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geo.xml

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Fichier XML de 17 Ko (application/xml)
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<?xml version="1.0" encoding="UTF-8"?>
<Module> 
<ModulePrefs title="Spreadsheets Geocoder"
             description="Geocoding is the process of converting an address to a coordinate pair, and its necessary to plot data on a map. This gadget helps you geocode addresses from your spreadsheet, and gives you an output thats easy to copy-and-paste back into your sheet."
             author="Pamela Fox"
             author_affiliation="Google Inc."
             author_email="pamela.fox+coolgadget@gmail.com"
             screenshot="http://pamela.fox.googlepages.com/screenshot_spreadsheetsgeocodergadge.jpg"
             thumbnail="http://pamela.fox.googlepages.com/thumbnail_spreadsheetsgeocodergadget.jpg" 
              width="600" height="600"> 
<Require feature="idi"/>
<Require feature="locked-domain" />
<Require feature="grid"/>
</ModulePrefs>
<UserPref name="_table_query_url" display_name="Data source url" 
          required="true"/>
<UserPref name="_table_query_refresh_interval" 
          display_name="Data refresh interval (minutes)" 
          default_value="0" datatype="enum" required="false">
<EnumValue value="0" display_value="Do not refresh"/>
<EnumValue value="60" display_value="1"/>
<EnumValue value="300" display_value="5"/>
<EnumValue value="1800" display_value="30"/>
</UserPref>
<Content type="html"><![CDATA[
<style type="text/css">
table {
  border: 0px;
  border-spacing:0;
  margin:0px;
}
td {
  border:0px;
  padding:0px;
  margin:0px;
  height:40px;
  text-align:center;
  font-size:11pt;
}
body {
  font-family:Arial, sans serif;
  font-size:11pt;
}
</style>

<div style="margin-left: 10px;">
<p>
Intructions: Once you click the button below, this will attempt to geocode
all the addresses in the range provided. It will place markers for each row,
at the latitude/longitude found. For those addresses that didn't geocode successfully,
it will place markers along the bottom of the map that you can drag to the correct location.
If you'd like to tweak the location of any particular marker, you can pick it up and drag it.
To zoom in closer to the location of a marker, just click its number in the sidebar.
</p>
<p>
When you've verified the addresses are correct, create two columns in your spreadsheet
and  copy and paste the values in the text area below the map into those columns.
</p>
<p>
<input type="button" onclick="startGeocoding();" value="Find Addresses"/>
</p>

<div id="map" style="width:65%; height:300px; 
border:2px solid 
black; float:left; clear:both;"></div>

<div id="infoDIV" style="overflow-y:auto; overflow-x: hidden; 
padding-left:10px; height:300px; float:left; border:2px solid black; width:25%">
 <table id="infoTABLE" width="150" style="border:2px; vertical-align:middle;"
cellpadding="0" cellspacing="0" valign="middle" align="center">
   <TBODY id="infoTABLEBODY">
   </TBODY>
 </table>
</div>

<br clear="all"/>
<textarea id="latlngTEXTAREA" style="margin-top: 10px; width:90%; height:50">Loading..</textarea>
</div>

<script src="http://www.google.com/jsapi?key=ABQIAAAA-O3c-Om9OcvXMOJXreXHAxTZqGWfQErE9pT-IucjscazSdFnjBTc_GPovcgWfia3_ru3nhdxaquODA" type="text/javascript"></script>
<script language="JavaScript">
/**
 * Load the APIs and run sendQuery when the load is complete
 */
var gadgetHelper = null;
var prefs = null;
var map = null;
var addresses = [];

_IG_RegisterOnloadHandler(loadVisualizationAPI);
      
function loadVisualizationAPI() { 
  google.load("visualization", "1");
  google.load("maps", "2.100");
  google.setOnLoadCallback(sendQuery);
}

/**
 * Create a query (shaped by the Gadget's user preferences), then 
 * send it to the spreadsheet data source. Also give the name of a 
 * function ("handleQueryResponse") to run once the spreadsheet data 
 * is retrieved:
 */
function sendQuery() {
  prefs = new _IG_Prefs(); // User preferences 
  gadgetHelper = new google.visualization.GadgetHelper(); 
  var query = gadgetHelper.createQueryFromPrefs(prefs);
  query.send(handleQueryResponse);
} 

/**
 * The core logic. Process the spreadsheet data however you want. 
 * In this case, we create HTML to be presented back to the user. 
 * We'll use inline comments to provide a step-by-step description 
 * of what we're doing:
 */
function handleQueryResponse(response) {
/*
  if (!gadgetHelper.validateResponse(response)) {
    return;     // Default error handling was done, just leave. 
  }
*/
  data = response.getDataTable();
  
  loadWords();
  loadMap();
}

function loadWords() {
  for (var row = 0; row < Math.min(data.getNumberOfRows(), 10000); row++) {
    var rowObj = [];
    var formattedValue = data.getFormattedValue(row, 0);
    formattedValue = _hesc(formattedValue);
    addresses.push(formattedValue);
  }
}

