In this third example on spatial analysis using Overlays in ‘Spatial Manager’ we will apply the “Intersect” operator. This operator determines the geometries that overlap in the Source and Overlay object groups. Anything that does not overlap is discarded from the output, so the resulting objects represent what the Source and Overlay have in common. The resulting data table will include the data of both the Source and Overlay objects
Related videos: AutoCAD / BricsCAD / ZWCAD / GstarCAD / Desktop
Using Overlays to find overlapped elements in ‘Spatial Manager’
Use “Intersect” in order to find points or lines that lie within a polygon, to determine the places where two linear objects overlap, or to find the common areas between two polygon sets. For example, find tree point objects that are within park polygons, or, as you can see in the above videos, the parcels located total or partially inside a set of urban zones
First, by means the ‘Spatial Manager’ advanced selection tools, in this case “Selection by Query”, we find the urban areas with a certain Zone qualification (“R1” in this sample). If we now apply an Intersection Overlay operation between the selected Zones and the objects included in the “Parcels” layer, we will obtain a new layer that will include the polygons of the Parcels that are located (totally or partially) inside the “R1” Zones
Enjoy the videos
Note: Overlays functionality can be found in the Professional edition only
Learn more about working with Overlays in the ‘Spatial Manager’ technical Wiki:
