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Draw/Example4

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.

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   10REM > Example4
   20
   30REM The draw module - Example 4
   40REM Show some of the other things you can do with the draw module
   50REM by Ben Summers
   60
   70
   80ONERROR REPORT:PRINT" at line "ERL:END
   90
  100REM find a suitible mode (multisync if possible)
  110SYS "OS_CheckModeValid",20 TO ;f%
  120IF (f% AND 2) = 2 THEN MODE 12 ELSE MODE 20
  130
  140OFF
  150
  160
  170REM first, make a path...
  180
  190RESTORE
  200DIM path% 1024
  210
  220n = 0
  230REPEAT
  240  READ e%
  250  path%!(n*4) = e%
  260  n += 1
  270UNTIL e% = -1
  280
  290DATA 2,-32*512,0, 8,0,32*512
  300DATA 6,16*512,32*512,32*512,16*512,32*512,0
  310DATA 8,0,-32*512, 5
  320DATA 2,-8*512,0, 8,8*512,0, 5
  330DATA 2,0,-8*512, 8,0,8*512, 5
  340DATA 0, -1
  350
  360CLS
  370
  380PRINT TAB(0,0) "Click on the start point of the curve."
  390
  400*pointer 1
  410
  420REM **************** make the curve path
  430
  440DIM curve% 64
  450curve%!0 = 2
  460PROCget_point(curve%!4, curve%!8, &0000FF00)
  470curve%!12 = 6
  480
  490PRINT TAB(0,0) "Click on the first control point" SPC(10)
  500PROCget_point(curve%!16, curve%!20, &00FF0000)
  510
  520PRINT TAB(0,0) "Click on the second control point" SPC(10)
  530PROCget_point(curve%!24, curve%!28, &00FF0000)
  540
  550PRINT TAB(0,0) "Click on the end point" SPC(12)
  560PROCget_point(curve%!32, curve%!36, &0000FF00)
  570
  580curve%!40 = 4
  590curve%!44 = 0
  600
  610
  620
  630REM **************** draw it onto the screen
  640
  650DIM cap_join% 32
  660
  670cap_join%?0 = 0
  680cap_join%?1 = 0
  690cap_join%?2 = 0
  700cap_join%?3 = 0
  710cap_join%!4 = &100000         :REM mitre limit
  720
  730line_thickness% = 4*256
  740
  750SYS "ColourTrans_SetGCOL",&FFFFFF00,,,0,0
  760SYS "Draw_Stroke",curve%,0,0,0,line_thickness%,cap_join%,0
  770
  780
  790
  800REM **************** now, here's the clever bit... get the
  810REM                  draw module to split the path up into
  820REM                  individual lines
  830
  840
  850REM find out how large a buffer we need for the output path
  860
  870flatness% = 8*256
  880SYS "Draw_ProcessPath",curve%,(1<<28),0,flatness%,0,0,0,3 TO size%
  890
  900DIM points% size%
  910
  920REM initialise the points% path to give it's size
  930points%!0 = 0
  940points%!4 = size%
  950
  960REM get a new path
  970SYS "Draw_ProcessPath",curve%,(1<<28),0,flatness%,0,0,0,points% TO size%
  980
  990
 1000
 1010REM **************** go though the output path plotting a
 1020REM                  copy of the path at each point
 1030REM                  and rotate it a little each time
 1040
 1050theta = 0
 1060done = FALSE
 1070i% = 0
 1080inc% = 0
 1090DIM transform% 32
 1100
 1110SYS "ColourTrans_SetGCOL",&00FF0000,,,0,0
 1120
 1130WHILE done = FALSE
 1140
 1150  plot = FALSE
 1160
 1170  REM hanlde element type
 1180  CASE points%!i% OF
 1190    WHEN 0:done = TRUE
 1200    WHEN 1:done = TRUE
 1210    WHEN 2:plot = TRUE:inc% = 12
 1220    WHEN 3:plot = TRUE:inc% = 12
 1230    WHEN 4:inc% = 4
 1240    WHEN 5:inc% = 4
 1250    WHEN 6:plot = TRUE:inc% = 28
 1260    WHEN 7:plot = TRUE:inc% = 12
 1270    WHEN 8:plot = TRUE:inc% = 12
 1280  ENDCASE
 1290
 1300  IF(plot AND done = FALSE) THEN
 1310
 1320    a = COSRADtheta
 1330    b = SINRADtheta
 1340    c = -SINRADtheta
 1350    d = COSRADtheta
 1360
 1370    transform%!0  = a * 2^16
 1380    transform%!4  = b * 2^16
 1390    transform%!8  = c * 2^16
 1400    transform%!12 = d * 2^16
 1410    transform%!16 = points%!(i% + 4)
 1420    transform%!20 = points%!(i% + 8)   : REM translation coords
 1430
 1440    SYS "Draw_Stroke",path%,0,transform%,0,line_thickness%,cap_join%,0
 1450
 1460    theta += 10
 1470  ENDIF
 1480
 1490  i% += inc%
 1500
 1510ENDWHILE
 1520
 1530
 1540
 1550END
 1560
 1570
 1580DEFPROCget_point(RETURN x%, RETURN y%, col%)
 1590  LOCAL mx%, my%, mb%
 1600
 1610  REPEAT:MOUSE mx%,my%,mb%:UNTIL mb% <> 0
 1620  REPEAT:MOUSE mx%,my%,mb%:UNTIL mb% = 0
 1630
 1640  x% = mx%*256
 1650  y% = my%*256
 1660
 1670  SYS "ColourTrans_SetGCOL",col%,,,0,0
 1680  CIRCLEFILL mx%,my%,12
 1690ENDPROC
 1700
 1710

