[gdal-dev] Re: DXF writing and layers

[Andreas Neumann]

Hi again,

I am wondering if most of my issues are a result of wrong parameters in my
ogr2ogr command:

Here is my command:

ogr2ogr -select '' -f DXF test_ogr.dxf -dsco
header=header_export_werkplan_abwasser.dxf -spat 695700 245900 696000
246100 PG:"dbname='uster' host='servername' port='5432' user='read'
password='reader' schemas=abwasser
tables=abwasser.export_dxf_geo405(the_geom)"

So maybe the -select '' causers ogr to not read the attribute values and
thus it cannot see layer, blockname, etc.?

That's probably the case.

If I use
ogr2ogr -f DXF test_ogr.dxf -dsco
header=header_export_werkplan_abwasser.dxf -spat 695700 245900 696000
246100 PG:"dbname='uster' host='servername' port='5432' user='read'
password='reader' schemas=abwasser
tables=abwasser.export_dxf_geo405(the_geom)"

note - without the -select '' I receive error messages:

ERROR 1: DXF layer does not support arbitrary field creation, field
'blockscale' not created.
ERROR 1: DXF layer does not support arbitrary field creation, field
'blockangle' not created.
ERROR 1: DXF layer does not support arbitrary field creation, field
'layer_geo405' not created.
ERROR 1: DXF layer does not support arbitrary field creation, field
'ogr_style' not created.
ERROR 1: DXF layer does not support arbitrary field creation, field 'gid'
not created.
ERROR 1: DXF layer does not support arbitrary field creation, field
'blockname' not created.

I still get an output dxf - but as soon as I open it in autocad, Autocad
crashes with a fatal error. FME can't read the resulting file either.

Andreas


On Wed, November 3, 2010 11:53 pm, Frank Warmerdam wrote:
> On Mon, Nov 1, 2010 at 6:52 AM, Andreas Neumann <a.neumann at carto.net>
> wrote:
>> While testing the writer I wanted to use the new feature of specifying a
>> column in the source dataset that contains the layer name a feature
>> should
>> end up in the destination dxf file.
>>
>> My source is a Postgis table, and the layer name is stored in a column
>> called "layer".
>>
>> I don't know the correct dataset creation option (dsco) or layer
>> creation
>> option (lco) to specify the column containing the layernames.
>>
>> I tried:
>>
>> -dsco LayerName=layer
>> -dsco layer=layer
>> -lco LayerName=layer
>> -lco layer=layer
>>
>> But no matter which of the above options I try, all my features end up
>> in
>> layer "0".
>>
>> If anyone has a hint how I could issue the ogr2ogr command so I can
>> specify the layer a feature should end up in, it would be much
>> appreciated!
>
> Andreas,
>
> Currently the dxf writer only looks for the attribute named Layer
> to identify the layer name.  It sounds like in your case it should
> work directly since the Postgres column name is also "layer".
>
> If it is not, please file a ticket and I'll dig into it.  Providing
> an input dataset to demonstrate the problem would be
> helpful.
>
> 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
>


-- 
Andreas Neumann
http://www.carto.net/neumann/
http://www.svgopen.org/