addcmd: in, optional, type=boolean, default=0
If this keyword is set, the object is added to the resizeable graphics
window, cgWindow. Note that a map projection command must be added to the
window before this command is added to be effective.
bcolor: in, optional, type=string, default='opposite'
The name of the color to draw box axes with.
bthick: in, optional, type=float
The thickness of the box axes in device units.
blabel: in, optional, type=float, default=0
Set this keyword to 0 to label all four of the box axes.
Set this keyword to 1 to label the left and bottom box axes only.
Set this keyword to 2 to label the top and right box axes only.
box_axes: in, optional, type=boolean, default=0
Set this keyword to draw box axes on the map projection.
cggrid: in, optional, type=boolean, default=0
Set this keyword to allow the latitude and longitude values to be set by
the LatLon_Labels method in the cgMap object. Previously this was used by
default, but it caused a lot of problems with global or near global map projections.
This really should be used ONLY if you are mapping a very small region of the Earth,
and maybe if you are using a UTM map projection. Othersize, it is probably not
needed, so I have made it an optional choice.
charsize: in, optional, type=float
The character size for the labels. Default is cgDefCharSize()*0.75.
clip_text: in, optional, type=boolean, default=1
Set this keyword to a zero value to turn off clipping of text labels.
By default, text labels are clipped. This keyword is ignored if the `Box_Axes`
keyword is set.
color: in, optional, type=string, default='opposite'
The name of the drawing color for the program.
fill_horizon: in, optional, type=boolean, default=0
format: in, optional, type=string
Set this keyword to a format for the grid labels.
fuzzy: in, optional, type=float, default=0.0
This keyword applies only if the MAP_STRUCTURE keyword is used. Set the
keyword to a value that is a percentage of the current data range.
This percentage of the range is added to or subtracted from the
values used to determine if the label is "inside" the boundary.
It allows you to be a little less exact when selecting inside
points. There are occasional aesthetic reasons for allowing fuzzy
boundaries. A reasonable value for fuzziness might be 0.0125.
glinestyle: in, optional
Not used. Use `Linestyle` instead.
glinethick: in, optional
Not used. Use `Thick` instead.
horizon: in, optional, type=boolean, default=0
Set this keyword to draw the current map horizon.
increment: in, optional, type=integer, default=4
Determines the smoothness of graticle lines by setting the spacing between
them. A low number is a smooth number.
label: in, optional, type=integer, default=0
An number that tells how to label the grid line. A 0 means no grid lines are
labelled. A 1 means all grid lines are labelled. A 2 means label every 2nd
grid line is labelled. A 3 means every 3rd grid line is labelled, and so on.
label_with_degree: in, optional, type=boolean, default=0
Set this keyword to expand the labels with "degrees N/S/W/E" (i.e., $\deg$?).
latalign: in, optional, type=float, default=0.0
This keyword controls the alignment of the text baseline for latitude labels.
A value of 0.0 left justifies the label, 1.0 right justifies it, and 0.5
centers it. This keyword is ignored if the `Box_Axes` keyword is set.
latdelta: in, optional, type=float
Set this keyword to the spacing in degrees between parallels of latitude in
the grid. If this keyword is not set, a suitable value is determined from the
current map projection.
latlabel: in, optional, type=float
The longitude at which to place latitude labels. The default is the center
longitude on the map if using Map_Set, and a longitude line on the left of the
plot if using Map_Proj_Init. This keyword is ignored if the `Box_Axes` keyword is set.
latnames: in, optional, type=string
Set this keyword equal to an array specifying the names to be used for the
latitude labels. By default, this array is automatically generated in units
of degrees. The LATNAMES array can be either type string or any single numeric
type, but should not be of mixed type. When LATNAMES is specified, the LATS
keyword must also be specified. The number of elements in the two arrays need
not be equal. If there are more elements in the LATNAMES array than in the LATS
array, the extra LATNAMES are ignored. If there are more elements in the LATS
array than in the LATNAMES array, labels in degrees will be automatically
provided for the missing latitude labels. The LATNAMES keyword can be also used
when the LATS keyword is set to a single value. It this case, the first label
supplied will be used at the specified latitude; subsequent names will be
placed at the next latitude line to the north, wrapping around the globe if
appropriate. Caution should be used when using LATNAMES in conjunction with a
single LATS value, since the number of visible latitude gridlines is dependent
on many factors.
lats: in, optional, type=float
Set this keyword equal to a one or more element vector of latitudes for which
lines will be drawn (and optionally labeled). If LATS is omitted, appropriate
latitudes will be generated based on the value of the (optional) LATDEL keyword.
