Noun interpretation
1 Delaney triangulation and voronoi polygon 2 spatial database engine 3 thematic map point density method and independent value method.
4 spatial data compression 5 component GIS software
Ask and answer questions
Taking a GIS software as an example, 1 illustrates the functions of GIS. What is DEM and how to use DEM to extract river network information.
In an area, if you want to choose a site for a park, you need to be in a densely populated area and away from the existing parks. Give the population map (grid data) and the existing park distribution map (grid data) of this area, how to make the site selection map and draw the operation flow chart.
How to register remote sensing data with map data and write the principle and method?
Spatial data sharing is of great significance to geographic information system. Explain the factors that affect spatial data sharing and how to promote spatial data sharing.
East China Normal University 2005 postgraduate entrance examination questions.
Examination subject: Introduction to Geographic Information System.
Enrollment Major: Cartography and Geographic Information System
I. Explanation of nouns (score 10 for each question, 50 points in total)
1, map projection
2. Visualization of geographic data
3. Geographic metadata
4. Spatial superposition analysis
5. NDVI index (normalized difference vegetation index)
Second, question and answer questions (20 points for each question, total 100 points)
1. To build a planning and management information system for tourist attractions, please describe how to complete the following tasks:
1) Design the layer composition and content of spatial database; 2) determine the data source;
3) Input and edit data and establish a spatial database.
2. What are the formats of spatial data (vector data) commonly used in GIS at present? How to fuse spatial data of different formats?
3. What is positioning-configuration analysis? The application of location configuration analysis is illustrated with examples, and the implementation scheme is described.
4. Describe the content of geographic information standardization and how to apply it in the construction of geographic information system, and describe the implementation scheme.
5. Describe the role of GIS in digital city construction and the key technologies that need to be solved at present.
The second part is the analysis of real questions.
Analysis in 2006:
The specialized course of Geographic Information System in East China Normal University does not test the content of development, does not involve the compilation of codes, and only tests the ability of theory, analysis and problem solving.
Noun explanation:
(1) Delaney triangulation and voronoi polygon: These two concepts will be used when generating irregular triangulation. The former is a group of triangles that are adjacent to each other and do not overlap each other, and the circumscribed circle of each triangle does not contain other points. Delaney triangulation is formed by connecting points on the same side of voronoi polygon. Delaney triangulation is formed by connecting three adjacent points, and the voronoi polygons corresponding to these three adjacent points have a common vertex, which is also the center of the circumscribed circle of Delaney triangle.
(2) Spatial database engine (SpatialWare) is responsible for accessing spatial data, and using its powerful spatial data management, query and analysis capabilities, it completes a large number of spatial information extraction tasks in spatial data mining. This is its concept. Generally speaking, some explanations can be made by combining common software such as arcsde and other spatial database engines.
(3) Both the point density map and the independent value thematic map can only represent one thematic element. Point density map reflects the size of attributes through the density of elements. Thematic maps are unique in that each value of an attribute is given a color or an expression. These two methods are mainly used in thematic mapping. Then, combined with map/info and other software to do some simple instructions.
(4) See Huang Xingyuan's Introduction to Geographic Information System P90 for details.
(5) Component GIS, also known as COMGIS, refers to packaging GIS functions into a component, and developers can combine a component into a system as needed. This development mode is very flexible, and it is also the main development mode of GIS system at present.
Explain the nouns, answer the main points, and then further elaborate based on your own practice and learning, so that you can get high marks.
The fourth part: the ultimate notes of professional courses.
Geographic Information System (GIS) is a new interdisciplinary subject. Because its theoretical basis is not perfect, the content of memory is not much, especially for students who take the postgraduate entrance examination. The key of GIS is to understand and understand the unique theory in the discipline and the relationship between related disciplines.
What should we master about theory?
First of all, what is the basic composition of GIS?
