Hi,
DNC is based on VPF format.
http://msi.nga.mil/NGAPortal/DNC.portal;jsessionid=v7pkSThJG9vQcrQ0yTwLxTL1hQmyhGbFJQLZCJTW5dGJJjT0GmJX!1413119135!NONE?_nfpb=true&_st=&_pageLabel=dnc_portal_page_70&faqCode=02
The styling is defined by a different standard as a set of geosym rules.
Regards
Damia
Hi,
If you have a link to the charts, I could look at it and see the format and see
if they are georeferenced (if coordinates like longitude and latitudes is
included in the image file). They should be. If so, I would recommend you use
a GIS software like QGIS to visualise the maps and manip