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-XScreenSaver(1) XScreenSaver(1)
-
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-N\bNA\bAM\bME\bE
- penrose - draws quasiperiodic tilings
-
-S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
- p\bpe\ben\bnr\bro\bos\bse\be [-display _\bh_\bo_\bs_\bt_\b:_\bd_\bi_\bs_\bp_\bl_\ba_\by_\b._\bs_\bc_\br_\be_\be_\bn] [-foreground _\bc_\bo_\bl_\bo_\br]
- [-background _\bc_\bo_\bl_\bo_\br] [-window] [-root] [-mono] [-install]
- [-visual _\bv_\bi_\bs_\bu_\ba_\bl] [-ncolors _\bi_\bn_\bt_\be_\bg_\be_\br] [-delay _\bm_\bi_\bc_\br_\bo_\bs_\be_\bc_\bo_\bn_\bd_\bs]
- [-size _\bi_\bn_\bt_\be_\bg_\be_\br] [-ammann] [-no-ammann]
-
-
-D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
- The _\bp_\be_\bn_\br_\bo_\bs_\be program draws quasiperiodic tilings.
-
- See Onoda, Steinhardt, DiVincenzo and Socolar in Phys.
- Rev. Lett. 60, #25, 1988 or Strandburg in Computers in
- Physics, Sep/Oct 1991.
-
- This implementation uses the simpler version of the growth
- algorithm, i.e., if there are no forced vertices, a ran-
- domly chosen tile is added to a randomly chosen vertex (no
- preference for those 108 degree angles).
-
- There are two essential differences to the algorithm pre-
- sented in the literature: First, we do not allow the
- tiling to enclose an untiled area. Whenever this is in
- danger of happening, we just do not add the tile, hoping
- for a better random choice the next time. Second, when
- choosing a vertex randomly, we will take one that lies
- withing the viewport if available. If this seems to cause
- enclosures in the forced rule case, we will allow invisi-
- ble vertices to be chosen.
-
- Tiling is restarted whenever one of the following happens:
- there are no incomplete vertices within the viewport or
- the tiling has extended a window's length beyond the edge
- of the window horizontally or vertically or forced rule
- choice has failed 100 times due to areas about to become
- enclosed.
-
-
-O\bOP\bPT\bTI\bIO\bON\bNS\bS
- _\bp_\be_\bn_\br_\bo_\bs_\be accepts the following options:
-
- -\b-w\bwi\bin\bnd\bdo\bow\bw Draw on a newly-created window. This is the
- default.
-
- -\b-r\bro\boo\bot\bt Draw on the root window.
-
- -\b-m\bmo\bon\bno\bo If on a color display, pretend we're on a
- monochrome display.
-
- -\b-i\bin\bns\bst\bta\bal\bll\bl
- Install a private colormap for the window.
-
-
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-X Version 11 10-May-97 1
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-XScreenSaver(1) XScreenSaver(1)
-
-
- -\b-v\bvi\bis\bsu\bua\bal\bl _\bv_\bi_\bs_\bu_\ba_\bl
- Specify which visual to use. Legal values are the
- name of a visual class, or the id number (decimal
- or hex) of a specific visual.
-
- -\b-n\bnc\bco\bol\blo\bor\brs\bs _\bi_\bn_\bt_\be_\bg_\be_\br
- How many colors should be used (if possible).
- Default 64. The colors are chosen randomly.
-
- -\b-s\bsi\biz\bze\be _\bi_\bn_\bt_\be_\bg_\be_\br
- How big the tiles should be. Default 40 pixels.
-
-
- -\b-a\bam\bmm\bma\ban\bnn\bn _\bi_\bn_\bt_\be_\bg_\be_\br
-
- -\b-n\bno\bo-\b-a\bam\bmm\bma\ban\bnn\bn _\bi_\bn_\bt_\be_\bg_\be_\br
- Whether Ammann lines should be added.
-
-
-E\bEN\bNV\bVI\bIR\bRO\bON\bNM\bME\bEN\bNT\bT
- D\bDI\bIS\bSP\bPL\bLA\bAY\bY to get the default host and display number.
-
- X\bXE\bEN\bNV\bVI\bIR\bRO\bON\bNM\bME\bEN\bNT\bT
- to get the name of a resource file that overrides
- the global resources stored in the RESOURCE_MAN-
- AGER property.
-
-S\bSE\bEE\bE A\bAL\bLS\bSO\bO
- X\bX(1), x\bxs\bsc\bcr\bre\bee\ben\bns\bsa\bav\bve\ber\br(1), x\bxl\blo\boc\bck\bk(1)
-
-C\bCO\bOP\bPY\bYR\bRI\bIG\bGH\bHT\bT
- Copyright (C) 1996 by Timo Korvola.
-
- Permission to use, copy, modify, and distribute this soft-
- ware and its documentation for any purpose and without fee
- is hereby granted, provided that the above copyright
- notice appear in all copies and that both that copyright
- notice and this permission notice appear in supporting
- documentation.
-
-A\bAU\bUT\bTH\bHO\bOR\bR
- Timo Korvola <tkorvola@dopey.hut.fi>, 1996.
-
- Ability to run standalone or with _\bx_\bs_\bc_\br_\be_\be_\bn_\bs_\ba_\bv_\be_\br added by
- Jamie Zawinski <jwz@netscape.com>, 10-May-97.
-
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-X Version 11 10-May-97 2
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projects / xscreensaver / blobdiff