====== Changing real parameters ======

CGRAPH offers an interactive method for changing an entered parameter. Each change is immediately reflected in the graph.

{{screen_EN:scr_ParameterReal.png}}

To change a parameter in the graphic, proceed as follows:

  - Click on the desired parameter in the tree view (red arrow). A field will then appear below the graphic, which can be used to change the parameter.
  - Use the slider (green arrow) to change the parameter within the limits shown in the two input fields to the left and right of the slider (blue arrows). The graphic is constantly recalculated and redrawn.
  - If the limits are not sufficient, you can enter other values. 
  - When you reach a limit, you can simply click on the parameter entry in the tree view (red arrow) again. The limits will then be reset, and the slider (and thus also the current parameter) will be centred between the limits again.

The current parameter is then displayed in both the tree view and the default page.