[NAME]
hyp2mat \- convert hyperlynx files to octave/matlab scripts for electromagnetic simulation.

/scripts./
.SH OPTIONS

/Print board summary/

Hyperlynx input files conventionally end in 
.BR .hyp
\&.

.I hyp2mat 
reads input from file
.IB infile . 
If no input file is specified input is read from standard in.

If no output file is specified output is to standard out.

If a syntax error occurs during conversion, error recovery is attempted.
.I hyp2mat 
exits with zero status if conversion was succesful and non-zero if not.

The 
.BR --verbose 
option can be used to list board dimensions. 

If only a small region of the board needs to be simulated the 
.BR --xmin
.BR --xmax
.BR --ymin 
.BR --ymax 
.BR --zmin 
and
.BR --zmax 
options can be used to crop the board to a smaller region. 

If not all layers of the board need to be simulated, the 
.BR --layers 
option may be used to specify layers of interest.

If not all nets of the board need to be simulated, the 
.BR --nets 
option may be used to specify nets of interest.
The option 
.BR --net=? 
lists all available nets.

Circles and arcs are approximated by polygons. By default a circle is approximated by an octagon. If higher accuracy is needed, set 
.BR --arc-precision
to the desired precision. This will increase the number of line segments used to draw circular, oval and oblong pads, amongst others.

To simulate a lossy dielectric, copy AddHyperLynxDielectric.m to your project directory and customize.

The 
.BR --flood
option floods layers with copper.
The flooded copper respects trace-to-plane clearances.
Copper net name is identical to layer name. 

Typical use of 
.I hyp2mat 
is with simulation packages such as OpenEMS.

[EXAMPLES]
Convert pcb.hyp to pdf:
.nf
hyp2mat -o pcb.pdf pcb.hyp
.ni

Examine original Hyperlynx file:
.nf 
hyp2mat -o pcb.pdf --raw pcb.hyp
.ni 

Draw arcs with an accuracy of 10 mil or better:
.nf 
hyp2mat -o pcb.pdf --arc-precision 0.000254 pcb.hyp
.ni 

[NOTES]
Board outlines and copper polygons should not be self-intersecting.

Common causes of syntax errors are unquoted strings, and unassigned component values.

.SS Unquoted strings
.IP "Error:"
.I syntax error, unexpected STRING at 'Logo'

.IP "Source:"
.nf
(? REF=My Logo BOT1 L=Bottom_Layer)
.fi

.IP Cause:
An unquoted string contains a space (' '). 

.IP Solution:
Edit the .hyp file and put the string between double quotes:
.nf
(? REF="My Logo BOT1" L=Bottom_Layer)
.fi

.SS Unassigned component values
.IP "Error:"
.I syntax error, unexpected L, expecting FLOAT or STRING at 'L'

.IP "Source:" 
.nf
(R REF="R1" VAL= L="Top")
.fi

.IP Cause:
Component has not been assigned a value (VAL=). 

.IP Solution:
Edit the .hyp file and assign a value to resistor R1:
.nf
(R REF="R1" VAL=0 L="Top")
.fi
or assign the resistor a value in the schematics editor and re-export to HyperLynx.

[FILES]
.B /usr/share/hyp2mat/matlab/
.br
.ns
Supporting matlab routines for OpenEMS.

.B /usr/share/hyp2mat/eagle/
.br
.ns
Examples and tutorial.

[AUTHOR]
.nf
Koen De Vleeschauwer, http://www.kdvelectronics.eu
.ni

[SEE ALSO]
.IR octave (1)
.br
.IR "OpenEMS" ,
a free and open-source electromagnetic field solver using the FDTD method.