The element contains information about POLYLINE entity.

The <cstPolyline> element must contain child <Vertex> elements that define polyline vertices.

Definition:

<cstPolyline>
 <SubEntities>
  <cstVertex Point="50, 50, 0"/>
  <cstVertex Point="100, 100, 0"/>
  <cstVertex Point="150, 50, 0"/>
  <cstVertex Point="200, 100, 0"/>
  <cstVertex Point="250, 50, 0"/>

<SubEntities>
</cstPolyline>