I'm trying to place a SNAP svg script into a div and am lost as to how I should do this.
Right now here is the html I am working with:
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>OH SNAP SVG 2014</title>
<script src="Snap.svg-0.1.0/dist/snap.svg-min.js"></script>
<style>
body{
background:#FFF;
}
</style>
</head>
<body>
<script>
var paper= Snap(700,600);
var c = paper.image("clock machine.svg", 200,100,500,480);
var b = paper.image("new years ball.svg", 406,20,200,200);
var p = paper.image("button.svg", 258,508,35,35);
var l = paper.image("lights.svg",406,20,200,200);
var g = paper.group(b,l);
var clickFunc= p.click
g.transform("R90");
p.click(function(){
g.animate({transform : "t0,227" }, 5000, mina.easein );
T.animate({transform : "t-2557,0,"}, 4900,mina.linear);
});
g.attr({x:250})
var T = paper.image("LCD Text.svg", 620,453,2500,85).attr({
fill: "#3FFF9B"
});
var c = paper.rect(365, 454, 263, 85, 3).attr({mask:T,
fill:"#3FFF9B"
});
</script>
</body>
</html>
That is what I have so far. Does anybody know how I would specifically put this into a div? I read the documentation and have tried a couple of things, but my results have been futile.
Any help would be much obliged.
You can put an svg tag inside the div and attach to that, so it would look something like...
<div id="mydiv">
<svg id="mysvg"></svg>
</div>
s = Snap("#mysvg");
s.rect(100,100,200,200);
example jsfiddle here showing the above with css on the div.
Related
I have two canvases. I'd like to draw a green circle on the first canvas when clicking on it and a red circle when clicking on the other canvas.
The code below works only for the first canvas. I'd like to know how I can pull off my original idea.
HTML:
<!DOCTYPE html>
<html>
<head>
*** Import jQuery + Paper.js ***
</head>
<body>
<canvas id='firstCanvas'></canvas>
<canvas id='secondCanvas'></canvas
</body>
</html>
JS:
$(document).ready(function() {
paper.install(window);
paper.setup(document.getElementById('firstCanvas'));
var tool = new Tool();
tool.onMouseDown = function(event) {
var c = Shape.Circle(event.point.x, event.point.y, 20);
c.fillColor = 'green';
};
paper.view.draw();
});
Thank you in advance.
With kind regards,
You could use PaperScope, and activate each scope with scope.activate() then draw in the activated scope.
It's in the paper.js docs here http://paperjs.org/reference/paperscope/
I'm new to js and html, I would like to get into Aframe.
I want to go from declarative form to create a scene to programmatical way using js to create it :
<!DOCTYPE html>
<html>
<head>
<title>JavaScript - A-Frame School</title>
<meta name="description" content="JavaScript - A-Frame School">
<script src="https://aframe.io/releases/0.8.0/aframe.min.js"></script>
</head>
<body>
<a-scene school-playground>
<a-box position="-1 0 -4.25" rotation="0 45 0" color="red" ></a-box>
<a-sky color="#ECECEC"></a-sky>
</a-scene>
</body>
</html>
To something like that :
<!DOCTYPE html>
<html>
<head>
<title>JavaScript - A-Frame School</title>
<meta name="description" content="JavaScript - A-Frame School">
<script src="https://aframe.io/releases/0.8.0/aframe.min.js"></script>
<script>
AFRAME.registerComponent('school-playground', {
init: function () {
var body = document.querySelector('body');
var sceneEl = document.createElement("a-scene");
var body = document.querySelector('body');
sceneEl.setAttribute("embedded", true);
sceneEl.style.height="700px";
sceneEl.style.width="100%";
sceneEl.setAttribute("school-playground", "");
var myBox = document.createElement('a-box');
myBox.setAttribute('position', {x:-1, y:0, z:-4})
myBox.setAttribute('rotation', {x:0,y:45, z:0}
myBox.setAttribute('color', "red");
sceneEl.appendChild(myBox);
body.appendChild(sceneEl);
//I also tried document.body.appendChild(sceneEl);
}
});
</script>
</head>
<body>
</body>
</html>
It doesn't seem possible to do it properly. Do I need to keep the scene statically defined ?
Thanks for your help.
