How can I assign a fill to a specific value in Grapher?

Grapher offers a number of plot fill options.  You can fill above or below a plot or between two plots.  You can also define a cutoff value for the fill.  A fill with cutoff value can be used to highlight data that is above or below a threshold. To define a cutoff value for the fill in Grapher, follow the steps below.
  1. Create a line plot by clicking the Home | New Graph | Basic | Line Plot command.
  2. Select your data file and click Open

Line plot created in Grapher, displaying no fill.

  1. Click on the plot in the Object Manager to select it.
  2. In the Property Manager, click the Fill tab.
  3. Change the Pattern from None to Solid or the desired pattern.
  4. Set the Foreground color as desired.
  5. Change the Direction, if desired.
  6. Change the Cutoff value by highlighting the existing value and typing a new value. 
  7. The graph updates to show the fill in only the portion of the plot that fits the Direction and Cutoff.


Grapher line plot with fill to cutoff of -50

Line plot created in Grapher showing a fill to the cutoff value of -50.


Updated September 21, 2018

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