/**
 * Loads the map into div with 'map' id.
 * Adds controls, sets initial center.
 * Initializes geocoder.
 */
function loadMap() {
  map = new GMap2(document.getElementById("map"));
  map.addControl(new GSmallMapControl());
  map.addControl(new GMapTypeControl());
  map.setCenter(new GLatLng(37.0625,-95.677068), 3);
  geocoder = new GClientGeocoder();
  GEvent.addListener(map, "zoomend", function() {
    clearPolys();
  });
  baseIcon = new GIcon();
  baseIcon.shadow = "http://www.google.com/mapfiles/shadow50.png";
  baseIcon.iconSize = new GSize(20, 34);
  baseIcon.shadowSize = new GSize(37, 34);
  baseIcon.iconAnchor = new GPoint(9, 34);
  baseIcon.infoWindowAnchor = new GPoint(9, 2);
  baseIcon.infoShadowAnchor = new GPoint(18, 25);
}

var map;
var entries;

var geocoder = null;
var numGeocodeReplies = 0;
var columns = new Array();
var baseIcon = null;
var bounds = null;
var unfoundMarkers = new Array();
var markerOverlays = new Array();
var highlightCircle = null;
var loaded = false;
var polys = [];

function clearPolys() {
  for (var i = 0; i < polys.length; i++) {
    try {
      map.removeOverlay(polys[i]);
    } catch (e) {}
  }
  if (highlightCircle) {
    map.removeOverlay(highlightCircle);
  }
}

/**
* Creates a "circle" using 20-sided GPolygon at the given point
* Gpolygon object (highlightCircle) is global variable as there's only one
* highlighted marker at a time and we want to remove the previously 
* placed polygon before placing a new one.
* @param {GLatLng} markerPoint The point to highlight
*/
function highlight(markerPoint) {
  clearPolys();

  if (markerPoint != -1) { // indicating we're going to highlight a new marker
    var polyPoints = Array();
    var mapNormalProj = G_NORMAL_MAP.getProjection();
    var mapZoom = map.getZoom();
    var clickedPixel = mapNormalProj.fromLatLngToPixel(markerPoint, mapZoom);

    var polySmallRadius = 20;
    var polyNumSides = 20;
    var polySideLength = 18;

    for (var a = 0; a < (polyNumSides+1); ++a) {
      var aRad = polySideLength * a * (Math.PI/180);
      var polyRadius = polySmallRadius;
      var pixelX = clickedPixel.x + polyRadius * Math.cos(aRad);
      var pixelY = clickedPixel.y + polyRadius * Math.sin(aRad);
      var polyPixel = new GPoint(pixelX,pixelY);
      var polyPoint = mapNormalProj.fromPixelToLatLng(polyPixel,mapZoom);
      polyPoints.push(polyPoint);
    }

    highlightCircle = new GPolygon(polyPoints, "#000000", 2, 
                                  0.0, "#666666", 0.5);
    polys.push(highlightCircle);
    map.addOverlay(highlightCircle);
  }
}


function geocodeAll() {
 if (numGeocodeReplies < addresses.length) {
   var address = addresses[numGeocodeReplies];
   var label = addresses[numGeocodeReplies];
   geocoder.getLocations(address, function(response) {
     addressResolved(response, address, label);}
   );
 } else {
   // zoom and center map accordingly
   map.setZoom(map.getBoundsZoomLevel(bounds));
   var clat = (bounds.getNorthEast().lat() + 
              bounds.getSouthWest().lat()) /2;
   var clng = (bounds.getNorthEast().lng() + 
               bounds.getSouthWest().lng()) /2;
   map.setCenter(new GLatLng(clat,clng));
   showUnfoundMarkers();
   loaded = true;
   updateLatLngs();
 }
}

function updateLatLngs() {
  var latlngs = "";
  for (var i =0; i < markerOverlays.length; i++) {
    if (markerOverlays[i].isFound) {
      latlngs += markerOverlays[i].getLatLng().lat().toFixed(6) + "\t" + markerOverlays[i].getLatLng().lng().toFixed(6) + "\n";
    } else {
      latlngs += "Not \t Found \n";
    }
  }
  document.getElementById("latlngTEXTAREA").value = latlngs;
}

