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Reading from WMS image - How to maintain a consistent height and width of image with varying bounding boxes without stretching the image..

  • October 3, 2023
  • 1 reply
  • 52 views

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I have a workspace that inputs property polygons and bounding boxes from an oracle database and it feeds into a WMS feature reader to obtain a raster image. It then overlays property boundary as a redline on top of the image. How do I maintain constant height and width of the image without stretching it?

 

The WMS I am reading from does not have scale hint, nor does it have scale denominator in its implementation.

1 reply

daveatsafe
Safer
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  • Safer
  • October 6, 2023

Hi @generationn00b​,

I created a custom transform to replace a feature's geometry with a bounding box that has a fixed aspect ratio: https://hub.safe.com/publishers/safe-lab/transformers/fixedaspectratioboundingboxreplacer. Send your polygons through this transformer with the desired image size set in the Horizontal and Vertical Components values, then use the resulting bounding boxes in the WMS feature reader.