Checkpoint for histogram

It takes a lot of render time to get a usable result, and it's not that interesting. Committing so I can save the work if I want to revisit it, but abandoning the idea for now.

blog/2024-11-15-playing-with-fire/3-log-density/chaosGameHistogram.ts

@@ -0,0 +1,34 @@
+import {plot} from "./plotHistogram";
+import {randomBiUnit} from "../src/randomBiUnit";
+import {randomChoice} from "../src/randomChoice";
+import {buildTransform} from "../2-transforms/buildTransform";
+import {transformPost} from "../2-transforms/post";
+import {transforms} from "../2-transforms/FlameFinal";
+import * as params from "../src/params";
+
+const finalTransform = buildTransform(params.xformFinalCoefs, params.xformFinalVariations);
+const finalTransformPost = transformPost(finalTransform, params.xformFinalCoefsPost);
+
+const step = 1000;
+const quality = 1;
+
+export function* chaosGameHistogram(width: number, height: number) {
+    let iterations = quality * width * height;
+    let histogram = new Uint32Array(width * height);
+
+    let [x, y] = [randomBiUnit(), randomBiUnit()];
+
+    for (let i = 0; i < iterations; i++) {
+        const [_, transform] = randomChoice(transforms);
+        [x, y] = transform(x, y);
+        [x, y] = finalTransformPost(x, y);
+
+        if (i > 20)
+            plot(x, y, width, histogram);
+
+        if (i % step === 0)
+            yield histogram;
+    }
+
+    yield histogram;
+}