Questions tagged [predicates]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
0answers
24 views

Defining geometrical predicate [duplicate]

What are the exact differences between 'intersects' , 'contains', 'equals', 'touches' , 'overlaps' , 'within' and 'crosses' for attribute joints?
-2
votes
1answer
39 views

Seeking offline predicted travel time service, package or software? [closed]

I am looking for a service/package/sw that will return the predicted travel time (not real time) between two points and the departure day and time. The predicted travel time must take into account the ...
5
votes
1answer
4k views

How to efficiently determine which of thousands of polygons intersect with a linestring [duplicate]

I have a shapefile that contains several thousand Polygons/MultiPolygons and another shapefile that has a variable number of LineStrings. In the example below the blue Polygons are those that ...
2
votes
3answers
164 views

How to find the “first” intersection of a line with anything else

I am trying to find the first intersection of a line with anything else. By first intersection I mean the first intersection, if you follow the line in its direction from start to end. Check the ...