Dear Arturo, Thanks for reporting this! It is indeed a bug. I have created an issue for it: https://github.com/nest/nest-simulator/issues/1946 Further updates can be found there. Best wishes, Stine ________________________________ Fra: Arturo del Cerro Vergara <arturo.delcerro(a)e-campus.uab.cat> Sendt: torsdag 25. februar 2021 10:18 Til: users(a)nest-simulator.org <users(a)nest-simulator.org> Emne: [NEST Users] Error when plotting masks with azimuthal angle Hello, my name is Arturo and I think I found a bug when calling PlotTargets using the mask plot option with an azimuthal angle > 0. Below I give an example very easy to follow that shows that although the targets are plotted correctly, the mask is not. Correct me if I am doing anything wrong please. I attach an image of the results also. Thank you, Arturo. Code: l = topo.CreateLayer({'rows': 21, 'columns': 21, 'elements': 'iaf_psc_alpha'}) conndict = {'connection_type': 'divergent', 'mask': {'rectangular': {'lower_left': [-0.3, -0.12], 'upper_right': [-0.05, 0.12], 'azimuth_angle': 45.}}, 'kernel': 1.0} topo.ConnectLayers(l, l, conndict) fig = topo.PlotLayer(l, nodesize=40) ctr = topo.FindCenterElement(l) topo.PlotTargets(ctr, l, fig=fig, mask=conndict['mask'], src_size=250, tgt_color='red', tgt_size=20) [Captura.PNG]