� > Example4

!� The draw module - Example 4
(C� Show some of the other things you can do with the draw module
2� by Ben Summers
<
F
P� �:�" at line "�:�
Z
d2� find a suitible mode (multisync if possible)
n#ș "OS_CheckModeValid",20 � ;f%
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�
��
�
�
�� first, make a path...
�
��
�� path% 1024
�
�	n = 0
��
�
  � e%
�  path%!(n*4) = e%
  n += 1

� e% = -1

"� 2,-32*512,0, 8,0,32*512
,,� 6,16*512,32*512,32*512,16*512,32*512,0
6� 8,0,-32*512, 5
@� 2,-8*512,0, 8,8*512,0, 5
J� 2,0,-8*512, 8,0,8*512, 5
T� 0, -1
^
h�
r
|4� �0,0) "Click on the start point of the curve."
�
�*pointer 1
�
�*� **************** make the curve path
�
�� curve% 64
�curve%!0 = 2
�-�get_point(curve%!4, curve%!8, &0000FF00)
�curve%!12 = 6
�
�4� �0,0) "Click on the first control point" �(10)
�/�get_point(curve%!16, curve%!20, &00FF0000)
�
5� �0,0) "Click on the second control point" �(10)
/�get_point(curve%!24, curve%!28, &00FF0000)

&*� �0,0) "Click on the end point" �(12)
0/�get_point(curve%!32, curve%!36, &0000FF00)
:
Dcurve%!40 = 4
Ncurve%!44 = 0
X
b
l
v.� **************** draw it onto the screen
�
�� cap_join% 32
�
�cap_join%?0 = 0
�cap_join%?1 = 0
�cap_join%?2 = 0
�cap_join%?3 = 0
�0cap_join%!4 = &100000         :� mitre limit
�
�line_thickness% = 4*256
�
�,ș "ColourTrans_SetGCOL",&FFFFFF00,,,0,0
�=ș "Draw_Stroke",curve%,0,0,0,line_thickness%,cap_join%,0



 <� **************** now, here's the clever bit... get the
*<�                  draw module to split the path up into
4'�                  individual lines
>
H
R=� find out how large a buffer we need for the output path
\
fflatness% = 8*256
pDș "Draw_ProcessPath",curve%,(1<<28),0,flatness%,0,0,0,3 � size%
z
�� points% size%
�
�3� initialise the points% path to give it's size
�points%!0 = 0
�points%!4 = size%
�
�� get a new path
�Jș "Draw_ProcessPath",curve%,(1<<28),0,flatness%,0,0,0,points% � size%
�
�
�
�;� **************** go though the output path plotting a
�5�                  copy of the path at each point
7�                  and rotate it a little each time


theta = 0
$done = �
.
i% = 0
8inc% = 0
B� transform% 32
L
V,ș "ColourTrans_SetGCOL",&00FF0000,,,0,0
`
jȕ done = �
t
~  plot = �
�
�  � hanlde element type
�  Ȏ points%!i% �
�    � 0:done = �
�    � 1:done = �
�    � 2:plot = �:inc% = 12
�    � 3:plot = �:inc% = 12
�    � 4:inc% = 4
�    � 5:inc% = 4
�    � 6:plot = �:inc% = 28
�    � 7:plot = �:inc% = 12
�    � 8:plot = �:inc% = 12
  �


