NurbsCurve class

NurbsCurve class

NURBS curve is a curve represented by NURBS(Non-uniform rational basis spline), A NURBS curve is defined by its NurbsCurve.order, a set of weighted Geometry.control_points and a NurbsCurve.KnotVectors The w component in control point is used as control point’s weight, whatever it is a CurveDimension.TWO_DIMENSIONAL or CurveDimension.THREE_DIMENSIONAL

Inheritance: NurbsCurveCurveEntitySceneObjectA3DObject

The NurbsCurve type exposes the following members:

Constructors

ConstructorDescription
initInitializes a new instance of the NurbsCurve class.
initInitializes a new instance of the NurbsCurve class.

Properties

PropertyDescription
nameGets or sets the name.
propertiesGets the collection of all properties.
sceneGets the scene that this object belongs to
parent_nodesGets all parent nodes, an entity can be attached to multiple parent nodes for geometry instancing
excludedGets or sets whether to exclude this entity during exporting.
parent_nodeGets or sets the first parent node, if set the first parent node, this entity will be detached from other parent nodes.
colorGets or sets the color of the line, default value is white(1, 1, 1)
orderGets or sets the order of a NURBS curve, it defines the number of nearby control points that influence any given point on the curve.
dimensionGets or sets the curve’s dimension.
curve_typeGets or sets the type of the curve.
rationalGets or sets whether it is rational, this value indicates whether this NurbsCurve is rational spline or non-rational spline.
Non-rational B-spline is a special case of rational B-splines.

Methods

MethodDescription
remove_propertyRemoves a dynamic property.
remove_propertyRemove the specified property identified by name
get_propertyGet the value of specified property
set_propertySets the value of specified property
find_propertyFinds the property.
It can be a dynamic property (Created by CreateDynamicProperty/SetProperty)
or native property(Identified by its name)
get_bounding_boxGets the bounding box of current entity in its object space coordinate system.
get_entity_renderer_keyGets the key of the entity renderer registered in the renderer
evaluateEvaluate the NURBS curve
evaluate_atEvaluate the curve’s point at specified position

See Also