This page is under development. Comments are welcome, but please load any comments in the comments section at the middle of the page. Thanks,gold
Here is some starter code for Example Linear Interpolation Calculator.
The Iching is the ----
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With the buttons in the little canvas demo, one can call up
separate routines to lay out the different
boards and install the various options .
In a teamwork situation, programming teams could divide up
the several tasks with the framework. In many cases, it
is advantageous to have or write little demo programs for
the separate subroutines. Some of the demo code decks are
included below.
In the button call up of the canvas demo, separate tasks
can laid in successive
statements to clear board, set states, layout the board, and
populate the chesspieces. Loading four statements in the button
might be ClrCanvas .cv; set state3 3;board .cv;
This gets a little lengthy for a button line, so these statements could
be stacked in a separate subroutine. With some global statements for
any constants and passing the canvas name as $w, the subroutine
could be written like
proc stackedlist (w) (
global state3
ClrCanvas $w;
set state3 3;
board $w;
]
Please place any comments here, Thanks.
gold Changes.
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**References***
**appendix TCL programs**
***FIRST VERSION***
proc positionWindow w {
wm geometry $w +300+300
}
set font {Helvetica 18}
frame .frame -relief flat -bg aquamarine4
pack .frame -side top -fill y -anchor center
set names {{} x1: y1: {x3:} {y3:} {x2:} {answer:} possible:}
foreach i {1 2 3 4 5 6 } {
label .frame.label$i -text [lindex $names $i] -anchor e
entry .frame.entry$i -width 35 -textvariable side$i
grid .frame.label$i .frame.entry$i -sticky ew -pady 2 -padx 1
}
proc about {} {
set msg "Calculator for linear interpolation.
from TCL WIKI,
written on eTCL "
tk_messageBox -title "About" -message $msg
}
proc pi {} {expr acos(-1)}
proc interlinear { xx1 yy1 xx3 yy3 xx2 } {
return [expr { ((($xx2-$xx1)*($yy3-$yy1))/($xx3-$xx1))+ $yy1 } ] ;}
proc pol { xx1 yy1 xx3 yy3 xx2 } {
return [expr { ((($xx2-$xx1)*($yy3-$yy1))/($xx3-$xx1))+ $yy1 } ] ;}
proc calculate { } {
global colorwarning
global colorback
global answer2 answer3
global side1 side2 side3 side4 side5 side6
set answer2 ""
set answer2 [ interlinear $side1 $side2 $side3 $side4 $side5 ]
set side6 $answer2
set pi5 [pi]
if {$answer2 >= $pi5} { set error5 [expr {100.*$answer2/$pi5-100.}] }
if {$answer2 <= $pi5} { set error5 [expr {100.*$pi5/$answer2-100.}] }
#$x insert 1.0 " % error $error5 "
#$t insert 1.0 " % error $error5 "
}
proc fillup {aa bb cc dd ee ff } {
.frame.entry1 insert 0 "$aa"
.frame.entry2 insert 0 "$bb"
.frame.entry3 insert 0 "$cc"
.frame.entry4 insert 0 "$dd"
.frame.entry5 insert 0 "$ee"
.frame.entry6 insert 0 "$ff "
}
proc clearx {} {
foreach i {1 2 3 4 5 6 } {
.frame.entry$i delete 0 end
}
}
proc reportx {} {
console show;
puts "
The interpolation function takes
two know points on a line and
solves for an intermediate point.
The points are xx1,yy1 xx2,yy2 and xx3,?yy3?
The input order of the five items
is xx1 yy1 xx2 yy2 xx3
and solving for ?yy3?.
The interpolation function loaded as
proc pol. User should be able to write
pol 50. 1000. 200. 1200. 150.
and save answer (1133.3) on console."
