.TH IRIT2Hgl - IRIT To HPGL filter
 6 "IRIT Version 7.0" 
.SH NAME
IRIT2Hgl - IRIT To HPGL filter



Converts IRIT geometry into the HL Graphics Language used by HP's plotters.

.SH Command line options



  irit2hgl [-t XTrans YTrans] [-I #UIso[:#VIso[:#WIso]]]
       [-f PolyOpti SampTol] [-F PolyOpti FineNess] [-M] [-G] [-T]
       [-a AnimTime] [-i] [-o OutName] [-z] DFiles

-t XTrans YTrans: X and Y translation. of the image. Default is (0, 0).
-I #UIso[:#VIso]: Specifies the number of isolines per surface, per
direction. If #VIso is not specified, #UIso is used for #VIso as
well.
-f PolyOpti SampTol: Controls the method used to approximate curves
into polylines. If PolyOpti == 0, equally spaced intervals are
used. For PolyOpti == 1, an adaptive subdivision that optimizes the
samples is employed.  For PolyOpti == 2, SampTol (real number)
specifies the maximal allowed deviation tolerance of the piecewise
linear approximation from the original curve.
Default is 0 64 (uniform sampling with 64 samples).
-F PolygonOpti FineNess: Optimality of polygonal approximation of
surfaces. See the variable POLY_APPROX_OPT for the meaning of
FineNess. See also -4. This enforces the dump of freefrom geometry
as polygons.
-M: Dumps the control mesh/polygon as well.
-G: Dumps the freeform geometry.
-T: Talkative mode. Prints processing information.
-a AnimTime: If the data contains animation curves, evaluate and
process the scene at time AnimTime.
-i: Internal edges (created by IRIT) - default is not to
display them, and this option will force displaying them as well.
-o OutName: Name of output file. By default the name of the first data
file from DFiles list is used.  See below on the output files.
-z: Prints version number and current defaults.

.SH Usage



Irit2Hgl converts freeform surfaces and polygons into polylines in a format
that can be used by HPGL.

Example:

 irit2Hgl -M -f 0 16 saddle.dat > saddle.hgl

However, one can overwrite the viewing matrix by appending a new matrix
in the end of the command line, created by the display devices:

 x11drvs b58.dat
 irit2Hgl -M -f 0 16 b58.dat irit.mat > saddle.hgl

where irit.mat is the viewing matrix created by x11drvs.