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Landscape Analysis - Introduction

Introduction

In a classic landscape analysis, we run various types of surface analyses. The result of these analyses will be various thematic maps, for example slope maps. In these analyses, we must have a terrain model of the surface, typically a SOSI map for the area.

Another type of analysis is overlay. In the old days, we laid transparent maps on top of each other on a light table. Then we could see what was on top of what. Now we solve this mechanically in a 3D model.

With overlay analysis, we can combine properties from many datasets. Then we can find areas that have a special set of properties, i.e., satisfy the criteria you specify.

In the context of zoning plans, this approach is used to find areas that are suitable for special purposes or exposed to special risks. For example, you can run an overlay between slope maps, exposure maps, and sun/shade to find the areas that are best suited for housing development.

We need a polygon that delimits the area for analysis. In the context of zoning plans, this will typically be the plan area.

Example Collection

See example collection for implementation:

Exercise 3.2 - Document lot quality