ContinuousClock

block ContinuousClock "Generate current time signal"
    extends Interfaces.SignalSource;
equation
    y = offset + (if time < startTime then 0 else time - startTime);

    annotation (
        Icon(
            coordinateSystem(
                preserveAspectRatio = true,
                extent = {
                    {-100, -100}, 
                    {100, 100}}),
            graphics = {
                Ellipse(
                    extent = {
                        {-80, 80}, 
                        {80, -80}},
                    lineColor = {160, 160, 164}), 
                Line(
                    points = {
                        {0, 80}, 
                        {0, 60}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {80, 0}, 
                        {60, 0}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {0, -80}, 
                        {0, -60}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {-80, 0}, 
                        {-60, 0}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {37, 70}, 
                        {26, 50}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {70, 38}, 
                        {49, 26}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {71, -37}, 
                        {52, -27}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {39, -70}, 
                        {29, -51}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {-39, -70}, 
                        {-29, -52}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {-71, -37}, 
                        {-50, -26}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {-71, 37}, 
                        {-54, 28}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {-38, 70}, 
                        {-28, 51}},
                    color = {160, 160, 164}), 
                Line(
                    points = {
                        {0, 0}, 
                        {-50, 50}},
                    thickness = 0.5), 
                Line(
                    points = {
                        {0, 0}, 
                        {40, 0}},
                    thickness = 0.5), 
                Text(
                    extent = {
                        {-150, -150}, 
                        {150, -110}},
                    textString = "startTime=%startTime")}),
        Documentation(info = "<html>\n<p>\nThe Real output y is a clock signal:\n</p>\n\n<p>\n<img src=\"modelica://Modelica/Resources/Images/Blocks/Sources/ContinuousClock.png\"\n     alt=\"ContinuousClock.png\">\n</p>\n</html>"));
end ContinuousClock;