I should start by saying i'm quite new to jquery.
I come from a flash background and am trying to update my skills so am creating a masked-growth animation of a tree and have the following so far: http://s46264.gridserver.com/dev/dave/tree_animation/trunk.html
The idea is obvious, i want the tree to grow from the base, branch by branch so the trunk reveals first and then each branch. I'm using divs with hidden overflows and am animating the width and height properties to reveal each segment.
I had a bit of trouble figuring out how to animate width from right to left as opposed to left to right so am using containers floated to the right for both left-hand branches to reverse the animation direction (not sure if this is best practice but was the best I could do?)
The next step is the leaves (i've had these fade in at the end so you can see what they look like).
My idea is to separate all the leaves into pngs and position them in the correct place, then i want to reveal each of them individually from specific points of origin (the root of each leaf which appears in different places) and reveal each leaf by animating the height/width in the opposite direction.
So a few questions:
What's the best way to do masked reveals of objects while being able
to control the reveal direction i.e. left-to-right, top-to-bottom,
bottom left-to-top right etc?
Am i doing this the right way?
Is there a better way to do this?
Should i be using jquery or would html5 canvas be better?
Is there a less convoluted way to achieve what i'm looking for? The
whole absence of masking and being able to control animation
directions without floating things seems backwards to me.
This would all obviously be very simple on flash timeline but i
don't seem to have the same tools available in jquery? Am i missing
something and how would you do this?
Thanks for taking the time to read. Very determined to do this in standards-based tools!
Related
So essentially what I am looking to do is have a section that has a solid background at some point on my page, and at the top of that a pair of sunglasses that as you begin to scroll, the reflection of the sunglasses changes from a few different images, as well as some text changes below the sunglasses to match each change in the sunglasses. Then once the final image is scrolled through, you reach a new section with different information. I am not entirely sure what this effect is called or how to achieve it, though I am guessing it will require a significant amount of jquery.
An existing website that demonstrates the effect I am trying to achieve is https://software.dakno.com/ with the phone effect in the second area down the page. (I do not own this site nor am I affiliated with the owners). I used chrome developer tools to figure out how it is working, but didn't get too far.
The site that I am working on is http://zack2171.github.io . This is an example site I am using to practice css and web design. The second section is where I am trying to get this effect to work. If someone could help me out a bit and give me some pointers, that would be great. Thanks
To achieve your goal, your definitely looking towards a mixture of jQuery and css. Most of your time will be dedicated towards the scroll position and at what pixel (Scroll distance) is covered to showing your images/text. I would start to align your image that you want in a position that is either fixed or absolute, to give you a better adjustment. Then start to play around with jQuery's Scroll Position. My personal approach would be to to detect the distance scrolled and after reaching those milestones (Half a page / 3/4 of a page) you would use jQuery to verify the position and then display those extra materials you want to show. I hope this kind of let you onto a good starting path.
Quick example, scroll down within the script below and check the console it logs!
$(window).scroll(function() {
console.log($(window).scrollTop());
})
.box {
background-color:#333;
height:5000px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="box"></div>
I have been doing an fancy rotating menu last few days with using transition effects and unfortunately I needed to use jQuery script for it.
Back to the point. I have developed advanced stage of menu and now struggling with navigation arrows. Moving with keyframes direction so from left to right is quite right (it's getting little messed after few clicks)
However if you click an right arrow for example three times each one by one and then click left arrow it's starting from original position instead where does it has been stopped.
I just ran out of ideas how to solve it in appropriate way.
I have prepared an example of my work. Most of elements are dropped due to keeping it much simple way
jsfiddle
NOTE - I am aware that I should use -webkit- but for this stage I am keeping it like this
I would greatly appreciate your help.
