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authorChristopher Baines <cbaines8@gmail.com>2013-02-03 16:27:21 +0000
committerChristopher Baines <cbaines8@gmail.com>2013-02-03 16:27:21 +0000
commit27221b6d4ff9655f8757c60bc2cd6b625a5f99ce (patch)
tree933423f3ad27b57bd4c3c7dbb57267e4b3ff986b /resources
parente923b225e830cf83367f720cd6be3859e15bf404 (diff)
downloadhealth-map-27221b6d4ff9655f8757c60bc2cd6b625a5f99ce.tar
health-map-27221b6d4ff9655f8757c60bc2cd6b625a5f99ce.tar.gz
Data URI stuff
Diffstat (limited to 'resources')
-rw-r--r--resources/map.js56
1 files changed, 52 insertions, 4 deletions
diff --git a/resources/map.js b/resources/map.js
index abc362f..acb1322 100644
--- a/resources/map.js
+++ b/resources/map.js
@@ -1,3 +1,40 @@
+function getDataURIForRegion(self, region) {
+ var dataURI = "data:text/csv,";
+ dataURI += "Name,Size of Catchment Area,Population of Catchment Area%0A";
+
+ _.each(self.amenities["hospital"], function(amenity) {
+ var catchmentArea = self.catchmentAreas[amenity.id];
+ var settlements = catchmentArea.settlements;
+
+ var format = new OpenLayers.Format.GeoJSON;
+
+ var sumOfDistances = 0;
+ var maxDistance = 0;
+
+ var healthCenterGeo = format.parseGeometry(catchmentArea.geometry);
+
+ _.each(catchmentArea.settlements, function (settlement) {
+ var settlementGeo = format.parseGeometry(catchmentArea.geometry);
+ });
+
+ var openLayersGeo = format.parseGeometry(catchmentArea.geometry);
+
+ var areaInSquareMeters = openLayersGeo.getGeodesicArea();
+
+ var population = 0;
+ var numberOfSettlementsWithoutPopulation = 0;
+
+ _.each(settlements, function(settlement) {
+ if (typeof settlement.properties.population != "undefined") {
+ population += parseInt(settlement.properties.population);
+ }});
+
+ dataURI += amenity.properties["name"] + "," + areaInSquareMeters +"," + population +"%0A";
+ });
+
+ return dataURI;
+}
+
function initMap(self) {
self.tileLayer = L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
maxZoom: 18,
@@ -10,7 +47,8 @@ function initMap(self) {
layers: [self.tileLayer],
}).setView([12.4822, -11.9463], 11);
- self.amenities = ["hospital", "doctors", "dentist"];
+ self.amenitiesShown = ["hospital", "doctors", "dentist"];
+ self.amenities = {};
self.amenityLayers = {}; // contains the layers for each amenity type
self.catchmentAreas = {};
@@ -147,6 +185,8 @@ function displayMap(self, map) {
weight: 10};
},
onEachFeature: function(feature, layer) {
+ self.amenities[amenity].push(feature);
+
var center;
if (feature.geometry.type === "Point") {
layer.options.icon = hospitalIcon;
@@ -240,6 +280,14 @@ function displayMap(self, map) {
var query = createQueryData(bbox);
+ if (typeof self.amenities != "undefined") {
+ console.log(getDataURIForRegion(self, "region"));
+ }
+ self.amenities = {};
+ _.each(self.amenitiesShown, function(amenity) {
+ self.amenities[amenity] = [];
+ });
+
// Convert the data to GeoJSON
self.converter.fetch("http://overpass-api.de/api/interpreter", query, zoom, function(data) {
if (jQuery.isEmptyObject(self.amenityLayers)) {
@@ -261,12 +309,12 @@ function displayMap(self, map) {
// Now deal with the catchment areas
self.catchmentAreaLayer = createCatchmentAreaLayer(data);
- _.each(self.amenities, function(amenity, i) {
+ _.each(self.amenitiesShown, function(amenity, i) {
self.amenityLayers[amenity] = createAmenityLayer(data, amenity);
map.addLayer(self.amenityLayers[amenity]);
self.layersControl.addOverlay(self.amenityLayers[amenity],
- self.amenities[i].charAt(0).toUpperCase() + self.amenities[i].slice(1));
+ self.amenitiesShown[i].charAt(0).toUpperCase() + self.amenitiesShown[i].slice(1));
});
map.addLayer(self.catchmentAreaLayer);
@@ -275,7 +323,7 @@ function displayMap(self, map) {
self.catchmentAreaLayer.clearLayers();
self.catchmentAreaLayer.addData(data);
- _.each(self.amenities, function(amenity, i) {
+ _.each(self.amenitiesShown, function(amenity, i) {
// Update the data for each amenity layer
self.amenityLayers[amenity].clearLayers();
self.amenityLayers[amenity].addData(data);