Vacation seating
Online version: http://ernie.art.yale.edu/~emilylarned/weathersliced.html
Sample images:
Source code:
<?php
//----PHP should tell the browser it is getting a png image, not html as is the
default
header("Content-type: image/png");
//--constants
$canvasWidth = 87;
$canvasHeight = 87;
// Based on the request to this script, figure out what location to get the
weather for
//$location = $_REQUEST["location"];
$location = "06511";
//-------------------------------
// GET THE WEATHER INTO VARIABLES
// First just load the file as straight data. We need to alter it before we can
begin.
$xmlContents =
file_get_contents("http://xml.weather.yahoo.com/forecastrss?p=$location");
$xmlContents = str_replace("yweather:", "", $xmlContents);
$xmlContents = str_replace("geo:", "", $xmlContents);
// Now load the string into SimpleXML
$xml = simplexml_load_string($xmlContents);
// ----- FOR CONVENIENCE, LOAD DATA WE CARE ABOUT INTO VARIABLES
// <channel> node contains some of the info
$channel = $xml->channel;
// Location name: only the attributes are meaningful
$location = $channel->location;
$city = $location["city"]; // e.g. "New Haven"
$region = $location["region"]; // e.g. "CT"
$country = $location["country"]; // e.g. "US"
// Units info: only the attributes are meaningful
$units = $channel->units;
$tempUnits = $units["temperature"]; // e.g. "F"
$distanceUnits = $units["distance"]; // e.g. "mi"
$pressureUnits = $units["pressure"]; // e.g. "in"
$speedUnits = $units["speed"]; // e.g. "mph"
// Wind data: only the attributes are meaningful
$wind = $channel->wind;
$windChill = $wind["chill"]; // e.g. "57"
$windDir = $wind["direction"]; // e.g. "350"
$windSpeed = $wind["speed"]; // e.g. "7"
// Atmosphere data: only the attributes are meaningful
$atmosphere = $channel->atmosphere;
$humidity = $atmosphere["humidity"]; // e.g. "93";
$visibility = $atmosphere["visibility"]; // e.g. "1609";
$pressure = $atmosphere["pressure"]; // e.g. "30.12";
$rising = $atmosphere["rising"]; // e.g. "0";
// Astronomy data: only the attributes are meaningful
$astronomy = $channel->astronomy;
$sunrise = $astronomy["sunrise"]; // e.g. "7:02 am";
$sunset = $astronomy["sunset"]; // e.g. "4:51 pm";
// <item> node is within the <channel> node, contains additional info
$item = $channel->item;
$lat = $item->lat; // Latitude, e.g. "37.39"
$long = $item->long; // Longitude, e.g. "122.03"
// Condition data: only the attributes are meaningful
$condition = $item->condition;
$conditionText = $condition["text"]; // e.g. "Mostly Cloudy" (corresponds to
code below)
$conditionCode = $condition["code"]; // e.g. "26" (47 possibilities)
$temp = $condition["temp"]; // e.g. 57
$date = $condition["date"]; // e.g. Tue, 29 Nov 2005 3:56 pm PST
// THE WEATHER IS NOW IN VARIABLES
//---------------------------------
//$conditionCode=46;
//---create a new canvas
$canvas = imagecreatetruecolor($canvasWidth, $canvasHeight);
//-- define a few colors with rgb values
$white = imagecolorallocate($canvas, 255, 255, 255);
$black = imagecolorallocate($canvas, 0, 0, 0);
$blue = imagecolorallocate($canvas, 0, 110, 185);
$lightblue = imagecolorallocate($canvas, 0, 172, 233);
$darkblue = imagecolorallocate($canvas, 0, 73, 160);
$red = imagecolorallocate($canvas, 255, 0, 0);
$orange = imagecolorallocate($canvas, 242, 76, 24);
$gray = imagecolorallocate($canvas, 127, 127, 127);
$green = imagecolorallocate($canvas, 41, 153, 71);
$yellow = imagecolorallocate($canvas, 255, 204, 1);
//--fill the background
//--define white as a transparent color
imagecolortransparent($canvas, $white);
imagefill($canvas, 0, 0, $white);
//--sprinke few pixles if it is raining lighty
if ($conditionCode=="11" || $conditionCode=="12" || $conditionCode=="40" ||
$conditionCode=="45"
|| $conditionCode=="9") {
for ($count = 1; $count <= 150; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//--sprinke more pixles if it is raining even harder
if ($conditionCode=="39" || $conditionCode=="38" || $conditionCode=="4" ||
$conditionCode=="47"
|| $conditionCode=="37") {
for ($count = 1; $count <= 1000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//--sprinke more even darker pixles if it is raining severely
if ($conditionCode=="17" || $conditionCode=="18" || $conditionCode=="3") {
for ($count = 1; $count <= 3000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//+ yellow shape for thunder/lightening
// set up array of points for polygon
if ($conditionCode=="3" || $conditionCode=="4" || $conditionCode=="37" ||
$conditionCode=="38"
|| $conditionCode=="39" || $conditionCode=="45" || $conditionCode=="47"){
$values = array(
5, 60, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
30, 40, // Point 3 (x, y)
10, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
30, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $yellow);
}
//--sprinke green pixles if it is a tropical storm
if ($conditionCode=="1") {
for ($count = 1; $count <= 2000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $green);
}
}
//blue and light blue pixles if snow-rain mix
if ($conditionCode=="5" || $conditionCode=="6" ||
$conditionCode=="7" || $conditionCode=="8" || $conditionCode=="10" ||
$conditionCode=="35"){
for ($count = 1; $count <= 20000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
if ($conditionCode=="5" || $conditionCode=="6" ||
$conditionCode=="7" || $conditionCode=="8" || $conditionCode=="10" ||
$conditionCode=="35"){
for ($count = 1; $count <= 20000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $lightblue);
}
}
//lightblue if snowing
if ($conditionCode=="13" || $conditionCode=="14" ||
$conditionCode=="15" || $conditionCode=="42" || $conditionCode=="46"){
for ($count = 1; $count <= 25000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $lightblue);
}
}
//more white if severe snow
if ($conditionCode=="16" || $conditionCode=="41" ||
$conditionCode=="43"){
for ($count = 1; $count <= 9000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $lightblue);
}
}
//dark blue if cold
if ($conditionCode=="25"){
for ($count = 1; $count <= 65000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//black if night
if ($conditionCode =="27" || $conditionCode=="29" || $conditionCode=="31" ||
$conditionCode=="33"){
for ($count = 1; $count <= 65000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $black);
}
}
//red pixels if dusty
if ($conditionCode=="19") {
for ($count = 1; $count <= 800; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $red);
}
}
//black pixels if smokey
if ($conditionCode=="22") {
for ($count = 1; $count <= 800; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $black);
}
}
//grey shape if hurriance
// set up array of points for polygon
if ($conditionCode=="2"){
$values = array(
10, 20, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
40, 80, // Point 3 (x, y)
60, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
80, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $gray);
}
//black shapee if tornado
// set up array of points for polygon
if ($conditionCode=="0"){
$values = array(
10, 20, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
40, 80, // Point 3 (x, y)
60, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
80, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $black);
}
// blue shapee if windy
// set up array of points for polygon
if ($conditionCode=="23" || $conditionCode=="24" || $conditionCode=="15" ||
$conditionCode=="1"){
$values = array(
5, 60, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
30, 40, // Point 3 (x, y)
10, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
80, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $blue);
}
//--draw a red circle for the sun if sunny / fair / partly daytime
if ($conditionCode=="32" || $conditionCode=="34"|| $conditionCode=="30"){
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 50;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $red);
}
//--draw a lightblue circle for the moon if clear / partly at night
if ($conditionCode=="31" || $conditionCode=="33" || $conditionCode=="29"){
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 40;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $lightblue);
}
//--draw a huge red circle if hot
if ($conditionCode=="36") {
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 80;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $red);
}
//--draw a gray circle if it is cloudy
if ($conditionCode=="26" || $conditionCode=="27" || $conditionCode=="28"
|| $conditionCode=="29" || $conditionCode=="30" || $conditionCode=="44"){
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 70;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $gray);
}
//--duisplay temperature as a truetype font
$x = rand(15, $canvasWidth / 2);
$y = rand(50, $canvasHeight);
imagettftext($canvas, 18, 35, $x, $y, $orange, "5d-whitney.ttf", "$temp");
//output the image to the browser as a png
imagepng($canvas);
?>
//----PHP should tell the browser it is getting a png image, not html as is the
default
header("Content-type: image/png");
//--constants
$canvasWidth = 87;
$canvasHeight = 87;
// Based on the request to this script, figure out what location to get the
weather for
//$location = $_REQUEST["location"];
$location = "06511";
//-------------------------------
// GET THE WEATHER INTO VARIABLES
// First just load the file as straight data. We need to alter it before we can
begin.
