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set1 = create_geo_set()             # creates an empty set
set2 = create_geo_set(g1, g2, g3)   # assuming that g1,g2,g3 are geopoints variables
set3 = set1 & g1 & g2               # set3 has 2 geopoints
set4 = set2 & set3                  # set4 has 5 geopoints

Operations on geopointsets

Accessing geopintset elements

The The count() function  function returns the number of geopoints variables contained by the set.

Use the indexing operator [] to access the geopoints variables contained in a set. For example:

print(type(set4))    # geopointset
print(count(set4))   # 5
g1 = set4[1]         # extract the first item
print(type(g1))      # geopoints
print(count(g1))     # 244 (if there are 244 points in this geopoints variable)

Operations on geopointsets

As a geopointset is simply a container for geopoints variables, most operations on a geopointset are performed on each of its component geopoints. For example, the following line of code with return a new geopointset where each geopoints variable has had the cos() function applied to its values:

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