emplexed / gs-mvt Goto Github PK

The buffer Parameter ist still not working. The tile coordinate system is messed when requesting with a buffer (WMS parameter).

Does the plugin cache the vector tiles and if so, is it possible to seed the cache?

For certain requests gs-mvt fails because it receives an empty geometry. The tilerequest contains multiple geometries as you can see below: the redish areas are vector-tiled neighborhood-polygons, the white square is a failed tile

The Geoserver error as stated in the HTTP 500 error

tileerror.txt

There seems to be an issue with MinScaleDenominator.

<StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                       version="1.0.0" xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
  <NamedLayer>
    <UserStyle>
      <FeatureTypeStyle>
        <Rule>
          <MinScaleDenominator>100000000</MinScaleDenominator>
          <Filter>
            <PropertyIsEqualTo>
              <PropertyName>minzoom</PropertyName>
              <Literal>1</Literal>
            </PropertyIsEqualTo>
          </Filter>
          <PolygonSymbolizer>
            <Fill>
              <CssParameter name="fill">#0000FF</CssParameter>
            </Fill>
          </PolygonSymbolizer>
        </Rule>
        <Rule>
          <MaxScaleDenominator>100000000</MaxScaleDenominator>
          <Filter>
            <PropertyIsEqualTo>
              <PropertyName>minzoom</PropertyName>
              <Literal>2</Literal>
            </PropertyIsEqualTo>
          </Filter>
          <PolygonSymbolizer>
            <Fill>
              <CssParameter name="fill">#FF0000</CssParameter>
              <CssParameter name="fill-opacity">0.2</CssParameter>
            </Fill>
          </PolygonSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>

I would expect that at scale above 100000000 only features with minzoom=1 will be returned (which it does) and at scale below 100000000 only features with minzoom=2 would be returned, instead it returns both - minzoom=1 and minzoom=2 features.

Is it bug, or am i missing something. The same filter seems to work fine with wms raster, but not with mvt.

The readme mentions gs-mvt-2.6.2.jar. However, It cannot be found anywhere.

Hi,

thanks for this great plugin @stefan0722.
I have a short question: Is it possible to add the ".json" format to the Slippy Map Tiles feature?
That extension would help me a lot to use our geoserver in the same way like http://tile.openstreetmap.us/vectiles-buildings/{z}/{x}/{y}.json'.

Best regards
Benedikt

Hope it's ok to cross post from: https://gis.stackexchange.com/questions/256888/styling-geoserver-pbf-vector-tiles-in-leaflet
I believe the issue is related specifically to Geoserver/this extension

I'm serving up vector tiles in pbf format in Geoserver 2.11.2 (using the MVT extension) and consuming them in Leaflet 1.2.0 with Leaflet.VectorGrid 1.2.0 but am having trouble styling them.
The URL format I am using is:

http://xxxx/geoserver/gwc/service/tms/1.0.0/GIS:LSOA@EPSG%3A900913@pbf/{z}/{x}/{-y}.pbf

The vectors appear and render nicely but with a default blue line style. The docs state you should set the style for each layer within the vector tile set like so:

var vectorTileOptions = {
vectorTileLayerStyles: {
    // A plain set of L.Path options.
    water: {
        weight: 0,
        fillColor: '#9bc2c4',
        fillOpacity: 1,
        fill: true
    }
};

i.e in this example 'water' is the layer name.

I am unsure what my layer name is because whatever I have tried, the style remains the default blue.

In geoserver my layer title is "LSOA" and name is "GIS:LSOA" so I have tried the following without success:

LSOA: {
        weight: 0,
        fillColor: '#9bc2c4',
        fillOpacity: 1,
        fill: true
    }

JS Error with the colon

GIS:LSOA: {
        weight: 0,
        fillColor: '#9bc2c4',
        fillOpacity: 1,
        fill: true
    }

Nope:

pbfLayerOpts["pbfLayerStyles"]["GIS:LSOA"] = {
        weight: 0,
        fillColor: '#9bc2c4',
        fillOpacity: 1,
        fill: true
    }

All attempts result in the same default style.
I have also tried creating a layer group in Geoserver and adding one or multiple layers but no luck there. Also tried adding a layer group without a workspace (the GIS prefix) but in that case Geoserver returned an error to the pbf request.

If I use the Openmaptiles service then everything works as expected so it seems the issue is with Geoserver/the extension and how it names layers/serves the data.

Has anyone got this setup working before?

Thanks.

Hi,

We weren't able to use it with 2.7.2. Is there maybe an already compiled version for 2.7.2.

Br,
Bernd

A NullPointerException occurs if there is no filter for a layer in the SLD style.

Adding a dummy filter solves the problem. However, it would be better if the plugin can handle layers without a SLD filter.

java.lang.NullPointerException
at org.geotools.filter.visitor.SimplifyingFilterVisitor.collect(SimplifyingFilterVisitor.java:234)
at org.geotools.filter.visitor.SimplifyingFilterVisitor.visit(SimplifyingFilterVisitor.java:292)
at org.geotools.filter.OrImpl.accept(OrImpl.java:49)
at org.geotools.filter.visitor.SimplifyingFilterVisitor.collect(SimplifyingFilterVisitor.java:234)
at org.geotools.filter.visitor.SimplifyingFilterVisitor.visit(SimplifyingFilterVisitor.java:164)
at org.geotools.filter.AndImpl.accept(AndImpl.java:52)
at org.geotools.filter.visitor.SimplifyingFilterVisitor.simplify(SimplifyingFilterVisitor.java:524)
at org.geotools.filter.visitor.SimplifyingFilterVisitor.simplify(SimplifyingFilterVisitor.java:508)
at org.geotools.data.DataUtilities.mixQueries(DataUtilities.java:2502)
at org.geoserver.wms.mvt.StreamingMVTMap.encode(StreamingMVTMap.java:80)

I have been looking in the code and can’t figure if this extension support the wms viewparams?

It is not mentioned in the code so does it inherit from wms?

I have successfully used this feature with the community module for vector tiles as mvt but I really like the idea implemented here to control the generalization and small geometries.
I have a smaller problem with the community module where some features will disappear. It might be solved by setting the size of tile grid from 256x256 to a higher resolution, but still here it is possible to make a precise configuration.