Re: How to point at a spot and get relevant information?

On Thu, 7 Aug 2003 10:59:01 -0500 , you wrote: >Thank you for your reponses. The problem is there are thousands of spots on >the plot. >The locations are random. This may be one of those "you can't get there from here" problems, and you'll have to rethink the presentation of your data. What's the application? I would have suggested an image and Javascript picking up mouse X and Y, but thousands of points sounds like a lot of data to throw out to the client, and a big array for Javascript to do lookups against. Thoughts: a) Try compressing the data before it's sent. Describe several adjacent, similar points with a single polygon instead. b) Zoom in, and pan across the plot. That way there's less data on each page. c) Flash? Java? They should have better response times than Javascript. A regular desktop app would be best, of course. e) Embed the label into the plot in some way. Charts on paper don't need hovering labels, maybe you don't either.