From: <pl...@pi...> - 2007-06-03 19:22:59
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On Sun, 03 Jun 2007 19:59:13 +0200, Hans-Bernhard Bröker <HBB...@t-...> wrote: > An arrow has 4 independent coordinates, each of which can meaningfully > be placed sing a different coordinate system. OK that makes more sense than your initial reply. I had not thought of the need for using different coordinate systems for each end of an arrow but I suppose it's more flexible. Fair point, but four independant coords that cannot be specified independantly it seems. First or second but not mixed. Since each point carries a qualifier this could equally be x1y2 or first or second... etc. This would add extra flexability since currently is does not seem possible to mix coordinates like you can with "axes". I'm not sure what case would call for mixed coordinates, and it's probably not worth searching for specific examples. Having said there's a need for mixed coords for the two points, why not go the whole hog and allow x1y2 as well? The current implementation is less flexible in this respect. This is not a major issue I want to do to death, just a suggestion I'll throw into the list in case anyone thinks it could be useful. regards. |