add_mesh_isovalue#
- WidgetHelper.add_mesh_isovalue(mesh, scalars=None, compute_normals=False, compute_gradients=False, compute_scalars=True, preference='point', title=None, pointa=(0.4, 0.9), pointb=(0.9, 0.9), widget_color=None, **kwargs)[source]#
Create a contour of a mesh with a slider.
Add a mesh to the scene with a slider widget that is used to contour at an isovalue of the point data on the mesh interactively.
The isovalue mesh is saved to the
.isovalue_meshes
attribute on the plotter.- Parameters
- mesh
pyvista.DataSet
The input dataset to add to the scene and contour.
- scalars
str
,optional
The string name of the scalars on the mesh to contour and display.
- compute_normalsbool,
optional
Enable or disable the computation of normals. If the output data will be processed by filters that modify topology or geometry, it may be wise to disable computing normals.
- compute_gradientsbool,
optional
Enable or disable the computation of gradients. If the output data will be processed by filters that modify topology or geometry, it may be wise to disable computing gradients.
- compute_scalarsbool,
optional
Enable or disable the computation of scalars.
- preference
str
,optional
When
mesh.n_points == mesh.n_cells
and setting scalars, this parameter sets how the scalars will be mapped to the mesh. Default'points'
, causes the scalars will be associated with the mesh points. Can be either'points'
or'cells'
.- title
str
,optional
The string label of the slider widget.
- pointasequence,
optional
The relative coordinates of the left point of the slider on the display port.
- pointbsequence
The relative coordinates of the right point of the slider on the display port.
- widget_color
color_like
,optional
Color of the widget. Either a string, RGB sequence, or hex color string. For example:
color='white'
color='w'
color=[1.0, 1.0, 1.0]
color='#FFFFFF'
- **kwargs
dict
,optional
All additional keyword arguments are passed to
BasePlotter.add_mesh()
to control how the mesh is displayed.
- mesh
- Returns
vtk.vtkActor
VTK actor of the mesh.