best laptops for gis

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Android GIS Development Series--Introductory season (Featurelayer) range query

Android GIS Development Series-Introductory season (5), in this article, we know how to find features. Now there is a need to find a point 5000 meters in the range of features, then how to do it? First we need to draw a circle with a radius of 5000 meters on the map and then query the relevant features based on the queryparameters. Specific as follows:One, draw a circle with a radius of 5000 meters1. Determine the center point: centerpoint2. Radius of

Using Python as the second GIS: Stars development Environment Configuration

Stars ' general use can be quickly learned through regal Web pagesHttp://regionalanalysislab.org/?n=STARSDo not do a detailed introduction againThe subject of interest here is the analysis of the Stars source codeThe process of developing a GIS directly from the ground up using PythonSTARS 0.8. There are two types of download links available in the 2 version: installation package and source code packageThe installation package can be installed and run

Learning materials for GIS and THREEJS

Basic knowledge/nounTile/Vector TileGeoJson-Drawing GeoJson View data, GeoJson specification, Chinese versionWeb Front EndMap frameOpenlayers (3.x Apidoc http://geoadmin.github.io/ol3/apidoc/)Mapbox-gl-jsGeo VisualizationTurf.jsSupercluster.jsOtherD3jsGeojsGeojson-vt3d + GISWebgl-globe (texture)CESIUMJS (tile bias visualization)ARCGIS-JS (tile biased GIS)Ol-cesium (tile is not yet mature)GL Big DataDECK.GL Uber'sMAPV Baidu'sBottom chartGaudBingMapboxO

One of GIS related technologies: symbol editor

Objective With the rapid development of information technology, GIS technology has been developed, which has created a new model for the management of geo-information. It is used more and more widely. Of course, this is not the stuff discussed in this article!! Introduced This article refers to the symbol from ArcGIS, so only for the GIS has a certain experience of friends and I learn together. Main refe

Experience of developing Web GIS using ArcGIS Server (1)

(For Windows operating system. Net Development Environment) ArcGIS Server is the latest server product launched by ESRI. It can implement two main functions:1. Development of powerful Web GIS systems;2. Development of distributed GIS systems;The kernel of ArcGIS Server is the same as that of ArcGIS Desktop and ArcGIS Engine. It is the ArcObjects library. The so-called Web

3 S News Weekly, Issue 1: GIS and the new round of geographic movement

Published by 3 S News Weekly no7, subject of this issue: New GIS and New Round of geographic movement Read Online: http://www.3snews.net PDF download (recommended ): Http://www.3snews.net/uploads/emagazine/3snewsweekly/3sNewsWeekly_No7.zip Directory : PrefacePrelusion2. New GIS and a new round of geographic movement News circlesNews attention3. During the "11th Five-year Plan" period, China will t

Experience of developing Web GIS using ArcGIS Server (1)

(For Windows operating system. Net Development Environment) ArcGIS Server is the latest server product launched by ESRI. It can implement two main functions:1. Development of powerful Web GIS systems;2. Development of distributed GIS systems;The kernel of ArcGIS Server is the same as that of ArcGIS Desktop and ArcGIS Engine. It is the ArcObjects library. The so-called Web

Discussion on the application and development of urban planning in mobile GIS

1 , overviewThe urban construction process is speeding up, the urban planning management is becoming more and more heavy, the data of various sources produce various problems, which seriously affect the accuracy of urban planning, so we can make more scientific decision by mastering all aspects of urban planning information comprehensively and rationally. The rise of mobile has provided great convenience to the dynamic aspects of planning, all kinds of the deep development of wireless terminal,

GIS learning and exploration (I)

Due to work reasons, I have been studying the controls of GIS over the past few days. I mainly read the controls of Supermap and MapInfo. The main achievements are as follows: 1. Most GIS controls have these controls: mapcontrol is used to display maps, zoomin, zoomout, roaming (used to drag a map), moving left, and moving right. 2. I watched some flash and some examples and found that the main functions

Discussion on open source solution of GIS in accordance with company

1. PrefaceThis week, I did some preliminary exploration of open source software and related technologies and processes involved in the open source solution for GIS, as well as some of the more mature cases that other companies have done with open source solutions. Here I will some technical key points of the preliminary research to do a summary, while the other companies open source success stories to do an analysis, and put forward the personal think

