[Retracted] The Application of Public Art Design Based on Digital Technology in Urban Landscape Environmental Monitoring

Table 2

Three-dimensional openness characteristics of viewpoint located in different land use types.

Sample area type	Obstacle step number	Step height-width ratio	Fluctuation frequency	Fluctuation frequency
Residential area	3.795	1.0411	0.1612	12.0865
Public service area	3.0781	0.496	0.0844	15.1729
Commercial areas	2.7884	1.2551	0.1169	13.283
Industrial area	2.649	0.619	0.1278	14.943
Reserved land	3.6637	0.4787	0.1584	1.7076
Public green area	2.5013	0.3378	0.183	2.5352