Digital Technology Promotes Innovation in Landscape Architecture Design Concepts and Practices

The traditional landscape garden planning and design mechanism has the defects of singularity of subject, unidirectionality of process, and contingency of method. Parametric landscape planning and design can quantitatively characterize the elements and optimize the design process. In this paper, we design a landscape garden routing design model based on ant colony Dijkstra’s combinatorial algorithm. Firstly, we analyze the role of parametric landscape planning and design mechanism, and carry out the specific application of parametric method in the whole process of landscape garden investigation and analysis, scheme conception, evaluation and construction management stage. Then the Dijkstra algorithm is optimized using the ant colony algorithm to realize the landscape environment road routing. The TSPLIB95 dataset is selected to carry out simulation experiments in Matlab2023 software environment and analyze the landscape quality of a mountain park. It is found that the shortest path planned by the algorithm in this paper is 304.78m, which is more than 200m less than the classical ant colony algorithm, and the fitness curve tends to be stabilized in only 69 iterations. Among the indicators in the factor layer of the mountain park, the highest score is C16 Scenic landscape accessibility, which is 8.65 points. The next highest scores were 8.65 for C16 Landscape Accessibility, followed by 8.35 and 8.34 for C8 Diversity of Ornamental Characteristics and C14 Enrichment and Harmonization of Landscape Elements, respectively. The final total score is 7.36 points, which is at a relatively satisfactory level.