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!AWMar94/Goodies/Basic/!PathLib/Library/OS_units/Styles

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.

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Filename: !AWMar94/Goodies/Basic/!PathLib/Library/OS_units/Styles
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    1REM > PathLib:OS_units.Styles
    2REM **********************************************************
    3REM **********************************************************
    4REM
    5REM PROCEDURES FOR CONTROLLING THE STYLE OF LINE DRAWING
    6REM
    7REM Reserved variables:
    8REM 
    9REM                    line_style%
   10REM
   11REM **********************************************************
   12REM **********************************************************
   13
   14
   15DEF FNPath_CreateLineStyle(thickness%)
   16 REM -----------------------------
   17 REM
   18 REM Creates line style byte array
   19 REM (Default: Bevel joins)
   20 REM
   21 REM The thickness of the line is
   22 REM given in OS units
   23 REM
   24 REM 5 words
   25 REM -----------------------------
   26 LOCAL i% : DIM line_style% 20
   27 FOR i%=0 TO 12 STEP 4 : line_style%!i%=0 : NEXT
   28 line_style%?0=2
   29 line_style%!16=thickness%<<8
   30 =line_style%
   31
   32DEF PROCPath_LineThickness(thickness%)
   33  line_style%!16=thickness%<<8
   34  ENDPROC
   35
   36REM ***************************
   37REM ***************************
   38REM 
   39REM   JOIN STYLES 
   40REM
   41REM   I.e. How lines are joined 
   42REM 
   43REM ***************************
   44REM ***************************
   45
   46DEF PROCPath_RoundJoins
   47 line_style%?0=1
   48 ENDPROC
   49
   50DEF PROCPath_BevelJoins
   51 line_style%?0=2
   52 ENDPROC
   53
   54DEF PROCPath_MitreJoins(mitre_limit)
   55 REM -----------------------------------------
   56 REM
   57 REM Joins are Mitred    i.e. flattened   
   58 REM
   59 REM If Mitre_length > mitre_limit * Line_width
   60 REM then joins are bevelled
   61 REM
   62 REM ----------------------------------------
   63 line_style%?0=0
   64 line_style%?7=INT(mitre_limit)DIV256 : line_style%?6=INT(mitre_limit)MOD256
   65 mitrelimit=INT((INT(mitre_limit)-mitre_limit)*256*256)
   66 line_style%?5=INT(mitre_limit)DIV256 : line_style%?4=INT(mitre_limit)MOD256
   67 ENDPROC
   68
   69REM ***************************
   70REM ***************************
   71REM 
   72REM   CAP STYLES 
   73REM
   74REM   I.e. How lines are ended 
   75REM 
   76REM ***************************
   77REM ***************************
   78
   79DEF PROCPath_ButtLeadingCaps
   80 line_style%?1=0
   81 ENDPROC
   82
   83DEF PROCPath_ButtTrailingCaps
   84 line_style%?2=0
   85 ENDPROC
   86 
   87DEF PROCPath_RoundLeadingCaps
   88 line_style%?1=1
   89 ENDPROC
   90
   91DEF PROCPath_RoundTrailingCaps
   92 line_style%?2=1
   93 ENDPROC
   94
   95DEF PROCPath_SquareLeadingCaps
   96 line_style%?1=2
   97 ENDPROC
   98
   99DEF PROCPath_SquareTrailingCaps
  100 line_style%?2=2
  101 ENDPROC
  102 
  103DEF PROCPath_TriangularLeadingCaps(width,pointforward)
