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Copy pathsort -Testing.html
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sort -Testing.html
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<!DOCTYPE html>
<html>
<head>
<title>Animation of Sorting Algorithms</title>
<script type = "text/javascript">
var TargetTick;
var Tick;
var Timer1;
var A; // The array to be sorted
var arr0 = "<span id='arr0' >curr↓</span>";
var arr1 = "<span id='arr1' >max↓</span>";
var weights=[20,57,43,30,67,10];
var values=[100,43,69,98,110,60];
A=new Array(weights.length);
//A = [79,56,19,44,86,22,41,35,39,99,16,53,29,26,11,49,65,33,51,83];
function createfractions()
{
for (var i = 0; i < weights.length; i++)
{
A[i]=(values[i]/weights[i]).toFixed(2);;
//alert(A[i]);
}
}
function ExecuteSort()
{
//Clearing the secondDiv "SortedElem" since we are starting from beginning
var secondDivContent = document.getElementById('SortedElem');
secondDivContent.innerHTML ="";
var Speed = parseInt(speedSelectList.options[speedSelectList.selectedIndex].value);
var Alg = parseInt(algorithmSelectList.options[algorithmSelectList.selectedIndex].value);
TargetTick=1;
createfractions();
// Start animation
if (Timer1) clearInterval(Timer1);
if (Alg == 0)
Timer1 = setInterval(AnimateSelectionSort,Speed);
else
Timer1 = setInterval(AnimateInsertionSort,Speed);
}
function copyDiv()
{
var firstDivContent = document.getElementById('OutDiv');
var secondDivContent = document.getElementById('SortedElem');
secondDivContent.innerHTML = firstDivContent.innerHTML;
}
function SelectionSort(A)
{
for (var i = 0; i < A.length-1; i++)
{ var max_pos=i ;
var max = A[i];
for(var j = i; j < A.length; j++)
{ if (A[j] < max )
{ max_pos= j; max =A[j] }
if (UpdateTick()) { PrintArray(A,i,j,max_pos); return; }
}
// swap A[i] with A[max_pos]
var t = A[i]; A[i] = A[max_pos]; A[max_pos] = t;
}
// (i > A.length) last call to Printarray() to show array after final swap
PrintArray(A,i+1,-1,-1);
EndAnimate();
}
function InsertionSort(A)
{
for (var i = 1; i < A.length; i++)
{
var item = A[i];
var j = i-1;
// find place for item
// while( (j >= 0) && (item < A[j]))
// for animation, we moved the test for 2nd cond to inside of loop
while ((j >= 0))
{ if (UpdateTick())
{ PrintArray(A,j+1,i,i); return; }
if (item >= A[j]) break;
A[j+1] = A[j];
A[j] = item; // this is added for animation
j--;
}
A[j+1] = item;
}
PrintArray(A,i+1,-1,-1);
EndAnimate();
}
function PrintArray(A, start,target, maxpos)
{ // This function renders the array A as an HTML list
// alert(target);
var x = "";
for(var i= 0; i < A.length ; i++)
{ var st = "";
if (i < start) st = " class ='finished'";
var ext ="";
if (i==start)
{ ext = arr0; st = "style='background-color:white'"; }
if (i==target )
{ st = "style='background-color:white'"; }
if (i== maxpos)
{ ext += arr1; st = " style='background-color:white;border-color: red'"; }
// x += "<li " + st + ">" + A[i] + ext+ "</li>";
x += "<li " + st + ">" + weights[i]+".kg <br>"+"val."+values[i]+"<br>"+values[i]+"/"+weights[i]+"="+A[i] + ext+ "</li>";
}
OutDiv.innerHTML = "<ul>" + x + "</ul>";
}
function PrintGREEDY(A, start,target)
{ // This function renders the array A as an HTML list
// alert(target);
var x = "";
for(var i= 0; i < A.length ; i++)
{ var st = "";
if (i < start) st = " class ='finished'";
var ext ="";
if (i==start)
{ ext = arr0; st = "style='background-color:white'"; }
if (i==target )
{ st = "style='background-color:white'"; }
if (i== totweight)
{ ext += arr1; st = " style='background-color:white;border-color: red'"; }
// x += "<li " + st + ">" + A[i] + ext+ "</li>";
x += "<li " + st + ">" + weights[i]+".kg <br>"+"val."+values[i]+"<br>"+values[i]+"/"+weights[i]+"="+A[i] + ext+ "</li>";
