Comments on thematic mapping blog: Why 3D works #2: It’s all about prisms

Hi Sean,Thanks for the highlighted polygon tip. I'...

2008-06-18T16:33:00.000+01:00

Hi Sean,

Thanks for the highlighted polygon tip. I'm using a similar technique to display values on top of the prisms, - but I was not aware that I could highlight the whole prism. Still, I think the icons distracts the user - so I'm waiting for a Google fix.

I acknowledge the challengeges caused by both perspective and the the curvature of the earth.

Hey Bjorn,Nice post - one of the way around polygo...

2008-06-18T14:50:00.000+01:00

Hey Bjorn,

Nice post - one of the way around polygons not being clicable in Google Earth is to use multigeomtry polygons where you embed a pushpin in the polygon that lights up the polygon when you mouse over. We use this for the KML we generate in Google Earth. It has it own issues and would love to see Google fix it optimally. There is a nice post by Jason Birch on how to do it here:

http://www.jasonbirch.com/nodes/2006/10/18/38/using-multigeometry-for-mouseover-effects-in-google-earth-kml/

In regards to prism I'm still curious how to deal with the variation in height caused by the curvature of the globe. I may have South Africa in the foreground and its height looks the same as Chad (to the North) because of the loss of height for Chad caused by the curvature of the earth. Color helps with this but can still be a bit confusing.

Ok,Probably I'm too plain :)I have to accept that ...

2008-06-17T09:48:00.000+01:00

Ok,

Probably I'm too plain :)

I have to accept that the height of the prisms are more efficient to guess the relative value between features.

Anyway, nice and useful job

Cheers