If LATS is set to a single value, that latitude and a series of automatically
generated latitudes will be drawn (and optionally labeled). Automatically generated
latitudes have values that extend over the map. If LATS is a single value, that
value is taken to be the starting point for labelling (See the LABEL keyword).
lcolor: in, optional, type=string
Set this to the name of the label color to use in labeling grid lines.
By default, the same as COLOR, or if BOX_AXIS is set, then same as BCOLOR.
linestyle: in, optional, type=integer, default=1
This keyword is the same as the GLineStyle keyword, but is a more
natural way of setting the value.
lonalign: in, optional, type=float, default=0.0
This keyword controls the alignment of the text baseline for longitude labels.
A value of 0.0 left justifies the label, 1.0 right justifies it, and 0.5
centers it. This keyword is ignored if the `Box_Axes` keyword is set.
londelta: in, optional, type=float
Set this keyword to the spacing in degrees between parallels of longitude in
the grid. If this keyword is not set, a suitable value is determined from the
current map projection.
lonlabel: in, optional, type=float
The latitude at which to place longitude labels. The default is the center
longitude on the map if using Map_Set, and a longitude line on the left of the
plot if using Map_Proj_Init. This keyword is ignored if the `Box_Axes` keyword is set.
lonnames: in, optional, type=string
Set this keyword equal to an array specifying the names to be used for the
longitude labels. By default, this array is automatically generated in units
of degrees. The LATNAMES array can be either type string or any single numeric
type, but should not be of mixed type. When LATNAMES is specified, the LATS
keyword must also be specified. The number of elements in the two arrays need
not be equal. If there are more elements in the LATNAMES array than in the LATS
array, the extra LATNAMES are ignored. If there are more elements in the LATS
array than in the LATNAMES array, labels in degrees will be automatically
provided for the missing longitude labels. The LATNAMES keyword can be also used
when the LATS keyword is set to a single value. It this case, the first label
supplied will be used at the specified longitude; subsequent names will be
placed at the next longitude line to the north, wrapping around the globe if
appropriate. Caution should be used when using LATNAMES in conjunction with a
single LATS value, since the number of visible longitude gridlines is dependent
on many factors.
lons: in, optional, type=float
Set this keyword equal to a one or more element vector of longitudes for which
lines will be drawn (and optionally labeled). If LATS is omitted, appropriate
longitudes will be generated based on the value of the (optional) LATDEL keyword.
If LATS is set to a single value, that longitude and a series of automatically
generated longitudes will be drawn (and optionally labeled). Automatically generated
longitudes have values that extend over the map. If LATS is a single value, that
value is taken to be the starting point for labelling (See the LABEL keyword).
map_structure: in, optional
This keyword is normally used to pass in a map structure of the type
created by Map_Proj_Init. In this version of the program, it can also
be used to pass in a cgMap object, from which the map structure and other
pertinent information for creating map grid lines can be obtained.
noclip: in, optional, type=boolean, default=0
Normally, output is clipped to the map projection boundaries. Set this keyword
to be able to draw outside the map boundaries.
no_grid: in, optional, type=boolean, default=0
Set this keyword if you only want labels but not grid lines.
orientation: in, optional, type=float, default=0.0
Set this keyword equal to an angle in degrees from horizontal (in the clockwise
direction) to rotate the labels. This keyword is ignored if the `Box_Axes` keyword is set.
t3d: in, optional, type=boolean, default=0
Set this keyword if you are labeling in 3D space.
thick: in, optional, type=integer, default=!P.Thick
Sets the thickness of the grid lines.
zvalue: in, optional, type=float
Draw the grid lines at this Z-value. Implies the use of `T3D`.