Topic: polyline with different left/right width?

[alisafei]

hi, i have a polyline represrenting a road alignment, the centerline of that road have different left/right roadway width, so i needed this one.
if i use the global width, it is same (50%-50%) left and right side of the polyline.
is there any method to make different polyline width..like 6-left and 8-right of the selected polyline....

i think we have use the "hatch" method also, select a polyline and hatch it like forum 2 point hatching, but i dont know how to fix it exactly.
needed help?
thanks. 

[CAB]

Not really a center line then is it?

No way with a polyline that I am aware of.
I suppose you could use a multi-line.

[DEVITG]

hi, i have a polyline represrenting a road alignment, the centerline of that road have different left/right roadway width, so i needed this one.
if i use the global width, it is same (50%-50%) left and right side of the polyline.
is there any method to make different polyline width..like 6-left and 8-right of the selected polyline....

i think we have use the "hatch" method also, select a polyline and hatch it like forum 2 point hatching, but i dont know how to fix it exactly.
needed help?
thanks. 

Why not offset ?

[alisafei]

of course, there are some other process to do it, but it need many functions and totally manually, so i searched for lisp program to automate it..
like select the polyline, set left width, set right width and done.

[CAB]

If you could post a sample DWF file with the center line before and an example of how
you want the roadway after running the lisp. This would help to see what you are
wanting the lisp to do.

[DEVITG]

of course, there are some other process to do it, but it need many functions and totally manually, so i searched for lisp program to automate it..
like select the polyline, set left width, set right width and done.

I mean , offset by lisp , off course.

Please upload a dwg , with a before and after

[alisafei]

hi,i am trying to upload a drawing file, please look at it.
it is the same color of left/right of the polyline, it may be different color as user defined.

[DEVITG]

Send it to my email.

[CAB]

To attach a file or upload a file you will need to "Reply" to open the edit window,
then below the message click on "Additional Options". This will show more options.
Click the Browse button.

[alisafei]

To attach a file or upload a file you will need to "Reply" to open the edit window,
then below the message click on "Additional Options". This will show more options.
Click the Browse button.

hi, i did the same thing.
all of you can view the image which i uploaded here?
at least i can view the image which i uploaded.

[DEVITG]

I can see the image.

But I mean , to UPLOAD  a TRUE dwg .

[CAB]

Sorry, I thought you were still having trouble uploading a DWG file.

A DWG file would tell us what layers you are using, which center line is continuous and what hatch pattern you are using.

[alisafei]

ok friends, this time i am uploading the dwg file.

[DEVITG]

ok friends, this time i am uploading the dwg file.

It is far beyond my lisp skills.

Sorry



 

[CAB]

You could offset the center line to each side at 1/2 the desired side width & set
the pline width to the desired width thereby eliminating the need for a hatch.
This would mean that you end up with two polylines. How does that sound?

[DEVITG]

You could offset the center line to each side at 1/2 the desired side width & set
the pline width to the desired width thereby eliminating the need for a hatch.
This would mean that you end up with two polylines. How does that sound?

Good for me , I did dot know how to handle it by (setvar 'plinewid nn) been nn the desired width .
Thanks , I learn my new thing of the day.
I can rest until tomorrow.
Gabriel