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<p>I don't know but am guessing, but aren't those lines not just *any* circular arcs, but the actual great-circle paths (the shortest line between two points on the surface of a globe) plotted onto that map projection? Some of them towards the edges aren't
circular.<br>
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<div class="moz-cite-prefix">On 26/09/2018 21:34, C Hamilton wrote:<br>
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<div>I had a user request Circular Lines in the Shape Tools plugin and they gave the following example.</div>
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<div><a href="https://www.stayaspensnowmass.com/sites/default/files/aspenFlightMap.jpg" moz-do-not-send="true">https://www.stayaspensnowmass.com/sites/default/files/aspenFlightMap.jpg</a></div>
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<div>I don't know how one would do this type of drawing. Does anyone have any ideas? It draws the lines trying to avoid overlapping other lines in a very pleasing manner. Doing this is probably outside the scope of the Shape Tools plugin, but I just wanted
to ask to see if there is a relatively easy algorithmic way of drawing these types of lines between two points.</div>
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<div>Thanks,</div>
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<div>Calvin<br>
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