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250 Chapter 12: Working with Contours 5. Select the Launch the gridding wizard radio button, then click OK. The IDL Gridding Wizard Step 1 of 3 dialog will appear. Figure 12-3: The IDL Gridding Wizard Step 1 of 3 The Gridding Wizard allows you to specify the method of gridding while showing you the possible results for that method. The IDL Gridding Wizard Step 1 of 3 dialog contains the following items: • Number of points entered • X Coordinates — X coordinate range • Y Coordinates — Y coordinate range • Data values — Data values are shown here • Spherical data checkbox — Check to make data spherical • Coordinate diagram — Shows coordinates of grid data • Show points checkbox — Select to show all points (default is checked) • Help — Obtain help on this dialog • Back — Return to previous step • Next — Proceed to Step 2 of 3 Displaying Contours iTool User’s Guide
