I have created TriadManipulator, I can get translation with swManip.PreviousDragPoint and/or newPosMathPt.
but I cannot get the angle value.
Is there any way to get it?
The question is angle to what... There are XAxis, YAxis and ZAxis properties of TriadManipulator which are vectors. It will be up to you to do the math to compute the Angles you desire.
I looked at the XAxis values, but they do not change at (1, 0. 0), the others are the same...
Show your code
Can I get the value of ruller that indicates angle like attached image?
to get the X Y Z axis: 2015 SOLIDWORKS API Help - XAxis Property (ITriadManipulator)
to set: update the axis then call: 2015 SOLIDWORKS API Help - UpdatePosition Method (ITriadManipulator)
Retrieving data ...