Is it possible to pass/transform an ACT result to a local coordinate system?
Chemsdine CHEMAI
Member, Employee Posts: 201
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Best Answer

Yes, one can use the commands
Vector3D()
etMatrix4D()
, here is an example from the solution 2042686 (from the customer portal) :def EvalResult(result, stepInfo, collector): step = stepInfo.Set nodeIds = collector.Ids analysis = result.Analysis reader = analysis.GetResultsData() reader.CurrentResultSet = step deformation = reader.GetResult("U") fromUnit = deformation.GetComponentInfo("X").Unit # Unit of Length when the solution was solved toUnit = "m" # Always generate the result to display in SI unit convFact = units.ConvertUnit(1, fromUnit, toUnit, "Length") # conversion factor # get selected coordinate system info csM = result.Properties["CoordinateSystem"].Value csXAxis = csM.XAxis csYAxis = csM.YAxis csZAxis = csM.ZAxis xAxis = Vector3D(csXAxis[0], csXAxis[1], csXAxis[2]) yAxis = Vector3D(csYAxis[0], csYAxis[1], csYAxis[2]) zAxis = Vector3D(csZAxis[0], csZAxis[1], csZAxis[2]) # create matrix transformation idM = Matrix4D() transM = idM.CreateSystem(xAxis,yAxis,zAxis) transM.Transpose() for nId in nodeIds: defArr = deformation.GetNodeValues(nId) vect = Vector3D(defArr[0], defArr[1], defArr[2]) # convert vector using transform matrix vectTrans = transM.Transform(vect) collector.SetValues(nId, [vectTrans[0]*convFact]) return
4
Answers

Hi @Chemsdine CHEMAI, this seems to work only when the target coordinate system has the same origin as the global csys. Is it possible to expand this when the origins are different?
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