Generalises geometry using a variation of the Douglas-Peucker algorithm that is limited by number of output points.
{ "Operation": "Item.GeneraliseDPN", "PropertyMap": { "_nPoints@": "1" } }
Note:
Properties shown in RED are mandatory.
Number of points
The number of output points, as a simple value, or as an expression, eg '10' or 'Int(_np&/10)'
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