first commit

openstreetmap_parse.R

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+require(sqldf) # using sqldf to filter while loading very large data sets
+require(data.table)
+require(sf) # new simplefeature data class, supercedes sp in many ways, also includes gdal functions
+
+# setup workspace
+
+setwd("/Users/kidwellj/gits/mapping_worship")
+
+if (dir.exists("data") == FALSE) {
+  dir.create("data")}
+
+# Import filtered geojson files
+# Note: preferred option here is to use R package osmdata, but the server loads generated by this extraction are too high and cause timeouts. 
+# Processing data outside R using osmium for now: https://github.com/mapcomm/cookbook/blob/master/osm_extracts/osm_extract_pow_osmium_uk.sh
+
+osm_uk_points <- st_read(system.file("pow_osm.gpkg", package = "spData"))
+
+vector_filepath = system.file("data/osm-gb-2018Aug29_pow_osm.pbf", package = "sf")
+osm_uk_points = st_read(vector_filepath)
+
+rbind(osm_uk_points, ___)
+
+# Processing handled outside R for now in QGIS
+
+# Command for identifying candidates in OSM raw csv files: grep -E 'Masjid|islamic|muslim|mosque|Madrasah|Imam' *|wc -l