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How To apply identical colour zones to different Grids and Colour Legend Bar?

Elisabeth Poizat
  • Updated

Objective:

I'm making multiple grids and I want them all to have the same colours for given values. I also want the colour legend bars to be identical.

 

Resolution:

To create a colour zone file based on up to 5 existing grids:

  1. From the Grid and Image Menu click Display on Grid and select  Create Colour Zone File.
  2. Enter a name for the Output colour zone file.
  3. Specify up to 5 grids to be used to create a colour zone file.
  4. Specify the Contour interval.
  5. Select a Colour table file that has the colour range you want.
  6. Click OK to create a colour zone file using values from the grids you specified.

To display grids with the zone file you created:

  1. From the Grid and Image menu select Display on grid and click Grid.
  2. For Grid name, browse to the grid you would like to display.
  3. For Colours, click on the displayed colour bar and change the category to browse.
  4. Change the Files of Type to Colour Zones (*.zon).
  5. Ensure Colour method is set to the same option that was used when creating the colour zone file.
  6. Click New Map or Current Map depending on where you would like the grid to be displayed.

To create a colour zone file based on a single grid:

  1. With the grid displayed on a map, double-click the grid group in the View/Group Manager Tool to open the Colour Tool.
  2. Choose the Transform method you wish to use.
  3. Once the desired colouring scheme is achieved, this can be saved as a .zon file by clicking on the Save to file icon (Save as type Color Zones (*.zon)).
  4. Open this .zon file in a text editor and you can edit the values that will be associated with each colour level  then save your edits.
  5. Use the above "To display grids with the zone file..." steps to display a grid with this .zon file or while still in the colour tool click the Load from File button and select the zone file.

Notes:

  • Colour legend bars are based on the grids from which they are created. In order to change/set the colour legend bar, you must first set the grid colouring scheme as described above.
  • You can find more information on the Color Tool here.

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