Operating system: windows 7 Slicer version: 4.8.1 Expected behavior: Actual behavior: Hello, I create a needle model to insert it to a specific region in my 3D model in slicer. This way, the position of the needle tip and the orientation of the needle is important. The desired pose of the needl…

As I wrote above, there is a mistake in how the B (fromParent_LPS) matrix is constructed in your example above. The correct fromParent_LPS matrix looks something like this: [[ -0.65 -0.44 0.62 -107.59] [ 0.62 0.15 0.76 -227.31] [ -0.43 0.89 0.18 -88.75] [ 0. 0. …

Rotation matrix from the Transform Module

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lassoan (Andras Lasso) June 10, 2019, 1:25pm 2

See this topic for explanation and solution: Saving Linear Transformation Matrix

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Rotation matrix from the Transform Module

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