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greg |
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.\" RCSid "$Id" |
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.TH MGF2META 1 11/20/95 RADIANCE |
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.SH NAME |
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mgf2meta - convert Materials and Geometry Format file to Metafile graphics |
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.SH SYNOPSIS |
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.B mgf2meta |
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[ |
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.B "-t threshold" |
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] |
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.B "{x|y|z} xmin xmax ymin ymax zmin zmax" |
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[ |
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.B input .. |
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] |
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.SH DESCRIPTION |
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.I Mgf2meta |
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converts one or more Materials and Geometry Format (MGF) |
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files to a 2-D orthographic projection along the selected axis in the |
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.I metafile(1) |
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graphics format. |
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All geometry is clipped to the specified bounding box, and the |
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resulting orientation is as follows: |
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.sp .5 |
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.nf |
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Projection Orientation |
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========== =========== |
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x Y-axis right, Z-axis up |
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y Z-axis right, X-axis up |
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z X-axis right, Y-axis up |
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.fi |
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.PP |
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If multiple input files are given, the first file prints in black, |
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the second prints in red, the third in green and the fourth in blue. |
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If more than four input files are given, they cycle through the |
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colors again in three other line types: dashed, dotted and |
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dot-dashed. |
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.PP |
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The |
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.I \-t |
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option may be used to randomly throw out line segments that are |
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shorter than the given |
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.I threshold |
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(given as a fraction of the plot width). |
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Segments are included with a |
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probability equal to the square of the line length over the square |
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of the threshold. |
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This can greatly reduce the number of lines in the drawing (and |
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therefore improve the drawing speed) with only a modest loss in |
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quality. |
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A typical value for this parameter is 0.005. |
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.PP |
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All MGF material information is ignored on the input. |
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.SH EXAMPLE |
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To project two MGF files along the Z-axis and display them under |
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X11: |
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.IP "" .2i |
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mgf2meta z 0 10 0 15 0 9 building1.mgf building2.mgf | x11meta -r |
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.PP |
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To convert a RADIANCE scene to a line drawing in RADIANCE picture |
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format: |
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.IP "" .2i |
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rad2mgf scene.rad | mgf2meta x `getbbox -h scene.rad` | meta2tga | |
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ra_t8 -r > scene.pic |
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.SH AUTHOR |
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Greg Ward |
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.SH "SEE ALSO" |
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getbbox(1), meta2tga(1), metafile(5), mgf2rad(1), pflip(1), |
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protate(1), psmeta(1), ra_t8(1), rad2mgf(1), t4014(1), x11meta(1) |
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.PP |
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MGF web site "http://radsite.lbl.gov/mgf/HOME.html" |
