It also shows how to C use the NhlDataPolyline and NhlDataPolymarker routines C to draw lines and markers on a map projection. This example uses the AnnoManager class to label each C of the United States with a two-letter mnemonic. The C labeling is not done in the map projection, however, C so the text is not part of the map. C C Define arrays to hold a list of two-character mnemonics C for the states, and the latitude and longitude of a point where the C mnemonic may be placed to label the state. C C Define the state-labelling data.
C C Create an application object.
C C Modify the color map. Colors for contour fill areas varying from C blue to red. We don't want to draw C any contour lines outside of this circle. C C AnnoManager objects allow the PlotManager to manipulate any View C class object as an annotation a uniform fashion. They allow C the user to set the View object's size and location relative to C the viewport of a Plot.