UM Geospatial Digital Special Collections

Citation: Miami Dade County (2018). Miami-Dade Municipal Zoning [gis dataset]. Miami Dade County. https://gis-mdc.opendata.arcgis.com/datasets/MDC::municipal-zone/. last updated: 2024-05-16 (update frequency: 1 year). Abstract: A polygon feature class of Miami-Dade County Municipal Zoning Districts. Updated: Annually Key words: Florida, Miami-Dade County, MDC, Municipal, Property, Zoning Open Geospatial Consortium Standards: vector tiles | WMS (coming soon) | WFS (coming soon) Analytical Functions: gdsc_get_attributes(tablename=mdc_municipal_zoning,lat=25.718,lng=-80.279,identifier=zone,attrs=[munic_name,zone,munic_id,zone_desc,short_desc,min_lot_size,density,floor_area_ration,min_lot_width,max_height,dev_code,mix_use,general_lu_type,max_lot_cov],normal='') ETL documentation

ETL for mdc_municipal_zoning

######### # 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_municipal_zoning/{download,etl} && cd /data/mdc_municipal_zoning # 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 ogr2ogr -nln mdc_municipal_zoning download/mdc_municipal_zoning.json "https://services.arcgis.com/8Pc9XBTAsYuxx9Ny/arcgis/rest/services/MunicipalZone_gdb/FeatureServer/0/query?outFields=*&where=1%3D1&outSR=4326&f=geojson" # 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_municipal_zoning.json # load into postGIS with: ogr2ogr -lco GEOMETRY_NAME=geom -f PostgreSQL PG:"" download/mdc_municipal_zoning.json -nlt multipolygon -nln mdc_municipal_zoning ######### # Step 2 - SQL script (pseudo code): #### # remove duplicate points and make geometries valid: UPDATE mdc_municipal_zoning SET geom=ST_MakeValid(ST_RemoveRepeatedPoints(geom));" # add local geometry column and reproject existing geometries into local EPSG: SELECT AddGeometryColumn ( 'mdc_municipal_zoning', 'geom_local',2236,'multipolygon',2 ); UPDATE mdc_municipal_zoning SET geom_local=ST_Transform(ST_Multi(geom),2236); CREATE INDEX mdc_municipal_zoning_geom_local_idx ON mdc_municipal_zoning USING GIST (geom_local); NOTIFY pgrst, 'reload schema';"