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dummythree.php
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<!DOCTYPE html>
<html>
<style>
.tooltip {
background: lightblue;
fill-opacity: 0.8;
font-size: 12px;
min-width: 40px;
min-height: 40px;
height: 120px;
width: 250px;
padding: 10px;
z-index: 1000;
position: absolute;
font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
border-radius: 5px;
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
.tooltip h1 {
opacity: 1;
color: black;
}
svg {
margin-left: 90px;
border: 1px solid black;
}
</style>
<head>
<script src="https://d3js.org/d3.v7.min.js"></script>
</head>
<body>
<form method="post" action="flow.php" style="display : inline-block;">
<label for="from">From:</label>
<select id="from" name="from">
<option value="">-- Select year --</option>
<option value="2019">2019</option>
<option value="2020">2020</option>
<option value="2021">2021</option>
</select>
<br>
<label for="to">To:</label>
<select id="to" name="to">
<option value="" disabled selected>-- Select year --</option>
</select>
<br>
<input type="submit" value="Submit">
</form>
<script>
var fromDropdown = document.getElementById("from");
var toDropdown = document.getElementById("to");
fromDropdown.addEventListener("change", function() {
toDropdown.innerHTML = '<option value="" disabled selected>-- Select year --</option>';
if (fromDropdown.value == "2019") {
toDropdown.innerHTML += '<option value="2020">2020</option><option value="2021">2021</option><option value="2022">2022</option>';
} else if (fromDropdown.value == "2020") {
toDropdown.innerHTML += '<option value="2021">2021</option><option value="2022">2022</option>';
} else if (fromDropdown.value == "2021") {
toDropdown.innerHTML += '<option value="2022">2022</option>';
}
});
</script>
<button onclick="updatedata()">Run Animation</button>
<div id="flowshower"></div>
</body>
</html>
<?php
// Connect to the database using PDO
$servername = "localhost";
$port_no = 3306;
$username = "Thanish";
$password = "Thanish@123";
$myDB = "josaa"; //Name of the database to access
try {
$conn = new PDO("mysql:host=$servername;port=$port_no;dbname=$myDB", $username, $password);
// set the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
//echo "Connected successfully";
// Retrieve form inputs
//$year=2022;
if (isset($_POST['from'])) {
$year1 = $_POST['from'];
} else {
$year1 = 2021;
}
if (isset($_POST['to'])) {
$year2 = $_POST['to'];
} else {
$year2 = 2022;
}
// echo("<pre>\n");
// print_r($year2);
// echo("</pre>");
// $year=$year2;
// echo("<pre>\n");
// print_r($year);
// echo("</pre>");
// Prepare and execute the SQL query
$stmt = $conn->prepare("SELECT s1.`Institute`, s1.`Academic Program Name`, s1.`Opening Rank`, s1.`Closing Rank`, s1.`Intake`
FROM `seatmatrix` s1
INNER JOIN `seatmatrix` s2 ON s1.`Institute` = s2.`Institute`
AND s1.`Academic Program Name` = s2.`Academic Program Name`
AND s1.`Seat Type` = s2.`Seat Type`
AND s1.`Gender` = s2.`Gender`
AND s1.`Quota` = s2.`Quota`
WHERE s1.`Gender` = 'Gender-Neutral'
AND s1.`Seat Type` = 'OPEN'
AND s1.`Quota` = 'AI'
AND s1.`Year` = :yr1
AND s1.`Closing Rank` <= 1000
AND s2.`Year` = :yr2");
$stmt->bindParam(':yr1', $year1);
$stmt->bindParam(':yr2', $year2);
$stmt->execute();
$results1 = $stmt->fetchAll();
// Performing Inner Join on the "TO" Year
$stmt = $conn->prepare("SELECT s2.`Institute`, s2.`Academic Program Name`, s2.`Opening Rank`, s2.`Closing Rank`, s2.`Intake`
