pyvista.merge#

merge(

datasets,

merge_points: bool = True,

main_has_priority: bool | None = None,

progress_bar: bool = False,

)[source]#

Merge several datasets.

Note

The behavior of this filter varies from the PolyDataFilters.boolean_union() filter. This filter does not attempt to create a manifold mesh and will include internal surfaces when two meshes overlap.

Warning

The merge order of this filter depends on the installed version of VTK. For example, if merging meshes a, b, and c, the merged order is bca for VTK<9.5 and abc for VTK>=9.5. This may be a breaking change for some applications. If only merging two meshes, it may be possible to maintain some backwards compatibility by swapping the input order of the two meshes, though this may also affect the merged arrays and is therefore not fully backwards-compatible.

Parameters:

datasetssequence[pyvista.DataSet]

Sequence of datasets. Can be of any pyvista.DataSet.

merge_pointsbool, default: True

Merge equivalent points when True.

main_has_prioritybool, default: True

When this parameter is True and merge_points=True, the arrays of the merging grids will be overwritten by the original main mesh.

Deprecated since version 0.46: This keyword will be removed in a future version. The main mesh always has priority with VTK 9.5.0 or later.

progress_barbool, default: False

Display a progress bar to indicate progress.

Returns:

pyvista.DataSet

pyvista.PolyData if all items in datasets are pyvista.PolyData, otherwise returns a pyvista.UnstructuredGrid.

Examples

Merge two polydata datasets.

>>> import pyvista as pv
>>> sphere = pv.Sphere(center=(0, 0, 1))
>>> cube = pv.Cube()
>>> mesh = pv.merge([cube, sphere])
>>> mesh.plot()

Static Scene

Interactive Scene