The data gives the normal average January minimum temperature in degrees Fahrenheit with the latitude and longitude of 56 U.S. cities. (For each year from 1931 to 1960, the daily minimum temperatures in January were added together and divided by 31. Then, the averages for each year were averaged over the 30 years.)
private function onCreationComplete() : void
{
var output : XML = new XML( "<dataset />" );
var sourceData : String = "Mobile, AL:44:31.2:88.5;Montgomery, AL:38:32.9:86.8;Phoenix, AZ:35:33.6:112.5;Little Rock, AR:31:35.4:92.8;Los Angeles, CA:47:34.3:118.7;San Francisco, CA:42:38.4:123.0;Denver, CO:15:40.7:105.3;New Haven, CT:22:41.7:73.4;Wilmington, DE:26:40.5:76.3;Washington, DC:30:39.7:77.5;Jacksonville, FL:45:31.0:82.3;Key West, FL:65:25.0:82.0;Miami, FL:58:26.3:80.7;Atlanta, GA:37:33.9:85.0;Boise, ID:22:43.7:117.1;Chicago, IL:19:42.3:88.0;Indianapolis, IN:21:39.8:86.9;Des Moines, IA:11:41.8:93.6;Wichita, KS:22:38.1:97.6;Louisville, KY:27:39.0:86.5;New Orleans, LA:45:30.8:90.2;Portland, ME:12:44.2:70.5;Baltimore, MD:25:39.7:77.3;Boston, MA:23:42.7:71.4;Detroit, MI:21:43.1:83.9;Minneapolis, MN:2:45.9:93.9;St. Louis, MO:24:39.3:90.5;Helena, MT:8:47.1:112.4;Omaha, NE:13:41.9:96.1;Concord, NH:11:43.5:71.9;Atlantic City, NJ:27:39.8:75.3;Albuquerque, NM:24:35.1:106.7;Albany, NY:14:42.6:73.7;New York, NY:27:40.8:74.6;Charlotte, NC:34:35.9:81.5;Raleigh, NC:31:36.4:78.9;Bismarck, ND:0:47.1:101.0;Cincinnati, OH:26:39.2:85.0;Cleveland, OH:21:42.3:82.5;Oklahoma City, OK:28:35.9:97.5;Portland, OR:33:45.6:123.2;Harrisburg, PA:24:40.9:77.8;Philadelphia, PA:24:40.9:75.5;Charleston, SC:38:33.3:80.8;Nashville, TN:31:36.7:87.6;Amarillo, TX:24:35.6:101.9;Galveston, TX:49:29.4:95.5;Houston, TX:44:30.1:95.9;Salt Lake City, UT:18:41.1:112.3;Burlington, VT:7:45.0:73.9;Norfolk, VA:32:37.0:76.6;Seattle, WA:33:48.1:122.5;Spokane, WA:19:48.1:117.9;Madison, WI:9:43.4:90.2;Milwaukee, WI:13:43.3:88.1;Cheyenne, WY:14:41.2:104.9";
var rows : Array = sourceData.split( ";" );
for each ( var row : String in rows )
{
var data : XML = new XML( "<data />" );
var i : int = 0;
var columns : Array = row.split( ":" );
for each ( var column : String in columns )
{
switch ( i )
{
case 0:
data.@location = column;
break;
case 1:
data.@janTemp = column;
break;
case 2:
data.@lat = column;
break;
case 3:
data.@lon = column;
break;
}
i ++;
}
output.appendChild( data );
}
outputText.text = output.toXMLString();
}
public function getTempColor( temp : Number ) : int
{
var percentage : Number = (temp / maxTemp);
return ( ( maxColorObj.r - percentage * delta.r ) << 16 )
+ ((maxColorObj.g - percentage * delta.g ) << 8 )
+ ( maxColorObj.b - percentage * delta.b );
}
public function getTempColor( temp : Number )for each ( var data : XML in dataSet.data )
{
var latlng:LatLng = new LatLng( parseFloat( data.@lat ), -parseFloat( data.@lon ) );
var markerOptions : MarkerOptions = new MarkerOptions({
strokeStyle: new StrokeStyle({color: 0x000000}),
fillStyle: new FillStyle({color: getTempColor( parseFloat( data.@janTemp.toString() ) ), alpha: 0.8}),
radius: 12,
hasShadow: true
})
markerOptions.tooltip = data.@location.toString() + ": " + data.@janTemp.toString() + " F";
var marker : Marker = new Marker( latlng, markerOptions );
map.addOverlay( marker );
}
After thinking about it some more, I realized I could use the GPolyline to do what I want. I have the line going from point X to 0.0000001 latitude/longitude away, so it looks like a point (but is actually a line). The line color is specified by HTML hexadecimal, and you can add a click event to pull up data. Works perfectly! For even more heating effects, I have the weighting of the "line" change as well.
Thanks again anyways.
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