  �(plot � done = �) �

(    a = ��theta
2    b = ��theta
<    c = -��theta
F    d = ��theta
P
Z     transform%!0  = a * 2^16
d     transform%!4  = b * 2^16
n     transform%!8  = c * 2^16
x     transform%!12 = d * 2^16
�(    transform%!16 = points%!(i% + 4)
�A    transform%!20 = points%!(i% + 8)   : � translation coords
�
�I    ș "Draw_Stroke",path%,0,transform%,0,line_thickness%,cap_join%,0
�
�    theta += 10
�  �
�
�  i% += inc%
�
��
�
�

�

"
,!��get_point(� x%, � y%, col%)
6  � mx%, my%, mb%
@
J!  �:ȗ mx%,my%,mb%:� mb% <> 0
T   �:ȗ mx%,my%,mb%:� mb% = 0
^
h  x% = mx%*256
r  y% = my%*256
|
�)  ș "ColourTrans_SetGCOL",col%,,,0,0
�  ȏȐ mx%,my%,12
��
�
�
�
00000000  0d 00 0a 10 f4 20 3e 20  45 78 61 6d 70 6c 65 34  |..... > Example4|
00000010  0d 00 14 04 0d 00 1e 21  f4 20 54 68 65 20 64 72  |.......!. The dr|
00000020  61 77 20 6d 6f 64 75 6c  65 20 2d 20 45 78 61 6d  |aw module - Exam|
00000030  70 6c 65 20 34 0d 00 28  43 f4 20 53 68 6f 77 20  |ple 4..(C. Show |
00000040  73 6f 6d 65 20 6f 66 20  74 68 65 20 6f 74 68 65  |some of the othe|
00000050  72 20 74 68 69 6e 67 73  20 79 6f 75 20 63 61 6e  |r things you can|
00000060  20 64 6f 20 77 69 74 68  20 74 68 65 20 64 72 61  | do with the dra|
00000070  77 20 6d 6f 64 75 6c 65  0d 00 32 14 f4 20 62 79  |w module..2.. by|
00000080  20 42 65 6e 20 53 75 6d  6d 65 72 73 0d 00 3c 04  | Ben Summers..<.|
00000090  0d 00 46 04 0d 00 50 18  ee 85 20 f6 3a f1 22 20  |..F...P... .:." |
000000a0  61 74 20 6c 69 6e 65 20  22 9e 3a e0 0d 00 5a 04  |at line ".:...Z.|
000000b0  0d 00 64 32 f4 20 66 69  6e 64 20 61 20 73 75 69  |..d2. find a sui|
000000c0  74 69 62 6c 65 20 6d 6f  64 65 20 28 6d 75 6c 74  |tible mode (mult|
000000d0  69 73 79 6e 63 20 69 66  20 70 6f 73 73 69 62 6c  |isync if possibl|
000000e0  65 29 0d 00 6e 23 c8 99  20 22 4f 53 5f 43 68 65  |e)..n#.. "OS_Che|
000000f0  63 6b 4d 6f 64 65 56 61  6c 69 64 22 2c 32 30 20  |ckModeValid",20 |
00000100  b8 20 3b 66 25 0d 00 78  20 e7 20 28 66 25 20 80  |. ;f%..x . (f% .|
00000110  20 32 29 20 3d 20 32 20  8c 20 eb 20 31 32 20 8b  | 2) = 2 . . 12 .|
00000120  20 eb 20 32 30 0d 00 82  04 0d 00 8c 05 87 0d 00  | . 20...........|
00000130  96 04 0d 00 a0 04 0d 00  aa 1b f4 20 66 69 72 73  |........... firs|
00000140  74 2c 20 6d 61 6b 65 20  61 20 70 61 74 68 2e 2e  |t, make a path..|
00000150  2e 0d 00 b4 04 0d 00 be  05 f7 0d 00 c8 10 de 20  |............... |
00000160  70 61 74 68 25 20 31 30  32 34 0d 00 d2 04 0d 00  |path% 1024......|
00000170  dc 09 6e 20 3d 20 30 0d  00 e6 05 f5 0d 00 f0 0a  |..n = 0.........|
