Home » Archimedes archive » Acorn User » AU 1997-10 A.adf » Extras » Apple][e/PD/BOB/ARMBOB/!ArmBob/progs/h/draw/figure
Apple][e/PD/BOB/ARMBOB/!ArmBob/progs/h/draw/figure
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 User » AU 1997-10 A.adf » Extras |
| Filename: | Apple][e/PD/BOB/ARMBOB/!ArmBob/progs/h/draw/figure |
| Read OK: | ✔ |
| File size: | 03D2 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
/*******************************************************
* *
* draw.figure Library GCW 27/12/94 *
* *
*******************************************************/
/* Uses draw.object, draw.file */
drawfile::circle(x,y,r)
{
local a;
a = floor(4*r*(sqrt(2.0)-1.0)/3);
this->move(x,y+r);
this->bezier(x+a,y+r,x+r,y+a,x+r,y);
this->bezier(x+r,y-a,x+a,y-r,x,y-r);
this->bezier(x-a,y-r,x-r,y-a,x-r,y);
this->bezier(x-r,y+a,x-a,y+r,x,y+r);
this->close_with_line();
}
drawfile::ellipse(x,y,a,b)
{
local a1,b1;
a1 = floor(4*a*(sqrt(2.0)-1.0)/3);
b1 = floor(4*b*(sqrt(2.0)-1.0)/3);
this->move(x,y+b);
this->bezier(x+a1,y+b,x+a,y+b1,x+a,y);
this->bezier(x+a,y-b1,x+a1,y-b,x,y-b);
this->bezier(x-a1,y-b,x-a,y-b1,x-a,y);
this->bezier(x-a,y+b1,x-a1,y+b,x,y+b);
this->close_with_line();
}
/* ------------ end of figure definitions ------------- */
00000000 2f 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |/***************|
00000010 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
*
00000030 2a 2a 2a 2a 2a 2a 2a 2a 0a 20 2a 20 20 20 20 20 |********. * |
00000040 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
00000070 2a 0a 20 2a 20 20 64 72 61 77 2e 66 69 67 75 72 |*. * draw.figur|
00000080 65 20 4c 69 62 72 61 72 79 20 20 20 20 20 20 20 |e Library |
00000090 20 47 43 57 20 20 32 37 2f 31 32 2f 39 34 20 20 | GCW 27/12/94 |
000000a0 20 20 20 20 20 20 20 20 20 2a 0a 20 2a 20 20 20 | *. * |
000000b0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
*
000000e0 20 20 2a 0a 20 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a | *. ***********|
000000f0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
*
00000110 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2f 0a 0a 2f |************/../|
00000120 2a 20 55 73 65 73 20 64 72 61 77 2e 6f 62 6a 65 |* Uses draw.obje|
00000130 63 74 2c 20 64 72 61 77 2e 66 69 6c 65 20 2a 2f |ct, draw.file */|
00000140 0a 0a 64 72 61 77 66 69 6c 65 3a 3a 63 69 72 63 |..drawfile::circ|
00000150 6c 65 28 78 2c 79 2c 72 29 0a 7b 0a 20 6c 6f 63 |le(x,y,r).{. loc|
00000160 61 6c 20 61 3b 0a 20 61 20 3d 20 66 6c 6f 6f 72 |al a;. a = floor|
00000170 28 34 2a 72 2a 28 73 71 72 74 28 32 2e 30 29 2d |(4*r*(sqrt(2.0)-|
00000180 31 2e 30 29 2f 33 29 3b 0a 20 74 68 69 73 2d 3e |1.0)/3);. this->|
00000190 6d 6f 76 65 28 78 2c 79 2b 72 29 3b 0a 20 74 68 |move(x,y+r);. th|
