adding the animation directory
This commit is contained in:
Jidong Xiao
20
animations/lists/insert/index.html
Normal file
20
animations/lists/insert/index.html
Normal file
@@ -0,0 +1,20 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>List: insert operation</title>
|
||||
<script src="../../konva.js"></script>
|
||||
</head>
|
||||
<body>
|
||||
|
||||
<h1>List: insert operation</h1>
|
||||
<p>This animation shows the insert operation in List. Click the "next step" button to run the animation. <b>Note:</b> in this animation, we will insert a node in between 5 and 8, and we assume the new node's value (i.e., x) is 4.</p>
|
||||
|
||||
<div id="container"></div>
|
||||
<script src="insert.js"></script>
|
||||
|
||||
<!-- we must include the javascript first, and then have this button definition which calls a function defined in the javascript -->
|
||||
<button onclick="list_insert_nextstep()" style="position: absolute; top: 110px; left: 10px;">next step</button>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
359
animations/lists/insert/insert.js
Normal file
359
animations/lists/insert/insert.js
Normal file
@@ -0,0 +1,359 @@
|
||||
// Author: Jidong Xiao
|
||||
// first we need to create a stage
|
||||
var stage = new Konva.Stage({
|
||||
container: 'container', // id of container <div>
|
||||
width: 2000,
|
||||
height: 1000
|
||||
});
|
||||
|
||||
// then create layer
|
||||
var layer = new Konva.Layer();
|
||||
|
||||
// add the layer to the stage
|
||||
stage.add(layer);
|
||||
|
||||
// the rectangle which contains the list.
|
||||
var rect3 = new Konva.Rect({
|
||||
x: 250,
|
||||
y: 360,
|
||||
id:"code_rec1",
|
||||
stroke: '#555',
|
||||
strokeWidth: 5,
|
||||
fill: '#ddd',
|
||||
width: 900,
|
||||
height: 300,
|
||||
shadowColor: 'black',
|
||||
shadowBlur: 10,
|
||||
shadowOffsetX: 10,
|
||||
shadowOffsetY: 10,
|
||||
shadowOpacity: 0.2,
|
||||
cornerRadius: 10,
|
||||
});
|
||||
layer.add(rect3);
|
||||
|
||||
// Create a function to draw list nodes
|
||||
function drawListNode(x, y, label, id){
|
||||
// the rectangle represents list nodes.
|
||||
let rect1 = new Konva.Rect({
|
||||
x: x,
|
||||
y: y,
|
||||
id:"list_node_rec_" + id,
|
||||
stroke: '#555',
|
||||
strokeWidth: 5,
|
||||
fill: '#ddd',
|
||||
width: 100,
|
||||
height: 50,
|
||||
});
|
||||
layer.add(rect1);
|
||||
|
||||
let rect2 = new Konva.Rect({
|
||||
x: x+100,
|
||||
y: y,
|
||||
id:"list_node_pointer_rec_" + id,
|
||||
stroke: '#555',
|
||||
strokeWidth: 5,
|
||||
fill: '#ddd',
|
||||
width: 20,
|
||||
height: 50,
|
||||
});
|
||||
layer.add(rect2);
|
||||
|
||||
// value
|
||||
var text = new Konva.Text({
|
||||
x: x + 45,
|
||||
y: y + 20,
|
||||
text: label,
|
||||
id: "list_node_text_" + id,
|
||||
fontSize: 20,
|
||||
fontFamily: 'Calibri',
|
||||
fill: 'black'
|
||||
});
|
||||
layer.add(text);
|
||||
|
||||
var arrow = new Konva.Arrow({
|
||||
points: [x+110, y+25, x+150, y+25],
|
||||
tension: 0.5,
|
||||
pointerLength: 10,
|
||||
pointerWidth: 10,
|
||||
id: "list_arrow_" + id,
|
||||
fill: 'green',
|
||||
stroke: 'green',
|
||||
strokeWidth: 5,
|
||||
});
|
||||
layer.add(arrow);
|
||||
}
|
||||
|
||||
drawListNode(300, 460, '7', 1);
|
||||
drawListNode(450, 460, '5', 2);
|
||||
drawListNode(600, 460, '8', 3);
|
||||
drawListNode(750, 460, '1', 4);
|
||||
drawListNode(900, 460, '9', 4);
|
||||
|
||||
var text_null = new Konva.Text({
|
||||
x: 1055,
|
||||
y: 475,
|
||||
