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Add adjustable arrow barb location #24

Closed johntyree closed 10 years ago

johntyree commented 10 years ago

We are dancing right on the edge of "noticeably slower." We have to be careful about the barb is actually drawn. This way seemed to perform the best and look the least ridiculous.

kjordahl commented 10 years ago

Minor styling issue: with barbs in the center, the front of the vector looks noticeably darker where the line is redrawn. We might have to rethink this anyway.

:+1: for merging first.

johntyree commented 10 years ago

Yeah you kind of have a trade off since it apparently can't overlap the lines without making look bold.

However, the profiler complains pretty loudly if I draw the barbs separately from the shafts because we're suddenly doubling the number of polyline objects.