Intergraph Reader

Supported Entities

Entities supported by the Intergraph reader.

Systems

The following systems, listed in hierarchical order, are supported and created as assemblies or components, when @CreationType = TreeOfComponents.

Generic systems. One assembly is created for each generic system.
- Root systems. One assembly is created for each root system.
  - Plate systems. One component is created for each plate system.
  - Stiffener systems. By default one or more components (depending on the properties you created) are created for each stiffener child geometry; this behavior can be changed based on the ini option @CreateMultipleComponentsForStiffeners.
  - ER systems. Same as stiffener systems.
- Bracket systems. One assembly is created for each bracket system.
  - Bracket system child. One component is created for each bracket child.
  - Stiffener systems
- Beam systems. Same as stiffener systems.
- Member systems. By default one component is created for each member part; this behavior can change based on the ini option @CreateMultipleComponentsForLinearMembers.

When @CreationType is “Parts”, a corresponding tree is created but no assembly entities are created, parts are created instead. The components are also created.

When @CreationType is “BOM Only”, a corresponding tree is created with parts as in the previous case, but no components are actually created.

Compartments

By default, no compartments are imported. To import compartments, the @ImportCompartments or @ImportIGESCompartments ini options should be set.

Topological Properties

By default no topological properties are created; this behavior can change based on the ini option @ImportTopologicalProperties.

Plate Geometries

The following plate geometries are supported and created:

Planar
Curved
External (supported just in IGES format)

Stiffener/ER/Beam Systems Cross Section

The following stiffer/ER/beam system cross sections are supported and created:

Flat bar
Angle
TBar
IBar
Channel
Round
Rectangle

Linear Members

The only member parts that are imported have a straight NURBS as a contour 3D, and a cross section of type round.

Materials and Properties

By default, materials and properties are created for the Nastran solver; a different solver can be selected with the ini option @Solver.

The following properties are created:

For each plate system and bracket child system, a PSHELL property is created.
For stiffener/beam/ER system children, the behavior depends on the analysis type (global or local analysis, see “GUI Options”):
- Local analysis: By default, a component and a PROD property are created for each ER system child, a component and a PSHELL property are created for each web and flange of stiffener/beam system children.
- Global analysis: By default, a component and a PROD property are created for each stiffener/beam/ER system child; if it is longitudinal, then a PBAR property is also created.

By default these properties are assigned to the corresponding components; this behavior can be changed by using the ini option @AssignPropertiesToComponents.

When @CreationType is “Parts” the thickness (assigned to the PSHELL property) is also assigned to the part.

Materials are created for plate systems, bracket, stiffener, beam, and ER children; for the Nastran solver, the material created is of type MAT1.

When @CreationType is “Parts” the material is also assigned to the part.

Import Options

The Intergraph reader uses the intergraph_reader.ini file.

`@AssignPropertiesToComponents`
Value	Description
`on`	Assign properties to the corresponding component (for components which have more than one property, properties are not assigned).
`off`	Do not assign properties to components (default).

`@BodyIdAsMetadata`
Value	Description
`on`	Assign body identifier as metadata. `BODY_ID`
`off`	Do not assign body identifier as metadata (default).

`@CleanupTol`
Value	Description
`double`	A negative value (default) indicates to use the auto cleanup tolerance. A value greater than the calculated auto cleanup tolerance indicates to use that specific tolerance. Refer to the CAD Import Options.

`@CreateMetadataForStiffenerNormals`
Value	Description
`on`	Attach some metadata with information about normals to stiffener/beam/ER systems. `START NORMAL`, `START POINT`, `END NORMAL`, `END POINT`, `MOUNTING RULE`
`off`	Do not attach metadata with information about normals to stiffeners/beam/ER systems (default).

`@CreateMultipleComponentsForLinearMembers`
Value	Description
`on`	Create one component for each member part (default).
`off`	Group member parts belonging to the same member system based on thickness and diameter, that is, just one component is created for each set of data.

`@CreateMultipleComponentsForStiffeners`
Value	Description
`on`	Create one or more components for each stiffener/beam/ER geometry (one for each property; that is, if we have flange and web, then two different properties and components are created) (default).
`off`	Group stiffener/beam/ER geometries belonging to the same root stiffener/beam/ER system based on their properties (that is, just one component is created for each set of property data).

`@CreationType`
Value	Description
`Parts`	Generate a full part-based hierarchy.
`BOMOnly`	Generate an empty part-based hierarchy.
`TreeOfComponents`	Generate an assemblies/components based hierarchy.
`PackIntoSinglePart`	Consolidate hierarchy into a single part.

