Activiti图表bpmn对应的xml文件

当我们绘制了一个bpmn图表，实质是创建了一个xml文件，

右键bpmn文件open  with   xml edit

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <process >
    <startEvent ></startEvent>
    <endEvent ></endEvent>
    <userTask ></userTask>
    <sequenceFlow ></sequenceFlow>
    <sequenceFlow ></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram >
    <bpmndi:BPMNPlane bpmnElement="myProcess" >
      <bpmndi:BPMNShape bpmnElement="startevent1" >
        <omgdc:Bounds height="35.0" width="41.0" x="220.0" y="180.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" >
        <omgdc:Bounds height="35.0" width="35.0" x="640.0" y="180.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" >
        <omgdc:Bounds height="55.0" width="105.0" x="390.0" y="170.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" >
        <omgdi:waypoint x="261.0" y="197.0"></omgdi:waypoint>
        <omgdi:waypoint x="390.0" y="197.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" >
        <omgdi:waypoint x="495.0" y="197.0"></omgdi:waypoint>
        <omgdi:waypoint x="640.0" y="197.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

　　bpmndi:BPMNDiagram中是具体点线坐标的定义，

　　process则是具体的流程定义

　　

　　这里startEvent对应开始节点； endEvent对应结束节点； 

　　userTask对应用户任务节点； sequenceFlow对应用户任务节点