00000180  20 20 f3 20 65 25 0d 00  fa 16 20 20 70 61 74 68  |  . e%....  path|
00000190  25 21 28 6e 2a 34 29 20  3d 20 65 25 0d 01 04 0c  |%!(n*4) = e%....|
000001a0  20 20 6e 20 2b 3d 20 31  0d 01 0e 0d fd 20 65 25  |  n += 1..... e%|
000001b0  20 3d 20 2d 31 0d 01 18  04 0d 01 22 1d dc 20 32  | = -1......".. 2|
000001c0  2c 2d 33 32 2a 35 31 32  2c 30 2c 20 38 2c 30 2c  |,-32*512,0, 8,0,|
000001d0  33 32 2a 35 31 32 0d 01  2c 2c dc 20 36 2c 31 36  |32*512..,,. 6,16|
000001e0  2a 35 31 32 2c 33 32 2a  35 31 32 2c 33 32 2a 35  |*512,32*512,32*5|
000001f0  31 32 2c 31 36 2a 35 31  32 2c 33 32 2a 35 31 32  |12,16*512,32*512|
00000200  2c 30 0d 01 36 14 dc 20  38 2c 30 2c 2d 33 32 2a  |,0..6.. 8,0,-32*|
00000210  35 31 32 2c 20 35 0d 01  40 1e dc 20 32 2c 2d 38  |512, 5..@.. 2,-8|
00000220  2a 35 31 32 2c 30 2c 20  38 2c 38 2a 35 31 32 2c  |*512,0, 8,8*512,|
00000230  30 2c 20 35 0d 01 4a 1e  dc 20 32 2c 30 2c 2d 38  |0, 5..J.. 2,0,-8|
00000240  2a 35 31 32 2c 20 38 2c  30 2c 38 2a 35 31 32 2c  |*512, 8,0,8*512,|
00000250  20 35 0d 01 54 0b dc 20  30 2c 20 2d 31 0d 01 5e  | 5..T.. 0, -1..^|
00000260  04 0d 01 68 05 db 0d 01  72 04 0d 01 7c 34 f1 20  |...h....r...|4. |
00000270  8a 30 2c 30 29 20 22 43  6c 69 63 6b 20 6f 6e 20  |.0,0) "Click on |
00000280  74 68 65 20 73 74 61 72  74 20 70 6f 69 6e 74 20  |the start point |
00000290  6f 66 20 74 68 65 20 63  75 72 76 65 2e 22 0d 01  |of the curve."..|
000002a0  86 04 0d 01 90 0e 2a 70  6f 69 6e 74 65 72 20 31  |......*pointer 1|
000002b0  0d 01 9a 04 0d 01 a4 2a  f4 20 2a 2a 2a 2a 2a 2a  |.......*. ******|
000002c0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 20 6d 61 6b 65 20  |********** make |
000002d0  74 68 65 20 63 75 72 76  65 20 70 61 74 68 0d 01  |the curve path..|
000002e0  ae 04 0d 01 b8 0f de 20  63 75 72 76 65 25 20 36  |....... curve% 6|
000002f0  34 0d 01 c2 10 63 75 72  76 65 25 21 30 20 3d 20  |4....curve%!0 = |
00000300  32 0d 01 cc 2d f2 67 65  74 5f 70 6f 69 6e 74 28  |2...-.get_point(|
00000310  63 75 72 76 65 25 21 34  2c 20 63 75 72 76 65 25  |curve%!4, curve%|
00000320  21 38 2c 20 26 30 30 30  30 46 46 30 30 29 0d 01  |!8, &0000FF00)..|
00000330  d6 11 63 75 72 76 65 25  21 31 32 20 3d 20 36 0d  |..curve%!12 = 6.|
00000340  01 e0 04 0d 01 ea 34 f1  20 8a 30 2c 30 29 20 22  |......4. .0,0) "|
00000350  43 6c 69 63 6b 20 6f 6e  20 74 68 65 20 66 69 72  |Click on the fir|
00000360  73 74 20 63 6f 6e 74 72  6f 6c 20 70 6f 69 6e 74  |st control point|
00000370  22 20 89 28 31 30 29 0d  01 f4 2f f2 67 65 74 5f  |" .(10).../.get_|
00000380  70 6f 69 6e 74 28 63 75  72 76 65 25 21 31 36 2c  |point(curve%!16,|
