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bartonlewis

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  1. bartonlewis
    I found w3schools' tutorial for "Image Magnifier Glass" and want to use it on my website for multiple images. But I can only get it to work for one, presumably because it uses document.getElementById(imgID) in the js; I tried changing this to document.getElementsByClassName(names) but that didn't work. I'm not an experienced javascript user so don't know how to resolve, but assume something different needs to go where (names) is at the least. Can anyone help? The only thing I changed in the code is to add a little padding to the img-magnifier-container class. Thank you. <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <style> * {box-sizing: border-box;} .img-magnifier-container { position:relative; padding: 20px; } .img-magnifier-glass { position: absolute; border: 3px solid #000; border-radius: 50%; cursor: none; /*Set the size of the magnifier glass:*/ width: 100px; height: 100px; } </style> <script> function magnify(imgID, zoom) { var img, glass, w, h, bw; img = document.getElementById(imgID); /*create magnifier glass:*/ glass = document.createElement("DIV"); glass.setAttribute("class", "img-magnifier-glass"); /*insert magnifier glass:*/ img.parentElement.insertBefore(glass, img); /*set background properties for the magnifier glass:*/ glass.style.backgroundImage = "url('" + img.src + "')"; glass.style.backgroundRepeat = "no-repeat"; glass.style.backgroundSize = (img.width * zoom) + "px " + (img.height * zoom) + "px"; bw = 3; w = glass.offsetWidth / 2; h = glass.offsetHeight / 2; /*execute a function when someone moves the magnifier glass over the image:*/ glass.addEventListener("mousemove", moveMagnifier); img.addEventListener("mousemove", moveMagnifier); /*and also for touch screens:*/ glass.addEventListener("touchmove", moveMagnifier); img.addEventListener("touchmove", moveMagnifier); function moveMagnifier(e) { var pos, x, y; /*prevent any other actions that may occur when moving over the image*/ e.preventDefault(); /*get the cursor's x and y positions:*/ pos = getCursorPos(e); x = pos.x; y = pos.y; /*prevent the magnifier glass from being positioned outside the image:*/ if (x > img.width - (w / zoom)) {x = img.width - (w / zoom);} if (x < w / zoom) {x = w / zoom;} if (y > img.height - (h / zoom)) {y = img.height - (h / zoom);} if (y < h / zoom) {y = h / zoom;} /*set the position of the magnifier glass:*/ glass.style.left = (x - w) + "px"; glass.style.top = (y - h) + "px"; /*display what the magnifier glass "sees":*/ glass.style.backgroundPosition = "-" + ((x * zoom) - w + bw) + "px -" + ((y * zoom) - h + bw) + "px"; } function getCursorPos(e) { var a, x = 0, y = 0; e = e || window.event; /*get the x and y positions of the image:*/ a = img.getBoundingClientRect(); /*calculate the cursor's x and y coordinates, relative to the image:*/ x = e.pageX - a.left; y = e.pageY - a.top; /*consider any page scrolling:*/ x = x - window.pageXOffset; y = y - window.pageYOffset; return {x : x, y : y}; } } </script> </head> <body> <h1>Image Magnifier Glass</h1> <p>Mouse over the image:</p> <div class="img-magnifier-container"> <img id="myimage" src="http://bartonlewisfilm.com/img_157-229.jpg" width="33%" height="33%"> </div> <div class="img-magnifier-container"> <img id="myimage" src="http://bartonlewisfilm.com/img_287-145.jpg" width="33%" height="33%"> </div> <p>Feel free to change the strength of the magnifier glass when initiating the magnify function.</p> <script> /* Initiate Magnify Function with the id of the image, and the strength of the magnifier glass:*/ magnify("myimage", 3); </script> </body> </html>
  2. bartonlewis
    Thank you so much! I would have never caught this. I'm new to the forum - doesn't look like there is a way to mark a question as "answered" but let me know if otherwise.
