No, you are not missing anything. There is nothing like scale in GE - you change "altitude of the camera" over a sphere. It will never match *exactly* the scale of the chart in OpenCPN
. Actually the best we can do (as the chart and GE views can and usually also do have different geometry) is what we do now - try to cover the same area as the chart covers (Yes, I did try several other concepts while developing the plugin and they all worked worse than this one).
If you want charts
created from GE, use GE2KAP, the purpose of this plugin is simply something slightly different.