FROM `seatmatrix` s1
INNER JOIN `seatmatrix` s2 ON s1.`Institute` = s2.`Institute`
AND s1.`Academic Program Name` = s2.`Academic Program Name`
AND s1.`Seat Type` = s2.`Seat Type`
AND s1.`Gender` = s2.`Gender`
AND s1.`Quota` = s2.`Quota`
WHERE s2.`Gender` = 'Gender-Neutral'
AND s2.`Seat Type` = 'OPEN'
AND s2.`Quota` = 'AI'
AND s2.`Year` = :yr2
AND s2.`Closing Rank` <= 1000
AND s1.`Year` = :yr1");
$stmt->bindParam(':yr1', $year1);
$stmt->bindParam(':yr2', $year2);
$stmt->execute();
$results2 = $stmt->fetchAll();
//Performing Left Outer Join to get any new branches if introduced
$stmt = $conn->prepare("SELECT s2.`Institute`, s2.`Academic Program Name`, s2.`Opening Rank`, s2.`Closing Rank`, s2.`Intake`
FROM `seatmatrix` s2
LEFT OUTER JOIN `seatmatrix` s1 ON s1.`Institute` = s2.`Institute`
AND s1.`Academic Program Name` = s2.`Academic Program Name`
AND s1.`Seat Type` = s2.`Seat Type`
AND s1.`Gender` = s2.`Gender`
AND s1.`Quota` = s2.`Quota`
AND s1.`Year` = :yr1
WHERE s2.`Gender` = 'Gender-Neutral'
AND s2.`Seat Type` = 'OPEN'
AND s2.`Quota` = 'AI'
AND s2.`Year` = :yr2
AND s2.`Closing Rank` <= 1000
AND s1.`Institute` IS NULL;
");
$stmt->bindParam(':yr1', $year1);
$stmt->bindParam(':yr2', $year2);
$stmt->execute();
$results_extra = $stmt->fetchAll();
} catch (PDOException $e) {
echo "Connection failed: " . $e->getMessage();
}
?>
<script>
function getNumber(x) {
return 1 + Math.floor(Math.random() * x);
}
function getColor() {
var letters = '0123456789ABCDEF';
var color = '#';
// Generate a random dark color
for (var i = 0; i < 6; i++) {
var index = Math.floor(Math.random() * 16);
color += letters[index];
}
return color;
}
function hexToRgba(hex, alpha) {
// Remove '#' symbol if present
hex = hex.replace('#', '');
// Convert hex to RGB
const r = parseInt(hex.substring(0, 2), 16);
const g = parseInt(hex.substring(2, 4), 16);
const b = parseInt(hex.substring(4, 6), 16);
// Validate and adjust alpha value
alpha = Math.max(0, Math.min(1, alpha));
// Return RGBA value as a string
return `rgba(${r}, ${g}, ${b}, ${alpha})`;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//!SECTION : primary initialisations
const margin = {
top: 20,
right: 90,
bottom: 30,
left: 90
};
const width = 1400 - margin.left - margin.right;
const height = 700 - margin.top - margin.bottom;
const svg = d3.select("#flowshower").append('svg')
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", `translate(${margin.left + 90}, ${margin.top})`)
.style('background-color', 'white');
const xScale = d3.scaleLinear()
.domain([0, 1000])
.range([0, width]);
const yScale = d3.scaleLinear()
.domain([0, 1000])
.range([height - 100, 0]);
const div = d3.select('body').append('h1').attr('class', 'tooltip tooltip-text').style('opacity', 0);
const line = d3.select('svg').append('line').attr('x1', 140).attr('y1', 140).attr('x2', 141).attr('y2', 141).style('opacity', 0);
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
const res1 = <?php echo json_encode($results1); ?>;
const res2 = <?php echo json_encode($results2); ?>;
const glob1 = Array(); // 2021 data
for (var i = 0; i < res1.length; i++) {
k = {}
k['OR'] = res1[i][2]
k['CR'] = res1[i][3]
k['radius'] = res1[i][4]
k['cx'] = xScale((parseInt(res1[i][2]) + parseInt(res1[i][3])) / 2) + margin.left;
k['cy'] = yScale(getNumber(600 - parseInt(res1[i][4])));
k['institute'] = res1[i][0]
k['program'] = res1[i][1]
