Data Exchange > Creo Legacy Migration > Mapping Annotations > About Mapping 2D Entities to Associative 3D Geometry and Reassociating 2D Annotations
About Mapping 2D Entities to Associative 3D Geometry and Reassociating 2D Annotations
The Legacy Drawing Associator (LDA) automatically maps annotations on the drawing to the annotations associated with the mapped views when you click Map > Copy Annotations on the Legacy Migration tab or right-click and access Copy Annotations. You can map annotations only after the 2D views on the drawing have been automatically or interactively mapped to the 3D model views.
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Do not map annotations until you have automatically or interactively mapped all the drawing views containing annotations to the 3D model views.
The Map > Copy Annotations command copies all the ordinate dimensions of a drawing view as associative ordinate dimensions. Copy Annotations groups the ordinate dimensions and the baseline references before it copies the ordinate dimensions. You can verify whether the ordinate dimensions and their baselines are mapped in the Validate LDA Associations dialog box.
LDA converts the draft data to associative 3D geometry. It collects 2D draft geometry, text, and draft dimensions and replaces this content with the 3D model associative content. For example, dimensions imported as draft data and associated with draft entities are converted to associative dimensions. LDA differentiates the dimension lines from the witness lines and the arrowhead lines. It analyzes the small lines near the endpoints and identifies them as arrowhead elements. It confirms that the dimension lines are oriented in line with the same orientation as the direction of the text. LDA then finds the witness lines that are orthogonal to the dimension lines.
LDA reassociates 2D annotations, draft dimensions, and drawing content to the 2D views so that when you move a view, the associated dimensions move along with the view. Drawing notes and the title block information are not associated with any individual model view. Drawing notes and title blocks are instead associated with the overall drawing sheet view.
LDA also reassociates annotations that you can associate to model geometry. It recreates dimensions as associative dimensions with the appropriate dimension values. The dimension leader is recreated with the appropriate postfix and second line text. The dimensions are attached to the appropriate 3D model geometry that are edges or surfaces, or both, edges and surfaces. The associative dimensions, symbols, and flag notes reference the projected geometry. The associative dimensions, dimension leader, symbols, the leader of each symbol, and flag notes are attached to the appropriate 3D model geometry that are edges or surfaces, or both, edges and surfaces.
When you import data as a draft leader and as unassociated note, after you select the content, LDA replaces the data with a chamfer dimension whose leader is attached to the appropriate projection of the 3D surface.
When you select data that is a callout for an integral component, LDA combines the notes and attaches the notes leader to the projected 3D geometry of the pin. The pin is created as part of the geometry of the part model.
When dimensions are attached to draft data representing a datum axis and not to projections of 3D geometry, you can select the 2D draft geometry of the axis and indicate that the geometry must be replaced by a datum. LDA creates the relevant datum object in the 3D geometry and projects the datum into the view.
Multiline text is generally expanded into individual single line notes. LDA allows you to select the individual note entities and LDA collects them into a single note entity.