I am working on a map that is divided into 800x800 150 pixel tiles. These tiles are contained within a jQuery draggable wrapper, which moves the contents of the tiles around inside the parent to achieve a Google Maps style dragging effect. The top left corner is 0,0 and the bottom right is 799x799. I am looking to replicate Google's tiling effect where the user can drag to the left or top of the start point or the right or bottom of the end point and see the tiled (repeated) contents of the DIV in a seamless manner. Using Clone is not an option as it creates duplicates of an already very large (albeit not yet optimised) source which seriously hampered the load times of the page when dragging was performed.
I could best summarise this by saying I need the map itself to have the visual effect and user experience of looping endlessly, but actually only using one instance of the map source. The resulting effect would not be too dissimilar to the repeating background of an image on a page, except with the contents of the map DIV and not an image. When the user drags the map left of anything on the 0 X Axis, it should display X 799, X 798, etc.
I have not had any luck searching for a solution. Is such an effect possible? If so, what would I need to use to achieve it? I am content with simple answers to point me in the right direction; I do not expect somebody to produce a working example that I can cut and paste. Not afraid to research and experiment myself, my problem is I really don't know where to start. I have plenty of experience with Javascript and jQuery but I've never had to do anything quite like this.
I am developing a mobile web application using jQuery and i have been requested to have each page transition into the next with an animation where the page is "split in half", then have the upper part slides up and the bottom part slides down, thus revealing the next page.
I have a small idea, but i dont seem to have the knowledge to get trough:
2 Canvas with display: none, each width width: 100%, height: 50%. - Check
Have the actual display be rendered into said canvas's - I have not the slightest of ideas.
Ajax the next page in a div below both canvas's - Check
Slide the canvas's in the respective directions - Check
Set the canvas's to display: none and restore them to their original positions - Check
Any thoughts? I'm open to use any other framework appart from jQuery, if that's the need. I am also open to change my canvas idea into something else.
EDIT:
As for clarification imagine the page to be a closet, but a vertical one so its doors (the actual page) will slide into the roof and the floor respectively (Its not the greatest of comparisons, but please bear with me) and thus let you see and interact with the content of the closet (The next page). This will go on and on until the application's workflow ends at the last screen, as there will be no back button.
I'm pretty sure I know what you want. You have multiple pages in your registration/form process and instead of having the old fadein/fadeout or sliding effects, you want the top half to slide up and the bottom half to slide down. In order to do this, I'd dump the canvas idea. I don't think that there's an easy way to do it using canvas as of right now. You could try using the html2canvas script, but it's not 100% accurate when it comes to rendering things like this.
As an alternative, I'd recommend using the following process. As a preface, make sure that every step in your form has its own container div (called something obvious like "step-wrap" or "step-container"). Then, when you begin the animation, the first thing to do is to duplicate the current step-wrap, calling it something like step-wrap-animation. Give the original wrap, step-wrap, a height of 50% and position the duplicate below the first with the same height of 50%. Both of the divs should have styling that has an overflow of hidden. Make sure, also, that you set the scrollTop of the duplicate div to scroll to the bottom so that it looks like a continuation of the first div. Everything from here should be smooth sailing.
Second, once you have everything in the first step working, start the animation process. You can do this however you want now that we have the splitting functionality figured out. Make sure that before you start splitting the two divs apart you put the next step behind the previous so that it unravels.
Essentially, what you need to do is:
Duplicate the div
Position both divs (the original and the duplicate) so that both the heights equal 50% and they look like continuations of each other
Animate the top div up, bottom div down
Here's a basic fiddle illustrating how something like this should work. Click on the rendered screen to get the animation going.
Take a look at backbone.js and marionette.js based on backbone.js.
backbone.js is MVC framework where you can define separate views. Marionette is an extension which supports regions and switching views based on whatever you want. Inside switching logic you can easily implement your transitions. Very generic answer but perhaps it will help you to get started.
I have been trying to understand how they did those effects in http://artofflightmovie.com/ with no success so far. I am not even sure what to google for for help. Could any one ellaborate on it and perhaps put links to plugins\tutorials\other websites doing the same thing?
