walkermatt

;; fizzbuzz without conditionals in Clojure

; Simple patten matching using a single map lookup
(defn fizzbuzz [x]
  (let [v [(= (mod x 3) 0) (= (mod x 5) 0)]]
    ({[true false] "fizz"
      [false true] "buzz"
      [true true] "fizzbuzz"
      [false false] x} v)))

walkermatt

var str = "POLYGON((left top,right top,right bottom,left bottom,left top))";
var bbox = {left: 10, top: 30, right: 20, bottom: 40};
str.replace(/[a-z]+/g, function(s) {return bbox[s];});

walkermatt

function hexToRgb(hex) {
  return 'rgb(' + hex.slice(1).match(/../g).map(c => parseInt(c, 16)) +')'
}

walkermatt

MapInfo requires a mapinfo.mapinfo_mapcatalog relation to be present in a PostGIS database in order to load relations. The spatialtype column is a float which indicates the geometry type of the relation:

19.0 = POINT, MULTIPOINT
19.1 = LINESTRING, MULTILINESTRING
19.2 = POLYGON, MULTIPOLYGON
19.3 = GEOMETRY

walkermatt

SELECT 'CREATE INDEX ' || quote_ident(f_table_name || '_geom_idx') || ' ON ' || quote_ident(f_table_schema) || '.' || quote_ident(f_table_name) || ' USING GIST (' || quote_ident(f_geometry_column) || ');' AS SQL
FROM geometry_columns
WHERE f_table_name IN ('topographicarea',
                       'topographicline');

walkermatt

// Extent of the map in units of the projection (these match our base map)
var extent = [-3276800, -3276800, 3276800, 3276800];

// Fixed resolutions to display the map at (pixels per ground unit (meters when
// the projection is British National Grid))
var resolutions = [1600,800,400,200,100,50,25,10,5,2.5,1,0.5,0.25,0.125,0.0625];

// Define WGS84 projection (copied from http://epsg.io/3857.js)
proj4.defs("EPSG:3857","+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext  +no_defs");

walkermatt

import json
import lxml
from lxml import objectify

class ObjectifyJSONEncoder(json.JSONEncoder):
    """ JSON encoder that can handle simple lxml objectify types,
        based on the original: https://gist.github.com/aisipos/345559, extended
        to accommodate encoding child nodes with the same tag name as a list.

        Usage:

walkermatt

setxkbmap gb && sudo apt-get install git-core gedit && cd && git clone https://github.com/AstunTechnology/osgis-ol3-leaflet.git ; cd osgis-ol3-leaflet ; gedit ol3/ol3.js & firefox http://astuntechnology.github.io/osgis-ol3-leaflet/ &

walkermatt

walkermatt

<system.webServer>
    <httpProtocol>
        <customHeaders>
            <add name="Access-Control-Allow-Origin" value="*" />
            <add name="Access-Control-Allow-Headers" value="Accept,Content-Type,X-Requested-With" />
        </customHeaders>
    </httpProtocol>
</system.webServer>