Is it possible to pass/transform an ACT result to a local coordinate system?

Chemsdine CHEMAI

Is it possible to pass/transform an ACT result to a local coordinate system?

Chemsdine CHEMAI

Yes, one can use the commands Vector3D() et Matrix4D(), 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

Rohith Patchigolla

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?