I looking to calculate the intersected area between polygons
I used the Areaonareaoverlay transformer but I am getting one of the feature removed and replaced by another one,
Solved
Area on Area overlay not working as expected
+11- Contributor
- 212 replies
Best answer by takashi
Each resulting area from the AreaOnAreaOverlayer preserves attributes from one of overlapped original areas, may not always preserve attributes from the original area that matches the resulting area. For example, the right-most area in the result has attributes from one of four source areas, may not have attributes from the original right-most area.
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- 7843 replies
- Best Answer
Each resulting area from the AreaOnAreaOverlayer preserves attributes from one of overlapped original areas, may not always preserve attributes from the original area that matches the resulting area. For example, the right-most area in the result has attributes from one of four source areas, may not have attributes from the original right-most area.
+11- Contributor
- 212 replies
any suggestion how could calculate the overlapping area and preserve the original attributes?
- 7843 replies
any suggestion how could calculate the overlapping area and preserve the original attributes?
How do you define "original" area from which you need to preserve attributes if the resulting area has been generated from two or more overlapping areas? For example, the second right area has been generated from three overlapping areas. Which one of three is the "original" area?
+11- Contributor
- 212 replies
@takashi
Any sugestiion on how we could claculate the overlaping area and keep the same attibutes
+11- Contributor
- 212 replies
@takashi
@takashihow about to calculate the area by subtracting the previous one ( overlaparea=arae of layerid 1509 - area of layer id 1510..etc ) the problem is how we apply that
- 7843 replies
@takashi
Any sugestiion on how we could claculate the overlaping area and keep the same attibutes
- 7843 replies
any suggestion how could calculate the overlapping area and preserve the original attributes?
+11- Contributor
- 212 replies
It's necessary to clarify the criteria regarding how to select an original polygon whose attributes should be preserved when the resulting area has been generated from two or more overlapping original polygons. For example, if you want to preserve attributes of the smallest one among overlapping original polygons, this workflow would be a possible way. Different criteria requires different solution.
I did follow the workspace suggested but I am getting a weird geometry I did
I use the Projected coordinate in order to have an accurate area calculation
Alos attached the workspace, in this, we Know the layer ID 1509 has always the smallest area
Thanks in advance
areaonareaoverlay-ouput.png
areaon-area-overlay.fmwt
- 7843 replies
@takashi
I did follow the workspace suggested but I am getting a weird geometry I did
I use the Projected coordinate in order to have an accurate area calculation
Alos attached the workspace, in this, we Know the layer ID 1509 has always the smallest area
Thanks in advance
areaonareaoverlay-ouput.png
areaon-area-overlay.fmwt