omicverse.pl._plot_backend.plot_ConvexHull

omicverse.pl._plot_backend.plot_ConvexHull(adata, basis, cluster_key, hull_cluster, ax, color=None, alpha=0.2)[source]

Add convex hull outline for a specific cluster in embedding plot.

Parameters:

  • adata (AnnData object containing single-cell data.)

  • basis (Embedding basis name in adata.obsm (e.g., 'X_umap', 'X_tsne').)

  • cluster_key (Column name for cluster assignments in adata.obs.)

  • hull_cluster (Specific cluster identifier to outline.)

  • ax (Matplotlib axes object to draw on.)

  • color (Hull color. Default: None (automatic).)

  • alpha (Hull transparency level. Default: 0.2.)

Returns:

  • ax: Modified matplotlib axes object with convex hull added.

  • Examples – >>> import omicverse as ov >>> import matplotlib.pyplot as plt >>> # Create embedding plot with convex hull >>> fig, ax = plt.subplots() >>> ov.pl.embedding(adata, basis=’X_umap’, color=’leiden’, ax=ax) >>> ov.utils.plot_ConvexHull(adata, basis=’X_umap’, cluster_key=’leiden’, … hull_cluster=’0’, ax=ax)