Databases
StackOverflow2013
Postsdbo
POjavascript svg animation
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POjavascript svg animation
    primarykey
    data
    text
    <p>How would I write script that would move a shape in svg linearly with javascript. I want to use requestanimframe. </p> <p>Here is an example using canvas. I just want to do the same thing except with svg.</p> <p>The script obtains a context to the canvas then it uses javascript to draw a shape with the properties of the context. Then it manages the animation of the shape on the canvas in a linear motion. I just want to use svg for the shape instead of the canvas context properties.</p> <pre><code>&lt;!DOCTYPE HTML&gt; &lt;html&gt; &lt;head&gt; &lt;style&gt; body { margin: 0px; padding: 0px; } #myCanvas { border: 1px solid #9C9898; } &lt;/style&gt; &lt;script&gt; window.requestAnimFrame = (function(callback){ return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function(callback){ window.setTimeout(callback, 1000 / 60); }; })(); function animate(lastTime, myRectangle){ var canvas = document.getElementById("myCanvas"); var context = canvas.getContext("2d"); // update var date = new Date(); var time = date.getTime(); var timeDiff = time - lastTime; var linearSpeed = 100; // pixels / second var linearDistEachFrame = linearSpeed * timeDiff / 1000; var currentX = myRectangle.x; if (currentX &lt; canvas.width - myRectangle.width - myRectangle.borderWidth / 2) { var newX = currentX + linearDistEachFrame; myRectangle.x = newX; } lastTime = time; // clear context.clearRect(0, 0, canvas.width, canvas.height); // draw context.beginPath(); context.rect(myRectangle.x, myRectangle.y, myRectangle.width, myRectangle.height); context.fillStyle = "#8ED6FF"; context.fill(); context.lineWidth = myRectangle.borderWidth; context.strokeStyle = "black"; context.stroke(); // request new frame requestAnimFrame(function(){ animate(lastTime, myRectangle); }); } window.onload = function(){ var myRectangle = { x: 0, y: 50, width: 100, height: 50, borderWidth: 5 }; var date = new Date(); var time = date.getTime(); animate(time, myRectangle); }; &lt;/script&gt; &lt;/head&gt; &lt;body onmousedown="return false;"&gt; &lt;canvas id="myCanvas" width="578" height="200"&gt; &lt;/canvas&gt; &lt;/body&gt; </code></pre> <p></p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USalphadev
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POjavascript svg animation
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POjavascript svg animation
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POjavascript svg animation
      1. This table or related slice is empty.
      1. VTUpMod
    1. COInstead of using `requestAnimationFrame` why wouldn't you just use SVG's built in animation primitives?
      singulars
      1. POjavascript svg animation
      1. USrobertc
    2. COI was reading an article on http://www.i-programmer.info/programming/graphics-and-imaging/3254-svg-javascript-and-the-dom.html. I am trying to understand how to apply this to the concepts I am learning about how to animate javascript / canvas.
      singulars
      1. POjavascript svg animation
      1. USalphadev
    3. COBut here you're animating SVG, not canvas?
      singulars
      1. POjavascript svg animation
      1. USrobertc
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload