Linear Curve
Types
A3DCrvLineData |
Functions
A3DStatus |
A3DCrvLineGet |
A3DStatus |
A3DCrvLineCreate |
Detailed Description
-
group
a3d_crvline
Entity type is kA3DTypeCrvLine.
- Version
- 2.0
The canonical form is defined with the help of A3DMiscCartesianTransformationData, its origin (parameter 0) being the origin of the line and its vector X being the direction of the line. A3DParameterizationData allows for reparameterization and trim.
Example of a line segment
In the above illustration, the line is restricted to [ t0 , t1 ] interval on the X vector of its Cartesian transformation.
Note
Scale from A3DMiscCartesianTransformationData must be taken into account in previous evaluation’s algorithms.
Note
Y vector from A3DMiscCartesianTransformationData has no particular meaning in this case and must be ignored.
Function Documentation
-
A3DStatus
A3DCrvLineGet
(const A3DCrvLine *pCrv, A3DCrvLineData *pData) Populates the A3DCrvLineData structure.
- Version
- 2.0
Note
Y vector from A3DMiscCartesianTransformationData has no particular meaning in this case and must be ignored.
Return values: - A3D_INITIALIZE_NOT_CALLED –
- A3D_INVALID_DATA_STRUCT_SIZE –
- A3D_INVALID_DATA_STRUCT_NULL –
- A3D_INVALID_ENTITY_NULL –
- A3D_INVALID_ENTITY_TYPE –
- A3D_CRV_CANNOT_ACCESS_CANONICAL –
- A3D_SUCCESS –
Returns: A3D_SUCCESS
on success, or an error code on failure
-
A3DStatus
A3DCrvLineCreate
(const A3DCrvLineData *pData, A3DCrvLine **ppCrv) Creates an A3DCrvLine from A3DCrvLineData structure.
- Version
- 2.0
Note
The Y vector from A3DMiscCartesianTransformationData has no particular meaning in this case, but must be set so that it is normed and perpendicular to the X vector. This is mandatory.
Return values: - A3D_INVALID_DATA_STRUCT_SIZE –
- A3D_INVALID_DATA_STRUCT_NULL –
- A3D_INTERVAL_INCONSISTENT_DATA –
- A3D_SUCCESS –
Returns: A3D_SUCCESS
on success, or an error code on failure