X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fattraction.man;h=fabdc8a3b2e1ef7b9be165c2e9b5738e5bddd2a9;hb=f65151994eba80ecabcdac6eef6fa0dde7e2d45b;hp=daa69391a8b3c3f3502ed2c652a9882260054dc9;hpb=0a1527cc01e9894017614b7c36b838b2b6914ba9;p=xscreensaver diff --git a/hacks/attraction.man b/hacks/attraction.man index daa69391..fabdc8a3 100644 --- a/hacks/attraction.man +++ b/hacks/attraction.man @@ -1,9 +1,22 @@ -.TH XScreenSaver 1 "22-mar-93" "X Version 11" +.de EX \"Begin example +.ne 5 +.if n .sp 1 +.if t .sp .5 +.nf +.in +.5i +.. +.de EE +.fi +.in -.5i +.if n .sp 1 +.if t .sp .5 +.. +.TH XScreenSaver 1 "14-Jun-97" "X Version 11" .SH NAME attraction - interactions of opposing forces .SH SYNOPSIS .B attraction -[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-points \fIint\fP] [\-threshold \fIint\fP] [\-mode balls | lines | polygons | splines | filled-splines | tails ] [\-color-mode cycle | random] [\-size \fIint\fP] [\-segments \fIint\fP] [\-delay \fIusecs\fP] [\-color-shift \fIdegrees\fP] [\-radius \fIint\fP] [\-vx \fIint\fP] [\-vy \fIint\fP] [\-glow] [\-noglow] [\-orbit] +[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install] [\-visual \fIvisual\fP] [\-points \fIint\fP] [\-threshold \fIint\fP] [\-mode balls | lines | polygons | splines | filled-splines | tails ] [\-size \fIint\fP] [\-segments \fIint\fP] [\-delay \fIusecs\fP] [\-color-shift \fIint\fP] [\-radius \fIint\fP] [\-vx \fIint\fP] [\-vy \fIint\fP] [\-glow] [\-noglow] [\-orbit] [\-viscosity \fIfloat\fP] [\-mouse] [\-no-mouse] [\-mouse-size] .SH DESCRIPTION The \fIattraction\fP program has several visually different modes of operation, all of which are based on the interactions of a set of control @@ -23,6 +36,13 @@ Draw on the root window. .B \-mono If on a color display, pretend we're on a monochrome display. .TP 8 +.B \-install +Install a private colormap for the window. +.TP 8 +.B \-visual \fIvisual\fP +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. +.TP 8 .B \-points integer How many control points should be used, or 0 to select the number randomly. Default 0. Between 3 and 15 works best. @@ -51,9 +71,6 @@ In \fItails\fP mode, the path which each particle follows is indicated by a worm-like trail, whose length is controlled by the \fIsegments\fP parameter. .TP 8 -.B \-color-mode cycle | random -Whether colors should cycle through the spectrum, or be picked randomly. -.TP 8 .B \-size integer The size of the balls in pixels, or 0, meaning to select the sizes randomly (the default.) If this is specified, then all balls will be @@ -70,10 +87,11 @@ is only useful in color.) How much of a delay should be introduced between steps of the animation. Default 10000, or about 0.01 seconds. .TP 8 -.B \-color-shift degrees +.B \-color-shift int If on a color display, the color of the line segments or polygons will -cycle through the spectrum. This specifies how far the hue of each segment -should be from the next, in degrees on the HSV wheel. Default 3. +cycle through the color map. This specifies how many lines will be drawn +before a new color is chosen. (When a small number of colors are available, +increasing this value will yield smoother transitions.) Default 3. This has no effect in \fIballs\fP mode. .TP 8 .B \-radius @@ -107,7 +125,33 @@ to decay. .B \-vmult float In orbit mode, the initial velocity of the balls is multiplied by this; a number less than 1 will make the balls pull closer together, and a larger -number will make them move apart. The default is 1, meaning stability. +number will make them move apart. The default is 0.9, meaning a slight +inward pull. +.TP 8 +.B \-viscosity float +This sets the viscosity of the hypothetical fluid through which the control +points move; the default is 1, meaning no resistance. Values higher than 1 +aren't interesting; lower values cause less motion. + +One interesting thing to try is +.EX +attraction -viscosity 0.8 -points 75 \\ + -mouse -geometry =500x500 +.EE +Give it a few seconds to settle down into a stable clump, and then move +the mouse through it to make "waves". +.TP 8 +.B \-mouse +This will cause the mouse to be considered a control point; it will not be +drawn, but it will influence the other points, so you can wave the mouse +and influence the images being created. +.TP 8 +.B \-no-mouse +Turns off \fB\-mouse\fP. +.TP 8 +.B \-mouse-size integer +In \fB\-mouse\fP mode, this sets the mass of the mouse (analagously to the +\fB\-size\fP parameter.) .SH ENVIRONMENT .PP .TP 8 @@ -121,12 +165,14 @@ stored in the RESOURCE_MANAGER property. .BR X (1), .BR xscreensaver (1) .SH COPYRIGHT -Copyright \(co 1992, 1993 by Jamie Zawinski. Permission to use, copy, modify, -distribute, and sell this software and its documentation for any purpose is -hereby granted without fee, provided that the above copyright notice appear -in all copies and that both that copyright notice and this permission notice -appear in supporting documentation. No representations are made about the -suitability of this software for any purpose. It is provided "as is" without -express or implied warranty. +Copyright \(co 1992, 1993, 1997 by Jamie Zawinski. Permission to use, copy, +modify, distribute, and sell this software and its documentation for any +purpose is hereby granted without fee, provided that the above copyright +notice appear in all copies and that both that copyright notice and this +permission notice appear in supporting documentation. No representations are +made about the suitability of this software for any purpose. It is provided +"as is" without express or implied warranty. .SH AUTHOR -Jamie Zawinski , 13-aug-92. +Jamie Zawinski , 13-aug-92. + +Viscosity and mouse support by Philip Edward Cutone, III.