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tangent to two splines
Is there a command or method of drawing a line tangent to two splines?
As with circles -->
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@jdfnnl ,
You will need a special APP or LISP to be precise, but this should get you fairly close.
Draw a line NEAREST (A) to TANGENT (B) - (Red Line).
Then draw a line from the ENDPOINT (B) to TANGENT (A) - (Green Line).
You may want to draw a final line from ENDPOINT (A) to TANGENT (B) - for precision and use this line.
Please select the "Accept as Solution" button if my post solves your issue or answers your question.
Emilio Valentin
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I agree with others that an app or converting to plines may be better, but I have used something similar to below method before.
Approximate the circle of the curve using circle with 3 point. Do this for both curves. Then do a tangent to those circles. There will need to be clean up after to make sure you have got it on the actual spline but for my purposes this worked well for me.
CADnoob
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I vote for the method presented by @Valentin-WSP. One advantage is that you maintain the splnes. After 4 or 5 interations going from A to B, then B to A, etc. you will have a very accurate solution. It is the approach I would use in a LISP program if there was a need to create tanget lines to splines frequently.