Hi, I am trying to generate plots for communities detected by another algorithm (outside graph-tool). The communities are overlapping and I wanted to display something like nodes with multiple colors (like we have for SBMs). For this I set a new vertex property and assign nodal memberships to it. I assign a matrix which contains one hot vectors for each node's community membership. So the matrix has shape n x g where n is the number of nodes and g is the number of communities. When I use graph_draw like: graph_draw(g, vertex_shape="pie", vertex_pie_fractions=pv, edge_gradient=None, output="lesmis-sbm-marginals.svg") where pv is the property map, I get: python3: ../../../../src/cairo-arc.c:189: _cairo_arc_in_direction: Assertion `angle_max >= angle_min' failed. I want to show overlapping clusters with graph-tool, but the clustering hasn't been performed by graph-tool. Any ideas as to how to go about this? Thanks! -- Sent from: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/