planetfederal / wps-gui

Graphical User Interface (Model Builder) for OGC:WPS (Web Processing Services)
http://boundlessgeo.com
Apache License 2.0
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symdifference process #67

Closed sbalasub closed 10 years ago

sbalasub commented 10 years ago

per definition symdifference should return "a geometry representing the points contained in either one of the geometries but not in both". In the result, I get zoomed in versions of the two polygons I input. Don't think that is the right output.

bartvde commented 10 years ago

do you have some screenshots for this one? update: okay I see what you mean now, but I'm not sure what this process is to do actually.

bartvde commented 10 years ago

@dwins do you have any ideas of what symDifference does and if what it's doing now is wrong or not?

screen shot 2014-09-18 at 20 32 53 screen shot 2014-09-18 at 20 32 49

dwins commented 10 years ago

The outlines should look the same, symDifference is the union of the geometries with the intersection removed. Like this

I used two colors when drawing that example but while writing this up I realized the output will probably just be a single multipolygon.

bartvde commented 10 years ago

okay let me put a semi-transparent fill on the polygons that will probably help ;-) thanks for the pointer @dwins

bartvde commented 10 years ago

screen shot 2014-09-19 at 11 44 40