Find the border points of my terrain tiles

Rows of quads from pole to pole. Going with Barnes again, I want some minimum area for each colony site. I will get the areas of each row by finding the area of the spherical caps down to the bottom of each row.

Oops!

Last day of the month...

What do I for April?

Tiles of Terrain

Rows of quads from pole to pole. Going with Barnes again, I want some minimum area for each colony site.

Oops!

Fill a world rectangle with land and sea...

Rows of quads from pole to pole. Going with Barnes again, I want some minimum area for each colony site.

Oops!

I messed up...

Need to make that quad based world mapper.

I have half million km^2 triangles... still want to push out quads to triangles. Sigh.

Rows of quads to triangles...

These diamond quads...

Oops!

My next gigasecond?

My next megasecond

Quads in a Sinusoidal World Map

Oops!

Now that I can find the column and row, I can pick a point randomly or by clicking inside the sinusoid. I can walk to a random adjacent tile and make it land or sea, blue or green, or use position to generate a seed for a not so random number and average them with adjacent heights and subdivide quads into triangle fans with vertices above or below sea level.

Campaign?

I'm working on a solo game...

I should go back to the sinusoidal world map and then subdivide the quads and triangle pairs into adjacent parent triangle corner quads/triangle pairs.

Make the diamond quads 7 px wide and 12 px tall

These diamond quads...

Oops!

Equilateral diamond quads 700 km wide, 600 km tall

Area at each row.

Oops!

Equilateral diamond quads 900 kilometers wide

Area at each row.

Oops!