Note
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Plot Over Line#
Plot the values of a dataset over a line through that dataset
from __future__ import annotations
import pyvista as pv
from pyvista import examples
Volumetric Mesh#
First a 3D mesh example to demonstrate
mesh = examples.download_kitchen()
# Make two points to construct the line between
a = [mesh.bounds[0], mesh.bounds[2], mesh.bounds[4]]
b = [mesh.bounds[1], mesh.bounds[3], mesh.bounds[5]]
# Preview how this line intersects this mesh
line = pv.Line(a, b)
p = pv.Plotter()
p.add_mesh(mesh, style="wireframe", color="w")
p.add_mesh(line, color="b")
p.show()
![plot over line](../../_images/sphx_glr_plot-over-line_001.png)
Run the filter and produce a line plot
![p1 Profile](../../_images/sphx_glr_plot-over-line_002.png)
Flat Surface#
We could also plot the values of a mesh that lies on a flat surface
mesh = examples.download_st_helens()
# Make two points to construct the line between
a = [mesh.center[0], mesh.bounds[2], mesh.bounds[5]]
b = [mesh.center[0], mesh.bounds[3], mesh.bounds[5]]
# Preview how this line intersects this mesh
line = pv.Line(a, b)
p = pv.Plotter()
p.add_mesh(mesh)
p.add_mesh(line, color="white", line_width=10)
p.add_point_labels([a, b], ["A", "B"], font_size=48, point_color="red", text_color="red")
p.show()
![plot over line](../../_images/sphx_glr_plot-over-line_003.png)
Run the filter and produce a line plot
![Elevation Profile](../../_images/sphx_glr_plot-over-line_004.png)
Total running time of the script: (0 minutes 2.477 seconds)