Archive for the ‘ArcGIS 9.3’ Category

State-based Spatial References – Projection Files

Sunday, November 11th, 2012

This past week, I received an AutoCAD drawing that did not have a customary state plane coordinate system associated with it. So, I spent some time plugging in different projection files until I figured out what the projection was of the drawing.

After going through that hassle, I decided to create a set of webpages to simplify that task for me, for the next time I have to go through that effort. I am making those webpages available on my website for others to use.

The link to that is: http://www.the-hurds.net/GIS/Spatial-Reference/index.shtml

Just click on the state in the map, that you are looking for projection data for. Enjoy!

Posted in ArcCatalog 9.2, ArcGIS 9.2, ArcGIS 9.3, ArcMap 9.2, Quantum GIS 1.8.0 | No Comments »

An Earthquake Series Animation, Using ArcGIS 9.3

Saturday, April 14th, 2012

After seeing a video that went viral, by StoryMonoroch, on YouTube, http://www.youtube.com/watch?v=W8bDQi6zwdA, I decided to figure out how to accomplish something similar, using ArcGIS 9.3.

My first step was to get some earthquake data. I chose to use earthquake data from the US Geological Survey (USGS), that covered the previous 7 days, for earthquakes of 2.5 magnitude or higher. The link to this data is http://earthquake.usgs.gov/earthquakes/feed/csv/2.5/week

The next step was to convert the date and time field into a format that ArcGIS animation tools would work with. I decided on using the format, YYYYMMDDHHMMSS, as it would be relatively easy to create the formulas necessary to convert the USGS data into.

The webpage with this is located at: http://www.the-hurds.net/Earthquake/index.shtml

Posted in ArcGIS 9.3 | No Comments »