| iTool User's Guide: Visualization Properties |

## Vector

Figure D-17: Visualization Browser with Vector Properties Displayed

Figure D-17: Visualization Browser with Vector Properties Displayed

These properties control vector 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-47: Vector Properties

Table D-47: Vector Properties
Property | Control Type: Values
--- | ---
Grid units | String List: Set grid units type. Choose from: Not applicable Meters Degrees Default = Not applicable
Vector style | String List: Set vector style type. Choose between these values: Arrows Wind barbs Default = Arrows
Length scale | Number: Length. Enter value. Default = `1`
Head size | Number: Head size. Enter value. Default = `1`
Arrow style | String List: Set arrow style type. Choose between these values: Lines Filled Default = Filled
Proportional heads | Boolean: Make arrow heads proportional? Choose True or False. Default = False
Arrowhead angle | Number: Arrowhead angle value. Enter value. Default = `30`
Arrowhead indentation | Number: Arrowhead indentation value. Enter value. Default = `0.4`
Arrow thickness | Number: Arrow thickness level. Choose value 1 through 10. Default = `2`
Line thickness | Number: Line thickness level. Choose value 1 through 10. Default = `1`
Data location | Boolean: Select location along arrow for data. Choose Tail, Center, or Head. Default = Center
Automatic color | Boolean: Select color setting. Choose None, Magnitude, or Direction. Default = Magnitude
Color | Color: Color for arrows. Click to choose from the default color palette, or specify RGB values. Default = `[0,0,0]` (black)
Color palette | Color: By selecting Edit color table Edit`` access the color table to manipulate vector color values Note - To edit the opacity only in the editor, uncheck the R, G, and B boxes in both the Modify and Display rows. Edit the remaining line by clicking on and dragging the line in the window. Click OK when finished.
Transparency | Number: Percent transparency. Move slider to change value. Default = `0`
Minimum magnitude | Number: minimum magnitude. Enter value. Default = None
Maximum magnitude | Number: maximum magnitude. Enter value. Default = None
Z value | Number: Z value of plane on to which to project the vector visualization. Edit the number to change the value. Note - If the Z value is zero then the vector visualization is considered to be 2D. If the Z value is nonzero, then the vector visualization is considered to be 3D, and the dataspace associated with this vector will be automatically switched to 3D. Default = `0`
Automatic subsampling | Boolean: Automatically subsample the vector visualization? Choose True or False. Default = False
Subsampling method | String List: Set subsample type. Choose between these values: Nearest neighbor Linear Default = Nearest neighbor
X subsampling factor | Number: Subsample factor in the x direction. Default = `1`
Y subsampling factor | Number: Subsample factor in the y direction. Default = `1`
Mark missing points | Boolean: Automatically mark missing points? Choose True or False. Default = False
Direction convention | Boolean: Choose direction convention. Select Polar, Meteorological, or Wind azimuths. Default = Polar (counterclockwise from X axis)

IDL Online Help (March 01, 2006)