  104 REM --------------------------------------
  105 REM
  106 REM Draws triangular caps.
  107 REM
  108 REM N.B.  "width" and "pointforward" are
  109 REM       measured in terms of line width.
  110 REM
  111 REM
  112 REM                     |\    
  113 REM                  ===| >   
  114 REM                     |/
  115 REM
  116 REM
  117 REM E.g.  width=3 means that the cap will
  118 REM       be 3 line widths on either side
  119 REM                 
  120 REM --------------------------------------
  121 line_style%?1=3
  122 line_style%?9=INT(width) : line_style%?8=(width-INT(width))<<8
  123 line_style%?11=INT(pointforward)
  124 line_style%?8=(pointforward-INT(pointforward))<<8 
  125 ENDPROC
  126
  127DEF PROCPath_TriangularTrailingCaps(width,pointbackward)
  128 REM --------------------------------------
  129 REM
  130 REM Draws triangular caps.
  131 REM
  132 REM N.B.  "width" and "pointbackward" are
  133 REM       measured in terms of line width.
  134 REM
  135 REM
  136 REM                 /|      
  137 REM                < |===   
  138 REM                 \|
  139 REM
  140 REM
  141 REM
  142 REM E.g.  width=3 means that the cap will
  143 REM       be 3 line widths on either side
  144 REM
  145 REM ---------------------------------------                
  146 line_style%?2=3
  147 line_style%?13=INT(width) : line_style%?12=(width-INT(width))<<8
  148 line_style%?15=INT(pointbackward)
  149 line_style%?14=(pointbackward-INT(pointbackward))<<8 
  150 ENDPROC
  151
  152REM ***************************
  153REM ***************************
  154REM 
  155REM   DASH PATTERNS 
  156REM
  157REM   I.e. Drawing dashed lines 
  158REM 
  159REM ***************************
  160REM ***************************
  161
  162
  163DEF FNPath_EquidistantDashPattern(length%)
  164 REM -----------------------------
  165 REM
  166 REM Equidistant Dash Pattern
  167 REM  
  168 REM          - - - - - - - -
  169 REM
  170 REM Each dash and space of length
  171 REM length% in OS units
  172 REM
  173 REM -----------------------------
  174 DIM dash% 12
  175 dash%!0=0 : dash%!4=1 : dash%!8=length%<<8
  176 =dash%
  177
  178DEF FNPath_DashPattern(stroke_length%,move_length%)
  179 REM -----------------------------
  180 REM
  181 REM Non-equidistant Dash Pattern
  182 REM  
  183 REM  -- -- -- -- -- -- -- -- --
  184 REM
  185 REM Arguments in OS units
  186 REM
  187 REM -----------------------------
  188 DIM dash% 16
  189 dash%!0=0 : dash%!4=2
  190 dash%!8=stroke_length%<<8 : dash%!12=move_length%<<8
  191 =dash%
  192
  193DEF FNPath_DotDashPattern(stroke_length%)
  194 REM -----------------------------
  195 REM
  196 REM Non-equidistant Dash Pattern
  197 REM  
  198 REM  -- - -- - -- - -- - -- -
  199 REM
  200 REM Arguments in OS units
  201 REM
  202 REM -----------------------------
  203 DIM dash% 24
  204 dash%!0=0 : dash%!4=4
  205 dash%!8=stroke_length%<<8        : dash%!12=(stroke_length%DIV2)<<8
  206 dash%!16=(stroke_length%DIV2)<<8 : dash%!20=(stroke_length%DIV2)<<8 
  207 =dash%
  208 
  209
  210
  211   
  212REM *******************
  213REM *******************
  214REM ***                
  215REM ***  Drawing       
  216REM ***  -------       
  217REM ***                 
  218REM *******************
  219REM *******************
  220
  221DEF PROCPath_LineDraw(path%,colour%)
  222 REM ---------------------------------------------------------
  223 REM
  224 REM Draws to the VDU screen the path object contained in the
  225 REM byte array path%
  226 REM
  227 REM  N.B.
  228 REM 
  229 REM    All coordinates in path% are in Draw units (OS<<8) 
  230 REM
  231 REM 
  232 REM --------------------------------------------------------
  233     GCOL colour%
  234     SYS "Draw_Stroke",path%
  235ENDPROC
  236
  237
  238DEF PROCPath_LineDrawWithStyle(path%,colour%,style%,dash%)
