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[Backport 2023.01.xx] #9165 Update User Guide - Height offset option on display tan for the 3D Tiles (#9177) #9238

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Jun 20, 2023
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[Backport 2023.01.xx] #9165 Update User Guide - Height offset option on display tan for the 3D Tiles (#9177) #9238

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update_9165
ElenaGallo May 17, 2023
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9165_review
ElenaGallo Jun 16, 2023
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14 changes: 12 additions & 2 deletions docs/user-guide/layer-settings.md
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Expand Up @@ -63,6 +63,9 @@ In particular, the user is allowed to:

* Set the size of layer tiles: choosing between `256` or `512`

!!!Warning
The *Format* and *Layer tile size* options are available only for the layers added from CSW and WMS catalog sources.

* Set the opacity value of the layer (in %)

* Enable/disable the **Visibility limits** to display the layer only within certain scale limits. The user is allowed to request the `MinScaleDenominator` and `MaxScaleDenominator` value present on the *WMS GetCapabilities* of the layer though the <img src="../img/button/sync_to_server.jpg" class="ms-docbutton"/> button or set the *Max value* and the *Min value* and select the *Limits type* choosing between `Scale` or `Resolution`.
Expand All @@ -81,11 +84,18 @@ In particular, the user is allowed to:

* A preview of the legend is shown with the applied custom values from Legend fields above.

!!!Warning
The *Format* and *Layer tile size* options are available only for the layers added from CSW and WMS catalog sources.
!!!note
Cached tiles works with WMS only with standard gridsets (exponential). When MapStore uses custom scales, the tile cache can not be used. This because WMS TileGrid for OpenLayers (internal MapStore mapping library) and the TileGrid generated by GeoServer have different origins (top-left vs bottom-left). While for exponential resolutions the top left remains fixed (because there is only an integer number of tiles in the interval between top-left and bottom-left corner of the bbox, 1, 2, 4, 8 ....) with custom resolutions the number of tiles is not integer, so the coordinate of the tile of top-left may vary across scales. More details about this limitation in this [issue](https:/geosolutions-it/MapStore2/issues/9025) on GitHub.

!!!Warning
On the *Display* tab, only the following options are available for a **3D Tile** layer:

* The **Visibility limits** to display the layer only within certain scale limits, as reported above.

* The **Height Offset** above the ground.

<img src="../img/layer-settings/display-3d-tiles.jpg" class="ms-docimage" style="max-width:450px;"/>

## Style

The third section, dedicated to the layer style, displays like the following:
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