I'm trying to plot pressure contours on a non-rectangular shape (this is connected to Matplotlib contourf input array shapes error and Create points grid on irregular (non-rectangular) planar surface). I managed to create a rectangular meshgrid, filter out the rectangular meshgrid points that in some distance away don't have any actual points and then interpolate the actual values to the remaining meshgrid points. I would now like to create a contour plot for these filtered out points. If I understand correctly, this could not be done with .contourf function. I have tried, but the filtered out points with their values are not structured in a correct way to do that. I found this option (Matplotlib set_clip_path requires patch to be plotted), for which I need to define the outline of the actual or filtered mesh data. Which I have no earthly idea how to do. I tried the code bellow and got the error: alpha = 0.95 * alphashape.optimizealpha(points_filt_coord_pairs) File "C:\Python310\lib\site-packages\alphashape\optimizealpha.py", line 100, in optimizealpha if _testalpha(points, test_alpha): File "C:\Python310\lib\site-packages\alphashape\optimizealpha.py", line 41, in _testalpha return all([polygon.intersects(point) for point in points]) TypeError: 'MultiPoint' object is not iterable. for a,b in zip(xx_filtered, yy_filtered): points_filt_coord_pairs.append((a, b)) alpha = 0.95 * alphashape.optimizealpha(points_filt_coord_pairs) hull = alphashape.alphashape(points, alpha) hull_pts = hull.exterior.coords.xy Continue reading...
