## On this page # FuseParams Last update: 16.10.2025 ### *class* ansys.meshing.prime.FuseParams(model=None, use\_absolute\_tolerance=None, gap\_tolerance=None, side\_tolerance=None, check\_interior=None, fuse\_option=None, check\_orientation=None, dump\_mesh=None, local\_remesh=None, n\_layers=None, separate=None, angle=None, fuse\_edges\_only=None, json\_data=None, \*\*kwargs) Parameters for fuse operation. - **Parameters:** **model: Model**: Model to create a `FuseParams` object with default parameters. **use\_absolute\_tolerance: bool, optional**: Option to use absolute tolerance value. The default value is false. When use absolute tolerance is true, gap tolerance and side tolerance provided are absolute values. **This is a beta parameter**. **The behavior and name may change in the future**. **gap\_tolerance: float, optional**: Gap tolerance between faces to be fused. The default value is 0.05. **This is a beta parameter**. **The behavior and name may change in the future**. **side\_tolerance: float, optional**: Side tolerance for fusing to the side edges. **This is a beta parameter**. **The behavior and name may change in the future**. **check\_interior: bool, optional**: Option to check the interior nodes. The default value is false. When check interior is true, checks all nodes including boundary edge nodes and nodes inside the faces. **This is a beta parameter**. **The behavior and name may change in the future**. **fuse\_option: FuseOption, optional**: Option for treatment of fused surfaces. The default value is None. **This is a beta parameter**. **The behavior and name may change in the future**. **check\_orientation: bool, optional**: Option to check the face normal orientation during fuse operation. The default value is true. When check orientation is true, face normal orientation is checked during fuse operation. **This is a beta parameter**. **The behavior and name may change in the future**. **dump\_mesh: bool, optional**: Option to save mesh for debugging. The default value is false. When dump mesh is true, mesh is saved for debugging. **This is a beta parameter**. **The behavior and name may change in the future**. **local\_remesh: bool, optional**: Option to remesh the fused region. The default value is true. When local remesh is true, local remeshing of fuse region is performed. **This is a beta parameter**. **The behavior and name may change in the future**. **n\_layers: int, optional**: Face layers around region to be fused. The default value is 2. **This is a beta parameter**. **The behavior and name may change in the future**. **separate: bool, optional**: Option to separate fused regions. The default value is false. When separate is true, the fuse regions are separated into different zonelets. **This is a beta parameter**. **The behavior and name may change in the future**. **angle: float, optional**: Faces zonelets with angle less than the provided value are considered for fuse operation. Default value is 45 degrees. **This is a beta parameter**. **The behavior and name may change in the future**. **fuse\_edges\_only: bool, optional**: Option to fuse edges. The default value is false. When fuse edges only is true, only edges are fused. **This is a beta parameter**. **The behavior and name may change in the future**. **json\_data: dict, optional**: JSON dictionary to create a `FuseParams` object with provided parameters. ### Examples ```pycon >>> fuse_params = prime.FuseParams(model = model) ``` ### Methods NameDescription[`FuseParams.print_default`](ansys.meshing.prime.FuseParams.print_default.md#ansys.meshing.prime.FuseParams.print_default)()Print the default values of `FuseParams` object.[`FuseParams.set_default`](ansys.meshing.prime.FuseParams.set_default.md#ansys.meshing.prime.FuseParams.set_default)(\[...\])Set the default values of the `FuseParams` object.### Attributes NameDescription[`FuseParams.angle`](ansys.meshing.prime.FuseParams.angle.md#ansys.meshing.prime.FuseParams.angle)Faces zonelets with angle less than the provided value are considered for fuse operation.[`FuseParams.check_interior`](ansys.meshing.prime.FuseParams.check_interior.md#ansys.meshing.prime.FuseParams.check_interior)Option to check the interior nodes.[`FuseParams.check_orientation`](ansys.meshing.prime.FuseParams.check_orientation.md#ansys.meshing.prime.FuseParams.check_orientation)Option to check the face normal orientation during fuse operation.[`FuseParams.dump_mesh`](ansys.meshing.prime.FuseParams.dump_mesh.md#ansys.meshing.prime.FuseParams.dump_mesh)Option to save mesh for debugging.[`FuseParams.fuse_edges_only`](ansys.meshing.prime.FuseParams.fuse_edges_only.md#ansys.meshing.prime.FuseParams.fuse_edges_only)Option to fuse edges.[`FuseParams.fuse_option`](ansys.meshing.prime.FuseParams.fuse_option.md#ansys.meshing.prime.FuseParams.fuse_option)Option for treatment of fused surfaces.[`FuseParams.gap_tolerance`](ansys.meshing.prime.FuseParams.gap_tolerance.md#ansys.meshing.prime.FuseParams.gap_tolerance)Gap tolerance between faces to be fused.[`FuseParams.local_remesh`](ansys.meshing.prime.FuseParams.local_remesh.md#ansys.meshing.prime.FuseParams.local_remesh)Option to remesh the fused region.[`FuseParams.n_layers`](ansys.meshing.prime.FuseParams.n_layers.md#ansys.meshing.prime.FuseParams.n_layers)Face layers around region to be fused.[`FuseParams.separate`](ansys.meshing.prime.FuseParams.separate.md#ansys.meshing.prime.FuseParams.separate)Option to separate fused regions.[`FuseParams.side_tolerance`](ansys.meshing.prime.FuseParams.side_tolerance.md#ansys.meshing.prime.FuseParams.side_tolerance)Side tolerance for fusing to the side edges.[`FuseParams.use_absolute_tolerance`](ansys.meshing.prime.FuseParams.use_absolute_tolerance.md#ansys.meshing.prime.FuseParams.use_absolute_tolerance)Option to use absolute tolerance value.