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select all labels inside a (non-rectangular) shape through hierarchy

caver456

Is there a way to select all labels inside a non-rectangular shape?  It looks like all of the 'overlaps' functions only use a rectangular area (bbox) as the selection window.  Also, is there a way to do this through the hiearchy, i.e. specifying a start and stop level?

  • Andrew Beckett

    You could use dbGetOverlaps or dbShapeQuery to find everything (down the hierarchy) in the bounding box of the polygonal shape, and then (transforming the coordinates to the top level), determine whether the bBox of each label (or the xy (origin) if you don't want to use the bBox) is within the polygonal area. You could make that determination using dbPointArrayAnd to do a logical and of the polygon and the rectangle (if a bBox) and see if you get a result - then they overlap. Or you could use something like abPointInPolygon to check whether a point is within a polygon area.

    Something like that...

    Regards,

    Andrew.

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