columbus gis

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

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

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

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

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

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

Distance from the last hair has passed seemingly do not know how many days, suddenly found himself lazy summed up. This problem feel bad, but also have to write something to enrich themselves, otherwise this day of the life of the muddle, also too dull, no matter how to say, at least have to leave something for their experience. Gossip does not pull, recently has been busy with the GIS, the main domestic two map: Baidu and Gold maps, do directly call

underground integrated pipeline Geographic Information System of the "Digital Urban Management" Phase II. Through the Shaoxing county Pipeline Data Survey, 17 types of pipeline data have been fully established, and basic terrain data has also been established. These basic data reserves provide a powerful data basis for the establishment of the Shaoxing underground pipeline information system. Our company cooperates with Beijing Supermap software Co., Ltd. to develop and implement the geographic

Openlayers calls WMS Openlayers: Openlayers is an open-source JS framework used to implement Map Browsing effects and basic zoom and Pan functions in your browser. The map sources supported by openlayers include WMS, GoogleMap, kamap, and msvirtualearth. You can also use simple images as the source. openlayers provides many options. WMS service: 1 OGC organization and its open specifications To enable interoperability and integration of heterogeneous geospatial information and

Implement Message Communication with multiple real-time technology systems, and connect various real-time information to the system. Message Service middleware is used. The real-time access information can be GPS, aodb, SMS, ground radar, and other information. 5. Project Geographic Information Sharing and Service Platform Provides unified system integration interfaces, layer sharing, service systems, and map service interfaces for different applications to provide various support for business

Implement Message Communication with multiple real-time technology systems, and connect various real-time information to the system. Message Service middleware is used. The real-time access information can be GPS, aodb, SMS, ground radar, and other information. 5. Project Geographic Information Sharing and Service Platform Provides unified system integration interfaces, layer sharing, service systems, and map service interfaces for different applications to provide various support for business

Document directory The above setgriditem (pdispinfo); this function is a defined function for displaying data. pdispinfo points to the struct. For GIS software, attribute data display is an important issue. In the underlying GIS development based on VC ++, clistctrl or DBGrid is generally used to display attribute data. However, if the display efficiency of these controls is relatively low or the effic

I. Overview Interactive Drawing, I understand, is to draw a graph with the mouse. Interactive plotting is often used in GIS software development and design. For example, ArcGIS and other software have very complex human-computer interaction functions. Interactive plotting occupies an important position in GIS.2. object-oriented modeling of Elements In interactive drawing, you can view the elements of the dr

After creating a scenario in cityengine, We need to export the created model (in 3DS and OBJ formats ). You can select two export modes: Use File size limit and create one file per shape. Use File Size Limit: export the selected model as an OBJ or 3DS file. Createone file per shape: exports the model according to the shape. A 3DS or OBJ file is generated for the model generated by each shape. Figure 1Export Method Next we will discuss the naming of model files when exporting models using the cr

Some common GIS and remote sensing Journal information (transferred from: http://yibinwolf.spaces.live.com /? _ C11_blogpart_pagedir = next _ c11_blogpart_handle = CNS! 18ef5df3ed7df0c5! 1485 _ c11_blogpart_blogpart = blogview _ c = blogpart) 1. Publisher: Elsevier (full-text database: sciencedirect) Journals: Remote sensing of environment (SCI/EI, the No. 1 Remote Sensing Journal) ISPRS Journal of Photogrammetry and Remote Sensing (SCI/EI) Compute

Development of GPS/GIS in the Windows Mobile Development SeriesArticleFavorites, including basic GPS knowledge, longitude and latitude, use of navigation devices, development of related applications in C ++/. net, and practical application of GPS systems. GPS Basics GPS application knowledge GPS-Baidu encyclopedia GPS book Daquan GPS GIS What do you know about GPS longitude and latitude? GPS-W

After six months of study and debugging, I finally wrote a simple GIS. On the ARM development board, I chose QT/Embedded 2.3.7 as the graphic development interface. I debugged the touch screen yesterday, finally, a little result is coming out. I'm very happy. I just published a message to celebrate it. Many people ask me for code reference, but because it is a project, it cannot be used for reference. Sorry. In addition, if you need to find a refer

Problem cause Many simple operations are often required in the second GIS development.Code, To a general scale, to a custom tool (usertools) similar to MapX, or some analysis functions in Supermap object. These functions are implemented inProgramDifferent processes and events, not only every time the writing is troublesome, but also difficult to maintain. In the article "Designing reusable large-granularity GIS