00000390  20 63 75 72 76 65 25 21  32 30 2c 20 26 30 30 46  | curve%!20, &00F|
000003a0  46 30 30 30 30 29 0d 01  fe 04 0d 02 08 35 f1 20  |F0000).......5. |
000003b0  8a 30 2c 30 29 20 22 43  6c 69 63 6b 20 6f 6e 20  |.0,0) "Click on |
000003c0  74 68 65 20 73 65 63 6f  6e 64 20 63 6f 6e 74 72  |the second contr|
000003d0  6f 6c 20 70 6f 69 6e 74  22 20 89 28 31 30 29 0d  |ol point" .(10).|
000003e0  02 12 2f f2 67 65 74 5f  70 6f 69 6e 74 28 63 75  |../.get_point(cu|
000003f0  72 76 65 25 21 32 34 2c  20 63 75 72 76 65 25 21  |rve%!24, curve%!|
00000400  32 38 2c 20 26 30 30 46  46 30 30 30 30 29 0d 02  |28, &00FF0000)..|
00000410  1c 04 0d 02 26 2a f1 20  8a 30 2c 30 29 20 22 43  |....&*. .0,0) "C|
00000420  6c 69 63 6b 20 6f 6e 20  74 68 65 20 65 6e 64 20  |lick on the end |
00000430  70 6f 69 6e 74 22 20 89  28 31 32 29 0d 02 30 2f  |point" .(12)..0/|
00000440  f2 67 65 74 5f 70 6f 69  6e 74 28 63 75 72 76 65  |.get_point(curve|
00000450  25 21 33 32 2c 20 63 75  72 76 65 25 21 33 36 2c  |%!32, curve%!36,|
00000460  20 26 30 30 30 30 46 46  30 30 29 0d 02 3a 04 0d  | &0000FF00)..:..|
00000470  02 44 11 63 75 72 76 65  25 21 34 30 20 3d 20 34  |.D.curve%!40 = 4|
00000480  0d 02 4e 11 63 75 72 76  65 25 21 34 34 20 3d 20  |..N.curve%!44 = |
00000490  30 0d 02 58 04 0d 02 62  04 0d 02 6c 04 0d 02 76  |0..X...b...l...v|
000004a0  2e f4 20 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |.. *************|
000004b0  2a 2a 2a 20 64 72 61 77  20 69 74 20 6f 6e 74 6f  |*** draw it onto|
000004c0  20 74 68 65 20 73 63 72  65 65 6e 0d 02 80 04 0d  | the screen.....|
000004d0  02 8a 12 de 20 63 61 70  5f 6a 6f 69 6e 25 20 33  |.... cap_join% 3|
000004e0  32 0d 02 94 04 0d 02 9e  13 63 61 70 5f 6a 6f 69  |2........cap_joi|
000004f0  6e 25 3f 30 20 3d 20 30  0d 02 a8 13 63 61 70 5f  |n%?0 = 0....cap_|
00000500  6a 6f 69 6e 25 3f 31 20  3d 20 30 0d 02 b2 13 63  |join%?1 = 0....c|
00000510  61 70 5f 6a 6f 69 6e 25  3f 32 20 3d 20 30 0d 02  |ap_join%?2 = 0..|
00000520  bc 13 63 61 70 5f 6a 6f  69 6e 25 3f 33 20 3d 20  |..cap_join%?3 = |
00000530  30 0d 02 c6 30 63 61 70  5f 6a 6f 69 6e 25 21 34  |0...0cap_join%!4|
00000540  20 3d 20 26 31 30 30 30  30 30 20 20 20 20 20 20  | = &100000      |
00000550  20 20 20 3a f4 20 6d 69  74 72 65 20 6c 69 6d 69  |   :. mitre limi|
00000560  74 0d 02 d0 04 0d 02 da  1b 6c 69 6e 65 5f 74 68  |t........line_th|
00000570  69 63 6b 6e 65 73 73 25  20 3d 20 34 2a 32 35 36  |ickness% = 4*256|
00000580  0d 02 e4 04 0d 02 ee 2c  c8 99 20 22 43 6f 6c 6f  |.......,.. "Colo|
