Method upload_png

js/src/Figure.ts:1382–1394

(model, scale)

  }

  async upload_png(model, scale) {
    const canvas = await this.get_rendered_canvas(scale);
    canvas.toBlob(async (blob) => {
      const buff = await blob.arrayBuffer();
      model.send(
        {
          event: 'upload_png',
        },
        null,
        [buff]
      );
    });
  }

  async upload_svg(model) {
    const svg_string = await this.get_svg();