Updated 2016-04-27 22:39:17 by gold

Wind Chimes and eTCL Slot Calculator Demo Example edit

This page is under development. Comments are welcome, but please load any comments in the comments section at the bottom of the page. Please include your wiki MONIKER in your comment with the same courtesy that I will give you. Its very hard to reply intelligibly without some background of the correspondent. Thanks,gold

gold Here is some Here is some eTCL starter code for calculating tube lengths for pentatonic windchimes from scrap materials. The impetus for these calculations was finding some scrap iron and bamboo on the roadside. Most of the testcases involve replicas or models, using assumptions and rules of thumb.

The eTCL calculator is estimating a pentatonic set from a master length that sounds pleasing. In pseudocode, each new length L1 is [/ $length0 [ expr { pow([N1/N2],0.5) } ], where N1&N2 are integers and N1 > N2.

Pseudocode and Equations

  area = [[* length width ]] # square meters

Table 1,


Testcases Section

In planning any software, it is advisable to gather a number of testcases to check the results of the program. The math for the testcases can be checked by pasting statements in the TCL console. Aside from the TCL calculator display, when one presses the report button on the calculator, one will have console show access to the capacity functions (subroutines).

Testcase 1

table printed inTCL WIKI format
testcase number: 1
chime 1, master length: 30.
chime N1 integer: 5.
chime N2 integer: 4.
alternate chime from N1/N2 centimeters: 26.8
chime 2, centimeters: 26.8
chime 3, centimeters: 25.9
chime 4, centimeters: 24.4
chime 5, centimeters: 23.7


Testcase 2

table printed inTCL WIKI format
testcase number: 2
chime 1, master length: 40.
chime N1 integer: 5.
chime N2 integer: 4.
alternate chime from N1/N2 centimeters: 35.7
chime 2, centimeters: 35.7
chime 3, centimeters: 34.6
chime 4, centimeters: 32.6
chime 5, centimeters: 31.6


Testcase 3

table printed inTCL WIKI format
testcase number: 3
chime 1, master length: 100.
chime N1 integer: 5.
chime N2 integer: 4.
alternate chime from N1/N2 centimeters: 89.4
chime 2, centimeters: 89.4
chime 3, centimeters: 86.6
chime 4, centimeters: 81.6
chime 5, centimeters: 79.0


Screenshots Section

figure 1.


References:

  • Cocquerillat, D. 1968. Palmearies et cultures de l’Enna d’Uruk (559–520).

Appendix Code edit

appendix TCL programs and scripts

        # pretty print from autoindent and ased editor
        # wind chime calculator
        # written on Windows XP on eTCL
        # working under TCL version 8.5.6 and eTCL 1.0.1
        # gold on TCL WIKI , 14jun2014
        package require Tk
        namespace path {::tcl::mathop ::tcl::mathfunc}
        frame .frame -relief flat -bg aquamarine4
        pack .frame -side top -fill y -anchor center
        set names {{} {master length centimeters:} }
        lappend names {N1  integer:}
        lappend names {N2  integer: }
        lappend names {length from N1/N2 centimeters: }
        lappend names {answer: length centimeters}
        lappend names {length centimeters:}
        lappend names {length centimeters: }
        lappend names {length centimeters: }
        foreach i {1 2 3 4 5 6 7 8} {
        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 Wind Chimes 
            from TCL WIKI,
            written on eTCL "
            tk_messageBox -title "About" -message $msg } 
        proc calculate {     } {
            global answer2
            global side1 side2 side3 side4 side5
            global side6 side7 side8 testcase_number 
            incr testcase_number
            set $side1 [* $side1 1. ]
            set $side2 [* $side2 1. ]
            set $side3 [* $side3 1. ]
            set $side4 [* $side4 1. ]
            set N1 $side2
            set N2 $side3
            set length0 $side1
            set term1 [/ 1. 2. ]
            set term2 [/ 5. 4. ]
            set term3 [/ 4. 3. ]
            set term4 [/ 3. 2. ]
            set term5 [/ 8. 5. ]
            set term7 [/ $N1 $N2 ]
            set length2 [/ $length0 [ expr { pow($term2,$term1) } ] ]
            set length3 [/ $length0 [ expr { pow($term3,$term1) } ] ]
            set length4 [/ $length0 [ expr { pow($term4,$term1) } ] ]
            set length5 [/ $length0 [ expr { pow($term5,$term1) } ] ]
            set length6 [/ $length0 [ expr { pow($term7,$term1) } ] ]
            set side4 $length6
            set side5 $length2
            set side6 $length3  
            set side7 $length4 
            set side8 $length5 
            }
        proc fillup {aa bb cc dd ee ff gg hh} {
            .frame.entry1 insert 0 "$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 "$ff"
            .frame.entry7 insert 0 "$gg"
            .frame.entry8 insert 0 "$hh"}
        proc clearx {} {
            foreach i {1 2 3 4 5 6 7 8} {
                .frame.entry$i delete 0 end } }
        proc reportx {} {
            global side1 side2 side3 side4 side5
            global side6 side7 side8 testcase_number 
            console show;
            puts "%|table| printed in|TCL WIKI format |% "
            puts "&|testcase number:| $testcase_number| |& "
            puts "&|chime 1,  master length:| $side1| |& "
            puts "&|chime N1 integer: |$side2| |& "
            puts "&|chime N2 integer: |$side3| |& "
            puts "&|alternate chime from N1/N2 centimeters: | $side4| |& "
            puts "&|chime 2, centimeters: |$side5| |& "
            puts "&|chime 3, centimeters: |$side6| |& "
            puts "&|chime 4, centimeters: | $side7| |& "
            puts "&|chime 5, centimeters: | $side8| |& "
            }
         frame .buttons -bg aquamarine4
        ::ttk::button .calculator -text "Solve" -command { calculate   }
        ::ttk::button .test2 -text "Testcase1" -command {clearx;fillup 30. 5. 4.  26.8 26.8  25.8 24.5 23.7 }
        ::ttk::button .test3 -text "Testcase2" -command {clearx;fillup 40. 5.  4.  26.8 35.7  34.6 32.65 31.6 }
        ::ttk::button .test4 -text "Testcase3" -command {clearx;fillup 100. 5. 4.  26.8 89.4  86.6 81.6 79.05 }
        ::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
        wm title . "Wind Chime Calculator "       

Pushbutton Operation

For the push buttons, the recommended procedure is push testcase and fill frame, change first three entries etc, push solve, and then push report. Report allows copy and paste from console.

For testcases in a computer session, the eTCL calculator increments a new testcase number internally, eg. TC(1), TC(2) , TC(3) , TC(N). The testcase number is internal to the calculator and will not be printed until the report button is pushed for the current result numbers (which numbers will be cleared on the next solve button.) The command { calculate; reportx } or { calculate ; reportx; clearx } can be added or changed to report automatically. Another wrinkle would be to print out the current text, delimiters, and numbers in a TCL wiki style table as
  puts " %| testcase $testcase_number | value| units |comment |%"
  puts " &| volume| $volume| cubic meters |based on length $side1 and width $side2   |&"  

gold This page is copyrighted under the TCL/TK license terms, this license.

Comments Section edit

Please place any comments here, Thanks.