addcmd: in, optional, type=boolean, default=0
If this keyword is set, the object is added to the resizeable graphics
window, cgWindow. The DRAW method of the object is called in cgWindow.
clip: in, optional, type=fltarr(4)
The coordinates of a rectangle used to clip the graphics output.
The rectangle is specified as a vector of the form [X0, Y0, X1, Y1],
giving coordinates of the lower left and upper right corners,
respectively. The default clipping rectangle is the plot window set
up by the cgMap object.
color: in, optional, type=string, default="opposite"
The name of the color to draw the grid lines in.
hsize: in, optional, type=float, default=0.35
The value of this keyword sets the length of the arrowhead. See the documenation
for the ARROW command ind IDL for further explanation.
lats: in, optional, type=float
The latitude values where the vector is to be drawn.
length, in, optional, type=float
The U and V vectors are mutiplied by LENGTH before they are used
to calculate the (x1,y1) endpoint of the vector. By default, the length is set
to 1/100th of the XRANGE of the MapCoord object. This means that the maximum
length of a vector will be approximately LENGTH * SQRT(2).
linestyle: out, optional, type=integer, default=1
Set this keyword to the type of linestyle desired. See Graphics Keywords in
the on-line help for additional information.
lons: in, optional, type=float
The longitude values where the vector is to be drawn.
noclip: in, optional, type=boolean, default=0
Set this keyword to supress clipping of the plot.
mapcoord: in, optional, type=object
The map coordinate for the object.
palette: in, optional, type=byte
A (256x3) color palette containing the RGB color vectors to use for coloring the vectors
according to the magitude of the vectors. If the color palette is not 256 colors in length
then the magitude is scaled into the number of colors available. If a color palette is
used, then the `Color` keyword is ignored.
solid: in, optional, type=boolean, default=0
Set this keyword to draw solid arrow heads.
t3d: in, optional, type=boolean, default=0
Set this graphics keyword if you wish to draw using the T3D transformation matrix.
thick: in, optional, type=integer, default=1
Set this keyword to the thickness of the line used to draw the grid.
umagnitude: in, optional, type=float
The magnitude of the vector in the U direction.
uvcoords: in, optional, type=boolean, default=0
Set this keyword if the LONS and LATS are specified in UV (XY) coordinates, rather than
longitude and latitude coordinates.
vmagnitude: in, optional, type=float
The magnitude of the vector in the V direction.
zvalue: in, optional, type=float, default=0.0
Set this keyword to the ZVALUE where the output should be drawn.
_extra: in, optional
Any keywords appropriate for superclass objects are also permitted.
is is the clean-up routine for the object.
is is the class definition module.