cartodb4/observatory-extension
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

updated hyperlinks to platform location

Browse Source
This commit is contained in:
csobier 2016-05-10 09:41:03 -04:00
parent c96b6ef261
commit b6e0cfc8e3
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
doc/boundaries_functions.md
View File

@ -1,17 +1,17 @@
# Boundaries Functions
If you are using the [boundary methods](/dataobservatory/overview/#boundary-methods) from the Data Observatory, use the following functions to retrieve [Boundary](/dataobservatory/overview/#boundary-data) data. You can get global boundary geometries by point or polygon geometries.
If you are using the [boundary methods](/cartodb-platform/dataobservatory/overview/#boundary-methods) from the Data Observatory, use the following functions to retrieve [Boundary](/cartodb-platform/dataobservatory/overview/#boundary-data) data. You can get global boundary geometries by point or polygon geometries.
## OBS_GetGeometry(point_geometry, boundary_id)
The ```OBS_GetGeometry(point_geometry, boundary_id)``` function returns a boundary geometry defined as overlapping the point geometry and from the desired boundary set (e.g. Census Tracts). See the [Boundary ID glossary](/dataobservatory/glossary/#boundary-ids). This is useful for performing aggregations of points.
The ```OBS_GetGeometry(point_geometry, boundary_id)``` function returns a boundary geometry defined as overlapping the point geometry and from the desired boundary set (e.g. Census Tracts). See the [Boundary ID glossary](/cartodb-platform/dataobservatory/glossary/#boundary-ids). This is useful for performing aggregations of points.
#### Arguments
Name | Description
--- | ---
point_geometry | a WGS84 polygon geometry (the_geom)
boundary_id | a boundary identifier from the [Boundary ID glossary](/dataobservatory/glossary/#boundary-ids)
boundary_id | a boundary identifier from the [Boundary ID glossary](/cartodb-platform/dataobservatory/glossary/#boundary-ids)
#### Returns
@ -33,14 +33,14 @@ Should add the SQL API call here too
## OBS_GetGeometryId(point_geometry, boundary_id)
The ```OBS_GetGeometryId(point_geometry, boundary_id)``` returns a unique geometry_id for the boundary geometry that contains a given point geometry. See the [Boundary ID glossary](/dataobservatory/glossary/#boundary-ids). The function can be combined with ```OBS_GetGeometryById(geometry_id)``` to create a point aggregation workflow.
The ```OBS_GetGeometryId(point_geometry, boundary_id)``` returns a unique geometry_id for the boundary geometry that contains a given point geometry. See the [Boundary ID glossary](/cartodb-platform/dataobservatory/glossary/#boundary-ids). The function can be combined with ```OBS_GetGeometryById(geometry_id)``` to create a point aggregation workflow.
#### Arguments
Name |Description
--- | ---
point_geometry | a WGS84 polygon geometry (the_geom)
boundary_id | a boundary identifier from the [Boundary ID glossary](/dataobservatory/glossary/#boundary-ids)
boundary_id | a boundary identifier from the [Boundary ID glossary](/cartodb-platform/dataobservatory/glossary/#boundary-ids)
#### Returns