Part (hwx.inspire.core)

A geometric object made up of any combination of solids, surfaces, and curves (Features). It can also be a mesh.


active: Bool

autoCalcMotionContactResolution: Bool

autoCalculateCG: Bool

autoCalculateMass: Bool

autoCalculateMeshSize: Bool

autoCalculateMoment: Bool

autoCalculateThickness: Bool

cg: Location

color: Color

designSpace: Bool

detectCollisions: Bool

flexible: Bool

ground: Bool

ignoreFlexibility: Bool

ip: Inertia

mass: Double

material: Attribute

maxFreq: Double

maxMeshSize: Double

maxThickness: Double

minGap: Double

minMeshSize: Double

minThickness: Double

modeType: Enum

modifiable: Bool

morphable: Bool

motionContactResolution: Enum

movable: Bool

name: Attribute

numModes: Int

orderType: Enum

position: Attribute

rigidGroup: Attribute

sheetThickness: Double

strainCalculation: Bool

stressCalculation: Bool

transparency: Double

visible: Bool

volume: Double


Public Methods

classmethod getClass (cls, className)

destroy (self)

findMinimumSeparation (self, other)

getAllChildren (self, type=None, **kwds)

getChild (self, name=None, recursive=False, **kwds)

getChildren (self, type=None, recursive=False, sorted=False, **kwds)

getDependents (self, recursive=False, **kwds)

getFeature (self, name=None)

getFeatures (self, type=None, rep=’BestRep’, **kwds)

getReferences (self, recursive=False, **kwds)

identifyShape (self)

intersects (self, other)

isa (self, type=None, filter=None, name=None, wildcard=None, **kwds)

meshInfo (self)

modelPositions (self)

save (self, file)

Attribute Details

active : Bool

Returns or sets the object activeness.

Setting this on or off sets all children. Setting to True sets all the parents active too.

autoCalcMotionContactResolution : Bool

Returns or sets the motion contact fidelity properties from the part.

autoCalculateCG : Bool

Determines whether the center of gravity is auto calculated.

autoCalculateMass : Bool

Determines whether the mass value is automatically calculated based upon volume and material density.

autoCalculateMeshSize : Bool

Indicates whether the minimum and average element sizes used for the solution are automatically calculated.

Set to False to enter these values manually.

Decreasing the minimum element size will increase the detail of your results in areas that use a number of small elements. The average element size controls the overall detail of your results.

autoCalculateMoment : Bool

Determines whether the mass moment of inertia is automatically calculated.

autoCalculateThickness : Bool

Determines whether the minimum and maximum thickness values are automatically calculated.

All parts are taken into account during the calculation.

cg : Location (units=”length”)

Returns the object’s global center of gravity as a point.

color : Color

Determines the color assigned to the object when it is displayed in the modeling window.

The default color for parts is gray, but a different color can be assigned.

designSpace : Bool

Determines whether the part is a design space.

A part must be designated as a design space if we intend to optimize it.

detectCollisions : Bool

Determines whether to detect collision.

It prevents parts in the model from overlapping and has been enabled by default.

flexible : Bool

Makes the part flexible, if set to True.

ground : Bool

Returns or sets the object to be ground or immovable.

ignoreFlexibility : Bool

Allows the part to ignore flexibility.

ip : Inertia (units=”massMI”)

Specifies the inertial properties of this object.

Resistance to change in motion (ixx, iyy, izz, ixy, izy, ixz).

mass : Double (units=”m”)

The mass of the object.

material : Attribute

The material of the object.

Every part in the model has a material assigned to it. The default material is steel, but a different material can be assigned.

maxFreq : Double (units=”frequency”)

Upper bound frequency for the eigenvalue analysis of the flexible part.

maxMeshSize : Double (units=”length”)

Returns or sets the maximum mesh size of the part.

maxThickness : Double (units=”length”)

The maximum thickness value.

minGap : Double (units=”length”)

minMeshSize : Double (units=”length”)

Returns or sets the minimum mesh size of the part.

minThickness : Double (units=”length”)

The minimum thickness value.

modeType : Enum

How normal modes are defined.

modifiable : Bool

Determines whether the selected object can be edited.

morphable : Bool

Determines whether the selected object shape can be changed.

motionContactResolution : Enum (verylow, low, medium, high, veryhigh)

The resolution of the motion contact. It can be:

  • “verylow”

  • “low”

  • “medium”

  • “high”

  • “veryhigh”

movable : Bool

Determines whether the selected object can be translated in the modeling window or has been locked in place.

name : Attribute

Returns or sets the name of the object.

It can be any text string, including spaces, although it’s best to avoid using the following characters: ” ‘ * ? and $.

