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Thread: Help with Uni question
10-02-2012, 08:06 AM #1
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- Oct 2012
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Help with Uni question
I have been given this exercise to complete for my Uni class, but am having great difficulty making it work.
Find an image on the internet that you like and copy its URL.
o Make sure it will fit in the dimensions of the canvas!
Put this code after you declare the context but before you do any drawing:
var myImage = new Image();
myImage.src = ###
// paste your URL instead of ###!
The first line declares a new image variable.
The second line fills the image variable with the contents of the image at the specified URL
(this is called the source, and can either be an image on your computer or on the internet).
The image wont display yet because even though it is in memory, it is not being drawn.
Try to figure out how to get the image displaying on the screen using the canvas
Once you have done this, create several different images on your hard drive and display
them all at various locations on the canvas.
i have tried adding a source file under the context variable, and before the actual drawing part, but nothing happens. I tried using myImage.drawImage for the drawing part but still ntohign happens. Can someone please help me.
10-02-2012, 08:23 AM #2
- Join Date
- Jun 2002
- London, England
- Thanked 2,508 Times in 2,486 Posts
This forum is not a free coding service. As a general rule, the people helping out in this forum don't write code for others (especially code that appears to be for homework), but try to help with fixing code that doesn't work. You may perhaps get someone to write this script for you, but you'll be far more likely to get help if you have made a substantial effort and written some code yourself. Then someone here will almost certainly help you correct/improve your work.
Have a look at https://developer.mozilla.org/en-US/...l/Using_images
It is your responsibility to die() if necessary….. - PHP Manual
Last edited by Philip M; 10-02-2012 at 08:29 AM.
All the code given in this post has been tested and is intended to address the question asked.
Unless stated otherwise it is not just a demonstration.