Jukka,

please try r5188.. ede

On 15.11.2016 10:31, edgar.sol...@web.de wrote:
> from http://geojson.org/geojson-spec.html
> "
> A GeoJSON object with the type "Feature" is a feature object.
> 
> A feature object must have a member with the name "geometry". The value of 
> the geometry member is a geometry object as defined above or a JSON null 
> value.
> 
> A feature object must have a member with the name "properties". The value of 
> the properties member is an object (any JSON object or a JSON null value).
> "
> 
> so that means 
>    "properties": null
> which validates on http://geojsonlint.com/
> 
> will fix it, did you came across a parser that did not like OJ generated 
> GeoJSON because of that?
> 
> ..ede
> On 15.11.2016 09:57, Rahkonen Jukka (MML) wrote:
>> Hi,
>>
>> In GeoJSON FeatureCollection must have "properties" member even if there are 
>> no attributes. This output from OpenJUMP r5186 does not validate
>>
>> {
>> "type": "FeatureCollection",
>>
>> "features": [
>> { "type": "Feature", "geometry": 
>> {"type":"Polygon","coordinates":[[[278,423],[483,505],[478,293],[278,423]]],"crs":{"type":"name","properties":{"name":"EPSG:0"}}}
>>  }
>> ]
>>
>> }
>>
>> I am not sure if this is the right fix but at least it validates:
>> { "type": "Feature", "properties": { }, "geometry": 
>>
>> It seems that GeoJSONLint http://geojsonlint.com/ does not like the crs 
>> member any more because it belongs to older, year 2008 version of GeoJSON.  
>> However, I think that OpenJUMP should still output the old version that 
>> supports projections. I try to find some more flexible validator.
>>
>> -Jukka Rahkonen-
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> 
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