I have a 400x400 array of signed 16 bit data values (ranging from -32767 to + 32766). I would like to draw a 2D image of my data, representing my data values by a color scale. How do I go about this? Is there any way of defining your own color scale, eg one that ranges from black(-323767) over red(0) to yellow(+323766)?
Buy I was more looking for at way to show the data in a bit-map sort of way. I have many such data files and I want to be able to show many of them in a kind of thumbnails way.
Here's a variation on some code some once posted (I think it was DFGray) which uses the Color to RGB conversion VIs to basically do what you want. This was meant to be called as a subVI where you can use it to get a smooth transition between two colors. You can take the calculation part and use it as a basis for a piece of code which will accept an array of clusters (each cluster with a color value and a corresponding numeric value and calculate it) and modify your 2D array to LV colors. Then, you simply use the picture VIs to plot your array to a picture using these 24 bit color values.
