UM Geospatial Digital Special Collections

Citation: Miami-Dade County, Florida (2016). Miami-Dade Park Facilities [gis dataset]. Miami-Dade County. https://gis-mdc.opendata.arcgis.com/datasets/MDC::park-facility. last updated: 2024-05-01 (update frequency: As Needed). Abstract: A point feature class of all park facilities (County, Municipal, State or National) within Miami-Dade County. This layer was created merging the County Parks, Municipal Parks, State and Federal parks feature classes. Key words: Florida, Miami-Dade County, MDC, Environment, Park Facility, Parks, Recreation, Open Spaces, Wellness, Infrastructure Open Geospatial Consortium Standards: vector tiles | WMS (coming soon) | WFS (coming soon) ESRI Standards: ArcGIS MapServer | ArcGIS FeatureServer | Open in ArcGIS Portal for GDSC Analytical Functions: gdsc_count_within(table=mdc_park_facilities,lat=25.718,lng=-80.279,radius=5280) gdsc_nearest_neighbor(table=mdc_park_facilities,lat=25.718,lng=-80.279,id=name) ETL documentation

ETL for mdc_park_facilities

######### # GDSC ETL is performed in two steps: shell script to ETL data into postgres # and then additional transformations with SQL in postGIS (if needed). #### ######### # Step 1 - bash script (pseudo code) #### # create directory structure and move into it mkdir -p /data/mdc_park_facilities/{download,etl} && cd /data/mdc_park_facilities # set update flag based on last update and update frequency do_update=0 if date() < last_update + update_frequency else do_update = 1 # download if update flag is set: if do_update == 1 then wget -O download/mdc_park_facilities.json 'https://gisweb.miamidade.gov/arcgis/rest/services/Parks/MD_Parks305/MapServer/0/query?where=1%3D1&outFields=*&outSR=4326&f=json' # replace column names Shape__Length and Shape__Area to avoid conflict when # providing as service on ArcServer. sed -i 's/Shape__Length/shape_length/gI; s/Shape__Area/shape_area/gI' download/mdc_park_facilities.json # load into postGIS with: ogr2ogr -lco GEOMETRY_NAME=geom -f PostgreSQL PG:"" download/mdc_park_facilities.json -nlt point -nln mdc_park_facilities ######### # Step 2 - SQL script (pseudo code): #### # remove duplicate points and make geometries valid: UPDATE mdc_park_facilities SET geom=ST_MakeValid(ST_RemoveRepeatedPoints(geom));" # add local geometry column and reproject existing geometries into local EPSG: SELECT AddGeometryColumn ( 'mdc_park_facilities', 'geom_local',2236,'point',2 ); UPDATE mdc_park_facilities SET geom_local=ST_Transform(geom,2236); CREATE INDEX mdc_park_facilities_geom_local_idx ON mdc_park_facilities USING GIST (geom_local); NOTIFY pgrst, 'reload schema';"