Image Not Loading on Canvas

Question

My issue is that I am having problems loading locally hosted images on to the canvas. I have tried hosting the code on a web server, using XAMPP, and locally, and the LightB

Answer 1

You were so close!

You need to put base_image.src after the base_image.onload function:

<script>
    var canvas  = document.getElementById('Section1Canvas'),
        context = canvas.getContext('2d');
    make_base();

    function make_base()
    {
        base_image = new Image();
        base_image.onload = function()
        {
           // test that the image was loaded
           alert(base_image);  // or console.log if you prefer
           context.drawImage(base_image, 10, 10);
        }
        base_image.src = 'images\Selection\Bag\Section1\LightBlue.jpg';
    }
</script>

Answer 2

One feature that prevents XAMPP from processing a canvas script is mod_rewrite.This is a simple fix, apparently. this is how..

1:
Open apache’s configuration file using your favorite text editor. The configuration file generally locates at:{apache_dir}/conf/httpd.conf If you are using XAMPP or WAMP package then you will find the file at:{xampp_dir}/apache/conf/httpd.conf {wamp_dir}/apache/conf/httpd.conf
2:
Search for the following string:#LoadModule rewrite_module modules/mod_rewrite.soand uncomment it (remove the ‘#’ sign).
3:
Now search for another string AllowOverride None and replace it by AllowOverride All
4:
Finally save the changes, close your text editor and restart your apache server.

That SHOULD set your localhost to the right paramaters.

Answer 3

there is a } missing in the function(). You opened it but forgot to close.

Answer 4

For me, putting the src after, makes things WORSE.. and here's the thing - in my case this is being updated every 25ms. Two needles first (not shown) then this little round cover over the needles.

The needles work absolutely every time - the top appears when it sees fit.

  ctx.save();
  ctx.beginPath();
  ctx.translate(cX, cY);
  if (centre.complete) ctx.drawImage(centre, kn1, kn2, kn3, kn4); 
  else centre.onload = function () { ctx.drawImage(centre, kn1, kn2, kn3, kn4); } 
  ctx.restore();