Abstract
Urban color is becoming more and more important in the construction of smart cities. This research mainly discusses the influencing factors of AHP‐based 3D regional color smart city construction. From the perspective of city managers, the factors selected in the article that affect the choice of urban color planning are economic development, urban culture, designer’s ideas, customs, and natural environment. We use GIS to comprehensively collect basic geographic information data of the city. We use CityEngine and GIS data to quickly create virtual cities. When constructing the AHP model, once the weight value of each factor in the color‐influencing factors of the entire smart city is obtained, the total ranking of the levels needs to be checked once. After that, the study uses the MATLAB program platform to realize the parametric design of the main color of the city, including the control of the changes in the spatial structure of the main color of the city, followed by the control of the transition and coordination mode between the key elements of the city color. Explorer provides comprehensive and rich 3D digital city roaming browsing, query positioning, analysis, and other functions; supports the loading of multiple data sets from the Internet and local; and can dynamically load massive 3D city simulation models above and below ground. Finally, the design of the urban architectural color or improvement plan is further carried out, and the urban color main color design plan is finally implemented in the implementation of the urban architectural color, which effectively realizes the quantitative control of the urban color. When evaluating smart city color resources, the color weight value of public facilities is 0.147, which accounts for 14.7% of the total weight value. This research helps to enhance the regional and local cultural characteristics.
Highlights
Modern urban color planning is more common in some developed countries in Europe and America
The study uses the MATLAB program platform to realize the parametric design of the main color of the city, including the control of the changes in the spatial structure of the main color of the city, followed by the control of the transition and coordination mode between the key elements of the city color
Each ranking in the judgment matrix has satisfactory consistency, passing the consistency test of the single ranking and the overall consistency test of the total ranking
Summary
Modern urban color planning is more common in some developed countries in Europe and America. Its purpose is to improve the urban environment and control urban color pollution, and at the same time, it is a means to continue the urban context. Most of these color plans are not for the whole city but for specific plots. The color of the central city focuses on historical continuity, and the new city focuses on modernity. The establishment of a smart city is conducive to the sustainable development of the city’s economy, while improving the development of urban information technology, it can promote the development of emerging industries in the city. Under the background of uneven urban color quality, how to correctly analyze the urban color environment, guide urban color planning, and use high-quality colors to shape the city spirit and promote regional culture are the main direction of this research and have farreaching significance
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