path: root/demos/simpleRadar.tcl

# $Id$
# This simple radar has been initially developped by P. Lecoanet <lecoanet@cena.fr>
# It has been adapted by C. Mertz <mertz@cena.fr> for demo purpose.

if {![info exists zincDemo]} {
    error "This script should be run from the zinc-widget demo."
}

set w .simpleRadar
catch {destroy $w}
toplevel $w
wm title $w "Simple radar display"
wm iconname $w SimpleRadar

text $w.text -relief sunken -borderwidth 2 -height 11
pack $w.text -expand yes -fill both

$w.text insert end {This a very simple radar display, where you can see flight tracks,
a so-called ministrip (green) and and extend flight label (tan background).
   The following operations are possible:
     Shift-Button 1 for using a square lasso (result in the terminal).
     Click Button 2 for identifiying the closest item (result in the terminal).
     Button 3 for dragging most items, but not the ministrip (not in the same group).
     Shift-Button 3 for zooming independently on X and Y axis.
     Ctrl-Button 3 for rotationg graphic objects.
     Enter/Leave in flight label fields, speed vector, position and leader,
       and in the ministrip fields.
     Click Button 1 on flight track to display a route.}



#-------------------------------------------------
# Create zinc
#-------------------------------------------------
set top 1
set scale 1.0
set centerX 0.0
set centerY 0.0
set zincWidth 800
set zincHeight 500
set delay 2000
set rate 0.3
array unset tracks
# if true the flights are no more moving
set pause 0

zinc $w.zinc -backcolor gray65 -relief sunken -font 10x20 \
    -width $zincWidth -height $zincHeight
pack $w.zinc -expand 1 -fill both

$w.zinc add group $top -tags {controls radar}
$w.zinc configure -overlapmanager [$w.zinc find withtag radar]


#-------------------------------------------------
# Create control panel
#-------------------------------------------------
frame $w.f
pack $w.f
button $w.f.up -text Up -command "set centerY [expr $centerY-30.0]; updateTransform $w.zinc"
grid $w.f.up -row 0 -column 2 -sticky ew
button $w.f.down -text Down -command "set centerY [expr $centerY+30.0]; updateTransform $w.zinc"
grid $w.f.down -row 2 -column 2 -sticky ew
button $w.f.left -text Left -command "set centerY [expr $centerX+30.0]; updateTransform $w.zinc"
grid $w.f.left -row 1 -column 1
button $w.f.right -text Right -command "set centerY [expr $centerX-30.0]; updateTransform $w.zinc"
grid $w.f.right -row 1 -column 3
button $w.f.expand -text Expand -command "set scale \[expr $scale*1.1\]; updateTransform $w.zinc"
grid $w.f.expand -row 1 -column 4
button $w.f.shrink -text Shrink -command "set scale \[expr $scale*0.9\]; updateTransform $w.zinc"
grid $w.f.shrink -row 1 -column 0
button $w.f.reset -text Reset -command "set scale 1.0; set centerX 0.0; set centerY 0.0; updateTransform $w.zinc"
grid $w.f.reset -row 1 -column 2 -sticky ew
button $w.f.pause -text Pause -command "set pause \[expr ! $pause\]"
grid $w.f.pause -row 0 -column 6

#--------------------------------------------------
# Resize handling code
#--------------------------------------------------
bind $w.zinc <Configure> "resize $w.zinc %w %h"

proc resize {z w h} {
    global zincWidth zincHeight

    set bw [$z cget -borderwidth]
    set zincWidth [expr $w - 2 * $bw]
    set zincHeight [expr $h - 2 * $bw]
    updateTransform $z
}

proc updateTransform {z} {
    global centerX centerY zincWidth zincHeight scale

    $z treset 1
    $z translate 1 [expr -$centerX] [expr -$centerY]
    $z scale 1 $scale $scale
    $z scale 1 1 -1
    $z translate 1 [expr $zincWidth/2] [expr $zincHeight/2]
}

#------------------------------------------------
# Create the tracks
#------------------------------------------------
proc createTracks {z} {
    global oneTrack zincWidth zincHeight scale
    global centerX centerY tracks

    set w [expr $zincWidth / $scale]
    set h [expr $zincHeight / $scale]
    
    set allTracks {}

    set bOn "$z itemconfigure current \[$z currentpart\] -border contour"
    set bOff "$z itemconfigure current \[$z currentpart\] -border noborder"

    for {set i 20} {$i > 0} {incr i -1} {
	set item [$z add track radar 6]
	lappend allTracks $item
	set oneTrack $item