Components initialize when attached to entities (https://aframe.io/docs/0.8.0/introduction/writing-a-component.html#using-property-data-from-a-lifecycle-handler). Your component is just registered but not associated to any entity so the init method won't run. You can programmatically create a scene as any other regular DOM component in JavaScript similarly to what you did but remember to do it outside of a component and append the scene to the document:
var sceneEl = document.createElement("a-scene");
...
document.body.appendChild(sceneEl);
You can also define your <a-scene> tag statically and then populate the scene:
sceneEl = document.querySelector("a-scene");
... create and append scene entities ...
sceneEl.appendChild(yourEntity);
I also recommend upgrading your A-Frame version to 0.8.0
Full runnable example on Glitch: https://glitch.com/edit/#!/conscious-way
<!DOCTYPE html>
<html>
<head>
<title>Hello, WebVR! - A-Frame</title>
<meta name="description" content="Hello, WebVR! - A-Frame">
<script src="https://aframe.io/releases/0.8.0/aframe.min.js"></script>
</head>
<body>
</body>
<script>
var sceneEl = document.createElement('a-scene');
sceneEl.setAttribute('background', {color: 'red'});
var cubeEl = document.createElement('a-box');
cubeEl.setAttribute('color', 'blue');
cubeEl.setAttribute('position', '0 1.5 -2');
sceneEl.appendChild(cubeEl);
document.body.appendChild(sceneEl);
</script>
</html>
Here's what I write for the moment (the scene does not appear):
<!DOCTYPE html>
<html>
<head>
<title>JavaScript - A-Frame School</title>
<meta name="description" content="JavaScript - A-Frame School">
<script src="https://aframe.io/releases/0.8.0/aframe.min.js"></script>
<script>
AFRAME.registerComponent('school-playground', {
/**
* Code within this function will be called when everything in <a-scene> is ready and loaded.
*/
init: function () {
//var body = document.body;
// var sceneEl = document.querySelector('a-scene');
var sceneEl = document.createElement("a-scene");
var body = document.querySelector('body');
sceneEl.setAttribute("embedded", true);
//sceneEl.setAttribute("class", "fullscreen");
sceneEl.style.height="700px";
sceneEl.style.width="100%";
var camera = document.createElement("a-entity");
camera.setAttribute("camera", "userHeight: 1.6");
camera.setAttribute("look-controls", {enabled: true});
camera.setAttribute("wasd-controls", "");
camera.setAttribute("active", true);
sceneEl.appendChild(camera)
//cylinder creation using the necessary attributes
var cylinder = document.createElement('a-cylinder');
cylinder.setAttribute('color', '#FF9500');
cylinder.setAttribute('height', '2');
cylinder.setAttribute('radius', '0.75');
cylinder.setAttribute('position', '3 1 -4');
sceneEl.appendChild(cylinder);
//box creation using the necessary attributes
for (var i =0; i < 50; i++){
var myBox = document.createElement('a-box');
myBox.setAttribute('position', {x:Math.random()* 5-2.5 , y: Math.random()* 5-2.5 ,z : Math.random()* 5-7})
myBox.setAttribute('scale', {x: Math.random() / 1.25, y: Math.random() / 1.25, z: Math.random() / 1.25});
myBox.setAttribute( 'material', {color: '#00bfff'});
myBox.setAttribute('material', {visible: true});
myBox.setAttribute('rotation', {x: 0, y: 0, z: 0});
sceneEl.appendChild(myBox);
}
document.body.appendChild(sceneEl);
}
});
</script>
</head>
<body>
</body>
</html>
Note: I just vastly simplified the program and have left it with the bare essentials ...
So I am trying to add graphs within a sigma.js graph. First, let me post the javascript (sigmaAngualr.js) ...
app = angular.module('sigmaAngular', []);
app.controller('NetworkDataCtrl', function($scope){
var i, s;
$scope.newName = null;
$scope.s = null;
$scope.N = 3;
$scope.newNode = function (id, label){
return {id: id,
label: label,
x: Math.random(),
y: Math.random(),
size: Math.random()+0.2,
color:'#333'}
};
$scope.addNodeGraph = function(id, label){
$scope.s.graph.addNode($scope.newNode(id, label));
console.log(id+'-'+label);
};
$scope.tempNodes = [];
for( i=0; i<$scope.N; i++ )
$scope.tempNodes.push($scope.newNode('id'+i, 'Node'+i));
$scope.s = new sigma({graph:{nodes:$scope.tempNodes, edges:[]}})
});
app.directive('showGraph', function(){
// Create a link function
function linkFunction(scope, element, attrs){
scope.s.addRenderer({container: element[0]})
};
return {
scope: false,
link: linkFunction
}
});
And here is the HTML ...
