The GrapherPin Renderer

INDEX PREVIOUS NEXT

The GrapherPin renderer defines the exact positions where links will be connected to the nodes of the graph. For example, Code Sample 4.12 shows a rule which declares that a node of tag split has three connection points: one at the top of the node's bounding rectangle, one on the left, and another one on the right.

node.split {
  GrapherPin[0] : "Top";
  GrapherPin[1] : "Left";
  GrapherPin[2] : "Right";
}

Other rules can then make use of the connection points defined to specify where different types of links are to be connected. For example, Code Sample 4.13 shows a rule that connects all links of tag transition whose condition property is true from the right of the source node to the top of the destination node.

link.transition[condition="true"] {
  FromPin : "2";   // pin #2 = Right (see node.split rule)
  ToPin : "0";     // pin #0 = Top (see node.split rule)
}

The grapher pins are taken into account during editing when you create a new link or when you reconnect an existing link. They are displayed as small circles during the interaction.

Table 4.5 lists the per-object rendering properties of the GrapherPin renderer.

For more details, see the class ilog.views.sdm.renderer.IlvGrapherPinRenderer.