[pstricks] Slender structures. Dimension too large.

[Herbert Voss]

Christer Gustafsson wrote:

> The particular pipeline that I now deal with has a typical width of 0.05 
> m and a length of 5000m. It is a complicated structure built from tubes, 
> plastic profiles and electric cables. A preprocessor generates strength 
> of materials information (dimensions, entire geometry, ...) automatically.
> 
> Graphics is produced by means of PSTricks in normally a wonderful manner 
> by a batch system. It produce a large number of graphs, which generally 
> are zooms of various sections of the line. The batch environment is 
> effective.
> 
> However, the latest line has an extreme slenderness and the PSTricks 
> system now gives me the error 'Dimension too large'.
> 
> I have included a simplification below in order to make my point clear. 
> If you remove the two comments, then the error appears.
> 
> Could the error have been avoided in some other way than by means of 
> hand-editing?

this cannot work with TeX's limitation of floating point arithmetic.
\psset{xunit=160.000cm,yunit=160.000cm}

Autogenerated \psline[xunit=1cm](   0.000,   0.002)(   20.000,   0.002)

means a line with a x-length of 32m

you can try to use inch instead of cm. Or
Autogenerated \psline[xunit=1cm](   0.000,   0.002)(   20.000,   0.002)

Herbert


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