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Plot warping function only over section extents #345

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Merged
merged 1 commit into from
Oct 13, 2023
Merged

Plot warping function only over section extents #345

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21 changes: 14 additions & 7 deletions src/sectionproperties/analysis/section.py
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@

import matplotlib.axes
import matplotlib.patches as mpatches
import matplotlib.tri as tri
import numpy as np
from matplotlib.colors import ListedColormap
from rich.console import Console
Expand Down Expand Up @@ -1680,6 +1681,7 @@ def plot_warping_function(
title: str = "Warping Function",
level: int = 20,
cmap: str = "viridis",
alpha: float = 0.2,
with_lines: bool = True,
**kwargs,
):
Expand All @@ -1690,6 +1692,7 @@ def plot_warping_function(
level: Number of contour levels
cmap: Colormap
with_lines: If set to True, contour lines are displayed
alpha: Transparency of the mesh outlines: :math:`0 \leq \alpha \leq 1`
kwargs: Passed to :func:`~sectionproperties.post.post.plotting_context`

Raises:
Expand All @@ -1707,26 +1710,30 @@ def plot_warping_function(
with post.plotting_context(title=title, **kwargs) as (fig, ax):
assert ax

loc = self.mesh["vertices"]
# create triangulation
triang = tri.Triangulation(
self._mesh_nodes[:, 0],
self._mesh_nodes[:, 1],
self._mesh_elements[:, 0:3],
)

if with_lines:
ax.tricontour(
loc[:, 0],
loc[:, 1],
triang,
self.section_props.omega,
colors="k",
levels=level,
)

ax.tricontourf(
loc[:, 0],
loc[:, 1],
triang,
self.section_props.omega,
cmap=cmap,
levels=level,
)
ax.set_xlabel("X")
ax.set_ylabel("Y")

# plot the finite element mesh
self.plot_mesh(alpha=alpha, materials=False, **dict(kwargs, ax=ax))

return ax

Expand Down