mgiraldo

mgiraldo

mgiraldo

#A web maps primer

I was invited to the National Library of Colombia's 2^nd Digital Book Week as a speaker and to give a workshop on digital mapping tools. I thought it would be useful to share that workshop since it encompasses a lot of different processes and tools that make digital cartography today very accessible. It is a primer on working with various free web mapping tools so you can make your own awesome maps.

##TL;DR You will make [this][result]. This tutorial assumes you have a digitized map and some data you want to overlay on it. The general steps covered are:

1. geo-referencing the scanned map so that web tiles can be generated
2. generating GeoJSON data to be overlaid
3. creating a custom base map (to serve as reference/present day)

mgiraldo

Name,Photo,Address,Term,Office,Page,Directory Occupation,Latitude,Longitude
Salvador Camacho Roldán ,http://upload.wikimedia.org/wikipedia/commons/c/cd/SalvadorCamacho.jpg,"361, Calle 10. — 178, Calle 12.",1868-1869 / 1871,President,59,comerciante,4.598056,-74.075833
Miguel Antonio Caro Tobar,http://upload.wikimedia.org/wikipedia/commons/5/5c/Miguel_Antonio_Caro_2.jpg,"127, Carrera 11.",1892-1898,Vicepresident,64,literato,4.598056,-74.075833
Antonio Basilio Cuervo,http://upload.wikimedia.org/wikipedia/commons/b/b3/Antonio_Basilio_Cuervo.jpg,"256, Calle 12. — 201, Carrera 3.",1893,Minister,86,talabartero,4.598056,-74.075833
Carlos Holguín Mallarino,https://upload.wikimedia.org/wikipedia/commons/7/77/Carlos_Holgu%C3%ADn_Mallarino.jpg,"208, Carrera 8.",1888-1892,Acting President,154,Ministro de Estado,4.598056,-74.075833
Rafael Núñez Moledo,https://upload.wikimedia.org/wikipedia/commons/0/09/Rafael_Nunez_cph.3a03388.jpg,"157, A, Carrera 7.",1880-1882 / 1884-1886 / 1887 -1888 / 1892-1894,President,222,Presidente 

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mgiraldo

Keybase proof

I hereby claim:

• I am mgiraldo on github.
• I am mgiraldo (https://keybase.io/mgiraldo) on keybase.
• I have a public key whose fingerprint is 28DB EC43 3E95 F205 173B 633B ED50 1218 0315 0A3D

To claim this, I am signing this object:

mgiraldo

mgiraldo

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    RETURNS SETOF record AS
$$
DECLARE
    lid_new    integer;
    dmn_number integer := 1;
    outr       record;
    innr       record;
    r          record;
BEGIN

mgiraldo

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