Plotter helper

The plotter helper is for plotting graphs of one or more variables
against time.

Clearing the display

To remove all the plotted data, click on the button.

Selecting elements to plot

One or more elements can be added to the graph.

• to add an element, click on the button. An instruction is then posted to
  click on the model element to be plotted. This can be on the model diagram
  or in the model explorer.

• to remove an element, click on the button. An instruction is then posted to
  click on the element to be removed, in the legend of the graph.

Range selection

The range displayed on each axis of the graph can be controlled by
simple dragging movements. The range is a function of both how large the
difference between maximum and minimum is, and what the minimum is.
Accordingly, the y-axis can be panned up or down and the x-axis panned left
or right to display different parts of the axis at the same magnification,
whilst both axes can also be zoomed in or out to increase or decrease the
magnification.

• The
  cursor takes on the shape of a four-headed arrow when placed over a scale
  point. Dragging a scale point alters the range displayed by zooming in or
  out. To zoom in, drag the scale points away from the origin, i.e. to the
  right (on the x-axis) or upwards (on the y-axis). To zoom out, drag the
  scale points towards the origin, i.e. to the left (on the x-axis) or
  downwards (on the y-axis).

• The
  cursor takes on the shape of a two-headed arrow when placed over the axis
  itself. Dragging the axis alters the range displayed by panning up or
  down, left or right.

In: Contents >> Running models >> Working with helpers