  239 REM ---------------------------------------------------------
  240 REM
  241 REM Draws to the VDU screen the path object contained in the
  242 REM byte array path%
  243 REM
  244 REM  N.B.
  245 REM 
  246 REM    All coordinates in path% are in Draw units (OS<<8) 
  247 REM 
  248 REM The arguments are as follows:
  249 REM
  250 REM    1) style%      (pointer to 4 word byte array)
  251 REM    2) dash%       (ponter to dash pattern array)
  252 REM 
  253 REM --------------------------------------------------------
  254     LOCAL thickness%
  255     GCOL colour%
  256     thickness%=style%!16
  257     SYS "Draw_Stroke",path%,,,,thickness%,style%,dash%
  258ENDPROC
  259
  260
  261DEF PROCPath_SmoothDraw(path%,colour%)
  262 REM ---------------------------------------------------------
  263 REM
  264 REM Draws to the VDU screen the path object contained in the
  265 REM byte array path% . The assumption is that path% contains
  266 REM line segments which are Bezier curves which need to be
  267 REM drawn "smoothly"
  268 REM
  269 REM  N.B.
  270 REM 
  271 REM    All coordinates in path% are in Draw units (OS<<8) 
  272 REM 
  273 REM --------------------------------------------------------
  274     GCOL colour%
  275     SYS "Draw_Stroke",path%,,,128
  276ENDPROC
  277
  278DEF PROCPath_SmoothDrawWithStyle(path%,colour%,style%,dash%)
  279 REM ---------------------------------------------------------
  280 REM
  281 REM Draws to the VDU screen the path object contained in the
  282 REM byte array path% . The assumption is that path% contains
  283 REM line segments which are Bezier curves which need to be
  284 REM drawn "smoothly"
  285 REM
  286 REM  N.B.
  287 REM 
  288 REM    All coordinates in path% are in Draw units (OS<<8) 
  289 REM
  290 REM 
  291 REM The arguments are as follows:
  292 REM
  293 REM    1) style%      (pointer to 5 word byte array)
  294 REM    2) dash%       (ponter to dash pattern array)
  295 REM  
  296 REM --------------------------------------------------------
  297     LOCAL thickness%
  298     thickness%=style%!16
  299     GCOL colour%
  300     SYS "Draw_Stroke",path%,,,128,thickness%,style%,dash%
  301ENDPROC
  302
  303REM *******************
  304REM *******************
  305REM ***                
  306REM ***  Fill_Styles       
  307REM ***  -----------       
  308REM ***                 
  309REM *******************
  310REM *******************
  311
  312DEF FNPath_FillEvenOdd
  313 REM -----------------------------
  314 REM
  315 REM Fills using even-odd rule to
  316 REM halfway through boundary
  317 REM  
  318 REM -----------------------------
  319=&32
  320
  321DEF FNPath_FillPositive
  322 REM -----------------------------
  323 REM
  324 REM Fills using positive rule to
  325 REM halfway through boundary
  326 REM  
  327 REM -----------------------------
  328=&33
  329
  330DEF FNPath_FillNegative
  331 REM -----------------------------
  332 REM
  333 REM Fills using negative rule to
  334 REM halfway through boundary
  335 REM  
  336 REM -----------------------------
  337=&31

� > PathLib:OS_units.Styles
@� **********************************************************
@� **********************************************************
�
:� PROCEDURES FOR CONTROLLING THE STYLE OF LINE DRAWING
�
� Reserved variables:
� 
	$�                    line_style%

�
