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Topic: Line Simplification (Read 1194 times)
tudi_x
Hero Member
Posts: 532
Line Simplification
«
on:
May 21, 2019, 01:59:59 pm »
hi,
i need to write some line simplification code (ex.
https://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm
).
i was wondering how line simplification is achieved in TAChart.
i am interested in how from N point to leave only n points with least degradation of the theoretical curve.
thank you
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Lazarus 2.0.2 64b on Debian LXDE 10
wp
Hero Member
Posts: 11923
Re: Line Simplification
«
Reply #1 on:
May 21, 2019, 02:42:46 pm »
This algorithm is not available within TAChart. Of course you can use TAChart to plot the initial and final curves, but the algorithms has to be written by yourself.
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avra
Hero Member
Posts: 2514
Re: Line Simplification
«
Reply #2 on:
May 22, 2019, 04:03:43 pm »
https://web.archive.org/web/20120622080422/https://www.simdesign.nl/douglaspeucker.html
https://github.com/WouterVanNifterick/delphi-maps/blob/master/source/DelphiMaps.DouglasPeuckers.pas
«
Last Edit: May 23, 2019, 09:37:01 pm by avra
»
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ct2laz
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