Aggregate Convex Hull

Calculates and returns the convex hull for the values in a table specified by input parameter table_name.

Input Parameter Description

Name	Type	Description
table_name	string	Name of table on which the operation will be performed. Must be an existing table. It cannot be a collection.
x_column_name	string	Name of the column containing the x coordinates of the points for the operation being performed.
y_column_name	string	Name of the column containing the y coordinates of the points for the operation being performed.
options	map of string to strings	Optional parameters. The default value is an empty map ( {} ).

Output Parameter Description

Name	Type	Description
x_vector	array of doubles	Array of x coordinates of the resulting convex set.
y_vector	array of doubles	Array of y coordinates of the resulting convex set.
count	int	Count of the number of points in the convex set.
is_valid	boolean