topic Re: Rotation around x axis in .NET Forum

Rotation around x axis

BestFriendCZ — Mon, 18 Mar 2019 11:00:17 GMT

Hi all,

is there easy way how to get rotation around X axis?
My function returns rotation around Z axis (same rotation shows ACAD) but i don't know how to convert to different axis like X or Y

Re: Rotation around x axis

_gile — Mon, 18 Mar 2019 11:52:12 GMT

Hi,

If the block reference have only been rotated about the X axis, you can computr the rotation about the X axis of the block reference from its BockTransform.CoordinateSystem3d.YAxis.

Vector3d yAxis = br.BlockTransform.CoordinateSystem3d.Yaxis;
double rotationX = Math.Atan2(yAxis.Z, yAxis.Y);

If the block reference have been rotated about more than one axis, the rotations about each axis might be described by the Euler angles. But the rotation about one axis may differ according to the "order the rotations occured".

You can see this topic about Euler angles and BlockRefence.BlockTransform.

Re: Rotation around x axis

BestFriendCZ — Tue, 19 Mar 2019 10:08:32 GMT

Thank you for your advice Gile