Which are the formats that NoniGPSPlot can use as map?
NoniGPSPlot uses maps bitmap format.
One needs Alors 2 files:
A file for the image with the format
JPG
GIF
BMP (8 ou 16Millions of colors not compressed)
A file to define geographical information of the image (file of calibration) in the format
MAP (OziExplorer)
You can also directly enter this information in NoniGPSPlot but it's pretty heavy.
Could I use the maps another navigator? (Tomtom, Destinator, Georando etc...)
Not.
Usually, the maps are safeguarded in formats owners and I cannot read them.
Unless you do not have a means of converting them.
It seems to me that this is possible with OziExplorer.
Could I use a chart paper?
Normally, yes.
The charts will have to be digitized (with a scanner or other) to obtain the file image
Then it will be necessary to create a file of calibration (for example with eMapZone as explained here)