@� **********************************************************
@� **********************************************************



'� �Path_CreateLineStyle(thickness%)
$ � -----------------------------
 �
$ � Creates line style byte array
 � (Default: Bevel joins)
 �
# � The thickness of the line is
 � given in OS units
 �
 � 5 words
$ � -----------------------------
 � i% : � line_style% 20
+ � i%=0 � 12 � 4 : line_style%!i%=0 : �
 line_style%?0=2
! line_style%!16=thickness%<<8
 =line_style%

 %� �Path_LineThickness(thickness%)
!"  line_style%!16=thickness%<<8
"  �
#
$!� ***************************
%!� ***************************
&� 
'�   JOIN STYLES 
(�
)"�   I.e. How lines are joined 
*� 
+!� ***************************
,!� ***************************
-
.� �Path_RoundJoins
/ line_style%?0=1
0 �
1
2� �Path_BevelJoins
3 line_style%?0=2
4 �
5
6#� �Path_MitreJoins(mitre_limit)
70 � -----------------------------------------
8 �
9, � Joins are Mitred    i.e. flattened   
: �
;1 � If Mitre_length > mitre_limit * Line_width
< � then joins are bevelled
= �
>/ � ----------------------------------------
? line_style%?0=0
@H line_style%?7=�(mitre_limit)�256 : line_style%?6=�(mitre_limit)�256
A7 mitrelimit=�((�(mitre_limit)-mitre_limit)*256*256)
BH line_style%?5=�(mitre_limit)�256 : line_style%?4=�(mitre_limit)�256
C �
D
E!� ***************************
F!� ***************************
G� 
H�   CAP STYLES 
I�
J!�   I.e. How lines are ended 
K� 
L!� ***************************
M!� ***************************
N
O� �Path_ButtLeadingCaps
P line_style%?1=0
Q �
R
S� �Path_ButtTrailingCaps
T line_style%?2=0
U �
V 
W� �Path_RoundLeadingCaps
X line_style%?1=1
Y �
Z
[� �Path_RoundTrailingCaps
\ line_style%?2=1
] �
^
_� �Path_SquareLeadingCaps
` line_style%?1=2
a �
b
c� �Path_SquareTrailingCaps
d line_style%?2=2
e �
f 
g5� �Path_TriangularLeadingCaps(width,pointforward)
h- � --------------------------------------
i �
j � Draws triangular caps.
k �
l+ � N.B.  "width" and "pointforward" are
m- �       measured in terms of line width.
n �
o �
p! �                     |\    
q! �                  ===| >   
r �                     |/
s �
t �
u, � E.g.  width=3 means that the cap will
v, �       be 3 line widths on either side
w �                 
x- � --------------------------------------
y line_style%?1=3
z? line_style%?9=�(width) : line_style%?8=(width-�(width))<<8
{# line_style%?11=�(pointforward)
|5 line_style%?8=(pointforward-�(pointforward))<<8 
} �
~
7� �Path_TriangularTrailingCaps(width,pointbackward)
�- � --------------------------------------
� �
� � Draws triangular caps.
� �
�, � N.B.  "width" and "pointbackward" are
�- �       measured in terms of line width.
� �
� �
� �                 /|      
� �                < |===   
� �                 \|
� �
� �
� �
�, � E.g.  width=3 means that the cap will
�, �       be 3 line widths on either side
� �
�> � ---------------------------------------                
� line_style%?2=3
�A line_style%?13=�(width) : line_style%?12=(width-�(width))<<8
�$ line_style%?15=�(pointbackward)
�8 line_style%?14=(pointbackward-�(pointbackward))<<8 
� �
�
�!� ***************************
�!� ***************************
�� 
��   DASH PATTERNS 
��
�"�   I.e. Drawing dashed lines 
�� 
�!� ***************************
�!� ***************************
�
�
�+� �Path_EquidistantDashPattern(length%)
�$ � -----------------------------
� �
� � Equidistant Dash Pattern
