[Therion] XTherion: Line simplification

Martin Sluka martinsluka at mac.com
Wed Apr 6 16:05:26 CEST 2016


Super!

"Convert to curve" works only if there are not smooth points. The conversion will stop on such point. If you remove the smoothness it will continue.

Martin

On Apr 06, 2016, at 02:56 PM, Владимир Георгиев <vld.georgiev at gmail.com> wrote:

In most cases it does, but if the points in a line are too many it still leaves more points than I would like. And some remaining points are still very close together because the line segment had some micro-curves that the Bezier lines tries to preserve.
In other cases "Conver to curve" doesn't work and does nothing, but I haven't checked the code to see why.

Sometimes I just need a simple "rougher" line without curves so I added this option.

Vladimir

On Wed, Apr 6, 2016 at 3:39 PM, Martin Sluka <martinsluka at mac.com> wrote:
And "Convert to curve" doesn’t works for you?

m.s.

6. 4. 2016 v 13:45, Владимир Георгиев <vld.georgiev at gmail.com>:

Hi guys

There was one option I was missing in XTherion to reduce the number of points in a line.
I work mostly with Topodroid and depending on the settings while drawing, in some cases I end up with lines with hundreds of points. This makes them harder to edit, enlarges the TH2 file and slows the compilation.

I added a menu Edit line > Simplify line that reduces the points. There is also a setting in xtherion.ini called "xth(gui,me,line,simp_limit)" that controls how smooth/rough the line becomes. A value of 10 seemed to work well for me.
One limitation is that Bezier lines become simple lines.

I've attached a few screenshots, the patch file, and the xtherion.tcl file.
Would be nice is someone can test how it works with their scraps.

Vladimir
<xtherion.rar><0001-xtherion-Added-line-simplification-menu-in-Edit-line.patch><2016-04-06 14_31_40.png><2016-04-06 14_20_41.png><2016-04-06 14_21_13.png><2016-04-06 14_22_09.png><2016-04-06 14_23_15.png><2016-04-06 14_31_09.png>_______________________________________________
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