}
var secondDivContent = document.getElementById('SortedElem');
secondDivContent.innerHTML = "<ul>" + x + "</ul>";
}
// The pattern for AnimateSomeProcedure() is:
// Set TragetTick =1 (in caller)
// Execute the procedure to be animated from start (Tick=0) till (Tick=TragetTick)
// Increment TargetTick
// Execute the procedure to be animated from start (Tick=0) till (Tick=TragetTick)
// Increment TargetTick
// Execute the procedure to be animated from start (Tick=0) till (Tick=TragetTick)
// Note: Tick is incremented in UpateTick()
function AnimateSelectionSort()
{ // This function is executed repeatedly via SetInterval()
// Note: TargetTick is incremented with every call to this function
Tick=0;
// SelectionSort(A);
SelectionSort_Rec(A,0) ;
TargetTick++;
// alert(TargetTick)
}
function AnimateKnapSack()
{ // This function is executed repeatedly via SetInterval()
// Note: TargetTick is incremented with every call to this function
Tick=0;
// SelectionSort(A);
KnapSack_Rec(A,0) ;
TargetTick++;
}
function AnimateInsertionSort()
{ // This function is executed repeatedly via SetInterval()
// Note: TargetTick is incremented with every call to this function
B = A.slice(); // Start from an original copy of A
Tick=0;
InsertionSort(B);
TargetTick++;
}
function EndAnimate()
{ clearInterval(Timer1);
copyDiv();
// PrintGREEDY(A,2);
}
function UpdateTick()
{ Tick++;
return (Tick == TargetTick);
}
function SelectionSort_Rec(A,i)
{
if (i >= A.length-1)
{ // (i > A.length) last call to Printarray() to show array after final swap
PrintArray(A,i+1,-1,-1);
EndAnimate();
return;
}
var max_pos=i ;
var max = A[i];
for(var j = i; j < A.length; j++)
{ if (A[j] > max )
{ max_pos= j; max =A[j]; }
if (UpdateTick()) { PrintArray(A,i,j,max_pos); return; }
}
// swap A[i] with A[max_pos]
var t = A[i]; A[i] = A[max_pos]; A[max_pos] = t;
SelectionSort_Rec(A,i+1); // Recursive call
}
function KnapSack_Rec(A,i)
{
if (i >= A.length-1)
{ // (i > A.length) last call to Printarray() to show array after final swap
PrintGREEDY(A,i+1,-1)
EndAnimate();
return;
}
var max_pos=i ;
var max = A[i];
for(var j = i; j < A.length; j++)
{ if (A[j] < max )
{ max_pos= j; max =A[j]; }
if (UpdateTick()) { PrintGREEDY(A,i,j); return; }
}
// swap A[i] with A[max_pos]
var t = A[i]; A[i] = A[max_pos]; A[max_pos] = t;
KnapSack_Rec(A,i+1); // Recursive call
}
</script>
<style>
body { margin-left:10px; }
ul { list-style-type: none;padding:12px 0px; }
ul li {position:relative; border:1px solid gray; display:inline-block; width:120px; height:120px;
text-align:center; line-height:36px;margin-left:15px;vertical-align: middle;border-radius: 50%;background-color:lightgray}
.target { color:red; background:white}
.finished { background:lightyellow }
.placed { background:blue }
#arr0 , #arr1 { position:absolute; top:-2em; left:14px; padding:0; margin:0; font-weight:bold; }
#arr0 { color: blue; }
#arr1 { color: red; left:16px;}
label, select, input[type=button] { font-size:1.1em; margin-left:8px; }
input[type=button] { margin-left:16px; padding:1px 12px; }
select { font-size:1.1em; }
label { font-style: italic; }
#OutDiv { margin-top:40px; }
</style>
</head>
<body>
<h1>Animation of Selection Sort and Insertion Sort Algorithms</h1>
<label>Speed <select id="speedSelectList" >
<option value="2000" >slow</option>
<option value="600" >medium</option>
<option value="20" >fast</option>
</select>
</label>
<label>Algorithm <select id="algorithmSelectList" >
<option value="0" >Selection Sort</option>
<option value="1" >Insertion Sort</option>
</select>
</label>
<input type="button" value="Start" onclick="ExecuteSort()" />
<div id="OutDiv" >
</div>
<div id="SortedElem">
</div>
</body>
</html>