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- ddddeeeeffffppppaaaatttttttteeeerrrrnnnn((((3333GGGG)))) ddddeeeeffffppppaaaatttttttteeeerrrrnnnn((((3333GGGG))))
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- NNNNAAAAMMMMEEEE
- ddddeeeeffffppppaaaatttttttteeeerrrrnnnn - defines patterns
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- CCCC SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
- vvvvooooiiiidddd ddddeeeeffffppppaaaatttttttteeeerrrrnnnn((((nnnn,,,, ssssiiiizzzzeeee,,,, mmmmaaaasssskkkk))))
- sssshhhhoooorrrrtttt nnnn,,,, ssssiiiizzzzeeee;;;;
- uuuunnnnssssiiiiggggnnnneeeedddd sssshhhhoooorrrrtttt mmmmaaaasssskkkk[[[[]]]];;;;
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- PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
- _n expects the constant that you want to use as an identifier for the
- pattern described by _m_a_s_k. This constant is used as an index into
- a table of patterns. By default, pattern 0 is a 16X16 solid
- pattern that cannot be changed.
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- _s_i_z_e expects the size of the pattern: 16, 32, or 64 for a 16x16-,
- 32x32-, or 64x64-bit pattern, respectively.
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- _m_a_s_k expects an array of 16-bit integers that form the actual bit
- pattern. The system stores the pattern in a pattern table at
- index _n. The pattern is described from left to right and bottom
- to top, just as characters are described in a raster font.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- ddddeeeeffffppppaaaatttttttteeeerrrrnnnn allows you to define an arbitrary pattern and assign it an
- identifier. You can later reference this pattern in other routines via
- its identifier. Patterns are available to all windows when using
- multiple windows.
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- Patterns affect the filling of polygons, including rectangles, arcs, and
- circles, as well as polygons specified with individual vertices. They
- also affect the filling of the window when _c_l_e_a_r(3g) is called. Patterns
- have no effect on the scan conversion of points, lines, or characters, or
- on pixel write or copy operations.
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- When a pattern is active (see sssseeeettttppppaaaatttttttteeeerrrrnnnn), it is effectively replicated
- across the entire screen, with the edges of pattern tiles aligned to the
- left and bottom edges of the screen. Bit 15 of each 16-bit description
- word is leftmost, and words are assembled left to right, then bottom to
- top, to form each pattern square. Pixels on the screen that correspond
- to zeros in the pattern remain unmodified during scan conversion of
- polygons. No changes are made to any bitplane bank of a protected pixel.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- deflinestyle, defrasterfont, getpattern, setpattern
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- NNNNOOOOTTTTEEEESSSS
- This routine is available only in immediate mode.
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- Some machines do not support 64x64 patterns. Call
- ggggeeeettttggggddddeeeesssscccc((((GGGGDDDD____PPPPAAAATTTTSSSSIIIIZZZZEEEE____66664444)))) to determine the availability of 64x64 patterns.
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- PPPPaaaaggggeeee 1111
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- ddddeeeeffffppppaaaatttttttteeeerrrrnnnn((((3333GGGG)))) ddddeeeeffffppppaaaatttttttteeeerrrrnnnn((((3333GGGG))))
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- There is a performance penalty on the Personal Iris for non-solid
- patterns.
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- When ddddeeeeffffppppaaaatttttttteeeerrrrnnnn is used to modify the current pattern, the new pattern
- becomes current only when sssseeeettttppppaaaatttttttteeeerrrrnnnn is called again.
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- PPPPaaaaggggeeee 2222
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