Search found 155 matches

by meynaf
Sat Oct 30, 2021 8:03 am
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

There are no polar issues in Freeciv maps which don't depict an entire planet. A map of only the British isles, for instance, without WrapY has no problems regarding which way is north or south. Top is always north, bottom is always south (within the Freeciv game.) Local maps aren't the point here,...
by meynaf
Fri Oct 29, 2021 5:46 pm
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

^ Not if one doesn't make world maps in Freeciv! And no WrapY. No polar issues that way. I didn't get what you mean here. There are always polar issues, the only choice is which ones you accept. English is a mess, yes. But it's fun! Anyone can make-up ridiculous words, and once others start using t...
by meynaf
Fri Oct 29, 2021 12:33 pm
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

The problem, as I see it, is that within a Freeciv map, the north pole can be located anywhere - middle of the map, for instance. At which point it is -not- the north pole anymore because in Freeciv, North is always the top edge of the map. Tile coordinates 0,0 and 100,0 are both the north pole wit...
by meynaf
Thu Oct 28, 2021 7:52 am
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

I get what you mean about the poles. "Normal" Freeciv world maps are sort-of an hourglass projection where the small polar area is stretched across the entire map width in a massive distortion of the poles. But limited poles create some odd situations too, for instance traveling due north...
by meynaf
Wed Oct 27, 2021 7:00 pm
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

The poles in Freeciv are necessarily wrong / warped due to the rectangular map format. The top part of the map is the north pole*, so the entire width of tiles should be ice despite that it gives the visual appearance of the north pole being equal area as the equator. Same thing at the bottom as so...
by meynaf
Wed Oct 27, 2021 4:51 pm
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

^ I'm not sure what is meant by "shapes"? Any data that can be used to build correct north and south poles, in the freeciv way. An image showing them is ok. The elevation issue is still the same as it was in my prior post isn't it? In my view there are four land tiles which inherently ind...
by meynaf
Wed Oct 27, 2021 10:11 am
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

I think that using image software to resize / scale-down your tst.png image does a better job of it than anything that I have tried manually. With interpolation disabled, the pixel colors don't change at all. I wouldn't trust image software for that task without knowing the algorithm it uses. And i...
by meynaf
Tue Oct 26, 2021 4:36 pm
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

I've used the "inaccessible" tile in scenarios, but none are Earth / whole-planet. It's the cave walls in " The Hunted ". Originally the caves were a labyrinth but I had to dumb-it-down repeatedly or the "A.I." players would wander around in the maze for awhile and man...
by meynaf
Tue Oct 26, 2021 8:22 am
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

The 14th tile type is the "inaccessible" tile which might have some value for features such as "bottomless" pits on land, or the inside of an active volcano, or the vertical edges of a canyon or tall cliff, or any rock feature which wouldn't be scalable by standard Freeciv units...
by meynaf
Mon Oct 25, 2021 7:15 pm
Forum: Gameplay
Topic: maps with different projection ?
Replies: 122
Views: 62092

Re: maps with different projection ?

At 21,600 * 10,800 pixels, your image has 233 million pixels. If your final map size target is 1,000x1,000 tiles , that is 1,000,000 tiles total. In which case, it might be better to develop an algorithm to convert each high-definition 233 pixel area of the image to 1 tile , rather than to convert ...