$xmlContents =
file_get_contents("http://xml.weather.yahoo.com/forecastrss?p=$location");
$xmlContents = str_replace("yweather:", "", $xmlContents);
$xmlContents = str_replace("geo:", "", $xmlContents);
// Now load the string into SimpleXML
$xml = simplexml_load_string($xmlContents);
// ----- FOR CONVENIENCE, LOAD DATA WE CARE ABOUT INTO VARIABLES
// <channel> node contains some of the info
$channel = $xml->channel;
// Location name: only the attributes are meaningful
$location = $channel->location;
$city = $location["city"]; // e.g. "New Haven"
$region = $location["region"]; // e.g. "CT"
$country = $location["country"]; // e.g. "US"
// Units info: only the attributes are meaningful
$units = $channel->units;
$tempUnits = $units["temperature"]; // e.g. "F"
$distanceUnits = $units["distance"]; // e.g. "mi"
$pressureUnits = $units["pressure"]; // e.g. "in"
$speedUnits = $units["speed"]; // e.g. "mph"
// Wind data: only the attributes are meaningful
$wind = $channel->wind;
$windChill = $wind["chill"]; // e.g. "57"
$windDir = $wind["direction"]; // e.g. "350"
$windSpeed = $wind["speed"]; // e.g. "7"
// Atmosphere data: only the attributes are meaningful
$atmosphere = $channel->atmosphere;
$humidity = $atmosphere["humidity"]; // e.g. "93";
$visibility = $atmosphere["visibility"]; // e.g. "1609";
$pressure = $atmosphere["pressure"]; // e.g. "30.12";
$rising = $atmosphere["rising"]; // e.g. "0";
// Astronomy data: only the attributes are meaningful
$astronomy = $channel->astronomy;
$sunrise = $astronomy["sunrise"]; // e.g. "7:02 am";
$sunset = $astronomy["sunset"]; // e.g. "4:51 pm";
// <item> node is within the <channel> node, contains additional info
$item = $channel->item;
$lat = $item->lat; // Latitude, e.g. "37.39"
$long = $item->long; // Longitude, e.g. "122.03"
// Condition data: only the attributes are meaningful
$condition = $item->condition;
$conditionText = $condition["text"]; // e.g. "Mostly Cloudy" (corresponds to
code below)
$conditionCode = $condition["code"]; // e.g. "26" (47 possibilities)
$temp = $condition["temp"]; // e.g. 57
$date = $condition["date"]; // e.g. Tue, 29 Nov 2005 3:56 pm PST
// THE WEATHER IS NOW IN VARIABLES
//---------------------------------
//$conditionCode=46;
//---create a new canvas
$canvas = imagecreatetruecolor($canvasWidth, $canvasHeight);
//-- define a few colors with rgb values
$white = imagecolorallocate($canvas, 255, 255, 255);
$black = imagecolorallocate($canvas, 0, 0, 0);
$blue = imagecolorallocate($canvas, 0, 110, 185);
$lightblue = imagecolorallocate($canvas, 0, 172, 233);
$darkblue = imagecolorallocate($canvas, 0, 73, 160);
$red = imagecolorallocate($canvas, 255, 0, 0);
$orange = imagecolorallocate($canvas, 242, 76, 24);
$gray = imagecolorallocate($canvas, 127, 127, 127);
$green = imagecolorallocate($canvas, 41, 153, 71);
$yellow = imagecolorallocate($canvas, 255, 204, 1);
//--fill the background
//--define white as a transparent color
imagecolortransparent($canvas, $white);
imagefill($canvas, 0, 0, $white);
//--sprinke few pixles if it is raining lighty
if ($conditionCode=="11" || $conditionCode=="12" || $conditionCode=="40" ||
$conditionCode=="45"
|| $conditionCode=="9") {
for ($count = 1; $count <= 150; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//--sprinke more pixles if it is raining even harder
if ($conditionCode=="39" || $conditionCode=="38" || $conditionCode=="4" ||
$conditionCode=="47"
|| $conditionCode=="37") {
for ($count = 1; $count <= 1000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//--sprinke more even darker pixles if it is raining severely
if ($conditionCode=="17" || $conditionCode=="18" || $conditionCode=="3") {
for ($count = 1; $count <= 3000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//+ yellow shape for thunder/lightening
// set up array of points for polygon
if ($conditionCode=="3" || $conditionCode=="4" || $conditionCode=="37" ||
$conditionCode=="38"
|| $conditionCode=="39" || $conditionCode=="45" || $conditionCode=="47"){
$values = array(
5, 60, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
30, 40, // Point 3 (x, y)
10, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
30, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $yellow);
