[gdal-dev] Feature styles units in dxf export

[Jürgen E. Fischer]

Hi Marco,

On Fri, 21. Dec 2012 at 09:16:13 +0100, Marco Hugentobler wrote:
> Setting a style string in mm (e.g.  'PEN(c:#0000ff,w:5mm'), the dxf  
> driver converts the 5 mm to 0.005 ground units, then multiplies that by  
> 100 (most likely because in dxf, one width unit is 1/100 mm). This seems  
> strange to me, shouldn't the driver treat mm as paper units (instead as  
> ground units) and just multiply the mm by 100?

Didn't look at any code - but the units in DXF are configurable.  So the driver
should do that only if it knowns the current units.  It might assume running
with the DXF header shipped with GDAL (assuming there is one) and you are using
another one?


Jürgen

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