GeoArrowPointCloudLayer does not accept geoarrow encoded 3d points from geoparquet

[pinireisman]

GeoArrowPointCloudLayer does not accept the geoarrow geometry column of 3d points while GeoArrowScatterPlotLayer handles same column well.

I am getting the error:
deck: initialization of GeoArrowPointCloudLayer({id: 'pointcloud-xyz'}): Points of a PointCloudLayer in the geometry column must be three-dimensional. Error: Points of a PointCloudLayer in the geometry column must be three-dimensional.

this is coming from an assert that checks:
assert( geometryColumn.type.listSize === 3, "Points of a PointCloudLayer in the geometry column must be three-dimensional.", ); (from point-cloud-layer.ts line 142)

Here is how I got this

I have created a GeoParquet file with the following:
import geopandas as gpd
geometry = gpd.points_from_xy(x=df['X'], y=df['Y'], z=df['Z'])
gdf = gpd.GeoDataFrame(df[['point_id']], geometry=geometry, crs="EPSG:4326")
gdf.to_parquet('my_parquet', geometry_encoding='geoarrow')

I then read it into my frontend such:
const response = await fetch(url_to_my_parquet);
const buffer = await response.arrayBuffer();
const pointCloudData = await readParquet(new Uint8Array(buffer), { batchSize: Math.pow(2, 31) });
const table = arrow.tableFromIPC(pointCloudData.intoIPCStream());
const geometryColumn = table.getChild("geometry");
let gps_ref = [40, 40, 0];
...
layer = new GeoArrowPointCloudLayer({
id: "pointcloud-xyz",
data: table,
getPosition: geometryColumn,
getColor: fillColorAccessor,
pointSize: 2,
coordinateSystem: COORDINATE_SYSTEM.METER_OFFSETS,
coordinateOrigin: gps_ref,
});

I have verified that when reading the geometryColumn I get 3 columns named 'x','y','z'
(using the code: console.log('Geometry column fields:', geometryColumn.type.children.map(f => f.name)))

and when I try to use a GeoArrowScatterPlotLayer with the same data it works:

layer = new GeoArrowScatterplotLayer({
id: "scatterplot",
data: table,
getPosition: geometryColumn,
getFillColor: [255,0,0,180],
radiusMinPixels: 1,
getRadius: 0.05,
coordinateSystem: COORDINATE_SYSTEM.METER_OFFSETS,
coordinateOrigin: gps_ref,
});

[kylebarron]

What version of deck.gl-layers are you using? This should be fixed in #139.

You might want to put a console.log before and after here

deck.gl-layers/src/layers/point-cloud-layer.ts

Lines 162 to 164 in 343eacf

	if (isGeomSeparate(geometryData)) {
	geometryData = convertStructToFixedSizeList(geometryData);
	}

to see if this function is getting called

deck.gl-layers/src/utils/utils.ts

Line 111 in 343eacf

export function convertStructToFixedSizeList(

....

oh actually looks like the default validation still assumes the input is a fixed size list geometry

deck.gl-layers/src/layers/point-cloud-layer.ts

Lines 137 to 147 in 343eacf

	if (this.props._validate) {
	assert(
	ga.vector.isPointVector(geometryColumn),
	"The geometry column is not a valid PointVector.",
	);
	assert(
	geometryColumn.type.listSize === 3,
	"Points of a PointCloudLayer in the geometry column must be three-dimensional.",
	);
	validateAccessors(this.props, table);
	}

You can try with setting validate: false as a prop