# Polar Stretch [GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [What's new](Help%20System/GSTARCAD/2017/What's%20new/(What's%20new).md) → [Additional Pages](Help%20System/GSTARCAD/2017/What's%20new/Additional%20Pages/(Additional%20Pages).md) <!-- help-structure:notice --> > **Source status:** This source topic has 11 recorded inherited issue(s). [Source issue details](../../Source%20Issues.md). <!-- /help-structure:notice --> > We use the Polar Stretch function of Dynamic Blocks to draw the section symbol in this section. > > 1.Draw Graphics > > Drawing includes the attribute text which can be modified as you need as below: > >  > > 2.Mirror graphics > >  > > 3\. Define blocks > > Define all the mirrored graphics as a block. > > 4.Add action and parameter for the attribute text > > Add Point Parameter and Move Action for text and change the Chain Action to “Yes” .It is ready for next step to create Chain Action for Polar Stretch Action. > >  > > 5.Add Polar Parameter and Action > > Add Polar Parameter whose first point should be the center of the section symbol. This point will be the rotation center of the Polar Parameter. > >  > > Pick the right grip of the Polar Parameter as an associated parameter point and specify the Stretch box as below: > >  > > Select objects to stretch and the “position” Point Parameter together, which can accomplish that the text and section symbol are moving together. > >  > > Specify objects which rotate only for Polar Stretch Action as below: > >  > > Specify Action symbol location as below: > >  > > Repeat the above steps to add the same parameter and action order for the left part. > > It is better if you hide the grips which are not associated with the Polar Stretch Parameter as below: > >  > > 6.Test Dynamic Block > > Open the graphic which needs to be dimensioned and insert the completed dynamic block as below: > >  > > Drag the grip of the dynamic block, the section symbol can be stretched outward and rotated around the center, and you finish the section symbol mark as below: > >  --- Gstarsoft Co.,Ltd