Home » Archimedes archive » Acorn Computing » 1993 06 Mega Disk.adf » 93_06 » HelixBasic/Examples/!Graph/BasicProg

HelixBasic/Examples/!Graph/BasicProg

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn Computing » 1993 06 Mega Disk.adf » 93_06
Filename: HelixBasic/Examples/!Graph/BasicProg
Read OK:
File size: 0A68 bytes
Load address: 0000
Exec address: 0000
File contents
PROGRAMINFO "!Graph","Multi-tasking graphis package","Authors Name","0.10 (date)"
MAINICON {OPENWINDOW main_window|OPENMENU icon_bar,MOUSEPOSX-64,228|}

PROChelixbasic_windows
PROChelixbasic_menus
REM +--- The Main Procedure ---+

PROCsetup_default_values
PROClimits_definition
SETSAVE filename$,"file_aff","Save Drawfile",save_procedure,&AFF

REPEAT
UNTIL FALSE

DEF PROCsetup_default_values
min_x=0
max_x=PI*2
min_y=-1
max_y=1
colour%=&0000FF
eq$="SINx"

 
ENDPROC

DEF PROCbuild_graph
step=(max_x-min_x)/500
scale=(max_y-min_y)/500
FOR x=min_x TO max_x STEP step
 y_pos=(EVAL(eq$)/scale)+250
 POINT main_window,colour%,((x-min_x)/step)*2,y_pos
NEXT
 
ENDPROC

DEF PROCsave_procedure
HOURGLASS ON
SAVEDRAW main_window,filename$
HOURGLASS OFF
 
ENDPROC

DEF PROClimits_definition
TEXT limits_window,black%,8,48,"Minimum y : "
TEXT limits_window,black%,8,100,"Maximum y : "
TEXT limits_window,black%,8,152,"Minimum x : "
TEXT limits_window,black%,8,204,"Maximum x : "

filter$="0123456789."
EDITFIELD limits_window,edit1,200,168,14,14,1,max_x$=STR$(max_x),filter$
EDITFIELD limits_window,edit2,200,116,14,14,1,min_x$=STR$(min_x),filter$
EDITFIELD limits_window,edit3,200,64,14,14,1,max_y$=STR$(max_y),filter$
EDITFIELD limits_window,edit4,200,12,14,14,1,min_y$=STR$(min_y),filter$

EDITLINK limits_window,edit1,edit2,edit3,edit4

RECTANGLE FILL limits_window,&BBEEEE,8,-48,434,48
RECTANGLE limits_window,black%,8,-48,434,48
TEXT limits_window,black%,109,-12,"Update Values"

MOUSEAREA limits_window,8,-48,434,48,{PROCupdate_limits}

CLOSECOMMAND limits_window,{PROCupdate_limits} 
ENDPROC

DEF PROCupdate_limits
max_x=VAL(max_x$)
min_x=VAL(min_x$)
max_y=VAL(max_y$)
min_y=VAL(min_y$) 
ENDPROC


DEF PROChelixbasic_windows
WINDOW main_window
-10000,-10000,10000,10000
0,0,1000,500
&FFFFFF
"Graph Window"
WINDOWBARS ON,ON,ON,ON
ENDWINDOW
WINDOWHELP main_window,""
WINDOWMOUSE main_window,{|OPENMENU window_menu,MOUSEPOSX-64,MOUSEPOSY+32}

WINDOW limits_window
-10000,-10000,10000,10000
0,-56,460,220
&FFFFFF
"Equation Limits"
WINDOWBARS OFF,OFF,ON,ON
ENDWINDOW
WINDOWHELP limits_window,""
WINDOWMOUSE limits_window,{}

ENDPROC

DEF PROChelixbasic_menus
MENU icon_bar,"!Graph",-1
ADDMENU icon_bar,"Info",INFO
ADDMENU icon_bar,"Show Graph",COMMAND {OPENWINDOW main_window}
ADDMENU icon_bar,"Quit",COMMAND {END}
MENU window_menu,"!Graph",-1
ADDMENU window_menu,"Recalculate",COMMAND {PROCbuild_graph}
ADDMENU window_menu,"Equation",MENU edit_equation
ADDMENU window_menu,"Line Colour",COLOURS col%
ADDMENU window_menu,"Save",SAVE
ADDMENU window_menu,"Set Limits",WINDOW limits_window
MENU edit_equation,"Equation",320
ADDMENU edit_equation,"Untitled",EDIT eq$
ENDPROC

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00000010  61 70 68 22 2c 22 4d 75  6c 74 69 2d 74 61 73 6b  |aph","Multi-task|
00000020  69 6e 67 20 67 72 61 70  68 69 73 20 70 61 63 6b  |ing graphis pack|
00000030  61 67 65 22 2c 22 41 75  74 68 6f 72 73 20 4e 61  |age","Authors Na|
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00000090  34 2c 32 32 38 7c 7d 0a  0a 50 52 4f 43 68 65 6c  |4,228|}..PROChel|
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000000b0  50 52 4f 43 68 65 6c 69  78 62 61 73 69 63 5f 6d  |PROChelixbasic_m|
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00000a50  74 6c 65 64 22 2c 45 44  49 54 20 65 71 24 0a 45  |tled",EDIT eq$.E|
00000a60  4e 44 50 52 4f 43 0a 0a                           |NDPROC..|
00000a68