I am currently working on a website which will be used for displaying scores in several benchmarks. In order to accomplish this, i am using PHP(duh :D) for the database queries and the JPGraph library, which creates the graph and then displays and it as an image with the GD library.
The user of the site can select which chart he wants to see with a <form> that contains the following criteria:
The Client that ran the test
The Operating System the Client used at the time
The Benchmark that was used
And what type of chart he wants to see (Bar graph, line graph....)
All of this works fine, the graph is displayed without a problem in the <iframe> that it is supposed to be in.
However, I also want the user to be able to save the Graph, with, say a second button. I can get the GD handle of the image, but how can I use this to save the image to a file on the client?
Any help would be very welcome.
Regards, Andy
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How could I use imagegrabscreen to get a thumbnail image and a full size image of a specific website.
I was thinking that I could have an array that I feed the wanted uri's into but I am a bit stuck on how I would set the wxh of the image I need to grab. I also think that I would need a thumbnail class and a fullimage class and call them when required.
Any better Ideas?
Keep in mind that imagaegrabscreen is Windows-only. If you have multiple displays set up, this function will only grab the primary display. Also, for this to work, your Apache service must be set to Allow service to interact with desktop otherwise you will just get a blank image.
This discussion covers the use of imagegrabscreen pretty well: Getting imagegrabscreen to work
There are a lot of other discussions about saving webpages as images, too - here are a few:
Website screenshots
Web Page Screenshots with PHP?
How can I generate a screenshot of a webpage using a server-side script?
PHP: How to capture browser window screen with php?
What is the best way to create a web page thumbnail?
Screenshot of current page using PHP
shell tool which renders web site including javascript
In any languages, Can I capture a webpage and save it image file? (no install, no activeX)
Image this scenario:
There is a picture locally in my server, where a sketch is displayed, and there is a "blank hole" area on it.
Then, a user can upload another picture to my server.
What i'm trying to achieve is this:
After image upload is finished, the first image (the one with the "hole") is displayed, and behind it is displayed the user's photo, so that you can see it through the "blank hole" area of the first photo.
Then the user can move his picture (drag & drop style) so he can choose which area of it is visible through the "blank hole".
Then i would like to save the result - by merging the 2 photos or keeping the position of the user's picture in a db so i can display it again later.
(Something like this more or less)
What kind of technollogy should i look for? I'd guess javascript(for the drag & drop) or html5 or php(for merging the photo)?
Are there any libraries that i can use?
I hope my explanation isn't too messy, i didn't even know how to google for it.
I don't know if there are better solutions (and I suspect there are), but I suspect all of this can be done with not too much trouble. Here's a rundown of one way to approach the problem:
Use a JavaScript-powered "upload widget" such as uploadify to enable your user to upload "his" image to the server. The server will do some processing on the image (e.g. resize and crop to suitable dimensions) and save it using e.g. PHP's gd library. It will return a URL to the "prepared" image back to the browser -- all of this through AJAX.
The browser then has a URL to the user's image, so using more Javascript you can dynamically add an element that displays it inside the page and allow the user to move it around with e.g. jQuery draggable. Compositing the draggable image behind your static content (the image with the "hole") is a detail you will have to take care of using a combination of HTML, CSS and again Javascript.
When the user is done, use an AJAX call (e.g. again jQuery) to inform the server of the image's positioning (this will be available through the facilities of the Javascipt framework you have selected). The server can then "compose" the two images together (gd or something equivalent once more) and return to the browser a URL through which the final product can be accessed.
Of course there are lots of details to take care of here, but knowing exactly what the plan is should help you get started.
Have a look at the PHP GD extension. If it's installed, it's pretty easy to have an image (with a transparent center) to be merged on top of a second image that a user would upload.
Have a look at http://php.net/manual/en/function.imagecopymerge.php
Ok to get you started, yes use a JavaScript drag and drop module for the placing of the image. You can record the x /y cordinates relative to the container. Do the image merging with a PHP image library / Class. Something like this : http://www.phpclasses.org/package/3930-PHP-Generate-an-image-from-the-combination-of-2-images.html
I'm working on a website for a specific client. And he wants to be able to add link to the website, and on mouse hover to have a image of that website appear.
Now, he doesen't want to take an image of the website, he only wants to input the link and have the website do everything else.