/**
 * Adds a row to the table of locations
 * @param columnLat {Number} Latitude of location
 * @param columnLng {Number} Longitude of location
 * @param label {String} Identifying label for the location
 * @param entryNum {Number} Row # of location in the feed
 */
function addTableRow(columnLat, columnLng, label, entryNum, isFound){
  var latlngTABLEBODY = document.getElementById("latlngTABLEBODY");
  var infoTABLEBODY = document.getElementById("infoTABLEBODY");

  var entryTR = document.createElement("TR");
  var entryInfoTR = document.createElement("TR");

  entryTR.setAttribute("height","30");
  entryInfoTR.setAttribute("height","30");
  entryTR.setAttribute("valign","middle");
  entryInfoTR.setAttribute("valign","middle");

  var columnLatTD = document.createElement("TD");
  var columnLngTD = document.createElement("TD");
  var labelTD = document.createElement("TD");
  var iconTD = document.createElement("TD");

  entryTR.id = "entryTR" + entryNum;
  entryInfoTR.id = "entryInfoTR" + entryNum;
  columnLatTD.id = "latTD" + entryNum;
  columnLngTD.id = "lngTD" + entryNum;
  labelTD.id = "labelTD" + entryNum;
  iconTD.id = "iconTD" + entryNum;
  labelTD.style.paddingLeft = "3px";

  columnLatTD.appendChild(createTextDiv(columnLat));
  columnLngTD.appendChild(createTextDiv(columnLng));
  labelTD.appendChild(createTextDiv(label));
  if(isFound) {
    iconTD.style.backgroundColor = "#9ce71a";
  } else { 
    iconTD.style.backgroundColor = "#ff0000";
  }
  var iconSPAN = document.createElement("span");
  var number = entryNum + 1;
  iconSPAN.innerHTML = number;
  var iconA = document.createElement("A");
  iconA.href = "#bottom";
  iconA.onclick = function() {
    if (isFound) {
      map.setCenter(markerOverlays[entryNum].getLatLng(), 14);
    } else {
      map.setCenter(markerOverlays[entryNum].getLatLng(), 9);
      isFound = true;
    }
  };
  iconA.appendChild(iconSPAN);
  iconTD.appendChild(iconA);

  entryTR.onmouseover = function() { 
     highlightMarker(entryNum,false);
     highlightRow(entryNum, false);
     return true;};
  entryInfoTR.onmouseover = function() { 
     highlightMarker(entryNum,false);
     highlightRow(entryNum, false);
     return true;};

//  entryTR.appendChild(columnLatTD);
//  entryTR.appendChild(columnLngTD);
  entryInfoTR.appendChild(iconTD);
  entryInfoTR.appendChild(labelTD);

  //latlngTABLEBODY.appendChild(entryTR);
  infoTABLEBODY.appendChild(entryInfoTR);
}

function createTextDiv(text) {
  var div = document.createElement("div");
  //div.style.overflow = "hidden";
  //div.style.height = "30px";
  div.appendChild(document.createTextNode(text));
  return div;
}

/**
 * Removes the output generated from the previous result.
 */
function removeOldResults() {
  columns.length=0;
 
  var dataTBODY = document.getElementById('dataTBODY');
  while (dataTBODY.firstChild) {
    dataTBODY.removeChild(dataTBODY.firstChild);
  }
  var columnsTBODY = document.getElementById('columnsTBODY');
  while (columnsTBODY.firstChild) {
    columnsTBODY.removeChild(columnsTBODY.firstChild);
  }
}

/* Creates a marker at the given point with the given label
 * and icon corresponding to row # (entryNum).
 * Assigns listeners for mouse movement/clicks and drags.
 * @param point {GLatLng} Representing desired point of marker placement
 * @param entryNum {Number} Representing current entry number in feed
 * @return marker {GMarker} Marker created
 */
function createMarker(point, entryNum, isFound) {
  // Create a lettered icon for this point using our icon class
  var nIcon = new GIcon(baseIcon);
  var number = entryNum + 1;
  if(isFound) {
    nIcon.image = "http://gmaps-samples.googlecode.com/svn/trunk/markers/green/"
                  + "marker" + number + ".png";
    nIcon.imageSame = nIcon.image;
  } else {
    nIcon.image = "http://gmaps-samples.googlecode.com/svn/trunk/markers/red/"
                + "marker" + number + ".png";
  }

  var label = addresses[entryNum];
  var marker = new GMarker(point, {icon:nIcon, draggable:true});
  GEvent.addListener(marker, "mouseover", function() {
    highlightRow(entryNum,true);
    highlight(marker.getPoint());
  });
  
  GEvent.addListener(marker, "mouseout", function() {
    highlightRow(-1,false);
    highlight(-1);
  });
  
  GEvent.addListener(marker, "click", function() {
    highlight(marker.getPoint());
    marker.openInfoWindowHtml("<b>" + label + "</b>");
  });

  GEvent.addListener(marker, "drag", function() {
//    highlight(marker.getPoint());
  });

