package BondGraphLib2D

    connector BondPort "Bond graph 2D multibond power port"
        Real e[2] "Effort vector";
        flow Real f[2] "Flow vector";annotation(
        Icon(graphics = {Rectangle(lineColor = {0, 85, 0}, fillColor = {0, 85, 0},fillPattern = FillPattern.Solid, extent = {{-60, 60}, {60, -60}})}));
    end BondPort;

    model J1 "Bond graph 2D 1-junction (common flow, efforts sum to zero)"
        parameter Integer N(min=1) = 2 "# of power ports";
        parameter Real s[N] = fill(1.0, N)
        "Bond orientation signs used in the effort balance";
        BondPort P[N] "Power ports" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(extent = {{-10, -10}, {10, 10}})));
        Real f[2];
    equation
        // Efforts sum to zero, with signs from bond directions
        for j in 1:2 loop
            sum(s[i] * P[i].e[j] for i in 1:N) = 0;
        end for;

        // Flows are all equal
        for i in 2:N loop
            P[i].f = P[i-1].f;
        end for;
        f = P[1].f;
        annotation(
        Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "1", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end J1;

    model J0 "Bond graph 2D 0-junction (common effort, flows sum to zero)"
        parameter Integer N(min=1) = 2 "# of power ports";
        parameter Real s[N] = fill(1.0, N)
        "Bond orientation signs used in the effort balance";
        BondPort P[N] "Power ports" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(extent = {{-10, -10}, {10, 10}})));
        Real e[2];
    equation
        // Flows sum to zero, with signs from bond directions
        for j in 1:2 loop
            sum(s[i] * P[i].f[j] for i in 1:N) = 0;
        end for;

        // Efforts are all equal
        for i in 2:N loop
            P[i].e = P[1].e;
        end for;
        e = P[1].e;
        annotation(
        Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "0", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end J0;

    partial model OnePortPassive "One-port passive 2D multibond element"
        BondPort p "Generic power port" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(extent = {{-10, -10}, {10, 10}})));
    end OnePortPassive;

    partial model OnePortEnergetic "One-port 2D multibond storage element"
        extends OnePortPassive annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {0, 80}, extent = {{-10, -10}, {10, 10}})));
        Real state[2] "Conserved quantity";
    end OnePortEnergetic;

    model C "Bond graph 2D C element"
        extends OnePortEnergetic(state(start=q0, each fixed=true));
        parameter Real c[2,2] = [1, 0; 0, 1] "Capacitance matrix inverse denominator form";
        parameter Real q0[2] = {0, 0} "Initial stored quantity (charge)";
    equation
        der(state) = p.f;
        c * p.e = state;
        annotation(
        Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "C", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end C;

    model I "Bond graph 2D I element"
        extends OnePortEnergetic(state(start=p0, each fixed=true));
        parameter Real I[2,2] = [1, 0; 0, 1] "Inertance / inductance / mass matrix";
        parameter Real p0[2] = {0, 0} "Initial stored quantity (momentum / flux)";
    equation
        der(state) = p.e;
        I * p.f = state;
        annotation(
        Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "I", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end I;

    model R "Bond graph 2D resistor"
        extends OnePortPassive;
        parameter Real R[2,2] = [1, 0; 0, 1] "Resistance matrix";
    equation
        p.e = R * p.f;
        annotation(
        Icon(graphics = {Text(extent = {{-100, 100}, {100, -100}}, textString = "R", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end R;

    model Se "Effort source"
        BondPort p annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        input Real e0[2] "Imposed effort";
    equation
        p.e = e0;
        annotation(
        Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "Se", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end Se;

    model Sf "Flow source"
        BondPort p annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        input Real f0[2] "Imposed flow";
    equation
        p.f = f0;
        annotation(
        Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "Sf", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end Sf;

    model TF "Bond graph 2D transformer"
        BondPort p1 "Port 1" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
        BondPort p2 "Port 2" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));

        parameter Real n[2,2] = [1, 0; 0, 1] "Transformer ratio matrix";
    equation
        p1.e = n * p2.e;
        transpose(n) * p1.f = p2.f;
        annotation(
        Icon(graphics = {Text(extent = {{-80, 100}, {80, -100}}, textString = "TF", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end TF;

