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UML3D for Three Dimensional Animated UML |
| Overview |
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UML3D |
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The development of UML3D is currently in a very early phase. By now, there are only a few visual icons without any UML specific semantics at all. These icons are in the package uml3d.visual uml3d.tar Download this file into a directory of your choice and set your
CLASSPATH appropriately.
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| Design |
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For the sake of simplicity, there are a couple of classes one can use to create a simple application. TestVisual uses the 3 dimensional graph elements in uml3d.visual to show 2 boxes which are connected by an arrow. UmlCanvas is a wrapper class around all the Java3D stuff such as
navigation, light and pick support. It creates a universe the
user can walk in by using the arrow keys. Two lights (one directional
and one ambient) are placed in the universe. Dragging of shapes is
implemented by a PickTranslateBehavior object.
One can regard a UmlWorld as a dynamic three dimensional graph. A SimpleBox is a node and a SimpleConnection is an edge. Either can be added to the world by invoking addChild(Node) on UmlWorld (unless the world has been made alive). But to support correct dragging, one should only add Boxes this way or by invoking add(SimpleBox sb). Connections can by created and added by invoking connect(box1,box2,con1). This way, two SimpleBoxes are connected and whenever either of them changes its translation, an instance of SimpleObjectBehavior is woken up and changes translation, orientation and length of the SimpleConnection Connections may be of any form: arrows represent message invokations or inheritance relationships, arrows without heads may represent associations. They are distinguished by the h and r variables in the class Arrow. Thus, a SimpleConnection looks like an association without a name, roles and multiplicities.
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