Data files for some examples
Example pages containing:
Plotting r,theta (radar) data
To plot (r,theta) data, you must convert the coordinates to a
cartesian space. NCL doesn't currently have the ability to plot
this kind of data directly.
: A simple example of
creating contours from (r, theta) coordinates. Note the calculations
that are done to create 2D coordinates in X and Y.
The first frame is done using raster fill (cnFillMode = "RasterFill"). The second
frame is done using cell fill (cnFillMode = "CellFill"), which allows
you to additionally set cnMissingValFillColor to fill the missing
value areas in some color.
: This is similar to
the first example on this page, but using a CF radial dataset.
: This example
shows how to create a radial background plot and then
attach different colored markers to it (using dummy data).
The main funtion for creating the radial plot is "radial_plot".
This function calls three different procedures for creating the radial
lines (add_radial_lines), the circles (add_radial_circles), and the
labels around the outer circle (add_radial_labels).
Note: this example may change if we get some better examples of
plotting radar data.
: This example uses a
modified version of map tickmarks to create a nice set of labels for a
It was contributed by Chris Fletcher from the University of Waterloo.
: This example shows
how to create a radar plot by plotting the random points using
raster-filled contours. It uses a color table
This example creates a panel plot where each plot uses a different
part of the colormap, via the use
This example was contributed by Qin Rui of the Beijing Weather