[Gdal-dev] DGN format and projection support

[Jeff L.]

Hi Frank,

Thank you for your response. DGN can store projection according to this 
document: 
http://support.intergraph.com/TechNotes/MicroStation_Define_CSF.pdf

The paragraph of the document that mention the projection is:

"The design file has its projection/coordinate system and mapping working 
units stored in a format that can be easily read by Intergraph mapping 
software applications such as GeoMedia and MGE. The assigned projection 
information is stored in the header of the design file as a Microstation 
element type 56."

Any work around to produce DGN with coordinate system ?

Jeff



>From: Frank Warmerdam <warmerdam at pobox.com>
>To: "Jeff L." <nf10 at hotmail.com>
>CC: gdal-dev at lists.maptools.org
>Subject: Re: [Gdal-dev] DGN format and projection support
>Date: Tue, 18 Oct 2005 13:46:47 -0400
>
>On 10/18/05, Jeff L. <nf10 at hotmail.com> wrote:
> > Hi,
> >
> > I downloaded GDAL source code and tried out the DGN as an output format 
>but
> > it seems that the DGN ogr driver does not support coordinate system. Is 
>this
> > correct ? if yes, I'm wondering if there is any work around this to 
>generate
> > DGN with coordinate system ? (scenario: convert mapInfo files to dgn)
>
>Jeff,
>
>Your analysis is correct.  I don't know how Microstation stores
>coordinate system information in DGNs, and I suspect that in
>most geographic maps they don't even bother.
>
>Best regards,
>--
>---------------------------------------+--------------------------------------
>I set the clouds in motion - turn up   | Frank Warmerdam, 
>warmerdam at pobox.com
>light and sound - activate the windows | http://pobox.com/~warmerdam
>and watch the world go round - Rush    | Geospatial Programmer for Rent