Direction of Polylines

[CadFather]

Does anyone have or know of a LISP or VB application that will automatically place an arrow on a polyline to show what direction it has been drawn?

Regards
Philip

[Jmurphy]

I use a line type with a flow arrow for that.

[brandonbw]

That's what I do too. Now reversing that polyline always seemed like a trick to me.

I use a line type with a flow arrow for that.

[Jmurphy]

That's what I do too. Now reversing that polyline always seemed like a trick to me.

No trick needed in 2011 versions.

Command: pe
PEDIT Select polyline or [Multiple]:
Enter an option [Close/Join/Width/Edit vertex/Fit/Spline/Decurve/Ltype
gen/Reverse/Undo]: R

[BeKirra]

I think he wants a routine to do the tasks:
1) Find the start point (point1) and end point (point2) drawn of the pline.
2) Then place an arrow on the pline, which pointing the direction from point1 to point2.

I suggest you place your question to AutoLisp forum under the Programming directory.
There are bunches of big guys will help you out.

[osnapendp407315]

No trick needed in 2011 versions.

Command: pe
PEDIT Select polyline or [Multiple]:
Enter an option [Close/Join/Width/Edit vertex/Fit/Spline/Decurve/Ltype
gen/Reverse/Undo]: R

Or just use the REVERSE command, no pedit required.

[cadtag]

what would be a handy trick would be a routine that would use (grdraw) to pop up a temporary image of a directional arrow to show the direction of the line w/o having to set a linetype. Even slicker would be if it could look into attached xrefs and display the directional arrow for nested lines/plines.