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And the number of anchors came down somewhat. Zooming in (in Gimp, not here!) one sees that the fit is not perfect but anyhow very good. The result was much better (on the right). So I made a selection covering those anchors (in the middle picture) and called the plugin again and choosing "Preserve the part inside the selection, simplify the rest" (and of course "Preserve straight edges" set to Yes). Examining those gaps suggested that certain anchors should be preserved. The result (not shown here) was good except that even after setting the "Allowed deviation" to a lower value there were clear gaps between the original and simplified paths. I first tried to simplify it by setting only "Preserve straight edges" to Yes. This is useful when you want to protect some particular anchors from the process of simplification. Next the last choice, "Preserve the part inside the selection, simplify the rest". I have even seen a case where there was a tiny concave arc! But the result from the plugin is smooth and nicely arching. At the belly the path had several small straight line segments forming angles.
Namely, Gimp's Selection to path seems to have difficulties here. The result is on the right: the part inside the selection was simplified in this case it happens to mean that those anchors disappeared altogether.Īlso, the result is smoother. Then I called the plugin otherwise with default inputs but choosing "Simplify the part inside the selection, preserve the rest". I made a new selection covering those anchors (middle picture). On the left you see the resulting path with its anchors: I made an elliptic selection and then Selection to path.
#Topaz simplify gimp full
The plugin is full of my own ad hoc solutions to various problems. The plugin is based on a neat mathematical idea (I think), but unfortunately, when one starts to implement a neat idea, it usually happens that soon one is in the middle of a mess. It enables the user to restrict the effect to some subset of the anchors. Of the inputs the last one (about selection) may be the most important in practice. I hope the meanings of the inputs are clear enough. On the right you see the anchors of the simplified path. With default input values the plugin did the following: Below, on the left you see the original path (blue) and the simplified version (red) on top of each other. It may be difficult to see from that picture but there are small differences: many small bends were smoothed out. An example: On the left you see a path and on the right its anchors: The plugin takes a path and tries to diminish the number of anchors, doing some smoothing but hopefully not too much. To use the plugin: in the Paths tab, right-click the path you want to simplify and follow the links Tools > Modify path > Simplify. Unzip it and place the one file it contains (simplify_path.py) in your user's plug-ins folder.
#Topaz simplify gimp download
Scroll to the bottom, and click the download button.
Anyway, this is the first published version, and we can think the plugin to be still just experimental, so there is room for improvements. The problem is hard, and all I can say is that mostly the plugin works all right though sometimes its decisions seem strange. If Gimp already has a tool for that job, I hope somebody tells me.
#Topaz simplify gimp pro
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