Coordinates Conversion & more

Disclaimer

This application is not suitable for any survey related work. Use it for academic purpose only.

Purposes

Example Usage

Collect Mobile phone GPS data points as latitude and longitude.
Convert to State Plane x, y coordinates. Plot in CAD.
Or read gpx file and convert to x, y and plot to CAD.
Example gpx file

Methodology

Uses proj4js library

Options

  1. Paste coordinate pairs (into the input textarea)
  2. To plot the xy points (from the output textarea) to CAD
  • Delimiters assumed are comma, tab, space, pipe and semicolonChange delimiter (comma, space, |, etc.) for output
  • Glossary

    lat long : latitude and longitude WGS84

    xy : California State Plane III US Survey feet

    latitude (northings) corresponds to y

    longitude (eastings) corresponds to x

    CCSF-CS : City & County of San Francisco Coordinate System

    Example Data

    6010664.4	2106045.2
    6010099.7	2106437.5
    6010001.7	2106431.6
    6010085.5	2106003.7
    6010075.2	2106201.6
    6009514.6	2106172.0
    
    6009488.1	,	2106636.9
    6010928.5	,	2106327.3
    6010900.9	,	2106834.1
    6010341.0	,	2106684.6
    6010913.4	,	2106603.8
    6010363.0	,	2106220.5
    6010089.5	,	2105924.8
    
    37.76319191384049	-122.40739948756455
    37.76315485912821	-122.40826321973388
    37.76304158301982	-122.41020281801576
    +37.76298504515972	-122.411165697598
    +37.76331507572365	-122.40552518618118
    
    
    37.76561805666215,-122.41044831328381
    37.76555982448949,-122.41141395071188
    37.7642655706079,-122.41128964538521
    37.764158368015046,-122.41127719864144
    37.76432215991852,-122.41032363644133
    37.76429308360789,-122.40837100529708
    

    kml files

    Coordinates of points in a kml file can be tabulated and plotted.


    mun json files

    Coordinates of points in a "munsys json" file can be tabulated and plotted.

    {
    	"nodes":[
    	{"GID":"137203660", "NODE_ID":"266235", "MXASSETNUM":"N-331437", "NODE_STATUS":"ACT", "SYM_NAME":"H_MH_E", "NODE_TYPE":"MH", "RIM":"153.665518", "INVERT":"144.165518", "X":"6000709.65", "Y":"2113609.49"}, 
    	{"GID":"107625", "NODE_ID":"85981", "MXASSETNUM":"N-23658", "NODE_STATUS":"ACT", "SYM_NAME":"H_MH_E", "NODE_TYPE":"MH", "RIM":"163.750000", "INVERT":"154.250000", "X":"6000704.23", "Y":"2113447.32"}, 
    	{"GID":"103609", "NODE_ID":"14716", "MXASSETNUM":"N-26151", "NODE_STATUS":"ACT", "SYM_NAME":"H_MH_E", "NODE_TYPE":"MH", "RIM":"135.490000", "INVERT":"128.700000", "X":"6001310.29", "Y":"2113462.41"}
    	]
    }
    

    Limitations

    Use at your own risk

    Not suitable for any survey work

    Tested in Firefox, Chrome and IE

    May 2018 B. SHRESTHA

    2013 B. SHRESTHA

    Resources

    IOGP

    CCSF-CS13

    EPSG

    GPS Visualizer

    My GPS Files

    EGM96 Geoid

    VERTCON

    HTDP

    NGS Tools

    References

  • Brinker, R. C. & Minnick, R., The Surveying Handbook, 1995
  • Burkholder, E. F., The 3-D Global Spatial Data Model, 2018
  • Smith, J. R., Introduction to Geodesy, 1997
  • Wolfgang, T. & Muller, J., Geodesy, 2012