Just a little picture

April 27, 2016

What is the Projection System used in Google Earth?

Despite reading other opinions online, I finally found that if I export an image from Google Earth Pro (don't forget to hit U and N first to make sure the image is north up and in plan view rather than off axis and oblique), I can successfully georeference the image in ArcGIS if I set my data frame to: Projected Coordinate Systems: World: "WGS 1984 Web Mercator (auxiliary sphere)." After georeferencing I can re-project the image to whatever coordinate system I actually need it to to be in.

Posted by Charles at 04:50 PM

February 28, 2016

Apple's Migration Assistant Unexpectedly Quit

Migrating from one laptop to another. Old: 13" 2008 Macbook running OS 10.9.5. New: 13" 2015 Macbook Pro running 10.11.3. Used a standard ethernet cable through an Apple brand Thunderbolt to Gigabit Ethernet Adapter to connect them.

Every time: Apple's Migration Assistant Unexpectedly Quit.

Error log awkwardly refers to something about Migration Assistant "tried to be brought forward" bla bla.

Multiple tries, swapped known-good ethernet cable for another known-good one, Disk Utility stuff, repairing permissions, turn off iCloud stuff, turning on File Sharing and Remote Apple Events etc. Reinstalled OS on new laptop. Nothing. Several days trying.

Decided to try an alternate method: ran a full backup (a bootable clone) of old laptop internal hard drive to a USB-mounted external hard drive, something that was already a regular practice for backing up the laptop's contents, and then pointed new laptop's Migration Assistant to that hard drive instead. Worked fine the first time. Used the fantastic SuperDuper! to make the backup clone.

Apple's adapter cable was a worthless overpriced $30 purchase. All hail SuperDuper!

Posted by Charles at 09:41 AM