While these characters are allowed, they could create difficulties when you export the model to other applications.

numModes : Int

Specifies the number of modes of the part.

orderType : Enum

Order of elements for flexbody mesh.

position : Attribute

Specifies the global transform as a Matrix44.

rigidGroup : Attribute

The rigid group this object belongs to.

sheetThickness : Double (units=”length”)

Thickness of the 2D part used in volume calculation.

strainCalculation : Bool

Determines whether to calculate the strain or not.

stressCalculation : Bool

Determines whether to calculate stress or not.

transparency : Double

Specifies the transparency of the object.

Allows you to change the transparency, according to a percentage. By default, objects are 0% transparent(opaque).

visible : Bool

Determines whether the object is visible in the graphics window.

Setting this on or off sets all children. Setting to True sets all the parents visible too.

volume : Double (units=”volume”)

The volume of the object in the assembly.

Property Details

property dimensions

Number of dimensions utilized by the part’s features:

  • 0 - a point

  • 1 - a line

  • 2 - a sheet

  • 3 - a 3 dimensional part

property holes

Returns a list of holes for this part.

Unlike the model.holes property which returns a list that has extra information like aligned and singular, this returns a standard Python list.

property rigid

Determines if the part is a rigid or not.

Method Details

classmethod getClass(cls, className)

Returns the class of the object.

It can be simple or qualified (with namespace). If the name is simple, we prepend the cls.namespace.

param className

The class name.

type className

Union[Part, Occurrence, Named..]


The class for the specified className.


Union[Part, Occurrence, Named..]


Destroys occurrences from the model.

findMinimumSeparation(self, other)

Find closest points between two parts

param other

The 2nd part.

type other



namedtuple(“ClosestPoints”, “point1 point2 distance feature1 feature2”)

getAllChildren(self, type=None, **kwds)

Returns a list of all children that matches the specified type.

param type

Filter to use to get the children based on object type.

type type


param **kwds

Additional keyword arguments to match other attributes of the object.


The list of children that satisfy the supplied filters.


list[Union[Part, Motor, BoundaryCondition, …]]

getChild(self, name=None, recursive=False, **kwds)

Returns the child of the object which matches the specified unique name.

param name

The name of the child object.

type name


param recursive

Search all descendents.

type recursive


param **kwds

Additional keyword arguments to match attributes of the object.


The child object which satisfies the specified filters.



getChildren(self, type=None, recursive=False, sorted=False, **kwds)

Returns a list of children that is of the specified type.

param type

Filter objects by class.

type type


param recursive

True to get all descendent Parts and Assemblies.

type recursive


param sorted

Sort the children base on id.

type sorted




getDependents(self, recursive=False, **kwds)

Get objects that reference this object through a Reference attribute.

param recursive

type recursive


param **kwds

Filter objects using isa.



getFeature(self, name=None)

Returns the feature based on its name.

getFeatures(self, type=None, rep='BestRep', **kwds)

“Returns a list of features based on specified filters.

param type

Filters the features based on type.

type type

FeaturePoint, FeatureArea, FeatureCylindrical..etc)

param rep

Feature representation. See part.representations for options

type rep


param **kwds

Additional attributes to consider while filtering.

List of

features that satisfies all the filter criteria.


list [FeaturePoint, FeatureArea, FeatureCylindrical..etc)]

getReferences(self, recursive=False, **kwds)

Get objects this object references through a Reference attribute.

param recursive

type recursive


param **kwds

Filter objects using isa.




Attempts to identify the part geometry as a known shape.

The shapes can be:

  • Box

  • Ellipsoid

  • Sphere

  • Cylinder

  • frustum

  • axi-symmetric gear

  • rack


The identified shape.



intersects(self, other)

Finds whether the two parts intersect.

param other

The 2nd part.

type other



True if they intersect, False otherwise.



isa(self, type=None, filter=None, name=None, wildcard=None, **kwds)

Determines if the object matches the specified settings or not.

param type

The type of the object.

type type

Union[Part, Assembly, Contact..]

param filter

Return value of specified callback method.

type filter


param name

Name that matches exactly with object name.

type name


param wildcard

A pattern to match exactly with the object name.

type wildcard


param **kwds

Additional keyword arguments to match other attributes.


True, if a match is found, otherwise False.




Mesh infomation for an assembly or Part.


Forces all objects to return the original model positions instead of the current analysis positions.

Useful when defining draw methods on GeneralObjects where behaviour is different while animating.

save(self, file)

Save the Part in the specified file.

param file

File name and path, where the file needs to be saved. Valid file extensions are:

‘.x_b’, ‘.x_t’, ‘.xmt_bin’, ‘.xmt_txt’, ‘.sat’, ‘.sab’, ‘.iges’, ‘.igs’, ‘.stl’, ‘.step’, ‘.stp’, ‘.obj’, ‘.vrml’, ‘.vrl’.

type file