000001a0 69 73 2d 3e 62 65 7a 69 65 72 28 78 2b 61 2c 79 |is->bezier(x+a,y|
000001b0 2b 72 2c 78 2b 72 2c 79 2b 61 2c 78 2b 72 2c 79 |+r,x+r,y+a,x+r,y|
000001c0 29 3b 0a 20 74 68 69 73 2d 3e 62 65 7a 69 65 72 |);. this->bezier|
000001d0 28 78 2b 72 2c 79 2d 61 2c 78 2b 61 2c 79 2d 72 |(x+r,y-a,x+a,y-r|
000001e0 2c 78 2c 79 2d 72 29 3b 0a 20 74 68 69 73 2d 3e |,x,y-r);. this->|
000001f0 62 65 7a 69 65 72 28 78 2d 61 2c 79 2d 72 2c 78 |bezier(x-a,y-r,x|
00000200 2d 72 2c 79 2d 61 2c 78 2d 72 2c 79 29 3b 0a 20 |-r,y-a,x-r,y);. |
00000210 74 68 69 73 2d 3e 62 65 7a 69 65 72 28 78 2d 72 |this->bezier(x-r|
00000220 2c 79 2b 61 2c 78 2d 61 2c 79 2b 72 2c 78 2c 79 |,y+a,x-a,y+r,x,y|
00000230 2b 72 29 3b 0a 20 74 68 69 73 2d 3e 63 6c 6f 73 |+r);. this->clos|
00000240 65 5f 77 69 74 68 5f 6c 69 6e 65 28 29 3b 0a 7d |e_with_line();.}|
00000250 0a 0a 64 72 61 77 66 69 6c 65 3a 3a 65 6c 6c 69 |..drawfile::elli|
00000260 70 73 65 28 78 2c 79 2c 61 2c 62 29 0a 7b 0a 20 |pse(x,y,a,b).{. |
00000270 6c 6f 63 61 6c 20 61 31 2c 62 31 3b 0a 20 61 31 |local a1,b1;. a1|
00000280 20 3d 20 66 6c 6f 6f 72 28 34 2a 61 2a 28 73 71 | = floor(4*a*(sq|
00000290 72 74 28 32 2e 30 29 2d 31 2e 30 29 2f 33 29 3b |rt(2.0)-1.0)/3);|
000002a0 0a 20 62 31 20 3d 20 66 6c 6f 6f 72 28 34 2a 62 |. b1 = floor(4*b|
000002b0 2a 28 73 71 72 74 28 32 2e 30 29 2d 31 2e 30 29 |*(sqrt(2.0)-1.0)|
000002c0 2f 33 29 3b 0a 20 74 68 69 73 2d 3e 6d 6f 76 65 |/3);. this->move|
000002d0 28 78 2c 79 2b 62 29 3b 0a 20 74 68 69 73 2d 3e |(x,y+b);. this->|
000002e0 62 65 7a 69 65 72 28 78 2b 61 31 2c 79 2b 62 2c |bezier(x+a1,y+b,|
000002f0 78 2b 61 2c 79 2b 62 31 2c 78 2b 61 2c 79 29 3b |x+a,y+b1,x+a,y);|
00000300 0a 20 74 68 69 73 2d 3e 62 65 7a 69 65 72 28 78 |. this->bezier(x|
00000310 2b 61 2c 79 2d 62 31 2c 78 2b 61 31 2c 79 2d 62 |+a,y-b1,x+a1,y-b|
00000320 2c 78 2c 79 2d 62 29 3b 0a 20 74 68 69 73 2d 3e |,x,y-b);. this->|
00000330 62 65 7a 69 65 72 28 78 2d 61 31 2c 79 2d 62 2c |bezier(x-a1,y-b,|
00000340 78 2d 61 2c 79 2d 62 31 2c 78 2d 61 2c 79 29 3b |x-a,y-b1,x-a,y);|
00000350 0a 20 74 68 69 73 2d 3e 62 65 7a 69 65 72 28 78 |. this->bezier(x|
00000360 2d 61 2c 79 2b 62 31 2c 78 2d 61 31 2c 79 2b 62 |-a,y+b1,x-a1,y+b|
00000370 2c 78 2c 79 2b 62 29 3b 0a 20 74 68 69 73 2d 3e |,x,y+b);. this->|
00000380 63 6c 6f 73 65 5f 77 69 74 68 5f 6c 69 6e 65 28 |close_with_line(|
00000390 29 3b 0a 7d 0a 0a 0a 2f 2a 20 2d 2d 2d 2d 2d 2d |);.}.../* ------|
000003a0 2d 2d 2d 2d 2d 2d 20 65 6e 64 20 6f 66 20 66 69 |------ end of fi|
000003b0 67 75 72 65 20 64 65 66 69 6e 69 74 69 6f 6e 73 |gure definitions|
000003c0 20 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 20 2a | ------------- *|
000003d0 2f 0a |/.|
000003d2 
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