parq_blockmodel.utils.demo_block_model.add_gradient_ellipsoid_grade

parq_blockmodel.utils.demo_block_model.add_gradient_ellipsoid_grade(df, center, radii, grade_min=5.0, grade_max=65.0, bearing=0.0, dip=0.0, plunge=0, column_name='grade', noise_std=0.1)[source]

Add a gradient ellipsoid grade to the block model DataFrame.