Modify Expansion View
- Last UpdatedJan 23, 2023
- 3 minute read
An expansion view can be modified using the Format 2D tab (refer to Format 2D View for further information).
When an expansion view is created, it must remain as an expansion view. An expansion view cannot be modified to any other view type. A new view must be created if an expansion view for another surface is required.
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Advanced view type |
Displays the view type. By default, the field is populated with Expansion. The view type cannot be modified. |
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Expansion Direction |
Displays the expansion direction which is defined when the expansion view is created. The expansion direction cannot be modified. |
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Main Direction |
Displays the main direction which is defined when the expansion view is created. The main direction cannot be modified. |
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Origin |
Displays the origin which is defined when the expansion view is created. The origin cannot be modified. |
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Surface |
Displays the view surface which is defined when the expansion view is created. The surface value cannot be modified. |
Note:
The Perspective angle property cannot be modified for an expansion view.
View Limits
The view limits are initially set to the limits of the selected surface and can be modified. The view limits affect the drawlist selection, only model elements fully or partially within the view limits are drawn.
The view limits are used for 3D clipping, only the parts of the model elements that are within the view limits will be unfolded. This avoids unfolding curves in a geometrically tricky part of the surface. This type of clipping is unique for the expansion view and is a substitute for section planes which are not available for expansion views.
ID List
The ID list is initially populated with the content selected during the creation operation, ID list entries can be added or removed using the Drawlist Manager. Refer to Define View Contents for further information.
Multi-location View and Representation Style
To produce an expansion view, the correct representation style must be applied. In the RRUL element the Repstyle attribute must be set to Expansion.
When applied, the SymbolicMultiLoc repstyle unfolds the curve representation of the model elements. Expansion representation can be applied to:
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Curve (CRMCUR)
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Stiffener (ISTIFF)
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Boundary (IBNDRY)
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Curve Arrangement (FNCCAR)
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Area Arrangement (FNCAAR)
The model elements are unfolded if they have a relation to the expansion surface setup for the view, otherwise they are ignored.
Note that if Expansion is setup for an element type (for example, an equipment element) that does not support this representation style it is not drawn. Drawing the element with ordinary representation in the view does work.
View Type
When the model elements in the expansion view are drawn with the Expansion representation style, the view type is irrelevant. The functionality to change the view type is not disabled, it could be relevant if model elements are drawn with the default representation style in the same view. This is probably a less common use case, but Draw does not inhibit such a view setup.