}
frame .buttons -bg aquamarine4
::ttk::button .calculator -text "Solve" -command { calculate }
::ttk::button .test2 -text "Testcase1" -command { clearx;fillup 10. 100. 60. 120. 50. 116 }
::ttk::button .test3 -text "Testcase2" -command { clearx;fillup 50. 1000. 200. 1200. 150. 1133 }
::ttk::button .test4 -text "Testcase3" -command { clearx;fillup 200. 1000. 300. 1500. 250. 1250}
::ttk::button .clearallx -text clear -command {clearx }
::ttk::button .about -text about -command about
::ttk::button .cons -text report -command { reportx }
::ttk::button .exit -text exit -command {exit}
pack .calculator -in .buttons -side top -padx 10 -pady 5
pack .clearallx .cons .about .exit .test4 .test3 .test2 -side bottom -in .buttons
grid .frame .buttons -sticky ns -pady {0 10}
. configure -background aquamarine4 -highlightcolor brown -relief raised -border 30
bind . <Motion> {wm title . "Linear Interpolation Calculator"}
#start of deck#!/bin/sh
#end of deck
#end of deck
#end of deck
#end of deck
#end of deck
#end of deck
****Version with added hacks ****
proc positionWindow w {
wm geometry $w +300+300
}
set font {Helvetica 18}
set colorgrd seashell4
set colorback bisque
set colorwarning tomato1
frame .frame -relief flat -bg aquamarine4
pack .frame -side top -fill y -anchor center
set names {{} x1: y1: {x3:} {y3:} {x2:} {answer:} possible:}
foreach i {1 2 3 4 5 6 } {
label .frame.label$i -text [lindex $names $i] -anchor e
entry .frame.entry$i -width 35 -textvariable side$i
grid .frame.label$i .frame.entry$i -sticky ew -pady 2 -padx 1
}
proc about {} {
set msg "Calculator for linear interpolation.
from TCL WIKI"
tk_messageBox -title "About" -message $msg
}
proc pi {} {expr acos(-1)}
proc interlinear { xx1 yy1 xx3 yy3 xx2 } {
return [expr { ((($xx2-$xx1)*($yy3-$yy1))/($xx3-$xx1))+ $yy1 } ] ;}
proc calculate { } {
global colorwarning
global colorback
global answer2 answer3
global side1 side2 side3 side4 side5 side6
set answer2 ""
set answer2 [ interlinear $side1 $side2 $side3 $side4 $side5 ]
set side6 $answer2
set pi5 [pi]
if {$answer2 >= $pi5} { set error5 [expr {100.*$answer2/$pi5-100.}] }
if {$answer2 <= $pi5} { set error5 [expr {100.*$pi5/$answer2-100.}] }
#$x insert 1.0 " % error $error5 "
#$t insert 1.0 " % error $error5 "
}
proc fillup {aa bb cc dd ee ff } {
.frame.entry1 insert 0 "$aa"
.frame.entry2 insert 0 "$bb"
.frame.entry3 insert 0 "$cc"
.frame.entry4 insert 0 "$dd"
.frame.entry5 insert 0 "$ee"
.frame.entry6 insert 0 "$ff "
}
proc clearx {} {
foreach i {1 2 3 4 5 6 } {
.frame.entry$i delete 0 end
}
}
frame .buttons -bg aquamarine4
::ttk::button .calculator -text "Solve" -command { calculate }
::ttk::button .test2 -text "Testcase1" -command { clearx;fillup 10. 100. 60. 120. 50. 116 }
::ttk::button .test3 -text "Testcase2" -command { clearx;fillup 50. 1000. 200. 1200. 150. 1133 }
::ttk::button .test4 -text "Testcase3" -command { clearx;fillup 200. 1000. 300. 1500. 250. 1250}
::ttk::button .clearallx -text clear -command {clearx }
::ttk::button .about -text about -command about
::ttk::button .exit -text exit -command {exit}
pack .calculator -in .buttons -side top -padx 10 -pady 5
pack .clearallx .about .exit .test4 .test3 .test2 -side bottom -in .buttons
grid .frame .buttons -sticky ns -pady {0 10}
. configure -background aquamarine4 -highlightcolor brown -relief raised -border 30
bind . <Motion> {wm title . "Linear Interpolation Calculator"}
#start of deck
#start of deck
#start of deck
#end of deck
#end of deck
#end of deck
#end of deck
#end of deck
#end of deck
#end of deck