LagrangeTriangle

LagrangeTriangle(*, cell_order: int = 3) → UnstructuredGrid

Create a pyvista.UnstructuredGrid containing a single Lagrange triangle.

This cell corresponds to the pyvista.CellType.LAGRANGE_TRIANGLE cell type.

Parameters:

cell_orderint, default: 3

Order of interpolation to use.

Returns:

pyvista.UnstructuredGrid

UnstructuredGrid containing a single Lagrange triangle.

Examples

Download Python source code | Download Jupyter notebook

Create and plot a single Lagrange triangle.

>>> from pyvista import examples
>>> grid = examples.cells.LagrangeTriangle()
>>> examples.plot_cell(grid, cpos='xy')

Static Scene

Interactive Scene

List the grid’s cells.

>>> grid.cells
array([10,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9]...)

List the grid’s points.

>>> grid.points
pyvista_ndarray([[0.        , 0.        , 0.        ],
                 [1.        , 0.        , 0.        ],
                 [0.        , 1.        , 0.        ],
                 [0.33333334, 0.        , 0.        ],
                 [0.66666669, 0.        , 0.        ],
                 [0.66666669, 0.33333334, 0.        ],
                 [0.33333334, 0.66666669, 0.        ],
                 [0.        , 0.66666669, 0.        ],
                 [0.        , 0.33333334, 0.        ],
                 [0.33333334, 0.33333334, 0.        ]])

>>> grid.celltypes  # same as pyvista.CellType.LAGRANGE_TRIANGLE
array([69], dtype=uint8)