Explore/Import from Neuroglancer URI

[fm3]

It would be nice if you could just paste the URI of a dataset viewed in neuroglancer into wk and have it searched for explorable dataset layers.

[frcroth]

We need to determine what we want to read: Here is an example Neuroglancer URI JSON:

{"dimensions":{"x":[4e-9,"m"],"y":[4e-9,"m"],"z":[3e-8,"m"]},"position":[100074.5,100000.5,4998.23583984375],"crossSectionScale":1,"projectionScale":262144,"layers":[{"type":"image","source":"precomputed://s3://bossdb-open-data/morgan2020/lgn/em","tab":"rendering","opacity":0.46,"blend":"additive","shaderControls":{"normalized":{"range":[78,255]}},"crossSectionRenderScale":0.12019062105556629,"name":"em"}],"selectedLayer":{"visible":true,"layer":"em"},"layout":"4panel","selection":{"layers":{"em":{"annotationId":"data-bounds","annotationSource":0,"annotationSubsource":"bounds"}}}}

We could read:

• Dimensions (they may be inferred from the dataset)
• position
• layers with name, type and source uri
• opacity of layers
• shaderControls/normalized which could map to the value range
• blendmode of layers -> as I understand this can be only set for the whole dataset in WK?

These are partly DatasetViewConfig and partly LayerViewConfig. Possibly not everything can be done by using the regular explore (since we only return layers there, not datasets)

There are also some additional properties, I don't understand all of them. What should be read within the scope of this issue?

[fm3]

I’d say layer name, type and source uri should be enough for the moment :) Thanks for looking into this!