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Map Grid

Figure D-28: Visualization Browser with
Map Grid Object Properties Displayed

Figure D-28: Visualization Browser with
Map Grid Object Properties Displayed

These properties control map grid object visualizations. For each property, the type of control and the values that can be assigned are listed. For a description of how a particular control is used, refer to Property Controls.

Table D-58: Property Settings for Map Grid 

Table D-58: Property Settings for Map Grid 
Name
Description
Automatic grid
Boolean: Automatically compute the grid range and spacing. Choose True or False. Default = True
Note - If a SAVE file is restored from an IDL version prior to 6.2, this property is set to False.
Longitude minimum (deg)
Number: Minimum longitude, in degrees, to include in the grid
Longitude maximum (deg)
Number: Maximum longitude, in degrees, to include in the grid
Latitude minimum (deg)
Number: Minimum latitude, in degrees, to include in the grid
Latitude maximum (deg)
Number: Maximum latitude, in degrees, to include in the grid
Longitude spacing
Number: Longitude grid spacing, in degrees
Latitude spacing
Number: Latitude grid spacing, in degrees
Longitude lines
User Defined: Click to edit individual or all longitude line properties. Click and Edit... to display the Map Grid Lines dialog.
Latitude lines
User Defined: Click to edit individual or all latitude line properties. Click and Edit... to display the Map Grid Lines dialog.
Color
Color: Color for the grid lines. Click to choose from the default color palette, or specify RGB values. Default = [0,0,0] (black)
Thickness
Line Thickness: Thickness for the grid lines. Select a thickness from the list. Default = 1
Transparency
Number: Transparency of the grid lines from 0% to 100%. Move the slider to change the value. Default = 0
Label
Boolean: Use labels on the grid lines. Choose True or False. Default = True
Label position
Number: Normalized label position. Default = 0.5
Use label color
Boolean: Use default color instead of Label color. Choose True or False. Default = False
Label color
Color: Color for the grid label. Click to choose from the default color palette, or specify RGB values. Default = [0,0,0] (black)
Label fill background
String List: Choose the kind of fill background for the label. Choose from these values:
  • None
  •  

  • View color
  •  

  • Fill color
Label fill color
Color: Color for the label background's fill. Click to choose from the default color palette, or specify RGB values. Default = [255, 255, 255] (white)
Text font
String List: Font used for label text. Select a font from the list. Choose from these values:
  • Helvetica
  •  

  • Courier
  •  

  • Times
  •  

  • Symbol
  •  

  • Hershey
Default = Helvetica
Text style
String List: Style used for label text. Select a style from the list. Choose from these values:
  • Normal
  •  

  • Bold
  •  

  • Italic
  •  

  • Bold italic
Default = Normal
Text font size
Number: Font size in points for the label text. Edit the number to change the size. Default = 12

The Map Grid Lines dialog displays a property sheet for the longitude or latitude lines, depending on which set you want to edit. This sheet includes the same properties as the overall Map Grid object, from Color to Text font size.

  IDL Online Help (March 01, 2006)