flagship gis

GIS There are some common terms in the system. The following describes some basic concepts that are frequently used in the system. Data Dictionary:It is a configuration database that maintains the normal operation of the system and ensures that the system conforms to the actual application. The content includes the ownership name andCodeSystem parameter codes such as the location class name and code, land ownership code, and slope code, as wel

course) 16) david h. Eberly's 3D Game Engine Design: A Practical Approach to Real-Time Computer Graphics 17) Alan H. Watt, 3D computer graphics (3rd edition) 18) Computer Graphics of James D. Foley and others: Principles and Practice in C (2nd edition). Let's take a look at this Bible when it's okay. Part 4: Where can I download the materials? My csdn resources are available. I will upload them one after another. You can also search for them online. Computer Graphics learning methods and re

1. Enter the plug-in GIS application framework 1.1 Application Framework 1.1.1 application framework Overview "Framework (FrameworkIs a reusable design of all or part of a system. It is usually composed of a group of abstract classes and classes"1. The development of software products is a complex system engineering. As the complexity of the problems to be solved increases, the software product R D process has evolved from the past "Worksh

> pt1.y (TPT. x> = linept1.x TPT. x (TPT. x> = linept2.x TPT. x Meetpointnum ++;}}Else{Double KK, BB;Double meetpty, meetptx;Kk = (pt1.y-pt2.y)/(pt1.x-pt2.x );BB = pt1.y-kk * pt1.x;Meetpty = KK * TPT. x + BB;Meetptx = TPT. X;// Handle special cases where the intersection is the endpointDouble dx, Dy, dx2, dy2;DX = meetptx-pt1.x;DY = meetpty-pt1.y;Dx2 = meetptx-pt2.x;Dy2 = meetpty-pt2.y;If (dx> =-0.0000000001 DX Dy {Tabpoint pt3;If (k = 1){Pt3 = (tabpoint) part. pointarray-> getat (pointsize

Because we do have a project on tourism, so it involves the map function. One of the tasks I received was to show a few designated sights on the map and add markers to the map.Our project is using Sogou map. The JS version number is used. If you are interested, you can refer to the Search Map API and Demo sample code.Adding markers to a map is a basic function of the map. This mark is called marker. Can be crossing from here on the Internet for marker class introduction.The basic steps to implem

JSON data is common and useful in Android, and JSON data is also supported in ArcGIS, and JSON and geometry can be converted to the data we want.One, geometry converted to JSON dataThis implementation is very simple, for example, when we convert a point to JSON, we also use the powerful class Geometryengine.Point point = new Point(113, 23); String json = GeometryEngine.geometryToJson(SpatialReference.create(SpatialReference.WKID_WGS84), point); Log.w("TAG", "json===" + json);The result of

The main window under Python can be defined as follows:def start (self):#self. Project = Project ("temp")#self. Project.directory = OS.GETCWD ()#Splash = SplashScreen (self.master)Self.hellos = 0Self.master.title ("Stars:space-time Analysis of Regional Systems")Self.master.iconname ("STARS")Self.master.bind ("h = self.winfo_screenheight ()W = self.winfo_screenwidth ()Geom = "%dx%d"% (w,h)Self.master.geometry ("600x400+0+0")The menu is defined as follows: (List only the menu under file, then slig

. Smart tips are mainly used by a JS:This key is you in the Baidu Developer Center registered after get, will not Baidu on the line. The map is then modified. Add Baidu Map Smart tips on the page JS:at the end of the page (To search for input, add an ID of "suggestid", i.e.:This is achieved in a functional way. But to be more aesthetically pleasing, let's set the font style for the drop-down:Baidu smart hint drop-down box font. tangram-suggestion table tr{ font-size:20px;}Finally finished, the

Since I have time today, I will write a few more blog posts, but also for tomorrow to go out to play a good relaxing. As the comrades in the field of GIs know, the traditional Douglas-poke algorithms are recursive implementations. However, sometimes the recursive hierarchy is too deep, there will be stack overflow situation. In this paper, a non recursive algorithm is introduced. To change the recursive algorithm to a non recursive algorithm, it is ge

coordinate is the center of mass of the Earth, and the z-axis of the rectangular coordinate system of the geocentric Space points to BiH (International time)1984.O-Defined Protocol Earth Pole (CTP) direction, x-axis points to the intersection of the 0 Meridian plane of BiH 1984.0 and the CTP equator, and the y axis and the z axis, the x axis vertically constitute the right-hand coordinate system,Called the 1984 World Geodetic coordinate system. Spatial databaseBuilding a OGC Web serviceThe Open

