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- ppppiiiicccckkkk((((3333GGGG)))) ppppiiiicccckkkk((((3333GGGG))))
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- NNNNAAAAMMMMEEEE
- ppppiiiicccckkkk - puts the system in picking mode
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- FFFFOOOORRRRTTTTRRRRAAAANNNN 77777777 SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee ppppiiiicccckkkk((((bbbbuuuuffffffffeeeerrrr,,,, nnnnuuuummmmnnnnaaaammmm))))
- iiiinnnntttteeeeggggeeeerrrr****2222 bbbbuuuuffffffffeeeerrrr((((****))))
- iiiinnnntttteeeeggggeeeerrrr****4444 nnnnuuuummmmnnnnaaaammmm
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- PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
- _b_u_f_f_e_r expects the array to use for storing names.
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- _n_u_m_n_a_m expects the maximum number of names to store. This must not
- exceed the number of elements in _b_u_f_f_e_r.
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- ppppiiiicccckkkk facilitates the cursor as a pointing object. When you draw an image
- in picking mode, nothing is drawn. It places a special viewing matrix on
- the stack, which discards everything in the image that does not intersect
- a small region around the cursor origin.
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- The graphical items that intersect the picking region are hits and store
- the contents of the name stack in _b_u_f_f_e_r. Picking does not work if you
- issue a new viewport in picking mode.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- endpic, endsel, gselec, picksi, pushna, popnam, loadna
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- NNNNOOOOTTTTEEEE
- This routine is available only in immediate mode.
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- In order to pick a large point or a wide line in picking mode, the
- selecting region must intersect the displayed point center or the
- displayed line center respectively. The displayed point center is the
- imaginary point of size 1 specified by the same vertex as the displayed
- point. The displayed line center is the imaginary line of width 1
- specified by the same vertices as the displayed line. In case of a very
- large point or very wide line, you may want to consider drawing a filled
- circle or a filled rectangle respectively instead.
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- PPPPaaaaggggeeee 1111
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