| 1 | .TH XScreenSaver 1 "9-oct-2002" "X Version 11" |
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| 2 | .SH NAME |
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| 3 | halftone - simple halftone pattern of moving mass points |
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| 4 | .SH SYNOPSIS |
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| 5 | .B halftone |
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| 6 | [\-display \fIhost:display.screen\fP] |
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| 7 | [\-visual \fIvisual\fP] |
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| 8 | [\-window] |
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| 9 | [\-root] |
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| 10 | [\-count \fInumber\fP] |
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| 11 | [\-spacing \fInumber\fP] |
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| 12 | [\-sizefactor \fInumber\fP] |
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| 13 | [\-delay \fInumber\fP] |
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| 14 | [\-minmass \fInumber\fP] |
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| 15 | [\-maxmass \fInumber\fP] |
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| 16 | [\-minspeed \fInumber\fP] |
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| 17 | [\-maxspeed \fInumber\fP] |
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| 18 | .SH DESCRIPTION |
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| 19 | Draws the gravity force in each point on the screen seen through a |
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| 20 | halftone dot pattern. The gravity force is calculated from a set of |
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| 21 | moving mass points. View it from a distance for best effect. |
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| 22 | .SH OPTIONS |
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| 23 | .TP 8 |
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| 24 | .B \-visual \fIvisual\fP |
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| 25 | Specify which visual to use. Legal values are the name of a visual class, |
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| 26 | or the id number (decimal or hex) of a specific visual. |
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| 27 | .TP 8 |
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| 28 | .B \-window |
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| 29 | Draw on a newly-created window. This is the default. |
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| 30 | .TP 8 |
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| 31 | .B \-root |
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| 32 | Draw on the root window. |
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| 33 | .TP 8 |
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| 34 | .B \-count \fInumber\fP |
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| 35 | How many mass points to move around. Default: 10 |
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| 36 | .TP 8 |
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| 37 | .B \-spacing \fInumber\fP |
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| 38 | Distance between each halftone dot. Default: 14 |
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| 39 | .TP 8 |
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| 40 | .B \-sizefactor \fInumber\fP |
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| 41 | How big each halftone dot should be drawn compared to the spacing value. Default: 1.5 |
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| 42 | .TP 8 |
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| 43 | .B \-minmass \fInumber\fP |
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| 44 | The minimum mass of each mass point. Default: 0.001 |
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| 45 | .TP 8 |
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| 46 | .B \-maxmass \fInumber\fP |
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| 47 | The maximum mass of each mass point. Default: 0.02 |
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| 48 | .TP 8 |
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| 49 | .B \-minspeed \fInumber\fP |
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| 50 | The minimum speed of each mass point. Default: 0.001 |
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| 51 | .TP 8 |
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| 52 | .B \-maxspeed \fInumber\fP |
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| 53 | The maximum speed of each mass point. Default: 0.02 |
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| 54 | .B \-delay \fInumber\fP |
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| 55 | Per-frame delay, in microseconds. Default: 10000 |
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| 56 | .SH ENVIRONMENT |
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| 57 | .PP |
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| 58 | .TP 8 |
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| 59 | .B DISPLAY |
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| 60 | to get the default host and display number. |
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| 61 | .TP 8 |
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| 62 | .B XENVIRONMENT |
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| 63 | to get the name of a resource file that overrides the global resources |
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| 64 | stored in the RESOURCE_MANAGER property. |
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| 65 | .SH SEE ALSO |
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| 66 | .BR X (1), |
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| 67 | .BR xscreensaver (1) |
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| 68 | .SH COPYRIGHT |
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| 69 | Copyright \(co 2002 by Peter Jaric. Permission to use, copy, modify, |
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| 70 | distribute, and sell this software and its documentation for any |
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| 71 | purpose is hereby granted without fee, provided that the above |
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| 72 | copyright notice appear in all copies and that both that copyright |
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| 73 | notice and this permission notice appear in supporting documentation. |
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| 74 | No representations are made about the suitability of this software for |
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| 75 | any purpose. It is provided "as is" without express or implied |
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| 76 | warranty. |
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| 77 | .SH AUTHOR |
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| 78 | Peter Jaric |
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| 79 | |
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