Drawing freehand sketches
A freehand sketch consists of a series of straight line segments, created either as individual line entities or as a polyline.
A freehand sketch line is not added to the drawing until you "write" the sketch into your drawing.
The SKPOLY system variable defines whether a chain(s) of connected lines or a polyline(s) is created.
The SKETCHINC system variable sets the length or increment of each line or polyline segment. The smaller the increment, the more accurate your sketch is, but a small value increases the file size.
 
The Sketch tool is available on:
- The Draw menu.
- The Draw toolbar.
- The Draw ribbon panel.
General procedure
- 
Launch the SKETCH command. Prompts you: Length of segments <current length>: 
- 
Do one of the following: - 
Press Enter to accept the current length. 
- 
Type a new value in the Command line. 
- 
Click two points to define the length graphically. 
 
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Click to start sketching (pen down). The crosshairs are replaced by the Pencil tool (  ) )Prompts you: Press ENTER or click to toggle [Erase/Connect/save and eXit/Quit no save/Record (save)]: 
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Click to start sketching: as you move the cursor the sketched line displays in light green. 
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(option) Click to stop sketching (pen up), then click again (pen down) to resume. 
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(option) Choose the Erase option. The cursor changes to the Erase tool (  ). ).Move the cursor to the end of a sketch line to start erasing. Click to stop erasing and resume sketching. 
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(option) Choose the Record (save) option to save the sketching line and keep sketching. 
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Choose the save and eXit option to save the sketch lines and exit the sketch command. 

