Compute HLR

Functions

A3DStatus

deprecated_A3DComputeOrthoHLROnModelFile

A3DStatus

deprecated_A3DComputeOrthoHLROnModelFile2

Detailed Description

group a3d_HLR_Compute

Compute HLR functions for model file. See HOOPS Exchange documentation

Function Documentation

A3DStatus deprecated_A3DComputeOrthoHLROnModelFile(A3DAsmModelFile const *pModelFile, A3DMkpView const *pOptMrkRView, A3DHLRViewPlaneData const *psHLRViewPlaneData, A3DUns32 *pNumberHLRData, A3DHLRRepresentationItemData **ppHLRData)

Function to compute Hidden Line Removal on a A3DAsmModelFile.

Deprecated:

use A3DComputeOrthoHLROnModelFile3 instead. This will be removed in version 2026.1.0.

Call deprecated_A3DComputeOrthoHLROnModelFile( NULL, pOptMrkRView, NULL, pNumberHLRData, pppHLRData) to release pppHLRData structure ( A3DCrvPolyLine was not released) Note: If the model file doesn’t contain any representation items, function returns A3D_INVALID_DATA error;
Version

8.1

Parameters:

  • pModelFile – [in] Model file to work on.

  • pOptMrkRView – [in] optional A3DMkpView (cut, filter and/or move entities).

  • psHLRViewPlaneData – [in] define a plane as a camera with orthogonal projection.

  • pNumberHLRData – [out] Number A3DHLRRepresentationItemData.

  • ppHLRData – [out] HLR curve result grouped by A3DRiRepresentationItem entity. pppHLRData is automatically allocated by deprecated_A3DComputeOrthoHLROnModelFile.

Return values:

  • A3D_SUCCESS –

  • A3D_INVALID_DATA_STRUCT_NULL –

  • A3D_INVALID_DATA_STRUCT_SIZE –

  • A3D_INVALID_ENTITY_TYPE –

  • A3D_INVALID_DATA –

  • A3D_ERROR –

  • A3D_INCOMPATIBLE_FUNCTION_WITH_KEEP_PARSED_ENTITY_MODE –

Returns:

A3D_SUCCESS on success, or an error code on failure

A3DStatus deprecated_A3DComputeOrthoHLROnModelFile2(A3DAsmModelFile const *pModelFile, A3DMkpView const *pOptMrkRView, A3DHLRViewPlaneData const *psHLRViewPlaneData, A3DUns32 *pNumberHLRRepItem, A3DHLRRepresentationItem ***pppHLRRepItem)

Function to compute Hidden Line Removal on a A3DAsmModelFile.

Deprecated:

use A3DComputeOrthoHLROnModelFile3 instead. This will be removed in version 2026.1.0.

Version

9.0

Call deprecated_A3DComputeOrthoHLROnModelFile2( NULL, NULL, NULL, pNumberHLRRepItem, pppHLRRepItem) to release pppHLRRepItem structure ( internal A3DCrvPolyLine was not released)

If pOptMrkRView is a cutting view, psSectionParametersData can be set to 0. In this case, the cutting planes within pOptMrkRView are used for the computation. Planes must to ordered and be set a profile, otherwise the function will return #A3D_TOOLS_INVALID_SECTION_PLANE.

Remark

If the model file doesn’t contain any representation item, the function will return #A3D_INVALID_DATA error

Parameters:

  • pModelFile – [in] Model file to work on.

  • pOptMrkRView – [in] optional A3DMkpView (cut, filter and/or move entities).

  • psHLRViewPlaneData – [in] define a plane as a camera with orthogonal projection.

  • pNumberHLRRepItem – [out] Number A3DHLRRepresentationItem.

  • pppHLRRepItem – [out] HLR curve result grouped by A3DRiRepresentationItem entity. pppHLRRepItem is automatically allocated by deprecated_A3DComputeOrthoHLROnModelFile2.

Return values:

  • A3D_SUCCESS –

  • A3D_INVALID_DATA_STRUCT_NULL –

  • A3D_INVALID_DATA_STRUCT_SIZE –

  • A3D_INVALID_ENTITY_TYPE –

  • A3D_INVALID_DATA –

  • A3D_ERROR –

  • A3D_TOOLS_INVALID_SECTION_PLANE –

  • A3D_INCOMPATIBLE_FUNCTION_WITH_KEEP_PARSED_ENTITY_MODE –

Returns:

A3D_SUCCESS on success, or an error code on failure