Method setPixelColor

packages/core/src/index.ts:646–659

* Sets the hex colour value of a pixel * * @param hex color to set * @param x the x coordinate * @param y the y coordinate * * @example * ```ts * import { Jimp } from "jimp"; * * const image = new Jimp({ width: 3, height: 3, color: 0xffffffff });

(hex: number, x: number, y: number)

     * ```
     */
    setPixelColor(hex: number, x: number, y: number) {
      if (
        typeof hex !== "number" ||
        typeof x !== "number" ||
        typeof y !== "number"
      ) {
        throw new Error("hex, x and y must be numbers");
      }

      const idx = this.getPixelIndex(x, y);
      this.bitmap.data.writeUInt32BE(hex, idx);

      return this;
    }

    /**
     * Determine if the image contains opaque pixels.