So my question is ->
Is there a way (eg. google API) to get a website image only by providing the url via php?
Sort of like in google, when you hover over a lik of a page, a tooltip pops up to the right with an image.
Any help is, as always, appriciated :)
Here is a list of 10 free thumbnail services
http://www.webresourcesdepot.com/10-free-website-thumbnail-generation-services/
You can simply refer to the URLs of these services, e.g.
<img src="http://SnapCasa.com/Get.aspx?code=[code]&size=[size]&url=[url]" />
or make a CURL call from one of your PHP scripts and temporarily store/permanently save the image that was generated.
Have recently developed Thumbnailspro.com. It is currently free to use while in beta testing as we work out the bugs, but so far its getting quite popular, you can request thumbnails directly from your website using the code below :
http://thumbnailspro.com/thumb/http://msn.com&s=150
s=Size, size can be anywhere from 10 to 1000 pixels just add s=300 to display a thumbnail 300 pixels in width. We are trying to add more options as we go for thumbnail requests and at the same time trying to keep it as simple as possible so you don't have to enter something like the code below to get your thumbnails :
http://somethumbnailsite.com/viewurl.php?url=http://msn.com&x=200&y=300&bwidth=1024&bheight=768&rotate=76&what_the_hell%20_is_all_this_crap!
So is much more effecient!
Like the service or have any bugs contact us at admin#thumbnailspro.com!
No. The only way to do this is to request the HTML for the page, render the page and then create a thumbnail from that page render. Google does this because in the process of spidering the web, they already get all that data, and they've got a nice optimized rendering engine (Chrome) that they can put the data through, and then they've got tons of online storage space to store the cached image. There's a lot of work there, though.
Frankly I am not sure where this would go but I assume the way to create what I'm about to describe is PHP... so I'm sorry if it's in the wrong section.
Basically I have a website, using Wordpress, where users can review websites and post a 5 star rating of the site. Each reviewed website has it's own dedicated page.
So what I want to do is create an image from the statistics of the ratings to allow the website owners to place it on their page. The image will need to, when clicked, go to that it's review page.
So the image would be about 150x150. Have the overall 5 Star Rating, the Name of the Reviewed site and the name of my website. It would also be cool if there was some automatically generated HTML embedding code so the site owners can simply copy and paste it.
I hope I explained myself ok. I've tried searching google but I'm not entirely sure what to search for and therefore have found nothing useful.
Thanks.
EDIT
I can create the embed code manually. I just need to really know about how to make the picture update automatically.
Hey what you are asking for is quite complex and it would be to easy to just give you code. So here is some reading for you. Your problem is quite meaty and no doubt you'll learn loads sorting it out....
http://www.phptutorial.info/learn/create_images/
http://www.qualitycodes.com/tutorial.php?articleid=20&title=How-to-create-bar-graph-in-PHP-with-dynamic-scaling
I just need to really know about how
to make the picture update
automatically.
Just put URL to your php-script, which will generate image.
You will need function imagettftext to write text over the image, imagecopy to draw the stars (of votes).
Also, you will need image of a star and background.
So, approx. algorithm will be:
1. Open the background image by imagecreatefrompng - it will be our generated image
2. Open the Star image
3. Write title of the reviewed site by imagetttftext
4. Draw stars by copying existing Star image to our background image (by imagecopy)
5. Print generated image by imagepng
My app is posting to users' Facebook walls, and linking to a page they have created. The page is in html. I'd like to be able to put a thumbnail of the page as the image on the wall post. I'm not sure whether this is possible or not. Anyone have any ideas?
If it helps, the page itself is stored as a series of 'elements'... for each one, I know the size and position of the element, and the content (which may be text or an image). So I can pull all that in from the database.
I guess it would be sufficient to create a thumbnail using php at the point when the user clicks 'Publish This to my wall', if that's easier than doing it on the fly - I can save the image and then link to it.
Any ideas?
I create thumbnails for my site using CutyCapt, which works very well indeed on both Windows and Linux. You can use exec to invoke this from php.
There are also web services that allow you a quota of free thumbnail snapshots, that are easy to integrate into your website. e.g.
http://www.websnapr.com/
or
http://webthumb.bluga.net/home
I figured out how to do this. I used the PHP gd library, which allows you to create a base image and then add images and text. Works pretty well.