q w2xy - example needed

[Vladimir V. Corvus]

Hi !

I needed to example using 'q w2xy' function.

I want output to plots separate values for some geographic points.

For example, i create shaded temperature plots, i want additionaly
output on this plot some numeric value (as "+10") for several cities
with definite world coordinates.

Thank's.

Vladimir V. Corvus, Samara, Russia.