  GEvent.addListener(marker, "dragend", function() {
    marker.isFound = true;
    setTimeout(updateLatLngs, 2000);
  });
  marker.isFound = isFound; 
  markerOverlays[entryNum] = marker;

  return marker;
}

/**
 * Iterates through the array of unfound locations,
 * adding a marker in the bottom left corner of map for each one.
 */
function showUnfoundMarkers() {
  var currentBounds = map.getBounds();
  var mapNormalProj = G_NORMAL_MAP.getProjection();
  var mapZoom = map.getZoom();

  var lowerPixel = mapNormalProj.fromLatLngToPixel(currentBounds.getSouthWest(),
                                                   mapZoom);
  var pixelY = lowerPixel.y - 40;

  for (var i = 0; i < unfoundMarkers.length; ++i) {
    var pixelX = lowerPixel.x + i*25 + 20;
    var markerPixel = new GPoint(pixelX,pixelY);
    var markerLatLng = mapNormalProj.fromPixelToLatLng(markerPixel,mapZoom);
    var marker = createMarker(markerLatLng, unfoundMarkers[i], false);
    map.addOverlay(marker);
  }
}

/**
 * Calls highlight on the point of the marker for the row # passed in
 * @param {Number} entryNum Row # of desired location marker to highlight
 */
function highlightMarker(entryNum){
  if (!loaded) return;
  highlight(markerOverlays[entryNum].getPoint());
}

/**
 * Highlights row N in the table, un-highlights all other rows.
 * Also scrolls to that row in table, in case table is very long.
 * @param entryNum {Number} Row # of desired location to highlight
 */
function highlightRow(entryNum, fromMarker) {
  if (!loaded) return;
  var hColor = "#dddddd";
  for(var i = 0; i < addresses.length; ++i) {
    //document.getElementById("latTD"+i).style.backgroundColor = "#FFFFFF";
    //document.getElementById("lngTD"+i).style.backgroundColor = "#FFFFFF";
    document.getElementById("labelTD"+i).style.backgroundColor = "#FFFFFF";
  }
  if(entryNum > -1) { // so we can use this function to un-highlight all
    //document.getElementById("latTD"+entryNum).style.backgroundColor = hColor;
    //document.getElementById("lngTD"+entryNum).style.backgroundColor = hColor;
    document.getElementById("labelTD"+entryNum).style.backgroundColor = hColor;
  }
  if(entryNum > -1 && fromMarker) {
    var infoDiv = document.getElementById("infoDIV");
    infoDiv.scrollTop = 40*entryNum - 180;
  } 
}

/**
 * Resets variables created from previous geocoding attempts.
 * Calls findAddress on first row in feed
 */
function startGeocoding() {
  // reset variables, arrays, DOM elements
//  var latlngTABLEBODY = document.getElementById("latlngTABLEBODY");
  var infoTABLEBODY = document.getElementById("infoTABLEBODY");
  while(infoTABLEBODY.firstChild){
    //latlngTABLEBODY.removeChild(latlngTABLEBODY.firstChild);
    infoTABLEBODY.removeChild(infoTABLEBODY.firstChild);
  }

  unfoundMarkers.length = 0;
  markerOverlays.length = 0;
  numGeocodeReplies =0;
  map.clearOverlays();

  // We use bounds so we can rezoom and recenter map to fit new points
  bounds = new GLatLngBounds();
  // Geocode the first address
  window.setTimeout(geocodeAll, 50);
}

/**
 * Finds address and label of current row entryNum,
 * calls geocoder.getLatLng and defines the callback function
 * which either creates a marker if the address is found, 
 * or adds that row to the not found array.
 * Sends off next geocode request, if there is any.
 * @param entryNum {Number} Row # of feed to search for
 */
function addressResolved(response, address, label) {
  var delay = 0;
  if (response.Status.code == 620) {
    // Too fast. Try again, with a small pause.
    delay = 500;
  } else {
    if (response.Status.code == 200) {
      log('creating marker');
      // Success. Do something with the address.
      place = response.Placemark[0];
      point = new GLatLng(place.Point.coordinates[1],
                          place.Point.coordinates[0]);
      var marker = createMarker(point, numGeocodeReplies, true);
      map.addOverlay(marker);
      addTableRow(point.lat(), point.lng(), label, numGeocodeReplies, true);
      bounds.extend(point);
    } else {
      // Bad geocode.
      addTableRow("", "", label, numGeocodeReplies, false);
      unfoundMarkers.push(numGeocodeReplies);
    }
    numGeocodeReplies++;
  }
   
  window.setTimeout(geocodeAll, delay);
}

function log(thing) {
  if (window["console"]) {
    console.log(thing);
   }
}
</script>

  ]]>
  </Content>
</Module> 


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