Draw path blocks consist of a block of words; code followed by any parameters. The block is terminated by an 'End of path' element.
Code Parameters Meaning
0 - End of path (when writing a path a parameter is used to indicate the remaining length of the block, which is updated as data is written and the end of path marker is moved)
1 pointer Continuation of path at pointer
2 x, y Move to x,y starting a new sub-path
3 x, y Move to x,y without starting a new sub-path (internal use)
4 - Close sub-path with move
5 - Close sub-path with line
6 cx1, cy1,
cx2, cy2,
x, y Bezier curve to x,y using control points cx1, cy1 and cx2, cy2
7 x, y Move to x,y without starting a new sub-path (mostly for internal use)
8 x, y Line to x,y
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