	set tracks($item,x) [expr rand()*$w - $w/2 + $centerX]
	set tracks($item,y) [expr rand()*$h - $h/2 + $centerY]
	set d [expr (rand() > 0.5) ? 1 : -1]
	set tracks($item,vx) [expr (8.0 + rand()*10.0) * $d]
	set d [expr (rand() > 0.5) ? 1 : -1]
	set tracks($item,vy) [expr (8.0 + rand()*10.0) * $d]
	$z itemconfigure $item -position "$tracks($item,x) $tracks($item,y)" -circlehistory 1 \
	    -speedvector "$tracks($item,vx) $tracks($item,vy)" -speedvectorsensitive 1 \
	    -labeldistance 30 -markersize 20 -historycolor gray30 -filledhistory 0 \
	    -labelformat {x80x60+0+0 x63a0^0^0 x33a0^0>1 a0a0>2>1 x33a0>3>1 a0a0^0>2}
	$z itemconfigure $item 0 -filled 0 -backcolor gray60 -sensitive 1
	$z itemconfigure $item 1 -filled 1 -backcolor gray55 -text [format {AFR%03i} $i]
	$z itemconfigure $item 2 -filled 0 -backcolor gray65 -text 360
	$z itemconfigure $item 3 -filled 0 -backcolor gray65 -text /
	$z itemconfigure $item 4 -filled 0 -backcolor gray65 -text 410
	$z itemconfigure $item 5 -filled 0 -backcolor gray65 -text Balise

	for {set j 0} {$j < 6} {incr j} {
	    $z bind $item:$j <Enter> $bOn
            $z bind $item:$j <Leave> $bOff
            $z bind $item <1> "fieldSensitivity $z"
            $z bind $item <Shift-1> {}
        }
	$z bind $item <Enter> [list $z itemconfigure current -historycolor red3 \
				   -symbolcolor red3 -markercolor red3 -leaderwidth 2 \
				   -leadercolor red3 -speedvectorwidth 2 -speedvectorcolor red3]
        $z bind $item <Leave> [list $z itemconfigure current -historycolor black \
				   -symbolcolor black -markercolor black -leaderwidth 1 \
				   -leadercolor black -speedvectorwidth 1 -speedvectorcolor black]
        $z bind $item:position <1> "createRoute $z"
        $z bind $item:position <Shift-1> {}
        set tracks($item,route) 0
    }

    set tracks(all) $allTracks
}

createTracks $w.zinc

#---------------------------------------------------
# Create route way points
#---------------------------------------------------
proc createRoute {z} {
    global tracks

    set track [$z find withtag current]

    if { $tracks($track,route) == 0 } {
	set x [expr $tracks($track,x) + 8.0 * $tracks($track,vx)]
	set y [expr $tracks($track,y) + 8.0 * $tracks($track,vy)]
	set connected $track
	for {set i 4} {$i > 0} {incr i -1} {
	    set wp [$z add waypoint radar 2 -position "$x $y" -labelformat x20x18+0+0 \
			-connecteditem $connected -connectioncolor green -symbolcolor green]
	    $z lower $wp $connected
	    $z bind $wp:0 <Enter> "$z itemconfigure current 0 -border contour"
	    $z bind $wp:position <Enter> "$z itemconfigure current -symbolcolor red"
	    $z bind $wp:leader <Enter> "$z itemconfigure current -leadercolor red"
	    $z bind $wp:connection <Enter> "$z itemconfigure current -connectioncolor red"
	    $z bind $wp:0 <Leave> "$z itemconfigure current 0 -border noborder"
	    $z bind $wp:position <Leave> "$z itemconfigure current -symbolcolor green"
	    $z bind $wp:leader <Leave> "$z itemconfigure current -leadercolor black"
	    $z bind $wp:connection <Leave> "$z itemconfigure current -connectioncolor green"
	    $z itemconfigure $wp 0 -text $i -filled 1 -backcolor gray55
	    $z bind $wp:position <1> "delWaypoint $z"
	    set x [expr $x + (2.0 + rand()*8.0) * $tracks($track,vx)]
	    set y [expr $y + (2.0 + rand()*8.0) * $tracks($track,vy)]
	    set connected $wp
	}
	set tracks($track,route) $wp
    } else {
	set wp $tracks($track,route)
	while { $wp != $track } {
	    set tracks($track,route) [$z itemcget $wp -connecteditem]
	    $z bind $wp:position <1> {}
	    $z bind $wp:position <Enter> {}
	    $z bind $wp:position <Leave> {}
	    $z bind $wp:leader <Enter> {}
            $z bind $wp:leader <Leave> {}
            $z bind $wp:connection <Enter> {}
            $z bind $wp:connection <Leave> {}
	    $z bind $wp:0 <Enter> {}
            $z bind $wp:0 <Leave> {}
            $z remove $wp
	    set wp $tracks($track,route)
	}
	set tracks($track,route) 0
    }
}