`@DoNotMergeEdges`
Value	Description
`on`	Preserve the original geometry edges, instead of merging them together during the import cleanup phase.
`off`	Merge edges together during the import cleanup phase (default).

`@ImportCompartments`
Value	Description
`on`	Import both compartments in the IGES files, and compartments defined by “Faces”. The former by importing the geometry, the latter just by creating a metadata; also reference planes are created, because they can be referenced by compartments.
`off`	Do not import any compartments (default).

`@ImportIGESCompartments`
Value	Description
`on`	Import compartments in the IGES files.
`off`	Do not import any compartments in the IGES files (default).

`@ImportPlateSystemMetadata`
Value	Description
`on`	Create physical properties assigned in the XML to plate systems and bracket children as metadata.
`off`	Do not import physical properties assigned in the XML to plate systems and bracket children (default).

`@ImportStiffenerMidSurfaces`
Value	Description
`on`	Create stiffener/beam/ER midsurfaces (instead of solid geometry) in both global and local analysis; also create landing curves in CAD Import Options.
`off`	Create stiffener/beam/ER solid geometry in local analysis, and landing curves in CAD Import Options (default).

`@ImportTopologicalProperties`
Value	Description
`on`	Create reference planes and sketch contours, and attach metadata to the systems which own these properties (see Intergraph Metadata Suppport).
`off`	Do not import topological property (default).

`@LegacyHierarchyAsMetadata`
Value	Description
`on`	Generate metadata with the original CAD hierarchy within the part. `LEGACY_HIERARCHY`
`off`	Do not generate metadata with the original CAD hierarchy within the part (default).

`@MetadataPrefix`
Value	Description
`string`	The string is prefixed to all metadata names. No prefix is used by default. See CAD Metadata Naming for more details.

`@PropertyName`
Value	Description
`string`	Name of the properties created in HyperMesh. It can contain “special” strings that will be replaced with their meaning: `<COMPONENT_NAME>` is the name of the component to which the property is associated, `<PROPERTY_CARD_NAME>` is the name of the property card. Default is `<COMPONENT_NAME>`

`@ScaleFactor`
Value	Description
`double`	Define the model scaling factor during import. Default is 1.0.

`@Solver`
Value	Description
`string`	Use to choose the solver for which materials and properties are created; currently this string can be “nastran” or “ansys”; the default solver is Nastran.

`@SplitComponents`
Value	Description
`Part`	Generate part-based component (only allowed value if `CreationType`=`Parts`).
`General`	Keep component as in CAD (only allowed value if `CreationType`=`TreeOfComponents`).

`@StiffenerJustCurves`
Value	Description
`on`	Create only landing curves for stiffeners.
`off`	Create the complete stiffener geometry (default).

`@TargetUnits`
Value	Description
`CAD units`	Keep the units of the CAD files (default for GUI).
`MKS [m kg N s]`	Convert to the corresponding units system.
`MMKS [mm kg N s]`	Convert to the corresponding units system.
`MPA [mm t N s]`	Convert to the corresponding units system.
`CGS [cm g dyn s]`	Convert to the corresponding units system.
`MMKNMS [mm kg kN ms]`	Convert to the corresponding units system.
`MMGNMS [mm g N ms]`	Convert to the corresponding units system.
`IPS Std [in pounds lbf s]`	Convert to the corresponding units system.
`IPS Grav [in slinch lbf s]`	Convert to the corresponding units system.
`FPS Std [ft pounds lbf s]`	Convert to the corresponding units system.
`FPS Grav [ft slug lbf s]`	Convert to the corresponding units system.
`Scale factor`	Apply the corresponding scale factor (default for no GUI to allow supporting legacy scripts).

Supported Metadata

Metadata generated from the Intergraph reader.

`BODY_ID`
Type	Entities	Description
`string`	points lines surfs	Identifier of the CAD body containing the entity. Generated when `@BodyIDAsMetadata`=`on`

`BRACKET SUPPORT`
Type	Entities	Description
`string`	assems	Created for each bracket system and associated to the bracket system assembly. Its value is "Name = <name_1> ID = <id_1>; Name = <name_2> ID = <id_2>; …; Name = <name_n> ID = <id_n>”, where <name_1>, <name_2>, … <name_n> are the support names and <id_1>, <id_2>, …<id_n> are the support ids.

