.progress-circle {
transition: stroke-dashoffset 1s ease-in-out, stroke 1s ease-in-out;
}
';
}
function generateLineGraph($dataPoints1, $dataPoints2, $height = 300, $xLabel = 'X Axis', $yLabel = 'Y Axis', $leftPadding = 80, $minYCustom = null, $maxYCustom = null)
{
// Ensure both datasets are not empty
if (empty($dataPoints1) || empty($dataPoints2)) {
return '
No data available for the graph.
';
}
// Combine both datasets to find the global min and max Y values for scaling
$yValues1 = array_column($dataPoints1, 1);
$yValues2 = array_column($dataPoints2, 1);
$yValues = array_merge($yValues1, $yValues2);
// Ensure y-values are numeric
foreach ($yValues as $value) {
if (!is_numeric($value)) {
return '
Error: Y values must be numeric.
';
}
}
// Automatically calculate min and max Y values if not provided
$minY = $minYCustom !== null ? $minYCustom : min($yValues);
$maxY = $maxYCustom !== null ? $maxYCustom : max($yValues);
// Avoid division by zero for scaling
if ($maxY === $minY) {
$minY = $minY - 1;
$maxY = $maxY + 1;
}
// Padding for the graph (dynamic based on the $leftPadding parameter)
$padding = 40; // Top and bottom padding
$rightPadding = 40; // Right padding
$width = 2000; // Default width for calculations
// Scaling factor for the y-axis to fit the graph within the height
$yScale = ($height - 2 * $padding) / ($maxY - $minY);
// Generate the path data for the first dataset
$pathData1 = '';
foreach ($dataPoints1 as $index => $point) {
// Convert x value (timestamp) to a numeric index for plotting
$x = $leftPadding + ($index / (count($dataPoints1) - 1)) * ($width - $leftPadding - $rightPadding);
// Ensure y is numeric and scaled properly
$y = $height - $padding - ((float)$point[1] - $minY) * $yScale;
$pathData1 .= ($index === 0) ? "M$x,$y" : " L$x,$y";
}
// Generate the path data for the second dataset
$pathData2 = '';
foreach ($dataPoints2 as $index => $point) {
$x = $leftPadding + ($index / (count($dataPoints2) - 1)) * ($width - $leftPadding - $rightPadding);
$y = $height - $padding - ((float)$point[1] - $minY) * $yScale;
$pathData2 .= ($index === 0) ? "M$x,$y" : " L$x,$y";
}
// Generate grid lines
$gridLines = '';
$numYGridLines = 3;
// X-axis grid lines and labels
$numXGridLines = min(4, count($dataPoints1) - 1);
// Y-axis grid lines
for ($i = 0; $i <= $numYGridLines; $i++) {
$y = $height - $padding - ($i / $numYGridLines) * ($height - 2 * $padding);
$gridLines .= '';
}
// X-axis grid lines and labels
$xLabelsOutput = '';
for ($i = 0; $i <= $numXGridLines; $i++) {
$x = $leftPadding + ($i / $numXGridLines) * ($width - $leftPadding - $rightPadding);
$gridLines .= '';
$xLabelsOutput .= '' . htmlspecialchars((string)$dataPoints1[$i * (count($dataPoints1) - 1) / $numXGridLines][0]) . '';
}
// Y-axis labels
$yLabelsOutput = '';
foreach (range(0, $numYGridLines) as $i) {
$yValue = $minY + ($i / $numYGridLines) * ($maxY - $minY);
$yPos = $height - $padding - (($yValue - $minY) * $yScale);
$yLabelsOutput .= '' . htmlspecialchars(round($yValue, 2)) . '';
}
// Generate the SVG code
return '
';
}
function getCurrentWeather($apiKey, $city = 'Mbombela', $countryCode = 'ZA')
{
// Build the API URL
$url = "https://api.openweathermap.org/data/2.5/weather?q={$city},{$countryCode}&appid={$apiKey}&units=metric";
// Initialize cURL session
$curl = curl_init();
// Set cURL options
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 10);
// Execute cURL request and fetch the response
$response = curl_exec($curl);
// Close the cURL session
curl_close($curl);
// Check if the response is valid JSON
if ($response === false) {
return "Error fetching weather data.";
}
$weatherData = json_decode($response, true);
// Check if the API call was successful
if (isset($weatherData['cod']) && $weatherData['cod'] == 200) {
// Extract required data
$temperature = $weatherData['main']['temp'];
$humidity = $weatherData['main']['humidity'];
$weatherCondition = $weatherData['weather'][0]['description'];
$uvIndex = self::getUVIndex($weatherData['coord']['lat'], $weatherData['coord']['lon'], $apiKey);
// Check for rain data (in mm)
$rainAmount = isset($weatherData['rain']['1h']) ? $weatherData['rain']['1h'] : 0;
$chanceOfRain = $rainAmount > 0 ? 'Yes' : 'No';
return [
'temperature' => $temperature,
'feels_like' => $weatherData['main']['feels_like'],
'pressure' => $weatherData['main']['pressure'],
'humidity' => $humidity,
'uvIndex' => $uvIndex,
'weatherCondition' => $weatherCondition,
'chanceOfRain' => $chanceOfRain,
'rainAmount' => $rainAmount . ' mm' // Rainfall in mm
];
} else {
return "Error: " . $weatherData['message'];
}
}
function getUVIndex($lat, $lon, $apiKey)
{
// Build the API URL for UV index
$url = "https://api.openweathermap.org/data/2.5/uvi?lat={$lat}&lon={$lon}&appid={$apiKey}";
// Initialize cURL session
$curl = curl_init();
// Set cURL options
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 10);
// Execute cURL request and fetch the response
$response = curl_exec($curl);
// Close the cURL session
curl_close($curl);
// Check if the response is valid JSON
if ($response === false) {
return "Error fetching UV index.";
}
$uvData = json_decode($response, true);
// Check if the API call was successful
if (isset($uvData['value'])) {
return $uvData['value'];
} else {
return "Error fetching UV index.";
}
}
}