GIS consists of five main elements: hardware, software, data, personnel and methods. I think these five components should be familiar to students of this major. Here, I mainly talk about the content of the data. Data is the soul and the most basic part of GIS. For the development of a project, the use of software, the construction of infrastructure, data is often the most basic content, the most time-consuming part, and the most expensive part of the project, which is enough to reflect its importance and irreplaceable. In the use of software and projects, we can often find many problems, but the most hidden and easy to find problem is the problem of data. Therefore, when processing and generating data, we must be careful, and don't ignore the quality of data because of the fast graph.
How does GIS work?
GIS is used to store information about the world. It is a collection of all subject layers that can be connected together through geographical relations. This simple but very powerful and universal concept plays an inestimable role in solving many practical problems, including tracking transmission tools, recording detailed information of the plan, simulating global atmospheric circulation and so on.
(1) geographic reference system
Geographic information contains a clear geographic reference system, such as latitude and longitude coordinates or national grid coordinates. It can also include indirect geographic reference systems, such as address, postal code, census area name, forest location identification, road name, etc. An automatic processing system called geocoding is used to change from an indirect reference system (such as address description) to an explicit geographic reference system (such as multiple positioning). These geo-reference systems can help you locate certain elements, such as business activities and forest locations, and also locate certain events, such as earthquakes, for surface analysis. We can code according to the run-length coding method. Run-length compression coding is to map several consecutive grid cells with the same attribute value in the original grid array into a run, and the data structure (a, p) of each run is an integer pair. A is the attribute value. P represents the column number of the rightmost disconnected grid in operation.
2 1. Describe the method and steps of converting paper maps into vector electronic maps.
1. An image scanned into a grid from a map. 2. Register the image. 3. Vectorize raster image into electronic map.
22. Describe the fusion of remote sensing data and GIS data and its significance.
(1) Remote sensing is an important information source and data updating means of g is. Remote sensing data has the function of obtaining spatial information quickly, in real time and dynamically. As a subsystem of geographic information system, remote sensing system can provide timely, comprehensive and large-scale resources and environmental data for geographic information system.
(2) GIS provides an important means for the extraction and analysis of remote sensing information. GIS can combine terrain data with remote sensing data, and greatly improve the automatic classification accuracy of remote sensing data.
23. A department wants to design a desktop geographic information system, and you need to build a desktop primitive model to describe the process.
1. Demand analysis
2. System design
(1) Overall Design 1) User Requirements 2) System Objectives 3) Overall Structure
Part V: Re-examination: written test and oral test
The re-examination of East China Normal University was originally scheduled for April 20th, 2005 to April 22nd, 2005. The re-examination of geography department of East China Normal University consists of written examination and oral examination. The timetable will be clearly written on your second interview notice. I want to talk about the details of the second interview of GIS major. The second interview content is 1. Comprehensive Course of Cartography and Geographic Information System (written test) (including metrology, cartography and remote sensing), Metrology, Juck Zhang, Higher Education Press; Mathematical Methods of Modern Geography, Xu Jianhua, Higher Education Press (1996); Introduction to Remote Sensing Mei Anxin et al. (200 1), Higher Education Press; Cai, a new course of cartography, Higher Education Press. 2. Professional basic knowledge and basic theory and application skills (oral test). 3. Foreign language listening and speaking tests. The second interview has little effect on students with high scores. As long as your score is high and your second interview performance is normal, it will not be brushed off. And basically, the public places and admission lists are basically set before the second interview, unless your performance in the second interview is really poor. In 2005, I didn't brush the second interview. It turns out that someone almost got brushed. Later, a teacher was still a bodhisattva and wanted to leave him. In 2006, only one student switched from GIS to geography curriculum and teaching theory.
The written test is usually held in the geography hall. The interview is also in the geography office. Of course, I will also ask some professional questions during the interview, such as GIS and remote sensing. Take it easy. As long as you have a little oral communication ability in speaking and listening. For example, make a simple English self-introduction, and then ask which university you are from and why you reported the topic here. The average student should have this ability.
The seventh part is the postgraduate course examination questions of the College of Resources and Environment.
Examination subjects: GIS programming and software application
1. What is a topology? Illustrate how to apply topology in GIS with examples. (20 points)
Second, what types of data sources does GIS have? Their data input and processing methods are described. (20 points)