text: "NULL",
|
||||
id: "node_text_null",
|
||||
fontSize: 20,
|
||||
fontFamily: 'Calibri',
|
||||
fill: 'black'
|
||||
});
|
||||
layer.add(text_null);
|
||||
|
||||
var text_itr = new Konva.Text({
|
||||
x: 235,
|
||||
y: 640,
|
||||
text: "itr",
|
||||
id: 'vec_itr_1',
|
||||
fontSize: 26,
|
||||
fontFamily: 'Calibri',
|
||||
fill: '#17202a'
|
||||
});
|
||||
|
||||
var itr_arrow = new Konva.Arrow({
|
||||
points: [250, 625, 250, 555],
|
||||
tension: 0.5,
|
||||
pointerLength: 10,
|
||||
pointerWidth: 10,
|
||||
id: 'itr_arrow_1',
|
||||
fill: 'green',
|
||||
stroke: 'green',
|
||||
strokeWidth: 5,
|
||||
});
|
||||
var pts = itr_arrow.points();
|
||||
|
||||
var text_itr2 = new Konva.Text({
|
||||
x: 235,
|
||||
y: 640,
|
||||
text: "itr2",
|
||||
id: 'vec_itr_2',
|
||||
fontSize: 26,
|
||||
fontFamily: 'Calibri',
|
||||
fill: '#17202a'
|
||||
});
|
||||
|
||||
var itr2_arrow = new Konva.Arrow({
|
||||
points: [250, 625, 250, 555],
|
||||
tension: 0.5,
|
||||
pointerLength: 10,
|
||||
pointerWidth: 10,
|
||||
id: 'itr_arrow_2',
|
||||
fill: 'yellow',
|
||||
stroke: 'yellow',
|
||||
strokeWidth: 5,
|
||||
});
|
||||
var pts2 = itr2_arrow.points();
|
||||
|
||||
var text_p = new Konva.Text({
|
||||
x: 495,
|
||||
y: 610,
|
||||
text: "p",
|
||||
id: 'itr_p',
|
||||
fontSize: 26,
|
||||
fontFamily: 'Calibri',
|
||||
fill: '#17202a'
|
||||
});
|
||||
|
||||
var arrow_p = new Konva.Arrow({
|
||||
points: [500, 605, 500, 535],
|
||||
tension: 0.5,
|
||||
pointerLength: 10,
|
||||
pointerWidth: 10,
|
||||
id: 'arrow_p',
|
||||
fill: 'yellow',
|
||||
stroke: 'yellow',
|
||||
strokeWidth: 5,
|
||||
});
|
||||
layer.add(text_p);
|
||||
layer.add(arrow_p);
|
||||
|
||||
// for pointer q
|
||||
var text_q = new Konva.Text({
|
||||
x: 645,
|
||||
y: 710,
|
||||
text: "q",
|
||||
id: 'itr_q',
|
||||
fontSize: 26,
|
||||
fontFamily: 'Calibri',
|
||||
fill: '#17202a'
|
||||
});
|
||||
|
||||
var arrow_q = new Konva.Arrow({
|
||||
points: [650, 705, 650, 635],
|
||||
tension: 0.5,
|
||||
pointerLength: 10,
|
||||
pointerWidth: 10,
|
||||
id: 'arrow_q',
|
||||
fill: 'yellow',
|
||||
stroke: 'yellow',
|
||||
strokeWidth: 5,
|
||||
});
|
||||
|
||||
// the code rectangle.
|
||||
var rect_list = new Konva.Rect({
|
||||
x: 250,
|
||||
y: 60,
|
||||
id:"code_rec_list",
|
||||
stroke: '#555',
|
||||
strokeWidth: 5,
|
||||
fill: '#ddd',
|
||||
width: 650,
|
||||
height: 250,
|
||||
shadowColor: 'black',
|
||||
shadowBlur: 10,
|
||||
shadowOffsetX: 10,
|
||||
shadowOffsetY: 10,
|
||||
shadowOpacity: 0.2,
|
||||
cornerRadius: 10,
|
||||
});
|
||||
layer.add(rect_list);
|
||||
|
||||
function makeCode(x,y,str,id) {
|
||||
return new Konva.Text({
|
||||
x: x,
|
||||
y: y,
|
||||
text: str,
|
||||
id: 'line'+id,
|
||||
fontSize: 18,
|
||||
fontFamily: 'Calibri',
|
||||
fill: '#000000',
|
||||
width: 750,
|
||||
padding: 20,
|
||||
});
|
||||
}
|
||||
|
||||
var code_list=[
|
||||
"0. Node<T> * q = new Node<T>; \t\t\t \t\t\t // create a new node",
|
||||
"1. q->value = x; \t\t\t \t\t\t \t\t\t \t\t\t // store x in this node",
|
||||
"2. q->next = p->next; \t\t\t \t\t\t // make its successor be the current successor of p",
|
||||
"3. p->next = q; \t\t\t \t\t\t \t\t\t \t\t\t // make p's successor be this new node",
|
||||
];
|
||||
|
||||
function makeBold_list(id){
|
||||
for(let i=1; i<=code_list.length; i++){
|
||||
if(i!=id){
|
||||
// regarding the parentheses, we must add the two numbers first.
