Collision computation

Types

	A3DTransfoRepresentationItemData
	A3DCollisionGroupData
	A3DCollisionParameterData
	A3DCollisionResultData
	`A3DCollisionType`

Fields

	`A3DCollision_Unknown`
	`A3DCollision_NoCollision`
	`A3DCollision_Clearance`
	`A3DCollision_Contact`
	`A3DCollision_Collision`
	`A3DCollision_FirstInside`
	`A3DCollision_SecondInside`

Functions

A3DStatus

A3DCollisionCompute

Detailed Description

group a3d_collision

Determine if there are interferences between parts from an assembly.

This functionality allows to determine if there are interferences (clashes) between parts from an assembly, and if a specified clearance distance is verified between parts (clearance analysis).

Depending on the nature of the analysis, one or two groups can be defined:

One group: the analysis is processed on all the selected parts that are included in the group.
Two groups: the analysis is processed between the two groups, but not inside the groups.

Type Documentation

enum A3DCollisionType

Collision type between to A3DRiRepresentationItem.

Version: 11.1

Values:

enumerator A3DCollision_Unknown: Cannot compute the result.

enumerator A3DCollision_NoCollision: There is no colision or contact between the two A3DRiRepresentationItem.

enumerator A3DCollision_Clearance: The safety distance is not verified between the two A3DRiRepresentationItem.

enumerator A3DCollision_Contact: There is a contact between the two A3DRiRepresentationItem.

enumerator A3DCollision_Collision: There is a collision between the two A3DRiRepresentationItem.

enumerator A3DCollision_FirstInside: The first A3DRiRepresentationItem is inside of the second A3DRiRepresentationItem.

enumerator A3DCollision_SecondInside: The second A3DRiRepresentationItem is inside of the first A3DRiRepresentationItem.

Function Documentation

A3DStatus A3DCollisionCompute(A3DCollisionGroupData const *pGroup1, A3DCollisionGroupData const *pGroup2, A3DCollisionParameterData const *pParameterData, A3DUns32 *uCollisionResultsSize, A3DCollisionResultData **pCollisionResults)

Determine interferences between A3DRiRepresentationItem.

This function allows to determine if there are interferences between A3DRiRepresentationItem from one or two groups.

Version: 11.1

Call A3DCollisionCompute( NULL, NULL, NULL, uCollisionResultsSize, pCollisionResults) to release pCollisionResults structure

if pParameterData->m_dContactLimit is set to 0., the function return only A3DCollision_Collision instead of A3DCollision_Contact, A3DCollision_FirstInside and A3DCollision_SecondInside.

Parameters:

pGroup1 – [in] define the first group of A3DTransfoRepresentationItemData.
pGroup2 – [in] define a optional second group of A3DTransfoRepresentationItemData.
pParameterData – [in] set parameters for collision computation.
uCollisionResultsSize – [out] Number of A3DCollisionResultData in pCollisionResults.
pCollisionResults – [out] Array of A3DCollisionResultData, containing collision computation result. pCollisionResults is automatically allocated by A3DCollisionCompute.

Returns:

A3D_SUCCESS on success, or an error code on failure

Return values:

A3D_INVALID_DATA_STRUCT_SIZE –
A3D_INVALID_DATA_STRUCT_NULL –
A3D_INVALID_DATA –
A3D_SUCCESS –
A3D_ERROR –