[idvusers] point data air pressure-->altitude

Hi,

I was wondering if anyone knows how to convert pressure values in a text point 
data object to altitude? Attached is wind vector data with the coordinates of 
lat, lon, pressure and I wish to use pressure as a vertical coordinate when 
plotting the winds, but currently pressure is not being used as a vertical 
coordinate in the display.    

Attachment: AMV201305201702_2
Description: Binary data


Thanks in advance for any help.

Joleen