I am trying to create a boundary from contour data to define three different areas. I split the areas using test filter and tried AreaBuilder. It created polygons for closed lines. But It doesn't create outline boundary.
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Creating Outline Boundary from Contour Data
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Best answer by nathanatsafe
The HullAccumulator transformer should be able to achieve this. I find starting with a blank Alpha value is useful because FME will try to pick the best one for you automatically (Alpha dictates how geometry connectivity is calculated). However, in this case, it produces some artifacts. An Alpha of 1000 might be more useful, but it does depend on the desired result.
+7- Safer
- Best Answer
The HullAccumulator transformer should be able to achieve this. I find starting with a blank Alpha value is useful because FME will try to pick the best one for you automatically (Alpha dictates how geometry connectivity is calculated). However, in this case, it produces some artifacts. An Alpha of 1000 might be more useful, but it does depend on the desired result.
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