See the IPrimaryMemberFacePlaneIntersectionFeatureData examples.

See the IPrimaryMemberPointLengthFeatureData examples.

See the IPrimaryMemberPathSegmentFeatureData examples.

See the IPrimaryMemberRefPlaneFeatureData examples.

See the ISecondaryMemberBetweenPointsFeatureData examples.

This interface accesses the top-level folder of a structure system in the FeatureManager design tree. The structure system folder contains one or more profile group folders. Each profile group folder contains profile references and structure system members.

A structure system appears as follows in the FeatureManager design tree. In parentheses are the APIs that you use to access the item:

- Structure System1 (IStructureSystemFolder accessors)

  - Structure System Grid1

  - <ansi inch> <c channel><3 x 5> (1) (IProfileGroupFolder accessors)

     - Plane2 (profile reference plane - IProfileGroupFolder::GetPlane)

     - Sketch11 (profile sketch - IProfileGroupFolder::GetSketch)

     - Member1 (structure system member - IProfileGroupFolder::GetStructureSystemMembers)

To create a structure system:

1. Create an IStructureSystemMemberFeatureData object for every primary and secondary structure system member you intend to create.
2. Create IStructureSystemSplitMember objects as needed. Use IStructureSystemMemberFeatureData::IsSplit to indicate that split members exist.
3. Create one or more IStructureSystemMemberProfile objects as the number of different profiles is needed.
4. Cast the IStructureSystemMemberFeatureData objects to IPrimaryStructuralMemberFeatureData objects and  ISecondaryStructuralMemberFeatureData objects as needed.
5. Create specific primary member feature data objects by casting IPrimaryStructuralMemberFeatureData objects to:
   
     -  IPrimaryMemberFacePlaneIntersectionFeatureData
     -  IPrimaryMemberPathSegmentFeatureData
     -  IPrimaryMemberPointLengthFeatureData
     -  IPrimaryMemberRefPlaneFeatureData
   
6. Create specific secondary member feature data objects by casting ISecondaryStructuralMemberFeatureData objects to:
   
     -  ISecondaryMemberBetweenPointsFeatureData
     -  ISecondaryMemberSupportPlaneFeatureData
   
7. Use the methods and properties on the specific primary and secondary member feature data objects to detail the structure system members.
8. Call IModelDocExtension::CreateStructureSystem(primaryFDArray, secondaryFDArray), where primaryFDArray is an array of primary IStructureSystemMemberFeatureData objects and secondaryFDArray is an array of secondary IStructureSystemMemberFeatureData objects created in step 1.

To edit a structure system:

1. Get the structure system folder feature, which is returned by IModelDocExtension::CreateStructureSystem in step 8 above. Then call the accessor of this interface, IFeature::GetSpecificFeature2.
   (Or call both accessors of this interface.)
2. Use IStructureSystemFolder::GetProfileGroupFolders to access the profile group folders in a structure system folder.
3. Use IProfileGroupFolder methods and properties to get the sketch, reference plane, and structure system members in each profile group folder.
4. Use IStructureSystemMemberFeatureData::StructureSystemMemberType to determine whether a structure system member retrieved in step 3 is a primary or a secondary member.
5. Call IStructureSystemMemberFeatureData::AccessSelections before editing the selections used to create the structure system. Call IStructureSystemMemberFeatureData::ReleaseSelectionAccess after editing.
6. Cast IStructureSystemMemberFeatureData objects to their subclass feature data objects (see create steps 5 and 6).
7. If you need to change a structure member's profile, use IStructureSystemMemberFeatureData::MemberProfile to get the IStructureSystemMemberProfile object for each structure member.
8. Complete the structure system edit by calling IStructureSystemMemberFeatureData::GetFeature, calling methods and properties on objects retrieved in previous steps as required, and finally calling IFeature::ModifyDefinition.

Use the examples as models to create and edit structure sytems in your own applications.

For more information, read the SOLIDWORKS user-interface help > Weldments and Structure System > Structure System topics.

StructureSystemFolder