Hi,
I don't know about Kosmo or OpenJump, but OGR supports export of
blocks. You would have to specify a separate template drawing containing
the block definitions.
Your input data would have to contain a column named "blockname", and
optionally columns "blockscale" and "blockangle".
blockname is a string corresponding to the block definitions in the
separate dxf template containing the block definitions, blockscale is in
syntax "(1,1,1)" for scaling in all three dimensions - "(1,1,1)"
actually does not scale as you would assume. block angle is in degrees I
think - I don't know which direction (clock-wise or anticlockwise and
starting point).
I successfully use OGR to convert a Postgis View to DXF on the command
line. This is for a waste-water network where we use blocks to symbolize
different manhole types. Here is the command I use:
ogr2ogr -f DXF test_ogr.dxf -dsco
header=header_export_werkplan_abwasser.dxf -spat 695700 245900 696000
246100 PG:"dbname='dbname' host='hostname' port='5432' user='www'
password='xxx' schemas=abwasser
tables=abwasser.export_dxf_geo405(the_geom)"
Hope this helps,
Andreas
On Wed, 17 Aug 2011 05:58:07 -0700 (PDT), rawcofe wrote:
Hello,
I'm wondering is it possible to use ogr dxf driver for exporting
features as
blocks in DXF format from Kosmo which is built on OpenJUMP framework?
I have
read (http://www.gdal.org/ogr/drv_dxf.html) that ogr dxf driver
supports
reading and writing of DXF blocks. Is the DXF driver completely
functional
considering block export and can be used with OpenJUMP as is or it
requires
a considerable amount of development effort to implement? Where can I
download this driver and does it have some licensing issues if I try
to
integrate it with Kosmo?
Thank you for your help,
rawcofe
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Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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