Problems with DXF output

[Olly Betts]

On Tue, Jul 31, 2007 at 06:32:34AM -0700, Erin Lynch wrote:
> If I output DXF using "Export as" in Aven, the N, E, and altitude coordinates 
> are munged and their values seem to be relative to an arbitrary (0,0,0) point.
> So a point which has these coordinates in aven: 786543.42, 3273184.28, 1078.41
> Has these coordinates in the DXF:                            268.26,     -1529.49,   188.91
> 
> Looking at the top of the DXF file, I see that the minimum N, E, and altitude 
> coordinates are all negative:

The bug is that aven is using the internal coordinates when exporting,
and these are adjusted to centre the data around (0,0,0).  This is done
to avoid rounding issues during OpenGL coordinate transformations.

It's not hard to fix - should be sorted out in the next release
(probably in a couple of weeks).

Cheers,
    Olly