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Peter Keum keum

  • King County - Wastewater Treatment Division
  • Seattle, WA
  • 00:37 (UTC -07:00)
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keum / Difference between EPSG 4326 & 3857
Last active September 8, 2023 18:26
EPSG 4326 and EPSG 3857 of Web Mercator
EPSG: 4326 uses a coordinate system on the surface of a sphere or ellipsoid of reference.
WGS 84 - Earth as Geoid. -Mercator
EPSG: 3857 uses a coordinate system PROJECTED from the surface of the
sphere. Earth as perfectly sphere. -Web Mercator
Think of it as this way:
EPSG 4326 uses a coordinate system the same as a GLOBE (curved surface).
EPSG 3857 uses a coordinate system the same as a MAP (flat surface).
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keum / .block
Created January 3, 2020 22:34
WA Parcel-lookup-Demo
license: mit
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keum / Import CSV file from URL
Last active July 5, 2019 18:46
Python Code using CSV & urllib for import csv STEP 1.
#Import CSV file from URL that has latest CSO status with location names and status
#This script only displays on the screen. Need to create list data into a file format.
#STEP 1
import csv
import urllib
#URL address that contains cso status with location name. This includes king county and SPU's data
url = "http://your.kingcounty.gov/dnrp/library/wastewater/cso/img/CSO.CSV"
webpage = urllib.urlopen(url)
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keum / .block
Last active April 4, 2019 02:18
fresh block
license: mit
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keum / .block
Last active April 3, 2019 03:56
maptime demo
license: mit
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keum / .block
Created April 2, 2019 22:57
fresh block
license: mit
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keum / .block
Created April 2, 2019 00:23
fresh block
license: mit
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keum / .block
Created March 28, 2019 20:43
fresh block
license: mit
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keum / .block
Last active March 26, 2019 03:34
Maptime Seattle Demo
license: mit
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keum / .block
Last active March 25, 2019 20:01
fresh block
license: mit