Author Topic: Shorten polyline without any commands (eg Lengthen Break) (Read 1510 times)

Rod · « **on:** February 06, 2011, 04:36:41 AM »

I am looking for a function that will shorten a polyline for use inside a reactor. (So I can't use any autocad commands)
I thought I had seen this function somewhere here but now I am unable to find it.
Does anyone remember seeing this or have a copy of a similar function?

Regards Rod

CAB · « **Reply #1 on:** February 06, 2011, 08:06:25 AM »

Rob,
It's easy enough to modify the end vertex to lengthen the pline using entmod.
But if the reactor is an object reactor called by the pline it can not be modified.
If another object called the reactor or it's a command reactor then you can modify the pline with entmod.

Rod · « **Reply #2 on:** February 06, 2011, 07:36:25 PM »

Thanks CAB
another object will call the reactor.
My routine may require that the polyline endpoint is moved back to a previous segment which is not to difficult for straight lines but would also need to maintain the radius of arcs so the buldge factor would need to be taken into account. With some time I will be able to program this myself. But i was hoping to find something so that I can do some test code and see if my idea works.

CAB · « **Reply #3 on:** February 06, 2011, 08:19:02 PM »

OK, then you will want to look at these:

Rod · « **Reply #4 on:** February 06, 2011, 10:21:36 PM »

Thanks CAB i'll look though them.

News:

Author Topic: Shorten polyline without any commands (eg Lengthen Break) (Read 1510 times)

Rod

Shorten polyline without any commands (eg Lengthen Break)

CAB

Re: Shorten polyline without any commands (eg Lengthen Break)

Rod

Re: Shorten polyline without any commands (eg Lengthen Break)

CAB

Re: Shorten polyline without any commands (eg Lengthen Break)

Rod

Re: Shorten polyline without any commands (eg Lengthen Break)