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ID Project Category View Status Date Submitted Last Update 0000508 FreeCAD Bug public 2011-12-04 15:54 2011-12-05 14:42 tilas normal minor always closed fixed 0.13 0000508: Part: Parameterized Primitive: Plane - new planes with normals x or y are placed wrong The new plane definition requires the normal direction, coordinates of the origin and length width dimensions. The coordinates accept both positive and negative values whereas the L&W only positive. IMHO, it is expected that the L&W grow in the corresponding positive directions. Example: plane with normal "z", Origin at (-5,-5,0) and W=10, L=10 is placed at -5

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 2011-12-05 13:41 administrator   ~0001396 Last edited: 2011-12-05 13:42 It appeared to be a matter of the internally calculated placement, especially its rotation part. The point is mathematically there is not a unique rotation that describes a rotation from (0,0,1) to (1,0,0). The most obvious way is to rotate around the y-axis by 90 deg. But obviously this leads to this "misbehaviour" of the plane. The correct way is to do it exactly the same way as with the sketcher drawing plane. So, in this case it's the rotation around (1,1,1) by 120 deg. 2011-12-05 14:42 administrator   ~0001397 Fixed in 5221