A few years ago I worked with a friend of mine to work with different wedge azimuths for each cell by creating a collection of rasters for each angle (you could create a collection of rasters calculated for each buffer size, chosen by percent inside study area) and then used the Pick tool to select the stats result she wanted for each individual cell. Just another option I thought I'd throw at you, if you weren't overwhelmed by your options already!
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Projected and Geographic coordinate systems and coordinate system transformations can really drive you nuts... :confused: And yes, you are opening Pandora's box... Nonetheless, I strongly recommend you to take serious time to familiarize yourself with the basic concepts, as the consequences of inappropriate and incorrect usage can be devastating (yes, not only on paper but also literally, I once worked a short period for an oil company, and they had a special introduction to coordinate systems for new employees working in GIS that started with an oil platform going up in flames due to wrong usage of coordinate system information - this was no joke! ) Read as much as you can from different sources, ultimately, things should start to clear up a bit. As a starter: The ArcGIS Help - What are map projections? I also recommend you to read all other sub-topics under the same heading, look in the Help TOC (Table of Contents) on the left of the Online Help window for the sub-topics. Also, this Ordnance Survey UK document, although partly focused on the UK situation, gives a nice introduction, and basic reminders and concepts, of Coordinate Systems: A guide to coordinate systems in Great Britain And these ITC webpages (some Dutch examples, ITC is an international institute but located in the Netherlands): http://kartoweb.itc.nl/geometrics/index.html And the Wikipedia pages: http://en.wikipedia.org/wiki/Geodesy http://en.wikipedia.org/wiki/Coordinate_system I can also recommend you these two pages by Eric Gakstatter, although you need to have some basic understanding first, and know some GPS jargon... See the Wikipedia links below. Nightmare on GIS Street: Accuracy, Datums, and Geospatial Data Part 2: Nightmare on GIS Street �?? Accuracy, Datums, and Geospatial Data Wiki links: CORS Continuously Operating Reference Station DGPS Differential GPS GNSS Global Navigation Satellite Systems RTK Real Time Kinematic WAAS Wide Area Augmentation System
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