    model GY "Bond graph 2D gyrator"
        BondPort p1 "Port 1" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
        BondPort p2 "Port 2" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        parameter Real r[2,2] = [1, 0; 0, 1] "Gyrator modulus matrix";
    equation
        p1.e = r * p2.f;
        p2.e = transpose(r) * p1.f;
        annotation(
        Icon(graphics = {Text(extent = {{-80, 100}, {80, -100}}, textString = "GY", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end GY;

    model mSe "Bond graph modulated effort source"
        BondPort p annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        Modelica.Blocks.Interfaces.RealInput e0[2] "Imposed effort" annotation(
        Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));

    equation
        p.e = e0;
        annotation(
        Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "mSe", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end mSe;

    model mSf "Bond graph modulated flow source"
        BondPort p annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        Modelica.Blocks.Interfaces.RealInput f0[2] "Imposed flow" annotation(
        Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));

    equation
        p.f = f0;
        annotation(
        Icon(graphics = {Text(origin = {-20, 0}, extent = {{-80, 100}, {80, -100}}, textString = "mSf", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end mSf;

    model mTF "Bond graph modulated transformer"
        BondPort p1 "Port 1" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
        BondPort p2 "Port 2" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        Modelica.Blocks.Interfaces.RealInput m[2,2] "Modulation" annotation(
        Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
    equation
        p1.e = m * p2.e;
        transpose(m) * p1.f = p2.f;
        annotation(
        Diagram(graphics),
        Icon(graphics = {Text(extent = {{-60, 100}, {60, -100}}, textString = "mTF", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end mTF;

    model mGY "Bond graph modulated gyrator"
        BondPort p1 "Port 1" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
        BondPort p2 "Port 2" annotation(
        Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
        Modelica.Blocks.Interfaces.RealInput m[2,2] "Modulation" annotation(
        Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
    equation
        p1.e = m * p2.f;
        p2.e = transpose(m) * p1.f;
        annotation(
        Diagram(graphics),
        Icon(graphics = {Text(extent = {{-60, 100}, {60, -100}}, textString = "mGY", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
    end mGY;

    package TransRotUtils

        model mTFrot2lin
            BondGraphLib.BondPort pR annotation(
            Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
            BondPort pT annotation(
            Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
            parameter Real r_body[2] = {1,0};
        protected
            Real B[2];
        equation
            B = {-r_body[2], r_body[1]};
            pT.f = B * pR.f;
            pR.e = B[1]*pT.e[1] + B[2]*pT.e[2];
            annotation(
            Icon(graphics = {Text(extent = {{-70, 100}, {70, -100}}, textString = "rlTF", textStyle = {TextStyle.Bold, TextStyle.UnderLine})}));
        end mTFrot2lin;

        model rTF
            BondPort p1 "Port 1" annotation(
            Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-80, 0}, extent = {{-10, -10}, {10, 10}})));
            BondPort p2 "Port 2" annotation(
            Placement(transformation(origin = {-44, 18}, extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {80, 0}, extent = {{-10, -10}, {10, 10}})));
            Modelica.Blocks.Interfaces.RealInput phi "angle" annotation(
            Placement(transformation(origin = {-8, -64}, extent = {{-20, -20}, {20, 20}}), iconTransformation(origin = {0, -78}, extent = {{-8, -8}, {8, 8}}, rotation = 90)));
        protected
            Real R[2,2];
        equation
            R = [cos(phi), -sin(phi);
            sin(phi), cos(phi)];
            p1.e = R * p2.e;
            transpose(R) * p1.f = p2.f;
            annotation(
            Diagram(graphics),
            Icon(graphics = {Text(extent = {{-60, 100}, {60, -100}}, textString = "rTF", textStyle = {TextStyle.Bold, TextStyle.UnderLine}) }));
        end rTF;

    end TransRotUtils;

    annotation(
    Icon(graphics = {Text(origin = {50, 0}, extent = {{-50, 100}, {50, -100}}, textString = "R", textStyle = {TextStyle.Bold}), Line(origin = {-45.22, 20.19}, points = {{-58.7774, -20.1934}, {21.2226, -20.1934}, {-38.7774, 19.8066}}, thickness = 5), Line(origin = {-9.81, -8.19}, points = {{-10.1934, 48.1934}, {-10.1934, -31.8066}}, thickness = 5), Line(origin = {-78, 16}, points = {{-26, 0}, {30, 0}}, thickness = 5)}),
    uses(Modelica(version = "4.1.0")),
    Diagram(graphics));
end BondGraphLib2D;