<!DOCTYPE html>
<html>
<head>
<title>Using AngularJS</title>
<script type="text/javascript" src='lib/sigma/sigma.min.js'></script>
<script type="text/javascript" src='lib/angular/angular.min.js'></script>
<script type="text/javascript" src='lib/sigmaAngular.js'></script>
<link rel="stylesheet" type="text/css" href="main.css">
</head>
<body ng-app='sigmaAngular'>
<div>
<div ng-controller='NetworkDataCtrl'>
<input type='text' ng-model='newName' />
<button ng-click='addNodeGraph(newName,newName)'> Add Node </button>
<hr>
<div show-graph id='graph-container' s='s' tempNodes='tempNodes'>
</div>
<hr>
</div>
</div>
</body>
</html>
Of course, I am unable to add a node to the graph.
I had also tried another option of creating an entire graph when I add a node. That doesnt work either. (This is no longer true)
Let me try to explain. Now,
When I refresh the browser, I do not see a graph.
When I resize the browser window The graph suddenly appears.
When I type a random name and hit the Add Node button, the graph doesnt change.
When I resize the browser window, the graph changes to reveal the new node.
So in summary, I have to resize the browser window to see any changes in the graph.
Just a side note: The css is below:
#graph-container {
position: relative;
width: 200px;
height: 200px;
border: 1px solid indianred;
}
I feel now that I am really close to solving the problem. Just a tiny bit off somewhere ...
Any help will be greatly appreciated!!!
So I'm trying to do some very basic div re-sizing based on the properties of the image contained within it. I know I can do something really basic like set the background an padding around the image and achieve the same effect, but this is sort of a personal challenge.
The problem I am having is that when I try to fetch the naturalHeight or naturalWidth values of the image, I get a value of 0. However, when I try to fetch these values using the console, they return the correct values. Also, my resizeDiv() function is coming up as undefined in console.
Here's the code:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>kitten_resize - WesGilleland.com</title>
<script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
var kittens = new Array("100x100_kitten.jpeg","150x150_kitten.jpeg","200x150_kitten.jpeg");
$('#kittens').attr('src', kittens[0]); //set the image
function resizeDiv() {
var img = document.getElementById('kittens');
var imgH = img.naturalHeight;
var imgW = img.naturalWidth;
$('div').width(imgW);
$('div').height(imgH);
console.log('Current imgH: '+imgH);
console.log('Current imgW: '+imgW);
};
resizeDiv();
});
</script>
<style>
div {
background-color: black;
padding: 10px;
margin: auto;
}
</style>
</head>
<body>
<div>
<img id="kittens" src='' />
</div>
</body>
</html>
You can also find a working copy here: http://www.wesgilleland.com/projects/kitten_resize/
I feel like it's something very basic that I'm missing; I haven't fiddled with this stuff since my associate's degree a year ago. Thanks to anyone who can help!
That's because your image isn't yet loaded when you read the original dimensions.
You should read the dimensions when the image is loaded :
var img = $('#kittens')[0];
img.onload = resizeDiv;
img.src = kittens[0];
I've created HTML and JavaScript files to display bulletgraphs, using the 'canvas' HTML5 tag. I've tried it in Chrome and it works nicely and changes width along with the size of the browser. I have to have this working in IE8, too, so I've used Excanvas, which is working in all except one way: when I resize the browser I get remnants of the valueIndicator. This only happens on IE8.
I've tried looking round for information on redrawing the canvas but I don't think this is the issue. Can anyone see where I'm going wrong, please?
EDIT
I'm keeping the complete code at the bottom, however, following advice I've cut my code down somewhat.
In IE8 it looks like this:
In Chrome it looks like this:
When I refresh the IE8 page it looks OK again.