Stages of GIS business development

The GIS business development stage is divided: Phase 1: digitalization. At this stage, people are new to GIS. The main business is to digitize previous data;Stage 2: visualization. The user uses spatial data for two-dimensional drawing and three-dimensional roamingCodeConvert to images that are easier to accept and perceive;Stage 3: Spatial statistics, analysis, and Simulation. With the continuous deep u

GIS learning Exploration

Due to work reasons, I have been studying the controls of GIS over the past few days. I mainly read the controls of Supermap and MapInfo. The main achievements are as follows: 1. Most GIS controls have these controls: mapcontrol is used to display maps, zoomin, zoomout, roaming (used to drag a map), moving left, and moving right. 2. I watched some flash and some examples and found that the main functions

Jiangsu Provincial Key Laboratory of geographic information science, Jiangsu Province, Jiangsu Province, state key discipline of cartography and geographic information system (GIS), Nanjing Normal University

focus on investment and policy inclination. The discipline construction is intensifying. This subject has a long history. As early as the beginning of 1950s, Professor Lu Shufen, a famous Chinese cartography artist, set up the teaching and research base for cartography. In 1980, Cartography and Remote Sensing became the first master's degree authority approved by the State Council. In recent years, the provincial department of education and schools have attached great importance to the developm

GIS basics-vendor introduction (2) ESRI

US Institute of Environmental SystemsErsl ( Enveronmentalsystems researchinstitute , Abbreviated ESRL ), Ersl The company's market share has been dominant for many years GIS First in the industry. ESRI Exclusive Company 1995 World GIS 1/3 of the software market share, which has been stable for several years GIS The largest market share. 1991 Year

Compile quantum GIS (qgis) in Ubuntu)

Qgis is an open source desktop GIS tool written with QT framework. It is a good tool for learning GIS and QT. This article describes how to compile the source code of qgis In ubuntu. Reference link: Http://gvision.info/using-qtcreator-with-qgis/ Http://hub.qgis.org/projects/quantum-gis/repository/revisions/master/entry/INSTALL Environment: Ubuntu 11.10 1. Depen

GIS (Iv.)--Add boundary +marker and brand's final beautification version for JS version of Sogou map

In the "GIS (third)--optimize the JS version of the Sogou map brand sign style," shared the brand style changes. Now take these several marker and brand changes to beautify again, counted as an ultimate optimized version of it.The main content of this optimization is: Add a boundary for the entire operational area Change a dynamic picture for marker Replace translucent red images for brand Show only one brand, switch every 3 secon

Camp data quality verification, about marketing MIS system and Distribution GIS system SQL statement query, as the accumulation of use, the next time you do not have to repeat the same statement.

1. Distribution GIS Line Export data:Select R.name Line Name, r.run_status operating status, R.voltage_level voltage level,R.manager_depart Management Department, R.belong_substation-owned factory stationFrom ODS_SC. T_d2_pd_feeder R where r.gsdm= ' 040100 ' and R.run_status and R.manager_depart not in(' Jiangnan power supply Bureau ', ' Green Show Power Division ', ' Xingning power Supply Division ', ' West power supply Bureau ', ' five Elephant Powe

Android GIS +webservice

Android Beginner Classic Introductory TutorialAndroid Development Tutorial (full free version)Android SDK v3.1.0Android positioning function (i)Android positioning function (ii)Android Baidu Map Development (a)---application API key and display Baidu map in the project[019] Android platform invoke WebService detailedAndroid get GPS location, including APN\WIFI\GPSSetting to update Android applications only if connected with WLAN (Android user tip)GPS ToolsTelephonymanager Class Usage Method coll

Open source GIS-Comparison Between geoserver and mapserver

terms of style. Udig is easy to use. The advantage is that when the map service is released and you want to modify the style of a layer, you only need to modify the style that was originally referenced, you do not need to re-release the layers. The installation package (ms4w.zip, decompress to the root directory) of mapserverhas built-in Apache. However, because IIS occupies port 80, you need to set the following port (In \ ms4w \ apache \ conf \ httpd. in Conf, change Listen 80 to listen 8081

Optimization of Embedded GIS engine accelerated Map Display

Because embedded systems and general PC systems differ greatly in computing speed, memory capacity, and storage space, how can GIS engines run well on embedded devices, you need to optimize the following aspects: 1) Data Organization 1. Map Data Compression (curve extraction) There are usually a large number of vertex Vertex on the line and plane data. Because vertex is too dense, it takes too much time to draw. Therefore, map data must be pr

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