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Mass formatting, fix mobile display, fix issues with image wrap-around

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This commit is contained in:
Bradlee Speice
2024-12-15 21:19:09 -05:00
parent 1ce6137c17
commit 456c3a66e5
41 changed files with 1026 additions and 817 deletions
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36
blog/2024-11-15-playing-with-fire/3-log-density/paintLinear.ts
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@ -1,18 +1,26 @@
export function paintLinear(width: number, height: number, histogram: number[]): ImageData {
const image = new ImageData(width, height);
export function paintLinear(
width: number,
height: number,
hist: number[]
) {
const img =
new ImageData(width, height);
let valueMax = 0;
for (let value of histogram) {
valueMax = Math.max(valueMax, value);
}
let hMax = 0;
for (let value of hist) {
hMax = Math.max(hMax, value);
}
for (let i = 0; i < histogram.length; i++) {
const pixelIndex = i * 4;
image.data[pixelIndex] = 0;
image.data[pixelIndex + 1] = 0;
image.data[pixelIndex + 2] = 0;
image.data[pixelIndex + 3] = histogram[i] / valueMax * 0xff;
}
for (let i = 0; i < hist.length; i++) {
const pixelIndex = i * 4;
return image;
img.data[pixelIndex] = 0;
img.data[pixelIndex + 1] = 0;
img.data[pixelIndex + 2] = 0;
const alpha = hist[i] / hMax * 0xff;
img.data[pixelIndex + 3] = alpha;
}
return img;
}