.com.unity Forums
  The Official e-Store of Shrapnel Games

This Month's Specials

Raging Tiger- Save $9.00
winSPMBT: Main Battle Tank- Save $6.00

   







Go Back   .com.unity Forums > Illwinter Game Design > Dominions 3: The Awakening > Scenarios, Maps and Mods

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old October 30th, 2006, 11:19 AM
Singularity24601's Avatar

Singularity24601 Singularity24601 is offline
Corporal
 
Join Date: Oct 2006
Posts: 55
Thanks: 1
Thanked 10 Times in 2 Posts
Singularity24601 is on a distinguished road
Default Topology - Update 1

Wraparound maps solve the strategic serendipity of map borders, but I dislike them because I find them hard to visualize. On a spherical world, if you head far enough east, you reach the west, but you don't reach south if you head far enough north - that would only be true if you were on a torus (a doughnut). On a sphere, if you're on the eastern hemisphere and head far enough north, you reach the north side of the western hemisphere, now heading south. I propose two methods of simulating spherical worlds:

1) Modified tesselation
I believe it should be possible to achieve a closer approximation to a sphere by rotating each "row" of iterations by 180 degrees (ie, vertically and horizontally flipping). I have attached diagrams to demonstrate:
Image 1: Torus tesselation
Image 2: Incorrect sphere tesselation
Image 3: Correct sphere tesselation

2) Cylindrical projection
Simply neighbour the eastern and western edges (with or without tesselation), provided 2 conditions are met:
- All provinces of the northernmost and southernmost latitudes must be neighbours with each other (equivalent to dividing arctica/antarctica like a pie).
- The number of provinces per latitude must be a maximum in the equatorial latitude, decreasing roughly trigonometrically to minimums at the northernmost and southernmost latitudes (eg, 1-3).

To achieve these conditions will result in some distortion:
- As one approaches the polar extremes, the shape of the provinces are preserved, but the area of the provinces become progressively larger (Mercator projection).
- As one approaches the polar extremes, the area of the provinces are preserved, but the shape of the provinces become progressively flatter (eg, Gall-Peters projection).
- A compromise between the two extremes (eg, equidistant cylindrical projection).
Attached Images
File Type: gif 464877-Dominions - Topology.gif (5.6 KB, 186 views)
Reply With Quote
 

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 10:24 PM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2024, Shrapnel Games, Inc. - All Rights Reserved.