Offset Spline Does not work

[Anonymous]

Hi,

I have this jointed spline line, but it cannot offset 0.5 distance.

Could anyone help me for this? Thanks in advance.

[jayhar · Accepted solution]

Hi,
Change Properties Then Offset, See The Attachments

Thanks
Jayhar.M.J

[vinodkl · Accepted solution]

Instead of offsetting the spline I would suggest you to convert it into polyline using command "PEDIT" and then use offset. Since the offset distance is very small(0.5) you would not able to notice the difference when its offset. Set the offset distance a little high to know the difference.

 

[leeminardi]

The offset command will not create an offset curve if there exists a concave radius of curvature that is less than the specified offset value.  For a spline this may exist if the Control Vertices (CVs) are very close together. The blue dots indicate the location of the CVs. The selected spline on the left is the original spline.  Note the close spacing of the CVs in the areas circled in red.  In addition, offset will not handle sharp internal corners such as the areas circled in green. Using splinedit I deleted some of these CVs with the resulting spline on the right. Offset did produce a spline for this spline.  

Deleting the excessive CVs may require moving some CVs to recreate the desired shape.  In addition, the sharp corners may require using more than one spline to define the outline.

[Anonymous]

Hi Vinod,

It works, I convert spline to polyline, then all offset works well.

Very much appreciated your help.

Regards

Bob

[Anonymous]

This works thanks Jayhar