There is already a similar question, but it didn't help me a bit ^^
Custom scroll bar behavior in Javascript?
All of the answers here so far are spot on and cover various pieces of the execution. Joseph's post about how we 'contained' and 'maneuvered' the site are dead-on, and those mentioning jQuery accurately depict our heavy reliance on it :)
With that said, the other concept of moving along a non-linear path was probably the most difficult part. We literally used an Illustrator file that was setup like a piece of graph paper and drew a bezier path that reflected the movement we wanted from the scrollbar. Then we 'downsampled' the path by converting the curved lines into a bunch of straight lines that represented the curve (similar to downsampling audio waveforms) to keep performance/speed high. We took those coordinates, gave them to our designer, and he created a gigantic design file and literally designed each content section at the designated 'stop' points. Next we mapped each coordinate along the path to a percentage value of the scroll position. We stored these values in a JavaScript array. Lastly we wrote some JS functions that we pipe the scroll position through to determine how to offset the positioning of the site 'container'. (It basically 'tweens' between each coordinate allowing us very fine/precise values at any given scroll percentage) The scroll functionality is handled by a tall div that basically sets our document height to force a scrollbar, and we just read it's position during a Scroll Event and slide the container around to where it should be using the above mentioned functions.
The parallax effect is achieved by applying a percentage of the position offset (what we use to move the container around) and applying it to the sub-containers of the various content sections. This makes the subcontainers move slower or faster than the background, but on the same motion path.
Lastly, the little snowboarders and helicopters (which have CSS3 rotations in addition to x,y movement in some browsers!) are positioned by using a simliar array of 'start' and 'end' positions and tweening between them based on the scroll percentage.
I'll leave it at that to keep this from turning into a book, but I'd be happy to elaborate on specifics if you're interested.
Full disclosure: I was lead developer on the site. I'm not posting to 'toot my own horn' or anything like that, just to be helpful and provide assistance to a fellow tinkerer. I come here a lot to dig through and get insight from others. (many, many thanks to those who have helped us!) Also, shameless plug, but the film is breath-taking... go rent it if you haven't yet, you won't be sorry. :)
That's a pretty cool website ;)
Basically using some javascript you can detect how far a person has scrolled. Considering the amount of scrolling you can move the contents of your webpage around if their position is absolute.
There are a couple of jQuery plugins that allow you to do simular stuff although I'm not sure you can "scroll through" a sequence of coordinates.
Here are a couple of jQuery plugins that helps you get simular effects:
http://johnpolacek.github.com/scrolldeck.js/
http://johnpolacek.github.com/scrollorama/
http://demos.flesler.com/jquery/scrollTo
http://webdev.stephband.info/parallax.html
I just picked a couple I'm familiar with but there are many plugins that are alike.
edit:
Decided to add some more simular websites for your pleasure.
http://www.activatedrinks.com
http://www.beetle.de
http://www.nikebetterworld.com
the whole page is an "overlay" - a full width and height wrapper <div>. sort of how modal windows do their "full page shadow" effect and have a small div float inside. the whole page content is in that wrapper. the scroll path is a script. the script captures the body scroll and moves the contents of the div accordingly to the positions provided by the script. with a body long enough to be scrollable (which cannot be seen since the wrapper covers the whole page), it's as if you are scrolling sideways, upwards etc.
an analogy is a modal window. the wrapper is the full-page shade. the modal window is the content. and notice how modal windows stick to the middle? that's using a script to calculate it's position to stay in the middle by moving the modal window down, relative to the page's top. but in that website's case, they move in different directions.
It doesn't seem too complicated.
Using the .scroll(function() {}) in jQuery you listen for a scroll event. When triggered you set the position style (left, top) of the content div to give the appearance of moving sideways instead of down.
I guess you'll need overflow:none property on the div to prevent users from scrolling over the area you don't want them to see.
Sounds like a lot of effort for a clunky user interface in my opinion.