Examples of ca.eandb.jmist.framework.color.ColorModel.fromRGB()

Class ca.eandb.jmist.framework.color.ColorModel

Examples of ca.eandb.jmist.framework.color.ColorModel.fromRGB()

ca.eandb.jmist.framework.color.ColorModel.fromRGB()
Creates a Spectrum approximating an RGB triple. @param r The red component. @param g The green component. @param b The blue component. @return The new Spectrum.

    int      y    = MathUtil.clamp((int) Math.floor(v * (double) h), 0, h - 1);
    ColorModel  cm    = lambda.getColorModel();


    switch (picture.getFormat()) {
      case RGBE:
        return cm.fromRGB(picture.getPixelRGB(x, y)).sample(lambda);
      case XYZE:
        return cm.fromXYZ(picture.getPixelXYZ(x, y)).sample(lambda);
      default:
        return cm.getBlack(lambda);
    }

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    } else {
      switch (pixel.length) {
      case 1:
        return cm.getGray(pixel[0], lambda);
      case 3:
        return cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);
      case 4:
      {
        double alpha = pixel[3] / 255.0;
        if (MathUtil.equal(alpha, 1.0)) {
          return cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);

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        return cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);
      case 4:
      {
        double alpha = pixel[3] / 255.0;
        if (MathUtil.equal(alpha, 1.0)) {
          return cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);
        } else if (MathUtil.equal(alpha, 0.0)) {
          return background.evaluate(p, lambda);
        } else {
          Color bg = background.evaluate(p, lambda);
          Color fg = cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);

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          return cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);
        } else if (MathUtil.equal(alpha, 0.0)) {
          return background.evaluate(p, lambda);
        } else {
          Color bg = background.evaluate(p, lambda);
          Color fg = cm.fromRGB(pixel[0]/255.0, pixel[1]/255.0, pixel[2]/255.0).sample(lambda);
          return fg.times(alpha).plus(bg.times(1.0 - alpha));
        }
      }
      default:
        throw new RuntimeException("Raster has unrecognized number of bands.");

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