#-----------------------------------------------------
# Toggle current field sensitivity
#-----------------------------------------------------
proc fieldSensitivity {z} {
    set curPart [$z currentpart]
    if { [regexp {[0-9]+} $curPart] } {
	set onOff [$z itemcget current $curPart -sensitive]
	$z itemconfigure current $curPart -sensitive [expr !$onOff]
    }
}

#-----------------------------------------------------
# Removal of a route Waypoint
#-----------------------------------------------------
proc findTrack {z wp} {
    set connected $wp
    
    while { [$z type $connected] != "track" } {
	set connected [$z itemcget $connected -connecteditem]
    }
    return $connected
}

proc delWaypoint {z} {
    global tracks

    set wp [$z find withtag current]
    set track [findTrack $z $wp]
    set next [$z itemcget $wp -connecteditem]

    set prev $tracks($track,route)
    if { $prev != $wp } {
	set prevnext [$z itemcget $prev -connecteditem]
	while { $prevnext != $wp } {
	    set prev $prevnext
	    set prevnext [$z itemcget $prev -connecteditem]
	}
    }
    $z itemconfigure $prev -connecteditem $next
    $z bind $wp:position <1> {}
    $z remove $wp
    if { $wp == $tracks($track,route) } {
	if { $next == $track } {
	    set tracks($track,route) 0
	} else {
	    set tracks($track,route) $next
	}
    }
}


#---------------------------------------------
# Create a macro
#---------------------------------------------
set macro [$w.zinc add tabular radar 10 -labelformat {x73x20+0+0 x20x20+0+0 x53x20+20+0}]
$w.zinc itemconfigure $macro 0 -backcolor tan1 -filled 1 -fillpattern AlphaStipple7 \
    -bordercolor red3
$w.zinc itemconfigure $macro 1 -text a
$w.zinc itemconfigure $macro 2 -text macro
$w.zinc itemconfigure $macro -connecteditem $oneTrack
foreach part {0 1 2} {
    $w.zinc bind $macro:$part <Enter> "borders $w.zinc 1"
    $w.zinc bind $macro:$part <Leave> "borders $w.zinc 0"
}

proc borders {z on} {
    if { $on } {
	set contour contour
    } else {
	set contour noborder
    }
    $z itemconfigure current 0 -border $contour
}

#---------------------------------------------
# Create a ministrip
#---------------------------------------------
set ministrip [$w.zinc add tabular 1 10 -position {100 10} \
		   -labelformat {x153x80^0^0 x93x20^0^0 x63a0^0>1 a0a0>2>1 x33a0>3>1 a0a0^0>2}]
$w.zinc itemconfigure $ministrip 0 -filled 1 -backcolor grey70 -border contour -bordercolor green
$w.zinc itemconfigure $ministrip 1 -text ministrip -color darkgreen -backcolor grey40
$w.zinc itemconfigure $ministrip 2 -text field1 -color darkgreen -backcolor grey40
$w.zinc itemconfigure $ministrip 3 -text field2 -color darkgreen -backcolor grey40
$w.zinc itemconfigure $ministrip 4 -text f3 -color darkgreen -backcolor grey40
$w.zinc itemconfigure $ministrip 5 -text field4 -color darkgreen -backcolor grey40

foreach field {1 2 3 4 5} {
    $w.zinc bind $ministrip:$field <Enter> \
	"$w.zinc itemconfigure current $field -border contour -filled 1 -color white"
    $w.zinc bind $ministrip:$field <Leave> \
	"$w.zinc itemconfigure current $field -border noborder -filled 0 -color darkgreen"
}

#-------------------------------------------
# Create some maps
#-------------------------------------------
set dataDir [file join [file dirname [info script]] data]
videomap load [file join $dataDir videomap_paris-w_90_2] 0 paris-w
videomap load [file join $dataDir videomap_orly] 17 orly
videomap load [file join $dataDir hegias_parouest_TE.vid] 0 paris-ouest

$w.zinc add map radar -color gray80 -mapinfo orly
$w.zinc add map radar -color gray60 -filled 1 -priority 0 \
    -fillpattern AlphaStipple6 -mapinfo paris-ouest
$w.zinc add map radar -color gray50 -mapinfo paris-w


#--------------------------------------------
# Animate tracks along their trajectories
#--------------------------------------------
set timer [after $delay "refresh $w.zinc"]
bind $w.zinc <Destroy> {puts {canceling timer}; after cancel $timer}

proc refresh {z} {
    global pause timer delay tracks rate

    set timer [after $delay "refresh $z"]

    if { ! $pause } {
	foreach t $tracks(all) {
	    set tracks($t,x) [expr $tracks($t,x) + $tracks($t,vx) * $rate]
	    set tracks($t,y) [expr $tracks($t,y) + $tracks($t,vy) * $rate]
	    $z itemconfigure $t -position "$tracks($t,x) $tracks($t,y)"
	}
    }
}