4 XScreenSaver(1) XScreenSaver(1)
8 grav - draws a simple orbital simulation
10 S
\bSY
\bYN
\bNO
\bOP
\bPS
\bSI
\bIS
\bS
11 g
\bgr
\bra
\bav
\bv [-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]
12 [-background _
\bc_
\bo_
\bl_
\bo_
\br] [-window] [-root] [-mono] [-install]
13 [-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]
14 [-count _
\bi_
\bn_
\bt_
\be_
\bg_
\be_
\br] [-decay] [-no-decay] [-trail] [-no-trail]
17 D
\bDE
\bES
\bSC
\bCR
\bRI
\bIP
\bPT
\bTI
\bIO
\bON
\bN
18 The _
\bg_
\br_
\ba_
\bv program draws a simple orbital simulation
20 O
\bOP
\bPT
\bTI
\bIO
\bON
\bNS
\bS
21 _
\bg_
\br_
\ba_
\bv accepts the following options:
23 -
\b-w
\bwi
\bin
\bnd
\bdo
\bow
\bw Draw on a newly-created window. This is the
26 -
\b-r
\bro
\boo
\bot
\bt Draw on the root window.
28 -
\b-m
\bmo
\bon
\bno
\bo If on a color display, pretend we're on a
31 -
\b-i
\bin
\bns
\bst
\bta
\bal
\bll
\bl
32 Install a private colormap for the window.
34 -
\b-v
\bvi
\bis
\bsu
\bua
\bal
\bl _
\bv_
\bi_
\bs_
\bu_
\ba_
\bl
35 Specify which visual to use. Legal values are the
36 name of a visual class, or the id number (decimal
37 or hex) of a specific visual.
39 -
\b-n
\bnc
\bco
\bol
\blo
\bor
\brs
\bs _
\bi_
\bn_
\bt_
\be_
\bg_
\be_
\br
40 How many colors should be used (if possible).
41 Default 200. The colors are chosen randomly.
43 -
\b-c
\bco
\bou
\bun
\bnt
\bt _
\bi_
\bn_
\bt_
\be_
\bg_
\be_
\br
46 -
\b-d
\bde
\bec
\bca
\bay
\by
48 -
\b-n
\bno
\bo-
\b-e
\bec
\bca
\bay
\by
49 Whether orbits should decay.
52 -
\b-t
\btr
\bra
\bai
\bil
\bl
54 -
\b-n
\bno
\bo-
\b-t
\btr
\bra
\bai
\bil
\bl
55 Whether the objects should leave trails behind
56 them (makes it look vaguely like a cloud-chamber.
59 E
\bEN
\bNV
\bVI
\bIR
\bRO
\bON
\bNM
\bME
\bEN
\bNT
\bT
60 D
\bDI
\bIS
\bSP
\bPL
\bLA
\bAY
\bY to get the default host and display number.
64 X Version 11 10-May-97 1
70 XScreenSaver(1) XScreenSaver(1)
73 X
\bXE
\bEN
\bNV
\bVI
\bIR
\bRO
\bON
\bNM
\bME
\bEN
\bNT
\bT
74 to get the name of a resource file that overrides
75 the global resources stored in the RESOURCE_MAN-
78 S
\bSE
\bEE
\bE A
\bAL
\bLS
\bSO
\bO
79 X
\bX(1), x
\bxs
\bsc
\bcr
\bre
\bee
\ben
\bns
\bsa
\bav
\bve
\ber
\br(1), x
\bxl
\blo
\boc
\bck
\bk(1)
81 C
\bCO
\bOP
\bPY
\bYR
\bRI
\bIG
\bGH
\bHT
\bT
82 Copyright (C) 1993 by Greg Bowering.
84 Permission to use, copy, modify, and distribute this soft-
85 ware and its documentation for any purpose and without fee
86 is hereby granted, provided that the above copyright
87 notice appear in all copies and that both that copyright
88 notice and this permission notice appear in supporting
91 A
\bAU
\bUT
\bTH
\bHO
\bOR
\bR
92 Greg Bowering <greg@smug.student.adelaide.edu.au>, 1993.
94 Ability to run standalone or with _
\bx_
\bs_
\bc_
\br_
\be_
\be_
\bn_
\bs_
\ba_
\bv_
\be_
\br added by
95 Jamie Zawinski <jwz@netscape.com>, 10-May-97.
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