gis for beginners

C + + library Cgal for computational geometry Open Source library for processing shapefile vector files Shapelib Projection conversion proj. 4 Categories GIS open source GIS business software GIS Desktop system Udig, Ju MP, QGIS ArcMap, ArcGIS GIS analy

, you also need to understand how these effects are achieved. then you can find the corresponding functions in the API. I think if your idea is normal, general functions should be available in direct3d/OpenGL. of course, you will also encounter features you want that are not available in these APIs, but this is not important. What is important is that you have learned new things-this feature does not support ^_^ in XX APIs. I usually adopt the method of forward learning, reverse learning, and po

When it comes to map making, many people will hook up with cartography the first time. Yes, many theories and ideas about cartography are well suited for GIS-based mapping. It can be said that the use of GIS for electronic map production, in fact, is also a small part of cartography.Cartography is a subject that studies the theory of map, the technique and application of map compiling. This science can be s

Currently, most of the GIS applications in China are under secondary development. Because for applications, the advantages of secondary development are obvious.1. ConvenienceSecondary Development has a low technical level. What we need to achieve is not the GIS technology, but the specific application of all implementations.Service. On the basis of understanding the business, it is convenient to use the

TrigonometryAnd spherical trigonometry. Let me surprise you: this stuff is overused. In your cases trigCan be avoided altogether by using simpler, but slightly more advanced, techniques, especially basic vector arithmetic. ElementaryDifferential geometry. This is the investigation of smooth curves and surfaces. It was specified ted by C.F. gauss in the early 1800's specifically to support wide-area land surveys, so its applicability to GIS is obvious

The following geographical information system application fields have answered these questions in their respective fields. Resource management) It is mainly used in the field of agriculture and forestry to solve the distribution, grading, statistics, and plotting of various resources (such as land, forest, and grassland) in the field of agriculture and forestry. The primary answer is "positioning" and "mode. Resource Configuration) All kinds of public facilities in the city, distributi

In the "HT for Web integration openlayers implementation of GIS Map Application" chapter introduces the integration of HT for Web and Openlayers, many friends respond to the domestic use of more than Baidu map, although the integration of the principle of the integrated Baidu map with openlayers consistent, But different GIS engine client combined with code details or a lot of differences, custom map style

In the "HT for Web integration openlayers implementation of GIS Map Application" chapter introduces the integration of HT for Web and Openlayers, many friends respond to the domestic use of more than Baidu map, although the integration of the principle of the integrated Baidu map with openlayers consistent, But different GIS engine client combined with code details or a lot of differences, custom map style

The MapGuide GIS system asked for help. An error was reported when connecting the SDF file with FDO. The solution was not found in a few days. mapguidesdf Currently, there is very little information about the GIS system on the Internet. However, most people use WebGIS. Here, MapGuide is used for GIS presentation and MapWindow is used for layers in the background,

GIS (4) -- add borders + the final simplified version of Marker and Brand for the js sogou map, gismarker In GIS (III)-brand logo style for optimizing sogou map of js edition, I shared my changes to Brand style. Now, let's unify the changes made to the Marker and Brand, and then make them a final optimized version. The main content of this optimization is: 1. Create a boundary first. Adding a boundary to a

Original GIS basic software and operation (v)Practice v. Basic operations of spatial analysisBasic Operations for spatial analysisSpatial Analysis ModuleSpatial analysis is a spatial data analysis technique based on the location and morphology of geographic objects, which is aimed at extracting and transmitting spatial information. Spatial analysis is the main feature of geographic information system. Spatial analysis capability (especially the abilit

Linux. programmer. GIS-Linux general technology-Linux programming and kernel information. The following is a detailed description. Two most common employment paths for GIS graduates: Data and secondary development. After graduation, the number of people engaged in program development accounts for 47% of the number of people employed (excluding those engaged in research and development ). I am also engaged i

This series of blog finishing and writing plans are as follows, plan 3 months (to 2018.2) completed.The first part, the introductory seasonPart II, Android base seasonPart III, Data Flow seasonPart IV, visualization of the seasonPart V, GIS common application seasonPart VI, GIS algorithm quarterThe seventh part, GIS engineering application case seasonEighth part,

This short article is a self-written post on shuimu. Author: iihero GIS, as an application software, is indeed fighting for a sigh of relief. Databases and other basic software, compared with GIS, are greatly outdated in China. The speed, which is currently the fastest, may be in the middle of China (that is, the MAPGIS of the University of Geosciences), and may be surpassed by other products now. Speed,It

Geographic Information System (GIS) can process high-resolution and massive spatial data and is a powerful tool for spatial epidemiological research. In order to enable Chinese researchers to master the basic operations and applications of GIS, the education center of the Institute of Computing Technology of the Chinese Emy of Sciences held a "advanced training course on

The. Net-based Open Source GIS project is collected as follows:NASA World Wind NASA World Wind is a Windows form system developed using. net. It provides a global positioning function from the perspective of the earth, similar to Google Earth. It combines images taken from satellites by the National Aeronautics and Space Administration (NASA) that are applied to blue marble, Landsat 7, SRTM, modem5, and more.Link: http://www.worldwindcentral.com/wiki/