable coord_scale w ::texture::new_coord_scale
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frame .f2.coord.s -relief ridge -borderwidth 2
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label .f2.coord.s.label -text "GL_TEXTURE_WRAP_S" -anchor w
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radiobutton .f2.coord.s.repeat -text "GL_REPEAT" -anchor w -variable swrap -value GL_REPEAT -command ::texture::new_swrap
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radiobutton .f2.coord.s.clamp -text "GL_CLAMP" -anchor w -variable swrap -value GL_CLAMP -command ::texture::new_swrap
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frame .f2.coord.t -relief ridge -borderwidth 2
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label .f2.coord.t.label -text "GL_TEXTURE_WRAP_T" -anchor w
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radiobutton .f2.coord.t.repeat -text "GL_REPEAT" -anchor w -variable twrap -value GL_REPEAT -command ::texture::new_twrap
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radiobutton .f2.coord.t.clamp -text "GL_CLAMP" -anchor w -variable twrap -value GL_CLAMP -command ::texture::new_twrap
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pack .f2.coord.scale -fill both -expand true
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pack .f2.coord.scale.label -side top -fill x
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pack .f2.coord.scale.entry -side top -fill x
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pack .f2.coord.s -fill x
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pack .f2.coord.s.label -side top -fill x
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pack .f2.coord.s.repeat -side top -fill x
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pack .f2.coord.s.clamp -side top -fill x
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pack .f2.coord.t -fill x
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pack .f2.coord.t.label -side top -fill x
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pack .f2.coord.t.repeat -side top -fill x
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pack .f2.coord.t.clamp -side top -fill x
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### Texture image radio buttons (just happens to fit into the coord frame)
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frame .f2.env -relief ridge -borderwidth 3
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frame .f2.env.image -relief ridge -borderwidth 2
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label .f2.env.image.label -text "Texture Image" -anchor w
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radiobutton .f2.env.image.checker -text "Checker" -anchor w -variable image -value CHECKER -command ::texture::new_image
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radiobutton .f2.env.image.tree -text "Tree" -anchor w -variable image -value TREE -command ::texture::new_image
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radiobutton .f2.env.image.face -text "Face" -anchor w -variable image -value FACE -command ::texture::new_image
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pack .f2.env.image -fill x
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pack .f2.env.image.label -side top -fill x
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pack .f2.env.image.checker -side top -fill x
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pack .f2.env.image.tree -side top -fill x
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pack .f2.env.image.face -side top -fill x
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### Texture Environment
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label .f2.env.label -text "GL_TEXTURE_ENV_MODE" -anchor w
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radiobutton .f2.env.modulate -text "GL_MODULATE" -anchor w -variable envmode -value GL_MODULATE -command ::texture::new_env
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radiobutton .f2.env.decal -text "GL_DECAL" -anchor w -variable envmode -value GL_DECAL -command ::texture::new_env
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radiobutton .f2.env.blend -text "GL_BLEND" -anchor w -variable envmode -value GL_BLEND -command ::texture::new_env
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pack .f2.env.label -fill x
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pack .f2.env.modulate -side top -fill x
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pack .f2.env.decal -side top -fill x
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pack .f2.env.blend -side top -fill x
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### Polygon color
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frame .f2.color -relief ridge -borderwidth 3
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label .f2.color.label -text "Polygon color" -anchor w
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scale .f2.color.red -label Red -from 0 -to 255 -orient horizontal -variable poly_red -command ::texture::new_color
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scale .f2.color.green -label Green -from 0 -to 255 -orient horizontal -variable poly_green -command ::texture::new_color
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scale .f2.color.blue -label Blue -from 0 -to 255 -orient horizontal -variable poly_blue -command ::texture::new_color
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pack .f2.color.label -fill x
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pack .f2.color.red -side top -fill x
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pack .f2.color.green -side top -fill x
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pack .f2.color.blue -side top -fill x
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### Main widgets
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pack .f1.view -side left -fill both -expand true
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pack .f1.filter -side left -fill y
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pack .f1 -side top -fill both -expand true
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pack .f2.coord .f2.env -side left -fill both
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pack .f2.color -fill x
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pack .f2 -side top -fill x
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button .photo -text "Take Photo" -command ::texture::take_photo
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pack .photo -expand true -fill both
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button .quit -text Quit -command exit
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pack .quit -expand true -fill both
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bind .f1.view <ButtonPress-1> {
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set startx %x
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set starty %y
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set xangle0 $xangle
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set yangle0 $yangle
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}
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bind .f1.view <B1-Motion> {
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set xangle [expr $xangle0 + (%x - $startx) / 3.0 ]
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set yangle [expr $yangle0 + (%y - $starty) / 3.0 ]
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yrot .f1.view $xangle
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xrot .f1.view $yangle
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}
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bind .f1.view <ButtonPress-2> {
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set startx %x
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set starty %y
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set texscale0 $texscale
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}
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bind .f1.view <B2-Motion> {
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set q [ expr ($starty - %y) / 400.0 ]
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set texscale [expr $texscale0 * exp($q)]
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texscale .f1.view $texscale
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}
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# set default values:
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set minfilter GL_NEAREST_MIPMAP_LINEAR
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set magfilter GL_LINEAR
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set swrap GL_REPEAT
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set twrap GL_REPEAT
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set envmode GL_MODULATE
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set image CHECKER
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set poly_red 255
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set poly_green 255
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set poly_blue 255
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set coord_scale 1.0
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set xangle 0.0
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set yangle 0.0
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set texscale 1.0
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}
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# Execution starts here!
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if { [info script] == $argv0 } {
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::texture::setup
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}
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