home *** CD-ROM | disk | FTP | other *** search
-
-
-
- ggggsssseeeelllleeeecccc((((3333GGGG)))) ggggsssseeeelllleeeecccc((((3333GGGG))))
-
-
-
- NNNNAAAAMMMMEEEE
- ggggsssseeeelllleeeecccc - puts the system in selecting mode
-
- FFFFOOOORRRRTTTTRRRRAAAANNNN 77777777 SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee ggggsssseeeelllleeeecccc((((bbbbuuuuffffffffeeeerrrr,,,, nnnnuuuummmmnnnnaaaammmm))))
- iiiinnnntttteeeeggggeeeerrrr****2222 bbbbuuuuffffffffeeeerrrr((((****))))
- iiiinnnntttteeeeggggeeeerrrr****4444 nnnnuuuummmmnnnnaaaammmm
-
- PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
- _b_u_f_f_e_r expects the buffer into which you want the system to save the
- contents of the names stack. A name is a 16-bit number, that
- you load on the name stack just before you called a drawing
- routine.
-
- _n_u_m_n_a_m_e expects the maximum number of names that you want the system to
- save. This number must not exceed the number of elements in
- _b_u_f_f_e_r.
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- ggggsssseeeelllleeeecccc turns on the selecting mode. When in selecting mode, the system
- notes when a drawing routine intersects the selecting region and writes
- the contents of the names stack to the specified buffer. If you push a
- name onto the names stack just before you call each drawing routine, you
- can record which drawing routines intersected the selecting region.
-
- Use the current viewing matrix to define the selecting region.
-
- ggggsssseeeelllleeeecccc and ppppiiiicccckkkk are identical except ggggsssseeeelllleeeecccc allows you to create a
- viewing matrix in selecting mode. To end select mode, call _e_n_d_s_e_l.
-
- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- endpic, endsel, pick, picksi, initna pushna, popnam, loadna
-
- NNNNOOOOTTTTEEEE
- This routine is available only in immediate mode.
-
- In order to select a large point or a wide line in selecting 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.
-
-
-
-
-
-
-
-
-
-
-
- PPPPaaaaggggeeee 1111
-
-
-
-