Crunchin' Map Bones
Ok. So, we've all heard and saw the news about Microsoft Research's MapCruncher. Well, on the PLANET we've decided to take it for a whirl. As always, we advocate safety on the job, so we'rekeeping all our fingers out of the Cruncher. Here's our screen shot of the interface. It's pretty easy to understand for a GIS professional. Here we uploaded a PDF map of the US & Canada. We had to register 17 control points to get the map to fit nicely over the Virtual Earth base data. We used state boundary intersections as control points for ease of use. An interesting thing once you lay down your control points is that you can lock them. Then save your mashup as a native .yum file. Once you've done that, it's time to render the mashup, or "Crunchup." When you render the crunchup, you can set the max zoom level. This determines the size of your crunchup file. If you go into the max VE zoom level of 10, in our case, we would have ended up with a 2500MB file! Remember, MapCruncher renders tiles just like the imagery for VE. So your mashup is only big as what you set your max zoom level at. In this case we set it at 6 and we ended up with a 14MB file. Above you can see our final mashup. It's ok. I would be better if there was a transparency setting. Anyway, it's not bad. I'm not a VE API guru, but if I was, this would be good if I had a website and wanted to try a few things.