11-10-2016 12:23 PM
I have a large set of overlapping data in a scatterplot that I need to display. I am currently using as XY graph but I cannot get the markers to be transparent. The reason I am trying to display the data this way is to get a feel for the density. Is there any way to do this?
Opaque
Transparent
11-10-2016 06:33 PM
Not directly, but one way I've done something similar is to construct a heat map and place it in the graph's PlotImage.Back. In this demo, I use a 2D Gaussian of a given size as the point representation, but you could use any array you wish, along with a different colormap. A little more difficult to overlay multiple datasets, but it might give you some ideas.
11-10-2016 09:49 PM
Another option may be to use the 3D Scatter Graph from the Modern graph palette. I find the 3D graphs somewhat difficult to configure correctly, but it does give the option of semi-transparent points, as well as multiple plots and colors.
11-11-2016 06:53 AM
Thank you Greg
I've never seen the heat graph before, it is very cool and I'll be using it in the future for other projects. I've tried the 3d plot, as you suggested, but I have too many data points so it runs slow. I'm thinking I should bite the bullet and use a picture control to graph the data.
07-31-2019 02:07 PM
is there any way you can post the VI for this?
07-31-2019 02:12 PM
The image is the VI. Learn how to use VI snippets - http://www.ni.com/tutorial/9330/en/
Craig
07-31-2019 02:12 PM