columbus gis

The link between Java and GISGeographic Information System (GIS) is a new frontier subject developed in the early 70. because GIS has powerful and unique functions in data acquisition and input, spatial data management, map extraction, automatic mapping, digital terrain analysis, data output and so on, it is in resource inventory and management, regional town planning, disaster prevention and monitoring, en

Long ago, ESRI There is a product named "..." and "arcexplorer. This Explorer is not another explorer, and arcexplorer is not popular nowArcGIS Explorer. At that time, it seems that there was no such thing as ArcGIS, and some were ArcInfo, ArcView, Mo, the good old days.GIS , It will not be so depressing, so you can only blame yourself for not catching up with good time. Back to the beginning, arcexplorer is nothing more than an esri gis data.

Sharpmap, a GIS Open-Source Project Based on. NET 2.0, is written as a software developer (13): A Windows program interface based on sharpmap (C/S architecture), Su Weimin http://www.gisdev.cn/http://blog.csdn.net/suen/2008-2008-4-19reserve all rights. If you need to reprint the content, please contact the author and indicate the source in a conspicuous position. I haven't written any articles about sharpmap for a long time. It's not because I don't p

In the early 21st century, that is, the life of our generation yesterday and today, along with the "Space Awakening", GIS is gradually known to people. Geographic information system based on geo-principles is called the third-generation geographical language in academia. This concept was first proposed by Mr. Peng, the father of China's GIS. This "Space Awakening", in today's view, is even more applied in t

I am a newly graduated GIS undergraduate graduate, currently engaged in GIS software application development in Hangzhou. In the project development always feel that their programming level is not enough, so I want to find some open source GIS small projects to research, so as to improve their programming ability and project development ability. Search on the Int

Semantic (semantic) and Its Semantic Web First, let's talk about semantics. For personal understanding, semantics is meaningful information. For example, if we say "B-u-s" separately, it doesn't make any sense, but if we say "bus ", in English, it is a bus. In academic research, the semantics (semantic) was proposed as the "Semantic Web" (Berners-Lee, T ., hendler, J ., lassila, O ., 2001. the Semantic Web. scientific American, 28-37 .), maybe earlier. What is Semantic Web? The so-called Sema

Google Map incorporated the street view model into the public application, and suddenly found that the original WebGIS still works like this. This is a surprise for the innovative company. In the GIS industry, it is a very basic function to display the query element information through map query. For example, click the international trade tower on the map to display some related properties of the Overseas Trade Building, including the specific address

Since the beginning of the 90 's [url=http://www.forbst.com] electronic map application [/url] has received people's attention, but due to the limitations of the Times and the development of market economy is immature. The application of GIS system has not been used very well. Only a handful of state institutions and military systems can use these applications. With the development of technology and the demand of market economy development, especially

Like many people, I also deployed my GIS Major. I searched the internet for what this major did before I got into school, and how I got employed. As a result, I have not completely done what HD GIS does, what it can do, and what it can do. It is not easy for me to enter a school, so I cherish it very much. I want to learn something and find a good job. So I found a senior in the freshman year and asked him

Write in frontRecently began to study open source GIS, the domestic open source GIS data is very few, but is based on. NET is few. So decided to summarize their research data, technology is to share, this series (the plan is to write a series, if I can stick to the words) part of their own summary, partly from the network excerpt.Technical SolutionsThe main demand is to use B/s architecture, the front-end d

Use open-source projects to build a GIS Application System This article describes how to use an open-source international project to build a complete GIS (Geographic Information) application system. Common GIS application systems include: GIS kernel, spatial data import/conversion, spatial data engines, application se

Today, the source code is pasted on. Please give me more criticism. I hope you can point out some mistakes. Thank you. In the future, I will take the time to learn how to deal with special cases and add them. I hope you will have more support. Source code structure: Source code is attached respectively: 1. MathTool. cs /*************************************** **************** * Author: dxj * Creation Time: 2010.3.7 * Document Description: * Common mathematical functions commonly used in

0 reply content: first of all, thank you for your invitation. Let me talk about it: 1. A significant new feature of HTML5 is that the browser supports GPU acceleration. At this point, many GIS functions that cannot be solved under HTML4 but can only be implemented by C/S, for example, a very popular GIS 3D application can be used for some small and medium-sized scenarios. In addition, Canvas will accelerat

1.1.3 GIS application framework GISSince the development of the software, it has no longer been a simple application of spatial data storage and display. Many advanced functions such as 3D analysis, spatial analysis, Geographic Statistics, and geographic services have been applied in practice, businessGISThe software has evolved from desktop componentsWeb ServiceOfGISService. "GISConverting from database method to knowledge Method4". BecauseGISThe f

:# Print GalfileGfile = Os.path.join (projectdir,galfile)Self. Readgalmatrix (Gfile)#print "Gal"Exceptprint "No Weights matrices" # Read any GIS boundary files self.listgisnames = [] gisfiles = self.options["GIS" ["GIS"] for Gisfile in Gisfiles: fileName = gisfile+ ". GIs" self.listGISNames.append (fil

I had nothing to worry about this afternoon. I accidentally reviewed the mysql manual. I used to check the content of the manual very well, the focus is on some basic details of SQL statements, mysql performance parameters, and storage control management. However, today I accidentally discovered an important feature of mysql, that is, mysql also stores spatial data related to gis. I had nothing to worry about this afternoon. I accidentally reviewed th

2.5 Comparison of vector and raster data structuresEarly in the development of computer-aided cartography and GIS, vector processing technology was originally quoted, and raster data processing began in the middle of the 70 's. A few years ago, these two data structures were hard to be compatible, so they caused a lot of inconvenience to the use of data. In recent years, it has become more and more clear that the differences between grid and vector da

This is an experiment that I did when I first came into contact with the Google map API last year. I didn't do any further work in the future, but I wrote a draft and kept it in my blog post. Although some ideas are naive, there are even some errors. Today it seems that there are still some reference values, so I will release the draft for you to have a look. The original text is as follows: 0. Description After some time of thinking, I recently tried a "Google map online vector Interoperabi

Grass GIS is the the early 1980s, the U.S. Military Construction Research Laboratory (USA/CERL) Bill Gorgan is responsible for the selection of a land management, environmental planning, environmental assessment of Gis software. It has more than 400 geological analysis modules, today we analyze the r.lake algorithm.1. What can r.lake do to predict the modeling of the lakeIf 1 left is a topographic raster, i

The HT for Web, as the logical topology graphics component itself, does not have GIS capabilities, but can be fused with a variety of GIS engines, namely its client components, to achieve seamless integration of logical and physical topologies, and this chapter will specifically describe the HT for Web and development free Openlayers map combined with the application of key technology points, the introducti