I would like to create a 3meter x 3meter Raster Grid on a Worldmap in QGIS. I am fairly new to the whole topic but I have found out that the equirectangular projection should be the most accurate, like displayed here
I am currently using MMQGIS to draw grids but I have problems finding the right granularity and rendering it on the whole map. How can I make sure I am getting 3mx3m grids and which world map should I download?
I later want to index each rectangle and from my calculations there should be about 57 Trillion is that correct?
510 * 10^14 (size of world) / 9m2 (size of grid) := 5.667 * 10 ^13 := 57 Trillion