Application of Parallel Algorithm of 3D Landscape Model in 3D Landscape Visualization

Visibility analysis is an indispensable part of spatial analysis and plays an important role in many fields of geo-analysis and production and construction. However, the existing visibility analysis based on GIS often pays attention to the visibility of single point but ignores the composite visibility of multiple points, the visibility of static point but ignores the visibility of moving point, the visibility of straight line but ignores the visibility of curve. This paper mainly studies the application of parallel algorithm of 3D landscape model in 3D landscape visualization. This paper mainly uses the parallel algorithm of 3D landscape model to study and analyze the landscape design of mountainous agriculture in China, establishes the three-dimensional landscape visualization, fully expresses the regional culture in the planning and design of agricultural landscape, and improves the regional color by 19% in the landscape design of mountainous agriculture. The model adopts analytic hierarchy process (AHP) to analyze and collect the data of people's satisfaction with mountain agricultural landscape design, and revises the model with historical data to improve the accuracy of satisfaction evaluation. However, most landscape architecture in many areas of Our country follows the design trends of western architecture. These phenomena have not been controlled and the development speed is beyond people's imagination.