Post by David Drake on Mar 16, 2020 8:39:59 GMT -5
I have a fascination for nixie tubes, and especially clocks made from nixie tubes. I've never owned one, but would love to. They can be expensive. Since I can't buy one right now, I decided to make one. If you aren't familiar with nixie tubes and clocks, here's a picture of one:
The code below is my simulation. To exit the program, just left- or right-click on the clock. I'm sure I could have done a better job drawing the numerals.
Enjoy!
David
The code below is my simulation. To exit the program, just left- or right-click on the clock. I'm sure I could have done a better job drawing the numerals.
Enjoy!
David
'Nixie Clock simulation
[setupWindow]
nomainwin
WindowWidth=350
WindowHeight=80
UpperLeftX=DisplayWidth-351
UpperLeftY=DisplayHeight-160
graphicbox #1.g, -1, -1, 355, 135
open "Nixie Clock" for window_popup as #1
#1.g "trapclose [q];setfocus;when leftButtonDown [q];when rightButtonDown [q]"
#1.g "backcolor black;fill black;flush"
[makeNumerals]
global m1,m2,d1,d2,y1,y2
global sN1,sN2,mN1,mN2,hN1,hN2
global y,gap,h1x,h2x,m1x,m2x,s1x,s2x
global sec$,min$,hrs$
'brightness levels for each numeral
b$(0)="210 165 65"
b$(1)="215 175 70"
b$(2)="220 185 75"
b$(3)="225 195 80"
b$(4)="230 205 85"
b$(5)="235 215 90"
b$(6)="240 225 95"
b$(7)="245 235 100"
b$(8)="250 245 105"
b$(9)="255 255 110"
b$(10)="65 65 0"'this is the dim (off) brightness value
'Numeral drawing using turtle graphics
w$="up;north;"
n$(0)=w$+"turn 90;go 10;down;north;turn -45;go 14;north;go 40;turn 45;go 14;turn 45;go 10;turn 45;go 14;turn 45;go 40;turn 45;go 14;turn 45;go 10"
n$(1)=w$+"turn 90;go 15;down;north;go 60;"
n$(2)=w$+"turn 90;go 34;up;turn 180;down;go 34;down;north;go 12;turn 48;go 40;north;go 12;turn -45;go 12;turn -45;go 12;turn -45;go 12"
n$(3)=w$+"go 10;turn 135;down;go 12;turn -45;go 12;turn -45;go 13;north;go 15;turn -45;go 15;north;turn 22;go 26;north;turn -90;go 30;"
n$(4)=w$+"turn 90;go 20;down;north;go 60;turn 210;go 40;north;turn 90;go 30"
n$(5)=w$+"go 10;turn 135;down;go 12;turn -45;go 12;turn -45;go 13;north;go 18;turn -45;go 13;turn -45;go 12;turn -45;go 13;north;turn 7;go 32;turn 83;go 25"
n$(6)=w$+"go 22;down;turn 180;go 12;north;turn 135;go 12;turn -45;go 12;turn -45;go 13;north;go 12;turn -45;go 13;turn -45;go 12;turn -45;go 13;north;turn 25;go 42;"
n$(7)=w$+"turn 90;go 10;north;turn 17;down;go 62;north;turn -90;go 27"
n$(8)=w$+"go 22;down;turn 180;go 12;north;turn 135;go 12;turn -45;go 12;turn -45;go 13;north;go 12;turn -45;go 13;turn -45;go 12;turn -45;go 13;up;north;go 30;down;turn 180;go 12;north;turn 135;go 12;turn -45;go 12;turn -45;go 13;north;go 12;turn -45;go 13;turn -45;go 12;turn -45;go 13;"
n$(9)=w$+"go 51;down;turn 180;go 12;north;turn 135;go 12;turn -45;go 12;turn -45;go 13;north;go 12;turn -45;go 13;turn -45;go 12;turn -45;go 13;up;north;turn 113;go 32;down;north;turn 205;go 42;"
[startTick]
q=gDT(1)'get current time and date values
y=70 'vertical position in box
gap=45 'space between numerals
h1x=20 'horizontal starting position in box
h2x=h1x+gap 'hour numeral 2 position
m1x=h2x+gap+20 'minute numeral 1 position
m2x=m1x+gap 'minute numeral 2 position
s1x=m2x+gap+20 'seconds numeral 1 position
s2x=s1x+gap 'seconds numeral 2 position
'clear screen and sets initial view of numerals
#1.g "cls"
for a = 0 to 9
q=pN(a,hN1,h1x)
q=pN(a,hN2,h2x)
q=pN(a,mN1,m1x)
q=pN(a,mN2,m2x)
q=pN(a,sN1,s1x)
q=pN(a,sN2,s2x)
next a
q=sC(10,5)'put colons between hour,minute,seconds
#1.g "flush"
timer 1000, [tick]
[tick]
q=gDT(1)
#1.g "place ";s1x-1;" ";y+2;";color black;boxfilled ";s1x+gap*2;" ";y-69'covers seconds with a black box to reduce flicker
for a = 0 to 9
if sec$="00" and min$="00" then 'update only when it changes to reduce flicker
q=pN(a,hN2,h2x)
end if
if sec$="00" then 'update only when it changes to reduce flicker
q=pN(a,mN1,m1x)
q=pN(a,mN2,m2x)
end if
q=pN(a,sN1,s1x)
q=pN(a,sN2,s2x)
next a
if sec$="00" or sec$="01" or sec$="30" or sec$="31" then 'every 30 seconds show the date for 2 seconds
#1.g "cls"
for a = 0 to 9
q=pN(a,m1,h1x)
q=pN(a,m2,h2x)
q=pN(a,d1,m1x)
q=pN(a,d2,m2x)
q=pN(a,y1,s1x)
q=pN(a,y2,s2x)
next a
q=sC(5,10)'put slashes between month,day,year
timer 2000, [startTick]
end if
wait
[q]
#1.g "cls"
close #1
end
function pN(z,hN,nx) 'put numerals on the window
if hN=z then #1.g "color ";b$(z);";size ";z/4+2.5;";" else #1.g "color ";b$(10);";size 1;"
#1.g "place ";nx+z;" ";y;";";n$(z)
end function
function sC(m,n) 'put slashes or colons numbers
s$=";color "+b$(m)+";size 3;north;turn 22;go 56"
c$=";color "+b$(n)+";size 1;circle 3"
#1.g "place ";m1x-23;" ";y-4;s$
#1.g "place ";s1x-23;" ";y-4;s$
#1.g "place ";m1x-16;" ";y-41;c$
#1.g "place ";m1x-16;" ";y-21;c$
#1.g "place ";s1x-16;" ";y-41;c$
#1.g "place ";s1x-16;" ";y-21;c$
end function
function gDT(n)'get date, time and values into variables
sec$=right$(time$(),2)
min$=mid$(time$(),4,2)
hrs$=left$(time$(),2)
sN1=val(left$(sec$,1))
sN2=val(right$(sec$,1))
mN1=val(left$(min$,1))
mN2=val(right$(min$,1))
hN1=val(left$(hrs$,1))
hN2=val(right$(hrs$,1))
m1=val(mid$(date$("mm/dd/yyyy"),1,1))
m2=val(mid$(date$("mm/dd/yyyy"),2,1))
d1=val(mid$(date$("mm/dd/yyyy"),4,1))
d2=val(mid$(date$("mm/dd/yyyy"),5,1))
y1=val(mid$(date$("mm/dd/yyyy"),9,1))
y2=val(mid$(date$("mm/dd/yyyy"),10,1))
end function
