World Background Maps

[BenganJ]

@Tapir
For the moment you can stop crossing your fingers and whispering words to yourself.

@All others
Right now I haven't got the high resolution resources I need to get this going! The end
result right now is too pixelated when zooming in. I have to dig on the net to see if I
can find a better starting image. For those that started to hold your breath, you can
breath again.

[Tapir]

@Bengan: at the moment I can breathe normally and I do not whisper. :D
But I still crossed my fingers. ;)
If you try to get something, it is usually successful. Therefore, allow me to continue to have crossed my fingers. ;) ;)

[ExtremorPL]

I think you should create your starting image in e.g. 8192x8192 resolution if you want to have your map background in 4096x4096. Why? If you want map_x.dds files (for close zoom) in 4096x4096 you need to cut original image for 4 parts. So start with 8192x8192 and after everything just scale it to 4096x4096 or leave how it is (8192x8192). Or create far zoom map in 4096x4096 and close zoom version in 8192x8192 for better quality.

[BenganJ]

@ExtremorPL

Right, that's EXACTLY what I've been done up 'til now, but when
I got hold of a special program written by a guy at Goddard Space
Center/NASA, that can create Lambert Conic Conformal projected
images from e.g. Equirectangular ones, I had to search for a higher
resolution start image, as the sample coming with the program was
only 1800x900, which is WAY too low! Now I have found one with a
resolution of 21600x10800. So, now I'm on it again mate! Watch out! :D

[ExtremorPL]

Can you share link to it? It would help me with my editor background. Sorry if you already did that, maybe I missed something.

[BenganJ]

Link to what?

[ExtremorPL]

A special program written by a guy at Goddard Space
Center/NASA, that can create Lambert Conic Conformal projected
images from e.g. Equirectangular ones.

[BenganJ]

No problem at all mate, here it is: https://www.giss.nasa.gov/tools/gprojector/
Enjoy!

[ExtremorPL]

Thanks mate! :D

[BenganJ]

@ExtremorPL

Mate, I found map projection data parameters in a location, that is what I call SCS-odd,
/def/climate.sii :!: :!: :!: :roll: :roll: :roll:

Code: Select all

	// Globe coordinates (in degrees) are based on map position:
	// latitude = map_origin[0] + (map_z - map_offset[0]) * map_factor[0]
	// longitude = map_origin[1] + (map_x - map_offset[1]) * map_factor[1]
	//
	// If advanced map projection is used (eg lambert) projection is applied on coordinates accordingly.

	map_projection: lambert_conic
	standard_paralel_1: 37
	standard_paralel_2: 65

	map_origin: (50, 15)
	map_offset: (16660.0, 4150.0)
	map_factor: (-1.71570875e-4, 1.729241463e-4)

You'll need at least the two standard_paralel values if you play with that program
I pointed you to. The 3 at the bottom are, as far as I understand it, used when you
want to calculate latitude and longitud for a certain map position X and Z. That's
another of those SCS-odd ones! The formulas for calculation is documented
within the commented paragraph! Damn, this isn't easy, mate! Right now I miss one
or two parameters to get the background images correctly distorted and tilted.
I hope you get some use out of this mate. :D

EDIT: Digging and testing a bit I noticed that the map_origin values are latitude and
longitude values for the origin of the map. Those values you should also input in the
definition of the Lambert Conic Conformal projection parameters in the program. :D
The last parameter for the projection is Height which gives you the zoom of the map
after projection.

EDIT2: Yesterday Scul, at the Promods team, told us that the MiddleEast map addon
already had changed to this "new projection", but that Promods itself weren't there
yet. That's why every satellite background mods and zoom mods didn't work any more.

https://www.promods.net/viewtopic.php?p=269640#p269640