How can I get Euler angles from a transformation matrix?

.GetYawPitchRoll returns a boolean, you need to use “out” to get your values. private void RunScript(Transform Matrice, ref object Yaw, ref object Pitch, ref object Roll) { double yaw, pitch, roll; bool success = Matrice.GetYawPitchRoll(out yaw, out pitch, out roll); Yaw = yaw; …

[2021-08-22 12_33_08-Window] [2021-08-22 12_33_20-Window] [2021-08-22 12_33_38-Window] …typo?

Lo stesso degli altri che non ho specificato. Var?

[image] @dale , Why are the extracted angles not the starting ones?

Hello If you want an answer it is surely best to post the script. Because at first glance I shall say you have done an error. Euler angles are tricky.

[image] laurent_delrieu: Euler angles are tricky. Not at all (anyway there’s tons of related literature around). [Mike] Conversion euler to matrix and matrix to euler c#, math, matrix, 3d asked by Mike on 12:43AM - 04 Jan 10 UTC …

Hello Peter I am doing 6 dof simulations. Yes angles are tricky because if you use matrix quaternions … order of rotations are not always the same. Sometime Yaw * Pitch * Roll And sometime Roll * Pitch * Yaw. So an error in the order brings error at the end …

Euler Angles

Grasshopper

dale (Dale Fugier) August 18, 2021, 10:52pm 2

Hi @AmicoCAD,

Use either Transform.GetYawPitchRoll or Transform.GetEulerZYZ.

– Dale

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Euler Angles

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