Polyline 3D relative to ground with expression

TfenDbg — Sat, 21 Sep 2024 16:47:16 GMT

Hello,

I want to elevated a pipeline from the ground with differentes heigth. Like house Pipes ... !

My polylines have Z values.

I call them with geoserver wfs service

wMain3D = new WFSLayer({ url: "http://127.0.0.1:8081/geoserver/wfs", name: "r:wMain3D", elevationInfo: { mode: "relative-to-ground", featureExpressionInfo: { expression: "Geometry($feature).paths[0][0].z" // }, unit: "meters" }, });

Response from the network seem good

{ "type": "Feature", "id": "wMain3D.13", "geometry": { "type": "MultiLineString", "coordinates": [ [ [ 35000.5836, 304238.1743, 0.5 ], [ 35001.225, 304239.1565, 0.5 ] ] ] }, "geometry_name": "the_geom",

But pipe stay at the ground 😞

I think my expression is not good here :

"Geometry($feature).paths[0][0].z"

Maybe i need to iterate the linestring, but this method (elevationInfo) accept this kind of things?

I try this one :

When i want to see z value with label, nothing appears

wMain3D.labelingInfo = [{ labelExpressionInfo: { expression: "Geometry($feature).paths[0][0].z" }, symbol: { type: "text", color: "red", haloColor: "white", haloSize: "1px", font: { size: "12px", weight: "bold" } } }];

If anyone have solution

Thanks

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Polyline 3D relative to ground with expression