k['color'] = getColor();
glob1.push(k);
}
var glob2 = Array(); // 2020 data
for (var i = 0; i < res1.length; i++) {
k = {}
k['OR'] = res2[i][2]
k['CR'] = res2[i][3]
k['cx'] = xScale((parseInt(res2[i][2]) + parseInt(res2[i][3])) / 2) + margin.left;
k['cy'] = glob1[i].cy;
k['radius'] = res2[i][4]
k['institute'] = res2[i][0]
k['program'] = res2[i][1]
k['color'] = glob1[i].color;
glob2.push(k);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
d3.select('svg').selectAll("circle").data(glob1).join("circle")
.attr("cy", (d, i) => {
return d.cy;
})
.attr("r", (d, i) => {
return (parseInt(d.radius));
})
.attr("fill", (d, i) => {
return d.color;
})
.attr("opacity", 0.5)
.attr("cx", (d, i) => {
return d.cx;
})
.on('mouseover', function(d, i) {
console.log(d);
var name = i.institute;
var program = i.program;
var seats = i.radius;
var or = i.OR;
var cr = i.CR;
var color = i.color;
var center = (parseInt(or) + parseInt(cr)) / 2;
var x = d3.select(this).attr("cx");
d3.select(this).attr('opacity', 0.8);
div.transition()
.duration(50)
.style("opacity", 1).style('background-color', hexToRgba(color, 0.5));
div.html(name + "<br>" + program + '<br>Seat Number : ' + seats + '<br>Opening Rank : ' + or + '<br>Closing Rank : ' + cr + '<br>Center : ' + center)
.style("left", x + "px")
.style('top', '50px');
line.attr('cx', center).line('cy', 9);
})
.on('mouseleave', function(d, i) {
div.transition()
.duration('50')
.style("opacity", 0);
d3.select(this).attr('opacity', 0.5);
})
.on('click', function(d, i) {
d3.select(this).attr('stroke', 'black').attr('stroke-width', 1);
})
.on('dblclick', function(d, i) {
d3.select(this).attr('stroke-width', 0);
});
const xAxis = d3.axisBottom(xScale);
svg.append("g")
.attr("transform", `translate(-90, ${height})`)
.call(xAxis);
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function update(glob) {
const xScale = d3.scaleLinear()
.domain([0, 1000])
.range([0, width]);
const yScale = d3.scaleLinear()
.domain([0, d3.max(glob, d => parseInt(d.CR))])
.range([height - 100, 0]);
d3.select('svg').selectAll("circle").data(glob).join("circle")
.attr("cy", (d, i) => {
return d.cy;
})
.attr("opacity", 0.5)
.transition().delay(1000).duration(1000)
.attr("cx", (d, i) => {
return d.cx;
})
.attr("r", (d, i) => {
return (parseInt(d.radius));
})
.attr("fill", (d, i) => {
return d.color;
})
.on('mouseover', function(d, i) {
console.log(d);
var name = i.institute;
var program = i.program;
var seats = i.radius;
var or = i.OR;
var cr = i.CR;
var color = i.color;
var center = (parseInt(or) + parseInt(cr)) / 2;
var x = d3.select(this).attr("cx");
var y = d3.select(this).attr("cy")
div.transition()
.duration(50)
.style("opacity", 1).style('background-color', hexToRgba(color, 0.5));
div.html(name + "<br>" + program + '<br>Seat Number : ' + seats + '<br>Opening Rank : ' + or + '<br>Closing Rank : ' + cr + '<br>Center : ' + center)
.style("left", x + "px")
.style('top', '50px');
line.attr('x1', x).line('y1', y).attr('x2', 0).attr('y2', 0).style('stroke-width', 1).style('stroke', 'grey').style('opacity', 1);
})
.on('mouseleave', function(d, i) {
div.transition()
.duration('50')
.style("opacity", 0);
})
.on('click', function(d, i) {
d3.select(this).attr('opacity', 0.8).attr('stroke', 'black').attr('stroke-width', 1);
})
.on('dblclick', function(d, i) {
d3.select(this).attr('opacity', 0.5).attr('stroke-width', 0);
});
}
function updatedata() {
update(glob2);
}
</script>