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Read from WMTS based on bounding box.

  • 20 March 2024
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nielsgerrits
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What I try to do is to download a raster from a WMTS to use it as a background image for a report. I do not want to download the entire service, only a part to use as background. The result I get is only working on very zoomed out tile matrices, like 04, where the resolution is not useful:

 

On deeper levels the FeatureReader is downloading a lot of tiles, which takes a very long time.

The WMTS I use is a Dutch one, in epsg:28992. I wonder if I am doing something wrong, or this is never developed / tested for this coordinate system?

The point is on 147513.92, 523126.09.

The WMTS is https://service.pdok.nl/hwh/luchtfotorgb/wmts/v1_0?

The Layer is Actueel_orthoHR

Attached the 2023 workspace.

 

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Best answer by becchr 20 March 2024, 16:41

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becchr
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hi @nielsgerrits not sure if this completely is what you want, but if I add a boundsextractor after your bufferer, I can use these bbox in the ‘Tile Selection Options’:

 

Setting the resolution to 13 for example, it only gets the tile you’re interested in:

 

geomancer
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@becchr just beat me to the answer 😀

It looks like the spatial filter you set is completely ignored when reading WMTS.

 

nielsgerrits
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Userlevel 6
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hi @nielsgerrits not sure if this completely is what you want, but if I add a boundsextractor after your bufferer, I can use these bbox in the ‘Tile Selection Options’:

 

Setting the resolution to 13 for example, it only gets the tile you’re interested in:

 

Thanks Christophe, should have looked harder. I assumed the bounding box stuff was handeled by the default setting in the FeatureReader and did not look further. :-/

nielsgerrits
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Userlevel 6
Badge +34

@becchr just beat me to the answer 😀

It looks like the spatial filter you set is completely ignored when reading WMTS.

 

This is exactly the case. Thanks for looking into it!

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