08-23-2021, 04:30 PM
That will suffíce about the general-purpose plugins for now. I talk now about the plugins which draw some special curve.
I updated the plugin file special_curves.py. It is now version 1.7. To get it, go to
http://kmarkku.arkku.net/Parametric_curv...aster.html
scroll to the bottom and download. That gives you a .zip file. Unzip it and put the file special_curves.py in you Gimp's user's plug-ins folder and restart Gimp. You will find at
Filters > Render > Parametric curves > Special curves > ...
five plugins:
Fourier3 with control of symmetry
Fourier3
Lissajous
Rhodonea
Spiropath
The two Fourier plugins are new; of them I shall talk later. In this post I talk about the old three. And I am not doing any talking. I just show pictures to remind what the they can do. (And these are just some random examples that I happened to make.) To get a particular curve, I have no advice about how to find proper inputs. One just has to experiment.
Lissajous
The input parameters I used are shown in the picture.
Rhodonea (the rose curve)
Spiropath
These were made with the following inputs:
1: 30, 11, 0.9
2: 30, 11, 0.5
3: 30, 26, 1 fixed circle not drawn
4: 11, 2, 0.5 epitrochoid
5: 11, 5, 0.7 epitrochoid
6: 30, 26, 1 hypotrochoid
7: 3, 1, 0.9
8: 6, 11, 1 hypotrochoid
9: 11, 5, 1 fixed circle not drawn
10: 6, 5, 0.5
I updated the plugin file special_curves.py. It is now version 1.7. To get it, go to
http://kmarkku.arkku.net/Parametric_curv...aster.html
scroll to the bottom and download. That gives you a .zip file. Unzip it and put the file special_curves.py in you Gimp's user's plug-ins folder and restart Gimp. You will find at
Filters > Render > Parametric curves > Special curves > ...
five plugins:
Fourier3 with control of symmetry
Fourier3
Lissajous
Rhodonea
Spiropath
The two Fourier plugins are new; of them I shall talk later. In this post I talk about the old three. And I am not doing any talking. I just show pictures to remind what the they can do. (And these are just some random examples that I happened to make.) To get a particular curve, I have no advice about how to find proper inputs. One just has to experiment.
Lissajous
The input parameters I used are shown in the picture.
Rhodonea (the rose curve)
Spiropath
These were made with the following inputs:
1: 30, 11, 0.9
2: 30, 11, 0.5
3: 30, 26, 1 fixed circle not drawn
4: 11, 2, 0.5 epitrochoid
5: 11, 5, 0.7 epitrochoid
6: 30, 26, 1 hypotrochoid
7: 3, 1, 0.9
8: 6, 11, 1 hypotrochoid
9: 11, 5, 1 fixed circle not drawn
10: 6, 5, 0.5