internal | R Documentation |
Descriptions of the parameters and a typical return value for the provided functions.
bbox |
A vector of four numbers indicating bounding box to limit output
features to, e.g. |
blue_line_key |
A positive whole number of the stream blue line key. |
collection_id |
A character string of the collection id. |
downstream_route_measure |
A positive number of the river metre. |
end_measure |
An integer of the distance in meters upstream from the river mouth to end at. |
epsg |
A positive whole number of the epsg to transform features to. |
function_id |
A character string of the function id. |
filter |
A named vector or list of the filter(s) to apply, where the list
names correspond to column names and the list values correspond to the desired
value, e.g. |
interval_length |
An integer of the interval distance in meters. |
limit |
A positive whole number indicating the maximum number of features to return. |
offset |
A positive whole number indicating the offset of start of returned results. |
parameters |
A named list of the parameters and values for a specific function. |
properties |
A vector of strings of the column names to include. If NULL (default), all columns are retained. |
sortby |
A string that sorts the response items by a property. Default is ascending but property name can be prepended with '-' to indicate descending. |
groupby |
A string of the property name (i.e., column name) to group response features by. This would typically be used with an aggregate transform function. |
srid |
A positive whole number of the epsg of the coordinates. |
start_measure |
An integer of the distance in meters upstream from the river mouth to start from. |
tolerance |
A number of the tolerance in m. |
transform |
A character vector with the name of the valid transform function followed by the parameter values (e.g. c("ST_Simplify", 100)) |
x |
A number of the x coordinate. |
y |
A number of the y coordinate. |
nocache |
A flag specifying whether or not to cache results. |
An sf object.
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