I want to have dynamic ajax plugin to show a speedmeter on the page.
One Idea is that I set a background and rotate the needle.
Anyone knows about a related plugin?
Here are some for your reference
http://bernii.github.com/gauge.js/
https://github.com/vjt/canvas-speedometer
And lots of more at Drawing a half gauge/speedometer (JavaScript Canvas or Java Swing Example needed)
Related
Does anyone know what javascript library can I use to draw a timeline such as the one below ?
Actually, I've found the Timestack.js library but the main issue is that I can't align boxes (i.e. I can't put every boxes at the same height, as below)...
Thanks for your help :).
The Google zeitgeist 2013 page displays a regular image grid, and it repeats in both horizontal and vertical mouse drag movement. It looks amazing!
Is there an existing js open project does the same as Google zeitgeist 2013?
I think they are using CSS transforms to achieve this. Have a look at this short .gif animation that I have captured while moving browsing the Zeitgeist page, can you note how the transform property is changing the values dynamically. I am of the opinion that it's CSS based but there is JS playing its part, probably.
I also inspected their 4 JS files and they all seem to be either Angular JS or Prototype libraries, and there's seems to JS involved in there too, if you note the selector js-detail--searches_grid It's a custom solution by Google though, so I am not aware of any similar implementation, but if you put enough time studying its working, i.e. reverse engineering, you can create one too.
I have done some more investigation into this and it turns out it is using CSS transform matrix, which you can look here. It's a complicated thing to understand at first, but very rewarding. The matrix method take six parameters, containing mathematic functions, which allows you to: rotate, scale, move (translate), and skew elements. This is evident from the code used by Google (see the 6 parameters in the image I've supplied).
I am working on an ecommerce website for Glasses. Where I want to put a feature to try the glasses on your face or on some sample faces. The perfect example for this is one this site
http://www.glasses2you.co.uk/prescription-glasses/gender/mens-glasses
See the Try in Mirror option on this website.
I can see it has been built using Flash Actionscript.
Any suggestion how can I build this using Javascript through jQuery or such related tools?
Thanks in advance.
Simply position the image of the glasses on top of the photo.
You can do this with CSS, which can be set with JavaScript. Use the CSS position property.
For your source images of glasses, use PNG so that you can have a proper alpha channel. You will probably want to specify offsets for each image individually.
I am reconstructing a massive collection of medical modules that were created in Flash. All of the modules are being redesigned for cross platform enjoyment (js and HTML5). I have been searching for a library or plugin that will add arrows(with rollover capabilities) and text above an image when the user clicks a button. I have had little luck.
The closest package I have found is Zoomify, but it's still not what I am looking for. They are asking for too much money for maximum development capabilities. I was really hoping to find a JQuery plugin or javascript library that would allow me to fully customize the interface. Here is a screenshot of an OLD FLASH module:
The red arrow corresponds to the link selected on the left. The new design is much more appealing but the underlying idea is the same, click buttons point to the objects.
If there is no such library or plugin should I create a simple javascript image viewer and store overlay coordinates in a database? Or is that overkill? I have hunderds of these things to do... maybe thousands :( Any help/direction would be greatly appreciated.
What you are asking for is provided by CSS, which enables one to place text directly on top of an image or other rendered HTML. The key CSS properties to investigate are:
position set to 'absolute'
values for at least two of top, right, bottom or left
use z-index to specifying layering/order
Lightbox is a good option "Lightbox is a simple, unobtrusive script used to overlay images on top of the current page. It's a snap to setup and works on all modern browsers."
I am setting up a drag and drop interface using jquery and jquery-ui. I've got element snapping working, which is nice, but now I'm trying to get elements to snap at a distance, using some sort of automatic temporary guide rulers.
A very good implementation is on the mac version of Powerpoint. Here's a screenshot of a drag in progress:
Is there some sort of jQuery plugin that exists for this? If there isn't a plugin, is there some easy way to draw lines that would be snap-able? Is there algorithm for dealing with calculating points and working out which lines to create?
You could always copy/paste the snap-part of the draggable.js and change some css values. That would be the easiest way to implement it, since the base is already written in jquery-ui.