File:Moment of inertia disc.png
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Moment_of_inertia_disc.png (164 × 84 pixels, file size: 2 KB, MIME type: image/png)
This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.
Summary
| DescriptionMoment of inertia disc.png | MetaPost image of a disc, with dimensions and axes specified. Embedded in a TeX document, viewed with gv, rasterized via screenshot, saved as PNG with The Gimp, and compressed with optipng. |
| Date | Unknown date |
| Source | en.wikipedia.org |
| Author | Grendelkhan |
| Permission (Reusing this file) |
Grendelkhan |
File:Moment of inertia solid cylinder.svg is a vector version of this file. It should be used in place of this PNG file when not inferior.
File:Moment of inertia disc.png → File:Moment of inertia solid cylinder.svg
For more information, see Help:SVG.
|
MetaPost source of the image follows.
u=18mm;
textscale=u/12mm;
% this MetaPost script generates a PostScript file, which is then included in a
% TeX document. if you want to generate EPS from this, you'll have to uncomment
% the following line. (and probably do a couple more things, to boot.)
%prologues := 1;
def disc =
begingroup;
save pmax,persp,persp_nt,tens,arr;
save rarrlft,rarrrt;
save p;
save axisprotrusion;
save xax,yax,zax;
pmax = 0;
persp_nt = 0.3;
tens = 2-persp_nt;
persp = persp_nt*u;
arr = 0.3u; % how far to offset the arrows from the diagram
axisprotrusion = 1u; % how far do the axes protrude?
pair rarrlft,rarrrt; % endpoints for arrows
path p[]; % just plain paths for now
pair xax[],yax[],zax[]; % x,y,z are taken; these are for the axes
% solid paths
p0 = fullcircle scaled u xscaled 2 yscaled 2persp_nt;
% endpoints of dimension arrows
rarrlft = (0,0);
rarrrt = (1u,0);
% actually draw
pickup pencircle scaled 1pt;
for i=0 upto pmax:
draw p[i];
endfor;
drawdblarrow (rarrlft..rarrrt);
label.top(btex $r$ etex scaled textscale,.5[rarrlft,rarrrt]);
% x axis
xax1 = (1u,0);
xax2 = (1u+axisprotrusion*0.5,0);
drawarrow (xax1..xax2);
label.rt(btex $x$ etex scaled textscale,xax2);
% y axis
yax0 = (0,0);
yax1 = point 5 of p0;
yax2 = (.6+axisprotrusion/u)[yax0,yax1];
drawarrow (yax1..yax2);
draw yax0..yax1 dashed evenly;
label.ulft(btex $y$ etex scaled textscale,yax2);
% z axis
zax0 = (0,0);
zax1 = (0,axisprotrusion);
drawarrow (zax0..zax1);
label.top(btex $z$ etex scaled textscale,zax1);
endgroup;
enddef;
beginfig(1) disc; endfig;
(Note that this source code doesn't fill the circle, and draws the x and y axes the wrong way round. The code provided with the SVG version of this image corrects these problems.)
Licensing
| This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers. | ||
| ||
| This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
| Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. Subject to disclaimers.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:20, 28 October 2007 | 164 × 84 (2 KB) | wikimediacommons>Prince Max |
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