|
||||
stage.find('#line'+(i+100)).fontStyle('normal');
|
||||
}else{
|
||||
stage.find('#line'+(i+100)).fontStyle('bold');
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// write the code fragment into the code box.
|
||||
for (let i=0;i<code_list.length;i++){
|
||||
// the array starts from index 0, but we want ids to be counted from index 1.
|
||||
// here we add 100 so as to differentiate from the code array.
|
||||
let t=makeCode(260,60+(i*20),code_list[i],i+1+100);
|
||||
layer.add(t);
|
||||
}
|
||||
|
||||
function increment_itr1() {
|
||||
text_itr.x(text_itr.getX()+100);
|
||||
pts[0] = pts[0] + 100;
|
||||
pts[2] = pts[2] + 100;
|
||||
itr_arrow.points(pts);
|
||||
}
|
||||
|
||||
function increment_itr2() {
|
||||
text_itr2.x(text_itr2.getX()+100);
|
||||
pts2[0] = pts2[0] + 100;
|
||||
pts2[2] = pts2[2] + 100;
|
||||
itr2_arrow.points(pts2);
|
||||
}
|
||||
|
||||
// draw the image
|
||||
layer.draw();
|
||||
stage.add(layer);
|
||||
|
||||
var targetPoints = [1010, 485, 1100, 585, 1200, 485];
|
||||
var arrow1 = new Konva.Arrow({
|
||||
points: [1010, 485, 1030, 485, 1050, 485],
|
||||
tension: 0.5,
|
||||
pointerLength: 10,
|
||||
pointerWidth: 10,
|
||||
id: "arrow1",
|
||||
fill: 'green',
|
||||
stroke: 'green',
|
||||
strokeWidth: 5,
|
||||
});
|
||||
|
||||
layer.add(arrow1);
|
||||
layer.draw();
|
||||
var arrow2 = stage.find('#arrow1');
|
||||
|
||||
// Create the animation
|
||||
var tween = new Konva.Tween({
|
||||
node: arrow2,
|
||||
points: targetPoints,
|
||||
duration: 2, // animation duration in seconds
|
||||
easing: Konva.Easings.Linear
|
||||
});
|
||||
|
||||
var pts_p = arrow_p.points();
|
||||
function increment_p() {
|
||||
text_p.x(text_p.getX()+160);
|
||||
pts_p[0] = pts_p[0] + 160;
|
||||
pts_p[2] = pts_p[2] + 160;
|
||||
itr2_arrow.points(pts_p);
|
||||
}
|
||||
|
||||
var pc2=1;
|
||||
// erase 5 from this list.
|
||||
function list_insert_nextstep() {
|
||||
if(pc2 == 1){
|
||||
makeBold_list(1);
|
||||
drawListNode(600, 560, '?', 6);
|
||||
layer.add(text_q);
|
||||
layer.add(arrow_q);
|
||||
layer.draw();
|
||||
pc2=pc2+1;
|
||||
}else if(pc2 == 2){
|
||||
makeBold_list(2);
|
||||
stage.find('#list_node_text_6').text('4');
|
||||
layer.draw();
|
||||
pc2=pc2+1;
|
||||
}else if(pc2 == 3){
|
||||
makeBold_list(3);
|
||||
targetPoints = [720, 585, 700, 550, 600, 485];
|
||||
stage.find('#list_arrow_6').points(targetPoints);
|
||||
layer.draw();
|
||||
pc2=pc2+1;
|
||||
}else if(pc2 == 4){
|
||||
makeBold_list(4);
|
||||
targetPoints = [560, 485, 565, 530, 600, 585];
|
||||
stage.find('#list_arrow_2').points(targetPoints);
|
||||
layer.draw();
|
||||
pc2=pc2+1;
|
||||
}else if(pc2 == 5){
|
||||
makeBold_list(-1);
|
||||
var shape = stage.find('#arrow_p');
|
||||
shape.to({
|
||||
opacity: 0,
|
||||
duration: 2,
|
||||
});
|
||||
shape = stage.find('#arrow_q');
|
||||
shape.to({
|
||||
opacity: 0,
|
||||
duration: 2,
|
||||
});
|
||||
shape = stage.find('#itr_p');
|
||||
shape.to({
|
||||
opacity: 0,
|
||||
duration: 2,
|
||||
});
|
||||
shape = stage.find('#itr_q');
|
||||
shape.to({
|
||||
opacity: 0,
|
||||
duration: 2,
|
||||
});
|
||||
layer.draw();
|
||||
pc2=pc2+1;
|
||||
}else if(pc2 == 6){
|
||||
alert("End of animation! Refresh the page if you want to re-run the animation.");
|
||||
layer.draw();
|
||||
pc2=pc2+1;
|
||||
}
|
||||
}
|
||||
|
||||
/* vim: set ts=4: */
|
||||
Reference in New Issue
Block a user