What are the various map dimensions?

God-Emperor said:

The default values are in the CIV4WorldInfo.xml file in the GameInfo folder. The iGridWidth and iGridHeight are the width and height, but they are in "grid units" so to get the actual number of plots you have to multiply them by 4. The Standard map size is set to 21 by 13 grid units, which is 84 by 52 plots.

Any mapscript can override these defaults. Some do. In the map script you can to look for the getGridSize function to see if it redefines the WorldSizeTypes values. If the function does not exist in the file then it does not redefine the sizes. These are also in "grid units" so again, you have to multiply them by 4 to get the number of plots.
Example from C2C_PerfectMongoose_v310.py:

Code:

def getGridSize(argsList):
	grid_sizes = {
		WorldSizeTypes.WORLDSIZE_DUEL:		(12,	8),
		WorldSizeTypes.WORLDSIZE_TINY:		(15, 10),
		WorldSizeTypes.WORLDSIZE_SMALL:		(18, 12),
		WorldSizeTypes.WORLDSIZE_STANDARD:	(24, 16),
		WorldSizeTypes.WORLDSIZE_LARGE:		(30, 20),
		WorldSizeTypes.WORLDSIZE_HUGE:		(36, 24),
		6: (42, 28),
		7: (48, 32)
	}
	if (argsList[0] == -1): # (-1,) is passed to function on loads
			return []
	[eWorldSize] = argsList
	return grid_sizes[eWorldSize]

So for the C2C_PerfectMongoose_v310 maps a standard size map is 24 by 16 grid units or 96 by 64 plots. (So it is 12 larger in both directions than the default specifies.)

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ls612 said:

So if one wanted to theoretically change the sizes of maps would anything else besides those numbers need to be adjusted? This coming from a person who knows next to no python.

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12padams said:

So anyone could technically add a world size "endless" with 192 by 128 right?

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