lineSize? (aka border size)
On Jun 6, 2013, at 5:39 PM, David Epstein wrote: > In order to properly adjust the relative area of two dissimilar polygons, I > thought I would use a function to determine the fraction of each polygon's > rectangle that is covered by the polygon. > > function coverage obLID > set the filled of obLID to true > put the rect of obLID into r > repeat with x = (item 1 of r) to (item 3 of r) > repeat with y = (item 2 of r) to (item 4 of r) > put x,y into pt > if within(obLID,pt) then add 1 to isIn > add 1 to all > end repeat > end repeat > return isIn/all > end coverage > > This seems to work as expected, but I am perplexed by the fact that when I > resize an object keeping its proportions constant (drag a corner with the > shift key down; or script this) I get a surprising variation in the result. > E.g., a fairly simple shape I tried went from 0.48 coverage up to 0.59 > coverage when I shrank its dimensions by about two-thirds. With tens or > hundreds of thousands of pixels being sampled in the calculation, I would not > expect this variation. > > Many thanks for any insights or suggestions. > > David Epstein > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
