The thematic atlas is a collection of maps that reflect the results of a particular discipline or research field. The mapping process is cumbersome, long-cycled, and complex. With the development of society and the advancement of printing technology, the application of thematic atlas in the national economy, urban management and social life has become more and more extensive, and people have put forward higher and higher requirements for its quality. There are many factors affecting the quality of the thematic atlas. This article will mainly introduce how to ensure the quality of the thematic atlas in the printing process, hoping to bring help to the peers. design production 1. Preparation of geographic base map The geographical base map is the geographical basis of the thematic atlas. The storage, expression, transmission and extraction of the thematic information must be realized through the base map. The preparation of the geographical base map should be carried out as soon as possible. The first draft needs to be carefully proofread and used by the planner before the formal thematic map is officially prepared. In addition, the geographic basemap should reflect the distribution characteristics of the thematic content in the content selection, and make the drawing clear and easy to read without disturbing the thematic content. Pay attention to the following points during the production process. (1) The choice of geographical factors such as water system, topography, residential areas, and roads should be reasonable, and the relationship between geographical elements should be correct. (2) The color of the geographical base map should be lighter and lighter, and the number of colors should be less. Otherwise, the topic content cannot be highlighted. (3) The specifications of the geographical basemap symbols and annotations should not be complicated. Under the premise of ensuring accuracy, the comprehensive degree of graphics should be appropriately increased. (4) The preparation of borders such as national borders and provincial boundaries must conform to the standard drawing method prescribed by the authority publishing house and the national standard. (5) The water system should be compiled reasonably, the relationship between the main tributaries should be clear, the grades should be clear, and the notes and labels should be correct. (6) If there are latitude and longitude lines in the base map, the marking method of the latitude and longitude annotation should be standardized, and the angle of the annotation class in the geographical basemap should be consistent with the direction of the latitude and longitude lines. (7) There should be no errors or omissions in the marking of country names and provincial surface notes. 2. The color design of the thematic atlas Scientific and artistic are the basic principles for the development of thematic atlas. Traditional maps tend to focus only on science and light art, which affects readers' interest in reading. Today's maps are paying more and more attention to their artistic performance, that is, the requirements for visualization are getting higher and higher. The scientific content of the thematic atlas is expressed through its various art forms, such as symbols, colors, graphics, finishing, and surface configuration. Among them, the matching of colors has become one of the important criteria for evaluating the quality of thematic atlas. Colors ultimately need to be printed on paper, so color design depends on the printing equipment, etc., considering printing accuracy and print quality. In short, the following points should be noted in the color design of the thematic atlas. (1) Use different hue to highlight the categories of thematic elements, for example, blue for the ocean, green for the vegetation, and brightness for the difference in the number of thematic objects, especially the different brightness of the same hue. The increase or decrease, for example, the depth of the blue indicates the depth change of the ocean. (2) Using the surface color to display the quality characteristics, correctly reflecting the inherent characteristics of different phenomena and the quality differences between them, the distribution range and relationship of each region. Considering the natural color of symbols, there is a certain symbolicity when expressing the topic of climate. Generally, the tropical climate zone is indicated by red, and the cold zone is indicated by cyan. Use the comparison of cold and warm colors to reflect the changing laws of climate and deepen people's understanding of the special phenomena. In order to make the regions have obvious differences, the color scheme should be coordinated, and it is not possible to make a certain area particularly prominent. The other area is too dull. At the same time, in order to avoid excessive use of colors, the adjacent areas can be reused in the same area. color. (3) Use the gradient of color to express the dynamic development of the topic. For example, in the desert map, the direction of the desert is indicated by arrows. The color of the arrow generally ranges from deep to shallow, reflecting the strong wind direction. (4) The symbols of the thematic elements should be clear, eye-catching and prominent. The base map symbols of the thematic maps should be elegant, not glaring, nor affect the display of other major elements on the map. The colors are coordinated. (5) The higher the saturation of the color, the more vivid the color. When the color distribution on the map is used to represent the distribution range of the object, generally small-area, small-distribution objects use more high-purity colors to make them stand out. When setting a large area, it should usually be weaker to avoid excessive and glaring. The non-graphic work area is light in color, and it is recommended to use cool or neutral colors. The working area of ​​the drawing is dark, and warm colors should be used. 3. Consistency requirements for thematic atlas The consistency of elements, content and decoration in the thematic maps is one of the important criteria for measuring the level of map mapping. Pay special attention to the following points. (1) The feature symbols in the legend should match the graphics and size of the feature symbols in the main image. (2) The opening page and the color and content in this article should be unified and corresponding. (3) The content of the catalogue and the title in the body should be the same. (4) The position of the scale should be unified. (5) If it is a national map, it should be noted that the thematic content of the drawings of the South China Sea Islands should be consistent with the main map. (6) The texts such as the title, author, and publisher on the cover, spine, title page, copyright, and pre-text are to be unified. Article source address: http://
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