Looks interesting, quick comment on the demo http://projects.digitalflophouse.com/tempest/example http://projects.digitalflophouse.com/tempest/example Maybe m

Looks interesting, quick comment on the demo http://projects.digitalflophouse.com/tempest/example http://projects.digitalflophouse.com/tempest/example Maybe move the Coordinates box right under the image and put some text like "Please Click Above To Generate Coordinates" First thing I did was quickly scan the page and click "Render Heat-Map" button which threw up a php error. I know it should be obvious that you should click image, but that text was hidden one of the paragraphs.