id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
4411	OMEdit 1.12 simulate fails with parameter but works when changed to constant	Vestal	Lennart Ochel	"Seems like a bug in verison 1.12.0 of 3 May 2017
{{{#!mo
model SpinArtistry
import Modelica.SIunits;
import Modelica.Mechanics.MultiBody.Frames.Orientation;
import Modelica.Mechanics.MultiBody.Frames.axisRotation;
import Modelica.Mechanics.MultiBody.Visualizers;
import Modelica.Mechanics.MultiBody.Frames;
import Modelica.Mechanics.MultiBody.Types.Color;
  // Running ""simulate"" on this model will result in a 
  // Translation Error ""The given system is mixed-determined.
  // [index > 3]""
  // If you comment/uncomment the following lines to change
  // the following declaration from a parameter to a constant,
  // it will succeed.
  parameter SIunits.AngularVelocity der_angle = 10.0;
  //constant SIunits.AngularVelocity der_angle = 10.0;

  //parameter Frames.Orientation Rtilt = Frames.axisRotation(3, -0.7, 0);
  constant Frames.Orientation Rtilt = Frames.axisRotation(3, -0.7, 0);
  SIunits.Angle angle;
  Frames.Orientation R;
     
initial equation
  angle = 0.0;
  R = Frames.absoluteRotation(Frames.Orientation(T=identity(3),w={0,der_angle,0}), Rtilt);
equation
  der_angle = der(angle);
  R = Frames.absoluteRotation(Frames.axisRotation(2, angle, der_angle), Rtilt);  
end SpinArtistry;
}}}"	defect	new	high	Future	Backend