� �  
� �          - - - - - - - -
� �
�$ � Each dash and space of length
� � length% in OS units
� �
�$ � -----------------------------
� � dash% 12
�/ dash%!0=0 : dash%!4=1 : dash%!8=length%<<8
� =dash%
�
�4� �Path_DashPattern(stroke_length%,move_length%)
�$ � -----------------------------
� �
�# � Non-equidistant Dash Pattern
� �  
�" �  -- -- -- -- -- -- -- -- --
� �
� � Arguments in OS units
� �
�$ � -----------------------------
� � dash% 16
� dash%!0=0 : dash%!4=2
�9 dash%!8=stroke_length%<<8 : dash%!12=move_length%<<8
� =dash%
�
�*� �Path_DotDashPattern(stroke_length%)
�$ � -----------------------------
� �
�# � Non-equidistant Dash Pattern
� �  
�  �  -- - -- - -- - -- - -- -
� �
� � Arguments in OS units
� �
�$ � -----------------------------
� � dash% 24
� dash%!0=0 : dash%!4=4
�F dash%!8=stroke_length%<<8        : dash%!12=(stroke_length%�2)<<8
�E dash%!16=(stroke_length%�2)<<8 : dash%!20=(stroke_length%�2)<<8 
� =dash%
� 
�
�
�   
�� *******************
�� *******************
�� ***                
�� ***  Drawing       
�� ***  -------       
�� ***                 
�� *******************
�� *******************
�
�#� �Path_LineDraw(path%,colour%)
�@ � ---------------------------------------------------------
� �
�? � Draws to the VDU screen the path object contained in the
� � byte array path%
� �
� �  N.B.
� � 
�= �    All coordinates in path% are in Draw units (OS<<8) 
� �
� � 
�? � --------------------------------------------------------
�     � colour%
�     ș "Draw_Stroke",path%
��
�
�
�9� �Path_LineDrawWithStyle(path%,colour%,style%,dash%)
�@ � ---------------------------------------------------------
� �
�? � Draws to the VDU screen the path object contained in the
� � byte array path%
� �
� �  N.B.
� � 
�= �    All coordinates in path% are in Draw units (OS<<8) 
� � 
�$ � The arguments are as follows:
� �
�7 �    1) style%      (pointer to 4 word byte array)
�7 �    2) dash%       (ponter to dash pattern array)
� � 
�? � --------------------------------------------------------
�     � thickness%
�     � colour%
     thickness%=style%!16
:     ș "Draw_Stroke",path%,,,,thickness%,style%,dash%
�


%� �Path_SmoothDraw(path%,colour%)
@ � ---------------------------------------------------------
 �
? � Draws to the VDU screen the path object contained in the
	? � byte array path% . The assumption is that path% contains

= � line segments which are Bezier curves which need to be
 � drawn "smoothly"
 �

 �  N.B.
 � 
= �    All coordinates in path% are in Draw units (OS<<8) 
 � 
? � --------------------------------------------------------
     � colour%
%     ș "Draw_Stroke",path%,,,128
�

;� �Path_SmoothDrawWithStyle(path%,colour%,style%,dash%)
@ � ---------------------------------------------------------
 �
? � Draws to the VDU screen the path object contained in the
? � byte array path% . The assumption is that path% contains
= � line segments which are Bezier curves which need to be
 � drawn "smoothly"
 �
 �  N.B.
 � 
 = �    All coordinates in path% are in Draw units (OS<<8) 
! �
" � 
#$ � The arguments are as follows:
$ �
%7 �    1) style%      (pointer to 5 word byte array)
&7 �    2) dash%       (ponter to dash pattern array)
' �  
(? � --------------------------------------------------------
)     � thickness%
*     thickness%=style%!16
+     � colour%
,=     ș "Draw_Stroke",path%,,,128,thickness%,style%,dash%
-�
.
