It is perhaps one of the most valuable systematization products in the Spanish-speaking environment under the geospatial theme. Not having this document at hand is a crime; let's not say to ignore the project before reading it in this Geofumadas article.
It is very probable that a product like this is not found in a publishing house in the Hispanic medium, I would dare to think that beyond; and is that the document was born with the idea of creating a reference product for the geospatial subject in the face of constant evolution and the danger of bias from specific software. Definitely, an invaluable document elaborated by Víctor Olaya, with the collaboration of known in the geospatial environment among which Landon Blake, Miguel Luaces, Miguel Montesinos, Ian Turton and Jorge Sanz. Although Víctor Olaya is a polyglot who has written and composed on a variety of technical and artistic subjects, in this he seems to have collaborated with this team in a very particular way, almost -I imagine- as when he was geofuming the SEXTANTE initiative , which surely must have been an intense moment.
We refer to the GIS Free Book, Which may well be a reference document at the time of writing on a topic, elaborate a presentation, build a system, teach lectures or simply learn more about Geographic Information Systems.
Not only is it important because it is free, because it is Hispanic, because it is ours, but because we are in an era where the dispersion of PowerPoint presentations, learning communities, blogs and sites where information is shared contribute but do not consistently consolidate the construction of hard documents that serve as a conventional bibliographic reference. This background and the support under which this book was built give it the authority to be taken into account by the community beyond the sense of admiration that we recognize.
It consists of 8 chapters in which 37 includes themes built with a logical sense: the first two chapters focus on theoretical and conceptual aspects, as the third and fourth chapters advance we realize that many things we thought we knew about the construction of Geographic Information Systems involve multiple disciplines that go beyond our curriculum and do nothing but challenge our self-taught fang. I like the chronology of the introductory stages of each section, based on the thread of what the user expects. Although the type of document does not lend itself to developed examples, it does not lose the practical focus.
The 7 chapter closes with cases of use specifically in ecological areas, risk management and planning. Then in the annexes it is explained that there is a complete data set of Baranja hill, In Croatia, which can be downloaded for the purpose of implementing the theme.
Also in the annexes a panorama of the software applied to the GIS in the current era is synthesized. The brief analysis of both free and proprietary software is made, mentioning in the case of desktop clients: ArcMap, Geomedia, Idrisi, PCRaster, Mapinfo, Manifold, Erdas Imagine and Google Earth. Free software includes gvSIG, Grass, Quantum GIS, SAGA, World Wind, Open JUMPy UDig; Without leaving out the review of database managers, metadata, web publishing and libraries.
I suggest downloading this document as it is now -Which in itself already weighs 65 MB- Although it is a project we hope to continue updating. To finish convincing them, here I summarize the index of the 915 pages that only need a good cover.
I. The fundamentals
1. What is a GIS?
2. History of GIS
3. Cartographic and geodetic bases
II. The data
4. With what work in a GIS?
5. Models for geographic information
6. Main sources of spatial data
7. The quality of spatial data
III. The processes
9. What can I do with a GIS?
10. Basics for spatial analysis
11. Queries and operations with databases
12. Spatial statistics
13. Creating raster layers
14. Map algebra
15. Geomorphometry and terrain analysis
16. Image processing
17. Creating Vector Layers
18. Geometric operations with vector data
19. Costs, distances and areas of influence
20. More spatial statistics
21. Multidimensional Analysis
IV. The technology
22. What are GIS applications like?
23. Desktop Tools
24. Remote servers and clients. Web Mapping
25. Mobile GIS
V. The visualization
26. GIS as visualization tools
27. Visualization and Representation Basics
28. Map and cartographic communication
29. The visualization in GIS terms
SAW. The organizational factor
30. How is a GIS organized?
31. Spatial Data Infrastructures
VII. Practical applications and uses
34. What can I use a GIS for?
35. Risk analysis and management
37. Resource management and planning
A. Data set
B. Current Overview of GIS Applications
C. About the preparation of this book
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