Troubleshooting
Problem
In IBM Rational Software Architect and IBM Rational Software Modeler, when a class diagram is automatically arranged using the “Arrange all” diagram context menu item, sometimes the resulting diagram can contain overlapping elements and text. This is particularly the case when the names on the ends of associations are long.
Symptom
Steps to reproduce:
1. Create a class Diagram in a model.
2. Drag four Class types from Palette to create four classes (named Class1, Class2, Class3 and Class4).
3. Create associations between the classes in the following order Class2 – Class1, Class2 – Class3, Class3 – Class1, Class3 – Class4.
4. Left click on the diagram background then right click and select Arrange All. The diagram rearranges but the labels on the Class3 ends of the associations overlap the Class symbol as in the following screenshot:
Cause
The reason for this is that the “Arrange all” does not take into consideration the sizes of labels.
Resolving The Problem
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IBM Rational Client Support developed a pluglet to show how to relocate elements programmatically. The pluglet will scale the spacing between nodes so that the association labels are then less likely to overlap the nodes. This pluglet performs a scaling of the diagram and not a zoom, the size of each of the elements does not change. The only change is the relative distance between the nodes which is doubled.
To install and run this pluglet, download the attached pluglet project and follow the instructions in the link in the Related information section.
Applying this pluglet to the above diagram results in the following layout:
Related Information
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Document Information
Modified date:
29 September 2018
UID
swg21385255