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Van Sickle J. Basic GIS Coordinates

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Van Sickle J. Basic GIS Coordinates
CRC Press. 2004. - 171 p.
Coordinates? Press a few keys on a computer and they are automatically imported, exported, rotated, translated, collated, annotated and served up in any format you choose with no trouble at all. There really is nothing to it. Why have a book about coordinates? That is actually a good question. Computers are astounding in their ability to make the mathematics behind coordinate manipulation transparent to the user. However, this book is not about that mathematics. It is about coordinates and coordinate systems. It is about how coordinates tie the real world to its electronic image in the computer. It is about understanding how these systems work, and how they sometimes do not work. It is about how points that should be in New Jersey end up in the middle of the Atlantic Ocean, even when the computer has done everything exactly as it was told — and that is, I suppose, the answer to the question from my point of view. Computers tend to be very good at repetition and very bad at interpretation. People, on the other hand, are poor at repetition. We tend to get bored. Yet we can be excellent indeed at interpretation, if we have the information to understand what we are interpreting. This book is about providing some of that information.
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