| | Example
Note: Arc
Explorer is now a modern Win10/iOS/Android app linked in text below.
Introduction-
This
CLIWOC
dataset was posted on the internet
as early as 2002
- This tabulates some captain's ship's logs for the period 1750 to 1850
- They document the fascinating voyages of exploration in that period
- Products such as Arc Explorer allow you to map these for free
- That is a web service that uses your computer as a web client
This
compared ESRI's File Geodatabase and Google's KMZ file formats, against their respective web viewers: The CLIWOC dataset has almost 290,000 points, and is almost 250Mb Geodatabase. The location parameters were extracted into a File Geodatabase and compressed to 10 Mb. These are displayed by 25 year time-slices and for Captains Cook and de la Perouse. This file geodatabase is easily downloaded and consumed by ArcGIS Explorer. For comparison, a KMZ file was exported directly from the ESRI MXD file.
Instructions- Unzip: CliwocExports.gdb.zip into a local folder called: CliwocExports.gdb
- click: Save As a local file, an unzip it to that folder on your computer - Install ArcGIS Explorer from the web link here
- In ArcGIS Explorer main menu, select: File then: Open
- Select the icon: File Geodatabase on the left hand banner
- Navigate to the folder you just created: CliwocExports.gdb
- Select the file: CliwocExports.gdb within it
- Select one of the layers within it, say: delaPerouse
- Follow the rest of the instructions in ArcGIS Explorer
-
See the end of de la Perouse's voyage off Australia's east coast:
Capt. de la Perouse's ships - the Astrolabe and the Boussole - disappeared without trace
offshore Australia.
His original intent was to claim it for the French king, and he almost
took a young Napoleon as his surveyor...
Think of the consequences had Napoleon died young!
From: Die verschollenen Schiffe des Laperouse (The lost ships of Laperouse), Hans Otto Meissner, C. Bertelsmann (1984) |
