The element contains information about LWPOLYLINE entity.

The <cstLWPolyline> element must contain child <cstVertex> elements that define vertices of LWPOLYLINE.

Definition:

<cstLWPolyline>

 <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>
</cstLWPolyline>