Three years ago, listening to the then brother recommended, bought Chiang waves of a book on the framework of GIS plug-ins. At that time while reading one of the examples of the complete realization of the case, the profit is shallow. Later, as a result of the project needs, also made a plug-in C/s system, with the MEF provided by Microsoft's framework. In this system, the communication of the Plug-ins and plug-ins not covered by Chiang's waves in his

As a GIS developer, no algorithm, too easy to be despised, so must seriously learn the algorithm, and constantly summed up, very grateful to the beginning of the entry, met a serious master. Good memory is better than bad writing, some basic geometric algorithms recorded, for follow-up inspection. 1, Vector concept: If the end of a line segment has a sequence of points, called a directed segment, if there is a point to the beginning of the line segmen

Declaration of originality: Please respect the fruits of my labor, when reproduced but please be sure to indicate the source. Map of GIS Map Interactive operation, to add, delete features on the map, while displaying the click on a feature to display information about the feature. The overall development environment is: jdk7+tomcat7.0+geoserver2.3.3+mysql5.5.32, using the language has HTML, JavaScript, JSP, java. Directly post the Map page code, repla

PostGIS_Full_Version();"Create the PostGIS database directly using the template method and specify the owner# 登录数据库# postgis_21_sample 为 2.1 版本postgis数据库create database geodataont template postgis_21_sample owner gdo;# 或者createdb -O gdo -U postgres -T postgis_22_sample geodataontEnabling SQL for the PostGIS feature Don't INSTALL it in the database called postgres . # 连接数据库之后，执行以下sql命令启用相应功能# Enable PostGIS (includes raster)CREATE EXTENSION postgis;# Enable TopologyCREATE

CREATE TABLETb_geo (IDINT PRIMARY KEYAuto_increment,nameVARCHAR( -) not NULL, PNT Point not NULL, SPATIALINDEX' Spatidx ' (' PNT ')!--1. Create a spatial index when creating a table --) ENGINE=MYISAMDEFAULTCHARSET=UTF8;!--The database table engine is set to Myisam-->!--2. Create an index on a table that already exists--!--ALTER TABLE tb_geo ADD SPATIAL INDEX spatidx (PNT);!--3. Create an index using the creation index statement with the following syntax-!--CREATE SPATIAL INDEX spatidx on T7 (g)-

In Windows 7 versions, the flagship edition is the most comprehensive version. At present, the reason why mainstream "Computer City" brands are preinstalled with Windows 7 family edition instead of the flagship edition is very simple:It is based on minimizing costs and taking the lead in the market to improve competitiveness (the flagship version price is much hi

System Activation tool download _ win7 flagship activation tool v1.7 download The win7 flagship activation tool supports 32/64 bits in the win7 system and uses one-click activation. The activation success rate is extremely high. After activating the win7 flagship activation tool, there is no OEM information and GRUB startup information. Like a genuine version, it

First, check whether the Windows 7 family version of the branded machine is authentic "pre-installed"-that is, an operating system with a genuine license from Microsoft and a computer-produced information, such as Lenovo Dell, to ensure a smooth network Turn on System Restore (My Computer--> Properties--> System Protection--> Select the C disk--> configuration--> Select the top one radio button--> determine--> selected C disk creation) Then, open windows Anytime Upgrade in Control Panel, enter

In the use of the Win7 64-bit flagship will definitely need to activate the Win7, so the activation of the Win7 flagship has become a need for every user to pay attention to, if the Windows7 can be successfully activated, then users can carry out a series of follow-up maintenance and optimization behavior. Today I'd like to introduce you to the Win7 flagship edit

Win7 The difference between the plates The Windows7 system downloads 6 versions of the package. These 6 versions are distinguished for Windows 7 Starter (lower level), Windows 7 Home Basic (Family normal edition), Windows 7 Home Premium (Family Advanced Edition), Windows 7 Professional (bo), Windows 7 Enterprise (Enterprise Edition) and Windows7 Ultimate (flagship edition). The various versions of Windows 7, which are packed with the high bill, can h