Saturday, February 21, 2026

Oh, yeah...

28 January 2025- Starmap
Oops!

Now for the triangles...

Why did I give up on this?

7 December 2024- Square to sinusoidal grid of points
Oops!

Columns and offset rows of diamonds...

bits of world

Land or Sea- 22 June 2025

Bits

1.1 billion

diamonds, again

28 March 2025- Draw Map

Procedurally build a map.
Draw diamonds!.

Oops!

Thursday, February 19, 2026

Broken eggshell worldmap; drag a sinusoidal polygon and subdivide into two along some new internal line of points 

Wednesday, February 18, 2026

Monday, February 16, 2026

Write something, half of February is gone!

I had the peach thing all those years ago, maybe I should have stuck with that?

Sunday, February 15, 2026

Subdivide that tetrahedron, each face six ways to make poor Vinnies twenty four sider. 

Pick some points

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

Friday, February 13, 2026

Friday the 13th passed uneventfully.

I can push the center of the initial triangle out along the cross product to find the center of my world.

Thursday, February 12, 2026

Build a triangle mesh from three user picked points

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

Wednesday, February 11, 2026

Build a 3D triangle surface mesh with vertices at least 10 px/1K km apart. We push out the edges at random from an initial triangle of three points at radius distance from the center of my hypothetical world, based on random size. detect concavities in the border edges of my world polyhedron (how?) and close them off with a bridging triangle and edge. Remove closed edges from the border and add new ones as we go along. Edges are two endpoints and the third vertex of a triangle with one or two closed edges and two or one new open edge. Edges are defined by endpoints, a third vertex of the triangle the edge belongs to. The midpoint and the vector through the midpoint from the third vertex are easy to derive. Or, edges are derived from adjacent vertices in the list of border points, checking for concavities to close off as we go. We get the vector from the midpoint of the edge by calculating the cross product of the two vectors from the center to the center to each endpoint. If this new point is too close to an existing border point, then we have detected a concavity and should close it off.

Saturday, February 7, 2026

Derive a fourth coordinate from three points of user defined triangle

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

Fill up a map rectangle with triangle fans of land and sea.

Find the 10 px quads partially within the circle

28 March 2025- Draw Map

Pick a point and generate the planet, mass first.

Oops!

Thursday, February 5, 2026

 So, haven't written...

Been a long week already, gotta work Saturday 

Tuesday, February 3, 2026

Finally

Back to finding quads within a circle to make a stupid polyhedron. Project a grid of quads 10 px or a thousand kilometers on a side. The edge quads are bigger, taller. The quads are subdivided into two triangles along and edge between the nearest corners.