How to scale rotate dwg data using four reference points?

[ssharma_panindia]

Hi guys please suggest how can we scale rotate the data using four reference point?

[imadHabash]

Hi and Welcome to AutoCAD Forum,

Would you please show us your CAD case, You may get more than answer.

[Valentin-WSP]

@ssharma_panindia ,

This may help - see the second video in this link:

• Rotate and Scale Objects by Reference | Autodesk

[Pointdump]

Hi @ssharma_panindia,
Welcome to the Autodesk Forums.
More details please. Screen shots or even post your drawing.
Dave

[cadffm]

Hi,

4 in a 3(D) world!?

Do you mean 2 ppints? 2 source and two target point = 4 ?

Use command ALIGN and skip the 3rd point

[autoid374ceb4990]

Sounds like you are looking for a least squares type fit where you have a set of control points and a set of reference points to be "fitted" into the control points.  Many years ago I was in the land surveying business and I wrote such a routine, but it was just for points, not entities like LINEs, PLINEs, etc.  Do you have 4 control points and 4 reference points?  How far different are the control and reference points?  Do you want to adjust more than AutoCAD POINTs?