Thursday, 09 July 2015
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It would be really handy if 'Label by Connecting Line' had an option to select plants by polygon, and then automatically generated the connecting line.
There are a number of ways this could be implemented. A shortest path algorithm seems like the place to start, with maybe the option to choose first and last plant.
The problem with a shortest path algorithm is that it ends up either with the lines intersecting each other, or looking like a chaotic mess.
See particularly the example here: http://stackoverflow.com/questions/14263284/create-non-intersecting-polygon-passing-through-all-given-points

Instead of throwing such a huge investment into what is essentially an advanced AI sub-routine, we instead plan on adding an auto-snap capability, as we have when drawing pipe -- that will save having to click on each plant.

--J
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