Re: [sumo-user] Problem with converting shapefiles.

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

the shapefile importer assumes that input data is geo-referenced and can be converted to lon,lat (WGS84).

This geo reference appears to be missing in your case and this results in invalid projection information (UTM zone 38726)

This invalid projection ends up in the .net.xml file and thus netedit refuses to load it.

As a quick workaround you could change the value of

<location ... proj="+proj utm ..."/> to <location ...proj="!"/> in the .net.xml

regards,

Jakob

2018-09-26 19:12 GMT+02:00 <cchadj01@xxxxxxxxxxxx>:

Hello,
 I want to convert a shapefile to .net.xml using NETCONVERTER.
 My shapefile prefix is output-shapefile.
 You can see my dbf fields that are used in the image attached. As your site states at http://sumo.dlr.de/wiki/Networks/Import/ArcView
I have the minimal three fields required in order for the conversion to take place. I have attached an excel screenshot named minimal-problem-dbf.png

I used the shapefile in QGcis in order to check if the edges are connected and if the node ids are correct. I have attached two pngs showing two consecutive edges in order to check if they share a common node which is correct. (The images are qgis-first-selection.png and qgis-second-edge-selection.png)

After checking the correctness of my shapefile I used the command:
netconvert -v --shapefile-prefix output-shapefile -o net.net.xml --shapefile.from-id from_id --shapefile.to-id to_id --shapefile.street-id edge_id --shapefile.use-defaults-on-failure

The operation runs successfully but with a lot of warnings. The netconvert output is attached below as netconvert-output.png .

When I try to open the network with neteditor I get the error
`Error: Could not build projection!` and then it fails to build the network.

I can't see what the problem is. Any help would be appreciated.

Thank you,
Tom


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