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POHow to build a Preview image by stacking transparent images based on Form selections using JavaScript?
 

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  1. POHow to build a Preview image by stacking transparent images based on Form selections using JavaScript?
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    <p>Using HTML, CSS, and JavaScript I need to build a Form with Selection input fields and Radio selection fields. When each one of these fields is selected, I need to build a Preview image based on the selection they made. </p> <p>Each field will have an Image associated with it and then it will also have that same image replicated for each color.</p> <p>So if there was 20 Form fields that a user could pick it would have 20 images x 10 different color options and would result in there being 200 possible images to build there preview image!</p> <p>Here is an image that shows an example of what I am trying to accomplish...the Vans website uses this technique for a custom shoe generator with preview... <img src="https://i.stack.imgur.com/O61hQ.png" alt="http://i.stack.imgur.com/O61hQ.png"></p> <p>When you pick a section and then the color for that section, it loads a transparent image and stacks them together.</p> <p>For testing, I have made a set of transparent images for a demo form with only 4 Fields and 3 color choices so 12 images in total. (All shown below)</p> <p>When all the fields have been selected it should build an image preview to the user that is similar to this...<br> <img src="https://i.stack.imgur.com/vfqs9.png" alt="http://i.imgur.com/JYJdBnN.png"></p> <p>or the Alternative has a Top/Roof more like an octagon type shape</p> <p><img src="https://i.stack.imgur.com/TDjTA.png" alt="enter image description here"></p> <hr> <p><strong>bottom_blue</strong><br> <img src="https://i.stack.imgur.com/7P8Ua.png" alt="http://i.imgur.com/fsG49zS.png"> </p> <hr> <p><strong>bottom_green</strong><br> <img src="https://i.stack.imgur.com/h2Bpc.png" alt="http://i.imgur.com/TdjBCXk.png"> </p> <hr> <p><strong>bottom_red</strong><br> <img src="https://i.stack.imgur.com/jAX1y.png" alt="http://i.imgur.com/UxCyzij.png"> </p> <hr> <p><strong>entrance_blue</strong><br> <img src="https://i.stack.imgur.com/jehkB.png" alt="http://i.imgur.com/yLPtqYF.png"> </p> <hr> <p><strong>entrance_green</strong><br> <img src="https://i.stack.imgur.com/CgYnh.png" alt="http://i.imgur.com/YoxBjxL.png"> </p> <hr> <p><strong>entrance_red</strong><br> <img src="https://i.stack.imgur.com/lHbKP.png" alt="http://i.imgur.com/LQ07PgU.png"> </p> <hr> <p><strong>top_blue</strong><br> <img src="https://i.stack.imgur.com/wkRaA.png" alt="http://i.imgur.com/2ZmjBYe.png"> </p> <hr> <p><strong>top_green</strong><br> <img src="https://i.stack.imgur.com/lHk5X.png" alt="http://i.imgur.com/kImYjxF.png"> </p> <hr> <p><strong>top_red</strong><br> <img src="https://i.stack.imgur.com/LT6Nn.png" alt="http://i.imgur.com/wgtFL6h.png"> </p> <hr> <p><strong>top_red_octo</strong> <img src="https://i.stack.imgur.com/FjF7S.png" alt="enter image description here"></p> <hr> <p><strong>top_blue_octo</strong> <img src="https://i.stack.imgur.com/0FWGv.png" alt="enter image description here"></p> <hr> <p><strong>top_green_octo</strong> <img src="https://i.stack.imgur.com/92kyY.png" alt="enter image description here"></p> <hr> <p>Here is a basic form that could use the images...</p> <p><a href="http://jsfiddle.net/Pha4V/" rel="nofollow noreferrer">http://jsfiddle.net/Pha4V/</a></p> <pre><code>&lt;form id="form-ChannelType"&gt; &lt;p&gt; Select a bottom (just 1 in the demo)&lt;br&gt; &lt;select name="bottom" class="form-control" id="bottom" size="1"&gt; &lt;option value="bottom1"&gt;Bottom 1&lt;/option&gt; &lt;/select&gt; &lt;/p&gt; &lt;p&gt; Select a Front (just 1 in the demo)&lt;br&gt; &lt;select name="front" class="form-control" id="front-1" size="1"&gt; &lt;option value="front1"&gt;Front 1&lt;/option&gt; &lt;/select&gt; &lt;/p&gt; &lt;p&gt; Select a Top&lt;br&gt; &lt;select name="bottom" class="form-control" id="bottom" size="2"&gt; &lt;option value="bottom_triangle"&gt;Triangle Shaped Top&lt;/option&gt; &lt;option value="bottom_octo"&gt;Octo. Shaped Top&lt;/option&gt; &lt;/select&gt; &lt;/p&gt; &lt;p&gt; Select a Color&lt;br&gt; &lt;select name="color" class="form-control" id="color" size="3"&gt; &lt;option value="blue"&gt;Blue&lt;/option&gt; &lt;option value="green"&gt;Green&lt;/option&gt; &lt;option value="red"&gt;Red&lt;/option&gt; &lt;/select&gt; &lt;/p&gt; &lt;/form&gt; </code></pre> <hr> <p>Can anyone help me in the logic of how to make such a form work? I need to make it work in a way that can easily scale to hundreds of options and images.</p> <p>With the basic form above, it would need to build a preview image by stacking appropriate images based on the form selections. I don't expect anyone to do all the work for this unless they are simply up for the challenge but I would appreciate any help or ideas on how to best make this work?</p> <hr> <p><strong>NOTE:</strong> My final project that will be based off of this will be much different. It will be used for a custom sign generator. I cannot use ImageMagick or GD libraries to do on the fly images, so each image has to be built and each layer changed. Instead of abuilding a simple house structure I will have options such as...</p> <ul> <li><strong>Sign Type</strong> which will determine a lot of the setting that are shown or hidden after it based on the type of sign selected.</li> <li><strong>Font</strong> the base image will have one for each font and in each font will be in each color as well. So 10 fonts x 15 colors = could easily be over 150 possible images to show just as the BASE image</li> <li><strong>Colors</strong> There will be from 2-4 different color options that will change the color for different parts of the sign. So all the image combinations listed above x the different color areas = lots of images</li> </ul> <p>So you can see this will be a pretty big beast when it's all done and I could use any help in getting a good start on it. I don't think a HUGE if/else or switch statement is the best way to go with something like this that can have hundreds of image combinations but I could be wrong?</p>
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      1. POHow to build a Preview image by stacking transparent images based on Form selections using JavaScript?
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    1. COYou may goto this Jsfiddle. This is very helpful to you. http://jsfiddle.net/Pha4V/3/
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      1. POHow to build a Preview image by stacking transparent images based on Form selections using JavaScript?
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    2. CO@jasondavis , What browsers do you need to support?
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    3. CO@Eric I am hoping to support the usual Chrome and Firefox as well as IE 9 or 10+
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      1. POHow to build a Preview image by stacking transparent images based on Form selections using JavaScript?
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