Cut-down Bulletgraph.html:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Bulletgraph</title>
<!--[if IE]><script src="excanvas.js"></script><![endif]-->
</head>
<body>
<canvas id="graph1"></canvas>
<script src="Scripts.js"></script>
<script>
drawGraphs();
window.onresize=function() { drawGraphs() };
function drawGraphs() {
drawBulletGraph(getScreenWidth(),300,1000,350,"graph1");
}
</script>
</body>
</html>
Complete code:
Cut-down Scripts.js:
function drawBulletGraph (cwidth, left, right, loValue, id) {
var canvas=document.getElementById(id);
var cheight=30;
var multiplier=cwidth/(right-left);
canvas.width=cwidth;
canvas.height=cheight;
var valueIndicator=canvas.getContext("2d");
valueIndicator.lineWidth="1";
valueIndicator.moveTo((loValue-left)*multiplier,0);
valueIndicator.lineTo((loValue-left)*multiplier,cheight);
valueIndicator.fill();
valueIndicator.stroke();
}
function getScreenWidth () {
return (window.innerWidth || document.documentElement.clientWidth)/7;
}
Bulletgraph.html:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Bulletgraph</title>
<!--[if IE]><script src="excanvas.js"></script><![endif]-->
</head>
<body>
<canvas id="graph1"></canvas><br>
<canvas id="graph2"></canvas>
<script src="Scripts.js"></script>
<script>
drawGraphs();
window.onresize=function() { drawGraphs() };
function drawGraphs() {
drawBulletGraph(bgWidth(getScreenWidth()),300,400,450,600,700,1000,800,350,850,"graph1");
drawBulletGraph(bgWidth(getScreenWidth()),250,450,500,650,700,1200,600,350,850,"graph2");
}
</script>
</body>
</html>
Scripts.js:
function drawBulletGraph (cwidth, left, loRed, loAmber, hiAmber, hiRed, right, value, loValue, hiValue, id) {
var canvas=document.getElementById(id);
var cheight=16;
var colour="#008000";
if (value <= loRed || value >= hiRed)
{
colour="#FF0000";
}
else if (value <= loAmber || value >= hiAmber)
{
colour="#FFA500";
}
var multiplier=cwidth/(right-left);
canvas.width=cwidth;
canvas.height=cheight;
var red=canvas.getContext("2d");
red.fillStyle="#F4C3C6";
red.fillRect(0,0,cwidth,cheight);
var amber=canvas.getContext("2d");
amber.fillStyle="#F4F6C6";
amber.fillRect((loRed-left)*multiplier,0,(hiRed-loRed)*multiplier,cheight);
var green=canvas.getContext("2d");
green.fillStyle="#CCE5CC";
green.fillRect((loAmber-left)*multiplier,0,(hiAmber-loAmber)*multiplier,cheight);
var valueIndicator=canvas.getContext("2d");
valueIndicator.fillStyle=colour;
valueIndicator.strokeStyle=colour;
valueIndicator.lineWidth="2";
valueIndicator.moveTo((loValue-left)*multiplier,0);
valueIndicator.lineTo((loValue-left)*multiplier,cheight);
valueIndicator.moveTo((loValue-left)*multiplier,cheight/2);
valueIndicator.lineTo((hiValue-left)*multiplier,cheight/2);
valueIndicator.moveTo((hiValue-left)*multiplier,0);
valueIndicator.lineTo((hiValue-left)*multiplier,cheight);
valueIndicator.moveTo(((value-left)*multiplier)-(cheight/2),cheight/2);
valueIndicator.stroke();
valueIndicator.lineWidth="1";
valueIndicator.lineTo((value-left)*multiplier,cheight);
valueIndicator.lineTo(((value-left)*multiplier)+(cheight/2),cheight/2);
valueIndicator.lineTo((value-left)*multiplier,0);
valueIndicator.lineTo(((value-left)*multiplier)-(cheight/2),cheight/2);
valueIndicator.fill();
valueIndicator.stroke();
}
function getScreenWidth () {
return window.innerWidth || document.documentElement.clientWidth;
}
function bgWidth (screenWidth) {
var graphWidth=screenWidth/7;
if (graphWidth<70) {graphWidth=70;}
if (graphWidth>260) {graphWidth=260;}
return graphWidth;
}
I've managed to get a solution. It feels like a bit of a hack but it does the trick. Basically it involves drawing a white line round the canvas and filling it each time it's drawn again. The following code goes between the var valueIndicator=canvas.getContext("2d"); and the valueIndicator.lineWidth="1"; lines:
valueIndicator.fillStyle="#FFFFFF";
valueIndicator.strokeStyle="#FFFFFF";
valueIndicator.moveTo(0,0);
valueIndicator.beginPath();
valueIndicator.lineTo(0,cheight);
valueIndicator.lineTo(cwidth,cheight);
valueIndicator.lineTo(cwidth,0);
valueIndicator.closePath();
valueIndicator.fill();
valueIndicator.stroke();
valueIndicator.strokeStyle="#000000";
I've tried it in the full code and it works. If anyone has a more elegant solution, and I'm sure there must be many, I would still love to see them.