00000590  75 72 54 72 61 6e 73 5f  53 65 74 47 43 4f 4c 22  |urTrans_SetGCOL"|
000005a0  2c 26 46 46 46 46 46 46  30 30 2c 2c 2c 30 2c 30  |,&FFFFFF00,,,0,0|
000005b0  0d 02 f8 3d c8 99 20 22  44 72 61 77 5f 53 74 72  |...=.. "Draw_Str|
000005c0  6f 6b 65 22 2c 63 75 72  76 65 25 2c 30 2c 30 2c  |oke",curve%,0,0,|
000005d0  30 2c 6c 69 6e 65 5f 74  68 69 63 6b 6e 65 73 73  |0,line_thickness|
000005e0  25 2c 63 61 70 5f 6a 6f  69 6e 25 2c 30 0d 03 02  |%,cap_join%,0...|
000005f0  04 0d 03 0c 04 0d 03 16  04 0d 03 20 3c f4 20 2a  |........... <. *|
00000600  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 20  |*************** |
00000610  6e 6f 77 2c 20 68 65 72  65 27 73 20 74 68 65 20  |now, here's the |
00000620  63 6c 65 76 65 72 20 62  69 74 2e 2e 2e 20 67 65  |clever bit... ge|
00000630  74 20 74 68 65 0d 03 2a  3c f4 20 20 20 20 20 20  |t the..*<.      |
00000640  20 20 20 20 20 20 20 20  20 20 20 20 64 72 61 77  |            draw|
00000650  20 6d 6f 64 75 6c 65 20  74 6f 20 73 70 6c 69 74  | module to split|
00000660  20 74 68 65 20 70 61 74  68 20 75 70 20 69 6e 74  | the path up int|
00000670  6f 0d 03 34 27 f4 20 20  20 20 20 20 20 20 20 20  |o..4'.          |
00000680  20 20 20 20 20 20 20 20  69 6e 64 69 76 69 64 75  |        individu|
00000690  61 6c 20 6c 69 6e 65 73  0d 03 3e 04 0d 03 48 04  |al lines..>...H.|
000006a0  0d 03 52 3d f4 20 66 69  6e 64 20 6f 75 74 20 68  |..R=. find out h|
000006b0  6f 77 20 6c 61 72 67 65  20 61 20 62 75 66 66 65  |ow large a buffe|
000006c0  72 20 77 65 20 6e 65 65  64 20 66 6f 72 20 74 68  |r we need for th|
000006d0  65 20 6f 75 74 70 75 74  20 70 61 74 68 0d 03 5c  |e output path..\|
000006e0  04 0d 03 66 15 66 6c 61  74 6e 65 73 73 25 20 3d  |...f.flatness% =|
000006f0  20 38 2a 32 35 36 0d 03  70 44 c8 99 20 22 44 72  | 8*256..pD.. "Dr|
00000700  61 77 5f 50 72 6f 63 65  73 73 50 61 74 68 22 2c  |aw_ProcessPath",|
00000710  63 75 72 76 65 25 2c 28  31 3c 3c 32 38 29 2c 30  |curve%,(1<<28),0|
00000720  2c 66 6c 61 74 6e 65 73  73 25 2c 30 2c 30 2c 30  |,flatness%,0,0,0|
00000730  2c 33 20 b8 20 73 69 7a  65 25 0d 03 7a 04 0d 03  |,3 . size%..z...|
00000740  84 13 de 20 70 6f 69 6e  74 73 25 20 73 69 7a 65  |... points% size|
00000750  25 0d 03 8e 04 0d 03 98  33 f4 20 69 6e 69 74 69  |%.......3. initi|
00000760  61 6c 69 73 65 20 74 68  65 20 70 6f 69 6e 74 73  |alise the points|
00000770  25 20 70 61 74 68 20 74  6f 20 67 69 76 65 20 69  |% path to give i|
00000780  74 27 73 20 73 69 7a 65  0d 03 a2 11 70 6f 69 6e  |t's size....poin|
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00000d70