tessellimage man page on DragonFly
[printable version]
tessellimage(6) XScreenSaver manual tessellimage(6)
NAME
tessellimage - Converts an image to triangles using Delaunay tessella‐
tion.
SYNOPSIS
tessellimage [-display host:display.screen] [-visual visual] [-window]
[-root] [-delay number] [-duration number] [-duration2 number] [-max-
depth number] [-no-outline] [-no-fill-screen] [-fps]
DESCRIPTION
Converts an image to triangles using Delaunay tessellation, and ani‐
mates the result at various depths. More triangles are allocated to
visually complex parts of the image. This is accomplished by first com‐
puting the first derivative of the image: the distance between each
pixel and its neighbors. Then the Delaunay control points are chosen by
selecting those pixels whose distance value is above a certain thresh‐
old: those are the pixels that have the largest change in color/bright‐
ness.
OPTIONS
-visual visual
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.
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-delay number
Per-frame delay, in microseconds. Default: 30000 (0.03 sec‐
onds).
-duration number
Length of time until loading a new image. Default: 2 minutes.
-duration2 number
Length of time until increasing or decreasing the triangulation
depth. Default: 0.4 seconds.
-max-depth number
The maximum number of triangles to render. Default: 40000.
-outline | -no-outline
Whether to outline the triangles.
-fill-screen | -no-fill-screen
Whether to zoom in on the image to completely fill the screen,
or to center it.
-fps | -no-fps
Whether to show a frames-per-second display at the bottom of
the screen.
ENVIRONMENT
DISPLAY to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.
SEE ALSO
X(1), xscreensaver(1)
COPYRIGHT
Copyright © 2014 by Jamie Zawinski. Permission to use, copy, modify,
distribute, and sell this software and its documentation for any pur‐
pose 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 repre‐
sentations are made about the suitability of this software for any pur‐
pose. It is provided "as is" without express or implied warranty.
AUTHOR
Jamie Zawinski.
X Version 11 5.34 (24-Oct-2015) tessellimage(6)
[top]
List of man pages available for DragonFly
Copyright (c) for man pages and the logo by the respective OS vendor.
For those who want to learn more, the polarhome community provides shell access and support.
[legal]
[privacy]
[GNU]
[policy]
[cookies]
[netiquette]
[sponsors]
[FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
|
Vote for polarhome
|