How to cut one polygon from another in spatial data using the FME Clipper transformer

Описание: Here's how to use the FME Clipper transformer to cut one polygon (subtract its area) from another. In this demo we'll use a set of polygon features representing parks and a set of polygon features representing buildings. The aim is to calculate the area of the parks, excluding the building area. We'll use the FME Clipper transformer to cut the building footprints from the park features and the AreaCalculator transformer to calculate the area of the remaining parts of the parks.
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