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How to load multiple cells in HydrographicS57Layer

Sindre_PaulsrudMoe

Hello,

We are working on a maritime application in WPF using the ArcGIS Runtime SDK for .NET. In the documentation it says it should be possible to load one or more cells in the HydrographicS57Layer, however, I can only see a Path property referring to a single cell. I imagine if we load many cells at once and one layer must be created for each cell there will be a performance penalty?

I noticed in the older SDK for WPF there is a Cells collection property on the layer. Has this changed in the SDK for .NET?

Any advise will be appreciated.

Thank you,

Sindre

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Accepted answers

DominiqueBroux

You are right that a change in .Net API: you need to create one layer by cell.

There is no performance penalty since behind the scene in WPF a group layer with one sublayer by cell was created as well.

You'll try to fix the documentation in a next version.

All comments

InnesMacKenzie

You're on the right track - any attributes should be exposed in the feature object's Attributes list. Hit testing is per-layer, so if you want to search a bunch of layers you need to do each one in turn (but obviously since it's an async hit test method you can kick them all off at the same time).

Sindre_PaulsrudMoe

Thanks! As a follow-up question:

We want to be able to extract additional information about a feature at a particular coordinate within the cell. For example to be able to click on a buoy or get depth/sounding information at a particular point. Can this be achieved? I have already managed to extract some information using the HitTestAsync method on the layer to get the S57FeatureObject collection at a point but it does not seem to include all information. Am I on the right track or is there some other way to get the data as well? When we have a lot of layers do we need to loop through them all and do hit testing on each?

I have compared it to a different application (ENC-X) where it is possible to also retrieve textual information in the cell, such as T&P's and caution areas.

Some best-practices and guidance on the above would be great.

Thanks!

DominiqueBroux

You are right that a change in .Net API: you need to create one layer by cell.

There is no performance penalty since behind the scene in WPF a group layer with one sublayer by cell was created as well.

You'll try to fix the documentation in a next version.

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