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Archive for the ‘GIS’ Category

Mapping of Language Student Locations using PowerView

  1. What do our language students call home? Based on a pivot-table that counts zip codes, let PowerView tell you, which is can now distributed as a free add-in for Excel 2013 Prof, but you need to enable it (under File / Options / Add-Ins).
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  3. Comes with a nifty zoom: image
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  5. Click, then Hover a data bubble for more info; image
  6. Like with Bing Maps Visualization, the weighting is surprising: image

Mapping of Language Student Locations using Bing Maps

  1. What do our language students call home? Based on a pivot-table that counts zip codes, let Bing Maps tell you, a default add-in easily accessible in the insert section of the ribbon:
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  3. Note a Limitation: Bing Maps max 100 data points. image
  4. So we limited to zip codes with at least 15 students (which returns just below 100 zip codes).
  5. Also note, the Bing maps app cannot be increased beyond a certain size (below is the maximum).image
  6. Finally, note  that the visualization does have a weight indicator, but it seems imperfect:
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  9. Here is how data (type) input errors get handled (duplicates override the original):
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  11. Fix your data, the reload from the upper right unfoldable menu: imageimage
  12. Voilà: image

Easy adding and viewing GeoTags with your phone camera

  1. “Open your camera app, go to “Settings” (sprocket), menu item: “Geotagging”, “On”: android-camera-SETTINGS-GEOTAGGING
  2. Turning the phone’s the GPS on is not absolutely necessary, as this indoor basement shot proves:
  3. pixi-phone-wlgallery-geotag2-wireless-tower
  4. but will likely increase the accuracy of the Geotag in your photo greatly:pixi-phone-wlgallery-geotag-gps
  5. How to view depends on your photo viewer application, above examples are taken from the free Windows Live Photo Gallery.

Using geolocation information in photos for documentation?

  1. During documentation writing today, I noticed that my WlGallery suddenly (?) started displaying the geotags in pictures taken with my Palm Pixi which I set a long time ago to store (and share) location information. I t looks like this has started working  earlier, but gone unnoticed. pixi-wlgallery-geotag I also looks like it uses cell tower triangulation, not GPS data (when the latter is not available?): pixi-wlgallery-geotag2 At such a granularity, this feature can not be useful for generating documentation. But maybe for excursions?
  2. But seems still a bit iffy, on the Pixi side of things: I am pretty sure that previously, I could not see geotags in my photos, even though I tried several image metadata viewers. Also, the Pixi does not always add geotags: is this limited to pictures taken when there are network connectivity issues?
  3. Also seems like editing operations in wlgallery, including create panorama, “eat” the geotags in the output image….