Kevin Kenny - Chia-Wei Chow wrote in news:comp.lang.tcl : I cannot turn the hands of a clock(gif file).
Why a gif? Much easier with a canvas:
grid [canvas .c -width 200 -height 200]
set halfpi 1.570796
set piover6 0.5235987
set twopi 6.283185
.c create oval 2 2 198 198 -fill white -outline black
for { set h 1 } { $h <= 12 } { incr h } {
set angle [expr { $halfpi - $piover6 * $h }]
set x [expr { 100 + 90 * cos($angle) }]
set y [expr { 100 - 90 * sin($angle) }]
.c create text $x $y -text $h -font {Helvetica -12}
}
proc hands {} {
catch { .c delete withtag hands }
# Compute seconds since midnight
set s [expr { [clock seconds] - [clock scan 00:00:00] }]
# Angle of second hand
set angle [expr { $s * $::twopi / 60. }]
set y [expr { 100 - 90 * cos($angle) }]
set x [expr { 100 + 90 * sin($angle) }]
.c create line 100 100 $x $y -width 1 -tags hands
# Minute hand
set angle [expr { $s * $::twopi / 60. / 60. }]
set y [expr { 100 - 85 * cos($angle) }]
set x [expr { 100 + 85 * sin($angle) }]
.c create line 100 100 $x $y -width 3 -capstyle projecting -tags hands
# Hour hand
set angle [expr { $s * $::twopi / 60. / 60. / 12. }]
set y [expr { 100 - 60 * cos($angle) }]
set x [expr { 100 + 60 * sin($angle) }]
.c create line 100 100 $x $y -width 7 -capstyle projecting -tags hands
after 1000 hands
}
handsRS Not matching the title, but here's a cute little digital clock I originally wrote for Einfach Tcl:
proc every {ms body} {
eval $body
after $ms [list every $ms $body]
}
pack [label .clock -textvar time]
every 1000 {set ::time [clock format [clock sec] -format %H:%M:%S]}...and both combined in A little A/D clock.
Alexander Mueller Neither matching the title, but nice too. A clock that shows the time in binary, that had it's orgin in RS's little digital clock and some help from [email protected].
set radius 35
wm title . "BClock, initializing..."
wm maxsize . [expr $radius*6+1] [expr $radius*4+1]
wm minsize . [expr $radius*6+1] [expr $radius*4+1]
wm geometry . [expr $radius*6+1]x[expr $radius*4+1]
pack [canvas .b -background black]
foreach col {0 1 2 3 4 5} {
foreach bit {0 1 2 3} {
set x1 [expr $col * $radius]
set y1 [expr $radius*3 - $bit * $radius]
set x2 [expr $x1 + $radius]
set y2 [expr $y1 + $radius]
set layout(x${col}y${bit}) [.b create oval $x1 $y1 $x2 $y2]
}
}
proc delay {ms body} {
eval $body
after $ms [list delay $ms $body]
}
delay 1000 {
global layout
set time [ clock format [ clock sec ] -format "%T" ]
regexp {([0-2])([0-9]):([0-5])([0-9]):([0-5])([0-9])} \
$time -> h1 h2 m1 m2 s1 s2
wm title . "BClock, $time"
set values [list $h1 $h2 $m1 $m2 $s1 $s2]
foreach col {0 1 2 3 4 5} {
set value [lindex $values $col]
foreach bit {0 1 2 3} {
if { $value & (1 << $bit) } {
set colour IndianRed1
} else {
set colour DarkRed
}
.b itemconfigure $layout(x${col}y${bit}) -fill $colour
}
}
}... and if you don't mind, mail ideas/corrections/additions to [email protected], as i don't come around much :)