`COMPARTMENT <name>`
Type	Entities	Description
`string`	assems	Created for each compartment which has a child of type “Faces” and is attached to the generic system assembly to which the compartment belongs to. The <name> field is the name of the compartment; the value is “Faces = <id_1> <id_2>… <id_n> Compartment father = <id>”, where <id_1>, <id_2>…<id_n> are the ids of the faces, and <id> is the id of the compartment father if it exists (there could be a hierarchy of compartments). Generated when `@ImportCompartments = on`.

`END NORMAL`
Type	Entities	Description
`string`	comps	Created for ER systems in any case, and also for stiffener/beam systems.. Its value is the normal direction of the stiffener at the landing curve end point. Generated when `@CreateMetadataForStiffenerNormals = on`.

`END POINT`
Type	Entities	Description
`string`	comps	Created for ER systems in any case, and also for stiffener/beam systems. . Its value is the normal direction of the stiffener at the landing curve end point. Generated when `@CreateMetadataForStiffenerNormals = on`.

`LEGACY_HIERARCHY`
Type	Entities	Description
`string`	points lines surfs	Hierarchy of an entity within a part. Generated when `@LegacyHierarchyAsMetadata`=`on`

`MODELUNIT`
Type	Entities	Description
`integer`	comps parts	Model units specified in the CAD file. 6 = meters This is always generated.

`MOUNTING RULE`
Type	Entities	Description
`string`	comps	Created for ER systems in any case, and also for stiffener/beam systems. Its value is the mounting rule value as found in the XML. Generated when `@CreateMetadataForStiffenerNormals = on`.

`<name>`
Type	Entities	Description
`double` `string`	assems	The attributes that are in the XML under “Details” are attached to the main ship assembly. The <name> field is the attribute name and the double/string is the value of the attribute.
`double` `string`	comps	Physical Properties Physical properties assigned in the XML to plate systems and bracket child are created as metadata. The <name> field is the property name and the double/string is the property value. Generated when `@ ImportPlateSystemMetadata = on`. Molder Properties Molded properties assigned in the XML to plate systems and bracket child are created as metadata. The <name> field is the property name and the double/string is the property value.

`NamingCategory`
Type	Entities	Description
`string`	assems comps	Generated for root system assemblies, bracket system assemblies, stiffener/beam/ER components, and member part components. Its value is the the XML field NamingCategory -> LongDesc.

`OBJECT TYPE`
Type	Entities	Description
`string`	assems comps	Generated for root system assemblies, bracket system assemblies, and stiffener/beam/ER components. Its value can be: RootSystem BracketSystem RootStiffenerSystem RootBeamSystem RootERSystem

`PLANE NAME`
Type	Entities	Description
`string`	surfaces	Created for reference planes. Its value is the name of the reference plane as found in the XML. Generated when `@ImportTopologicalProperties = on` or `@ ImportCompartments = on`.

`REFERENCE PLANE <n>`
Type	Entities	Description
`string`	assems	Created for root systems, for each XML child of type TopologicalProperties -> Boundaries -> RefPlane (the number <n> is just the index of the child). Its value is the value of this field. Generated when `@ImportTopologicalProperties = on`.

`REFERENCE STRUCTURE <n>`
Type	Entities	Description
`string`	assems	Created for root systems, for each XML child of type TopologicalProperties -> Boundaries -> ReferenceStruct (the number <n> is the index of the child). Its value is the value of this field. Generated when `@ImportTopologicalProperties = on`.

`RootSystemID`
Type	Entities	Description
`string`	assems if hierarchy as Assemblies; parts if hierarchy as Parts	Generated for root system assemblies. Its value is the XML field OID.

`START NORMAL`
Type	Entities	Description
`string`	comps	Created for ER systems in any case, and also for stiffener/beam systems. Its value is the normal direction of the stiffener at the landing curve start point. Generated when `@CreateMetadataForStiffenerNormals = on`.

`START POINT`
Type	Entities	Description
`string`	comps	Created for ER systems in any case, and also for stiffener/beam systems. Its value is the landing curve start point. Generated when `@CreateMetadataForStiffenerNormals = on`.

`STIFFENER TYPE`
Type	Entities	Description
`string`	comps	Created for each stiffener/beam/ER system component. Its value is the XML field Molded -> Type.

`XSECTION DATA`
Type	Entities	Description
`string`	comps	Created for ER systems and member parts in any case, and also for stiffener/beam systems. Its value contains the xsection geometrical data (different for each xsection type) in the form “<data name 1> = <data_value 1> <data name 2> = <data value 2>… <data name n> = <data value n>”.