I'm sorry but I'm really not sure what you are trying to do here.Originally Posted by aquarits
Hai, I am Impressed! You are a chest of knowledge.
I dowlnoaded the GProjector and checked somethings, ofc not so specific, but just about my shape.
Dunno how to explain right, so i will describe what i did.
I used a 3D software (Autodesk Inventor) creating my globe and draw my shape (draw and emboss the shape), after it i made a "flat" getting all my globe (elipse) in a plane. Checking the GProjector, i guess it is like a Orth projection, my shape already have the the grids with the same dimension that i got in the globe.
See image, that i have 25 mm in the center and the same 25 mm close to the pole. Is a very close dimension when i made the dimension in only one plane, is like if the software stretch the pole to my grid dimension, in this case 25 mm.
It sounds like this is probably the way you should go, use the equidistant map as the "raw data" adjust it until you get the right distortion, then export to your final projection and apply styling. You wouldn't need my Mercator template working this way. If you want a Mercator map, just select the Mercator option in G.Projector. If you want a graticule on it, G.Projector can add one for you.After it i tried 2 things, set my pole shape in ortho GProjector and in 3D function of Photoshop.
I get exaclty same shape, i believe that same dimension that i got in my origial shape. So i need to do few adjstments to get the real shape. Sinse i dont make the grid fix, i guess i can get the real dimension. Like i did im my maps, i did wrong, coz used only one grid for the entire map. Guess i have to get the projection, get the area to be detailed and after it, set one point to insert my scale, following points that i got flatting in Inventor or the shape from GProjector. Where is called Equiretangular projection.This is my pole shape, comparing my first in Inventor, GP and Photoshop.
After all this, i will made some adjstmentsfor my next version.
Now, following your tuto, i am still trying undertand how to get the "real" distance using the Gratitudes, probly i am having problens with math/english, if u can simply for me i apreciate.
http://www.cartographersguild.com/tu...made-easy.html
You conviced me to remove the grid, probly getting a "game version" and a "beliveable version"
About the distorsion, i can get a "real" projection and close up and give up from the distorsion effect that used in my maps.
Thank you for sharing all your experience!!!
heh, it being a nice learn road!
*i dunno how to use ur Mercator template in Photoshop*
For your regional maps, there are a lot of options to choose from. I would recommend against using Orthographic for this. For a fairly compact region, an Azimuthal projection would work well, and is fairly simple, enter the latitude and longitude of the centre of the map. For larger areas, particularly if they run mostly east-west and in higher latitudes, Conic projections work well. You need to pick to standard parallels near the top and bottom of the area, and a central meridian to set where the middle is east-west. It's hard to explain so you'll just have to experiment. Finally, for regions that run mostly north-south, transverse cylindrical projections work well but I don't think G.Projector supports them. I'd recommend using the conformal versions unless you specifically need equal area: Stereographic for azimuthal maps, Lambert Conformal Conic (LCC) for conic maps, and Transverse Mercator for transverse maps.
As long as your regional maps use appropriate projections and don't try to cover too large of an area (like a whole hemisphere) areas, angles, and straight line distances should be approximately correct regardless of which particular projection you use.
If you want the graticule as a separate layer, feed in a blank, transparent image, set all the parameters exactly the same as when you projected the map, add the graticule, and export, then load as a layer over top of the projected base map.
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