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What is "di:waypoint " in BPMN? [message #1232329]

Thu, 16 January 2014 17:46

Blerta Dhimitri

Messages: 1
Registered: January 2014

Junior Member

Hi everyone!
I've been reading on the XML structure of BPMN files and I have understood everything expect the use of di:waypoint.
Here is a small xml of a bpmn file:

<?xml version="1.0" encoding="UTF-8"?>
<definitions id="Definition">
<process processType="Private" isExecutable="true" id="Minimal" name="Minimal Process" >


<startEvent id="_1" name="StartProcess" />
<scriptTask id="_2" name="Hello" >
<script>System.out.println("Hello World");</script>
</scriptTask>
<endEvent id="_3" name="EndProcess" >
<terminateEventDefinition/>
</endEvent>


<sequenceFlow id="_1-_2" sourceRef="_1" targetRef="_2" />
<sequenceFlow id="_2-_3" sourceRef="_2" targetRef="_3" />

</process>

<bpmndi:BPMNDiagram>
<bpmndi:BPMNPlane bpmnElement="Minimal" >
<bpmndi:BPMNShape bpmnElement="_1" >
<dc:Bounds x="15" y="91" width="48" height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_2" >
<dc:Bounds x="95" y="88" width="83" height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="_3" >
<dc:Bounds x="258" y="86" width="48" height="48" />
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="_1-_2" >
<di:waypoint x="39" y="115" />
<di:waypoint x="75" y="46" />
<di:waypoint x="136" y="112" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="_2-_3" >
<di:waypoint x="136" y="112" />
<di:waypoint x="240" y="240" />
<di:waypoint x="282" y="110" />
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>

</definitions>

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Re: What is "di:waypoint " in BPMN? [message #1232360 is a reply to message #1232329]

Thu, 16 January 2014 19:18

Robert Brodt

Messages: 811
Registered: August 2010
Location: Colorado Springs, CO

Senior Member

Hi Blerta, and welcome to the forum Smile

Waypooints, also know as "bend points" in GEF, are x/y coordinates through which a connection line should be drawn when it is rendered in an editor. All coordinates are absolute values with 0,0 at the top left of the diagram. The list of Waypoints includes the starting and ending location of the connection as well, these are typically at the edges of the connection's source and target shapes.

Cheers,
Bob

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