/� *******************
0� *******************
1� ***                
2� ***  Fill_Styles       
3� ***  -----------       
4� ***                 
5� *******************
6� *******************
7
8� �Path_FillEvenOdd
9$ � -----------------------------
: �
;# � Fills using even-odd rule to
< � halfway through boundary
= �  
>$ � -----------------------------
?=&32
@
A� �Path_FillPositive
B$ � -----------------------------
C �
D# � Fills using positive rule to
E � halfway through boundary
F �  
G$ � -----------------------------
H=&33
I
J� �Path_FillNegative
K$ � -----------------------------
L �
M# � Fills using negative rule to
N � halfway through boundary
O �  
P$ � -----------------------------
Q=&31
�
00000000  0d 00 01 1f f4 20 3e 20  50 61 74 68 4c 69 62 3a  |..... > PathLib:|
00000010  4f 53 5f 75 6e 69 74 73  2e 53 74 79 6c 65 73 0d  |OS_units.Styles.|
00000020  00 02 40 f4 20 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |..@. ***********|
00000030  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000050  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 0d  |***************.|
00000060  00 03 40 f4 20 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |..@. ***********|
00000070  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000090  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 0d  |***************.|
000000a0  00 04 05 f4 0d 00 05 3a  f4 20 50 52 4f 43 45 44  |.......:. PROCED|
000000b0  55 52 45 53 20 46 4f 52  20 43 4f 4e 54 52 4f 4c  |URES FOR CONTROL|
000000c0  4c 49 4e 47 20 54 48 45  20 53 54 59 4c 45 20 4f  |LING THE STYLE O|
000000d0  46 20 4c 49 4e 45 20 44  52 41 57 49 4e 47 0d 00  |F LINE DRAWING..|
000000e0  06 05 f4 0d 00 07 19 f4  20 52 65 73 65 72 76 65  |........ Reserve|
000000f0  64 20 76 61 72 69 61 62  6c 65 73 3a 0d 00 08 06  |d variables:....|
00000100  f4 20 0d 00 09 24 f4 20  20 20 20 20 20 20 20 20  |. ...$.         |
00000110  20 20 20 20 20 20 20 20  20 20 20 6c 69 6e 65 5f  |           line_|
00000120  73 74 79 6c 65 25 0d 00  0a 05 f4 0d 00 0b 40 f4  |style%........@.|
00000130  20 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  | ***************|
00000140  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000160  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 0d 00 0c 40 f4  |***********...@.|
00000170  20 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  | ***************|
00000180  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
000001a0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 0d 00 0d 04 0d  |***********.....|
000001b0  00 0e 04 0d 00 0f 27 dd  20 a4 50 61 74 68 5f 43  |......'. .Path_C|
000001c0  72 65 61 74 65 4c 69 6e  65 53 74 79 6c 65 28 74  |reateLineStyle(t|
000001d0  68 69 63 6b 6e 65 73 73  25 29 0d 00 10 24 20 f4  |hickness%)...$ .|
000001e0  20 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  | ---------------|
000001f0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 0d 00  |--------------..|
00000200  11 06 20 f4 0d 00 12 24  20 f4 20 43 72 65 61 74  |.. ....$ . Creat|
00000210  65 73 20 6c 69 6e 65 20  73 74 79 6c 65 20 62 79  |es line style by|
00000220  74 65 20 61 72 72 61 79  0d 00 13 1d 20 f4 20 28  |te array.... . (|
00000230  44 65 66 61 75 6c 74 3a  20 42 65 76 65 6c 20 6a  |Default: Bevel j|
00000240  6f 69 6e 73 29 0d 00 14  06 20 f4 0d 00 15 23 20  |oins).... ....# |
00000250  f4 20 54 68 65 20 74 68  69 63 6b 6e 65 73 73 20  |. The thickness |