}
//--sprinke green pixles if it is a tropical storm
if ($conditionCode=="1") {
for ($count = 1; $count <= 2000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $green);
}
}
//blue and light blue pixles if snow-rain mix
if ($conditionCode=="5" || $conditionCode=="6" ||
$conditionCode=="7" || $conditionCode=="8" || $conditionCode=="10" ||
$conditionCode=="35"){
for ($count = 1; $count <= 20000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
if ($conditionCode=="5" || $conditionCode=="6" ||
$conditionCode=="7" || $conditionCode=="8" || $conditionCode=="10" ||
$conditionCode=="35"){
for ($count = 1; $count <= 20000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $lightblue);
}
}
//lightblue if snowing
if ($conditionCode=="13" || $conditionCode=="14" ||
$conditionCode=="15" || $conditionCode=="42" || $conditionCode=="46"){
for ($count = 1; $count <= 25000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $lightblue);
}
}
//more white if severe snow
if ($conditionCode=="16" || $conditionCode=="41" ||
$conditionCode=="43"){
for ($count = 1; $count <= 9000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $lightblue);
}
}
//dark blue if cold
if ($conditionCode=="25"){
for ($count = 1; $count <= 65000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $blue);
}
}
//black if night
if ($conditionCode =="27" || $conditionCode=="29" || $conditionCode=="31" ||
$conditionCode=="33"){
for ($count = 1; $count <= 65000; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $black);
}
}
//red pixels if dusty
if ($conditionCode=="19") {
for ($count = 1; $count <= 800; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $red);
}
}
//black pixels if smokey
if ($conditionCode=="22") {
for ($count = 1; $count <= 800; $count++) {
//pick a random x y coordinate
$x= rand (0, $canvasWidth - 1);
$y= rand (0, $canvasHeight - 1);
//draw the pixel
imagesetpixel($canvas, $x, $y, $black);
}
}
//grey shape if hurriance
// set up array of points for polygon
if ($conditionCode=="2"){
$values = array(
10, 20, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
40, 80, // Point 3 (x, y)
60, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
80, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $gray);
}
//black shapee if tornado
// set up array of points for polygon
if ($conditionCode=="0"){
$values = array(
10, 20, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
40, 80, // Point 3 (x, y)
60, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
80, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $black);
}
// blue shapee if windy
// set up array of points for polygon
if ($conditionCode=="23" || $conditionCode=="24" || $conditionCode=="15" ||
$conditionCode=="1"){
$values = array(
5, 60, // Point 1 (x, y)
10, 60, // Point 2 (x, y)
30, 40, // Point 3 (x, y)
10, 10, // Point 4 (x, y)
20, 10, // Point 5 (x, y)
80, 40 // Point 6 (x, y)
);
imagefilledpolygon($canvas, $values, 6, $blue);
}
//--draw a red circle for the sun if sunny / fair / partly daytime
if ($conditionCode=="32" || $conditionCode=="34"|| $conditionCode=="30"){
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 50;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $red);
}
//--draw a lightblue circle for the moon if clear / partly at night
if ($conditionCode=="31" || $conditionCode=="33" || $conditionCode=="29"){
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 40;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $lightblue);
}
//--draw a huge red circle if hot
if ($conditionCode=="36") {
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 80;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $red);
}
//--draw a gray circle if it is cloudy
if ($conditionCode=="26" || $conditionCode=="27" || $conditionCode=="28"
|| $conditionCode=="29" || $conditionCode=="30" || $conditionCode=="44"){
$x = rand(0, $canvasWidth - 20);
$y = rand(0, $canvasHeight - 20);
$radius = 70;
imagefilledellipse($canvas, $x, $y, $radius, $radius, $gray);
}
//--duisplay temperature as a truetype font
$x = rand(15, $canvasWidth / 2);
$y = rand(50, $canvasHeight);
imagettftext($canvas, 18, 35, $x, $y, $orange, "5d-whitney.ttf", "$temp");
//output the image to the browser as a png
imagepng($canvas);
?>