calfem.vis_mpl.draw_nodal_values_contour¶

Purpose:

Draw contour plot of nodal values on a triangulated mesh.

Syntax:

cfv.draw_nodal_values_contour(values, coords, edof, levels=12, title=None, dofs_per_node=None, el_type=None, draw_elements=False)

Description:

Source docstring:

Draw contour plot of nodal values on a triangulated mesh.

Parameters
----------
values : array_like
    Nodal values to be plotted as contours.
coords : array_like
    Coordinates of nodes in the mesh, shape (n_nodes, 2).
edof : array_like
    Element degrees of freedom connectivity matrix.
levels : int, optional
    Number of contour levels to draw, default is 12.
title : str, optional
    Title for the plot, default is None.
dofs_per_node : int, optional
    Number of degrees of freedom per node, required if draw_elements is True.
el_type : str, optional
    Element type, required if draw_elements is True.
draw_elements : bool, optional
    Whether to draw the mesh elements on top of contours, default is False.

Notes
-----
The function creates a triangulated contour plot using matplotlib's tricontour.
If draw_elements is True, both dofs_per_node and el_type must be specified
to draw the mesh overlay.

The plot uses equal aspect ratio and displays contours of the provided
nodal values interpolated over the triangulated mesh.