00000260  6f 66 20 74 68 65 20 6c  69 6e 65 20 69 73 0d 00  |of the line is..|
00000270  16 18 20 f4 20 67 69 76  65 6e 20 69 6e 20 4f 53  |.. . given in OS|
00000280  20 75 6e 69 74 73 0d 00  17 06 20 f4 0d 00 18 0e  | units.... .....|
00000290  20 f4 20 35 20 77 6f 72  64 73 0d 00 19 24 20 f4  | . 5 words...$ .|
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00001e90  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 0d  |***************.|
00001ea0  01 36 19 f4 20 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |.6.. ***********|
00001eb0  2a 2a 2a 2a 2a 2a 2a 2a  0d 01 37 04 0d 01 38 17  |********..7...8.|
00001ec0  dd 20 a4 50 61 74 68 5f  46 69 6c 6c 45 76 65 6e  |. .Path_FillEven|
00001ed0  4f 64 64 0d 01 39 24 20  f4 20 2d 2d 2d 2d 2d 2d  |Odd..9$ . ------|
00001ee0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
00001ef0  2d 2d 2d 2d 2d 2d 2d 0d  01 3a 06 20 f4 0d 01 3b  |-------..:. ...;|
00001f00  23 20 f4 20 46 69 6c 6c  73 20 75 73 69 6e 67 20  |# . Fills using |
00001f10  65 76 65 6e 2d 6f 64 64  20 72 75 6c 65 20 74 6f  |even-odd rule to|
00001f20  0d 01 3c 1f 20 f4 20 68  61 6c 66 77 61 79 20 74  |..<. . halfway t|
00001f30  68 72 6f 75 67 68 20 62  6f 75 6e 64 61 72 79 0d  |hrough boundary.|
00001f40  01 3d 08 20 f4 20 20 0d  01 3e 24 20 f4 20 2d 2d  |.=. .  ..>$ . --|
00001f50  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
00001f60  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 0d 01 3f 08 3d  |-----------..?.=|
00001f70  26 33 32 0d 01 40 04 0d  01 41 18 dd 20 a4 50 61  |&32..@...A.. .Pa|
00001f80  74 68 5f 46 69 6c 6c 50  6f 73 69 74 69 76 65 0d  |th_FillPositive.|
00001f90  01 42 24 20 f4 20 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |.B$ . ----------|
00001fa0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
00001fb0  2d 2d 2d 0d 01 43 06 20  f4 0d 01 44 23 20 f4 20  |---..C. ...D# . |
00001fc0  46 69 6c 6c 73 20 75 73  69 6e 67 20 70 6f 73 69  |Fills using posi|
00001fd0  74 69 76 65 20 72 75 6c  65 20 74 6f 0d 01 45 1f  |tive rule to..E.|
00001fe0  20 f4 20 68 61 6c 66 77  61 79 20 74 68 72 6f 75  | . halfway throu|
00001ff0  67 68 20 62 6f 75 6e 64  61 72 79 0d 01 46 08 20  |gh boundary..F. |
00002000  f4 20 20 0d 01 47 24 20  f4 20 2d 2d 2d 2d 2d 2d  |.  ..G$ . ------|
00002010  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
00002020  2d 2d 2d 2d 2d 2d 2d 0d  01 48 08 3d 26 33 33 0d  |-------..H.=&33.|
00002030  01 49 04 0d 01 4a 18 dd  20 a4 50 61 74 68 5f 46  |.I...J.. .Path_F|
00002040  69 6c 6c 4e 65 67 61 74  69 76 65 0d 01 4b 24 20  |illNegative..K$ |
00002050  f4 20 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |. --------------|
00002060  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 0d  |---------------.|
00002070  01 4c 06 20 f4 0d 01 4d  23 20 f4 20 46 69 6c 6c  |.L. ...M# . Fill|
00002080  73 20 75 73 69 6e 67 20  6e 65 67 61 74 69 76 65  |s using negative|
00002090  20 72 75 6c 65 20 74 6f  0d 01 4e 1f 20 f4 20 68  | rule to..N. . h|
000020a0  61 6c 66 77 61 79 20 74  68 72 6f 75 67 68 20 62  |alfway through b|
000020b0  6f 75 6e 64 61 72 79 0d  01 4f 08 20 f4 20 20 0d  |oundary..O. .  .|
000020c0  01 50 24 20 f4 20 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |.P$ . ----------|
000020d0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
000020e0  2d 2d 2d 0d 01 51 08 3d  26 33 31 0d ff           |---..Q.=&31..|
000020ed

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