create-graphic

    1.0.2 • Public • Published

    create-graphic

    A simple function for drawing on a canvas element and receiving the result. Useful for programmatically-generated static graphics, WebGL textures (think particles) etc.

    Install

    npm install create-graphic

    Use

    import createGraphic from 'create-graphic';
     
    const graphic = createGraphic(256, (context, width, height) => {
      const radius = width / 2;
      const gradient = context.createRadialGradient(radius, radius, 0, radius, radius, radius);
      gradient.addColorStop(0, 'rgba(255, 255, 255, 1)');
      gradient.addColorStop(0.25, 'rgba(255, 255, 255, 1)');
      gradient.addColorStop(0.5, 'rgba(255, 156, 1, 1)');
      gradient.addColorStop(0.6, 'rgba(243, 81, 1, 1)');
      gradient.addColorStop(1, 'rgba(0, 0, 0, 1)');
      context.fillStyle = gradient;
      context.fillRect(0, 0, width, width);
    });

    The draw function will return the canvas context by default, but you can return anything to override this. The example below also demonstrates defining both width and height, and using the draw function context as the, um, context when not using an arrow function.

    import createGraphic from 'create-graphic';
     
    const graphic = createGraphic([400, 200], function(context, width, height) {
      this.fillStyle = '#C0FFEE';
      this.fillRect(0, 0, width, height);
      return this.canvas.toDataURL();
    });

    Install

    npm i create-graphic

    DownloadsWeekly Downloads

    6

    Version

    1.0.2

    License

    MIT

    Unpacked Size

    2.38 kB

    Total Files

    3

    Last publish

    Collaborators

    • nikrowell