openalea.phenomenal.segmentation.graph_from_voxel_grid¶
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openalea.phenomenal.segmentation.graph_from_voxel_grid(voxel_grid, connect_all_point=True)[source]¶ Return a weigthed networkx graph builded from a voxel_grid object where each node of the graph is the tuple position of the voxels center. Each node are edged, if present, to the nodes depict their 26-neigbors in the voxel_grid. The weigth of each edge is the distance between their voxel center position.
If connect_all_point is False, then the graph returned is the subgraph with the biggest connected components. If connect_all_point is True, the subgraph of connected components are edged via the closest neighbors between the subgraph with a weigth equal to the distance between their position.
Parameters: Returns: graph
Return type: networkx.Graph