public void notifyMoreDataReady(float[] bins) { // an array of floats
if (recursion) System.err.println(" RECURSION ");
nBins = bins.length;
if (nBins == 0) return;
recursion = true;
if (size == null || nBins != size.height || nChunks != size.width) // || this is the or operator
createGraphics(); // Returns a Graphics2D object for rendering into the specified
// BufferedImage.
int width = size.width;
for (int i = 0;
i < nBins;
i++) { // this is recursing over all the rows (nbins is the number of rows)
int bin = nBins - i - 1; // I think this makes it start from the top
float val = mapper.eval(bins[bin]); //
if (val < 0) val = 0.0f;
if (val > 1.0) // I think this next section colours the pixels in the spectrum
val = 1.0f; // display
int c_r = (int) (255 * val);
int c_g = c_r;
int c_b = 255 - c_r;
int color =
(c_b)
+ (c_g << 8)
+ (c_r << 16)
+ (0xFF
<< 24); // << operator means signed left shift-- it shifts the bits in the binary
// code to the left creating a bigger number the operand on the right
// specifies the amount of shift
screenBuffer[i * width + ptr] =
(255 << 24)
+ color; // I think loads the screenBuffer array. the index[i*width+ptr] is filled
// with the right operand
// rgbarray[i] = color;
}
if (ptr % 1 == 0) { // ptr remainder(%) 1
screenConverter.newPixels(
ptr, 0, 1,
nBins); // newPixels is method inside the MemoryImageSource i think it does this----Sends
// a rectangular region of the buffer of pixels to any ImageConsumers that are
// currently interested in the data for this image and notify them that an
// animation frame is complete.
screenRepaint = true;
repaint();
}
ptr =
(ptr + 1)
% size.width; // i think this may help in changing the co-ordinates ptr may be the x
// coordinate
recursion = false;
}
