Usage Guide
If you want your X,Y coordinates to scale with different image resolutions, you can convert them into a percentage between 0 - 1. If you have this sort of data and you enable Percentage scaling the visual will automatically adjust your X,Y Coords to the size of the image.
If you use the intensity data, the visual can now automatically detect the maximum intensity in the recorded value. If you want to use that instead of supplying it yourself in the Max Intensity, then toggle Auto Intensity On.
As seen from the data two of the data points have intensity values of 10, while the rest is below 1. Because of that the only the ones with high intensity values gets colored red.