  3. bartonlewis
    For some reason I cannot determine, there is a scroll bar at the bottom of my page which accesses a blank portion of the viewport on the right. I have a feeling there is something in the stylesheet of the code I am accessing for the slideshow that is responsible, but I don't know how to correct it. I have removed all extraneous code except for the slideshow. Can anybody help? Thank you. <!DOCTYPE html> <html> <head> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"> <script src="https://use.typekit.net/qkv6kzb.js"></script> <script>try{Typekit.load({ async: true });}catch(e){}</script> <script src="https://use.typekit.net/qkv6kzb.js"></script> <script>try{Typekit.load({ async: true });}catch(e){}</script> <meta charset="UTF-8"> <title>Barton's wall cuts</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <!--[if lt IE 9]> <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <style> * {box-sizing: border-box;} body { width: auto; margin: 0 auto 0; } .flex-container { display: -webkit-flex; display: -ms-flexbox; display: flex; margin: 0 50px 50px 50px; padding-bottom: 30px; align-items: center; justify-content: center; font-family: "europa",sans-serif; font-size: 105%; } .nav { margin: 0 30px; } a { text-decoration: none; color: black; } div.nav a { font-size: 1.8em; } .main { width: auto; display: flex; justify-content: space-between; align-items: center; margin-top: 100px; } .browse { width: 20%; margin: 0 5%; } p.indent1 { text-indent: 1em; line-height: 1.3em; font-family: "europa",sans-serif; font-size: 1.4em; color: black; display: block; margin: 0; } /* CSS FOR SLIDESHOW */ .mySlides {display: none;} img {vertical-align: middle;} /* Slideshow container */ .slideshow-container { display: flex; justify-content: center; width: ; } /* Caption text */ .text { color: #f2f2f2; font-size: 15px; padding: 8px 12px; position: absolute; bottom: 8px; width: 100%; text-align: center; } /* Number text (1/3 etc) */ .numbertext { color: #f2f2f2; font-size: 12px; padding: 8px 12px; position: absolute; top: 0; } /* The dots/bullets/indicators */ .dot { height: 15px; width: 15px; margin: 15px 2px; background-color: #bbb; border-radius: 50%; display: inline-block; transition: background-color 0.6s ease; } .active { background-color: #717171; } /* Fading animation */ .fade { -webkit-animation-name: fade; -webkit-animation-duration: 1.5s; animation-name: fade; animation-duration: 1.5s; } @-webkit-keyframes fade { from {opacity: .4} to {opacity: 1} } @keyframes fade { from {opacity: .4} to {opacity: 1} } /* On smaller screens, decrease text size */ @media only screen and (max-width: 300px) { .text {font-size: 11px} } /* END OF CSS FOR SLIDESHOW */ .indent { text-indent: -9999px; } .about { width: 66%; margin: 0 auto; margin-top: 5%; } .about p { padding: 15px; line-height: 1.3em; font-family: "europa",sans-serif; font-size: 1.75em; color: black; } .underline { text-decoration: underline; font-variant: small-caps; font-size: 1.1em; } a:hover { text-decoration: underline; } footer { background: #827e90; height: 75px; margin-top: 5%; } footer p { padding: 25px; font-family: "europa",sans-serif; font-size: 1.1em; letter-spacing: .8px; color: white; } .flex-container-footer { display: -webkit-flex; display: -ms-flexbox; display: flex; width: 100%; height: 100%; padding-top: 0px; justify-content: space-between; align-items: center; } .flex-container-footer>div { margin: 0px 50px; } .social a { color: white; } .fa { padding: 10px; font-size: ; width: ; text-align: center; text-decoration: none; border-radius: 50%; } .copyright p { font-family: "europa",sans-serif; color: black; font-size: 1.1em; letter-spacing: .8px; line-height: 135%; font-weight: 500; } </style> </head> <body> <div class="parallax"> <div> <h1>text</h1> </div> </div> <section class="main"> <div class="browse"> <h3>text</h3> <h4>text</h4> <p>text</p> <p>text</p> <p>text</p> </div> <div class="slideshow-container"> <div class="mySlides fade"> <div class="numbertext">1 / 3</div> <img src="http://bartonlewisfilm.com/img_287-163.jpg" style="max-width: 100%" alt="157-245, 96th St., IND Eighth Ave. Line" style="width:80%"> <div class="text"></div> </div> <div class="mySlides fade"> <div class="numbertext">2 / 3</div> <img src="http://bartonlewisfilm.com/img_162-373.jpg" style="max-width: 100%" alt="157-245, 96th St., IND Eighth Ave. Line" style="width:80%"> <div class="text"></div> </div> <div class="mySlides fade"> <div class="numbertext">3 / 3</div> <img src="http://bartonlewisfilm.com/img_coors_light.jpg" style="max-width: 100%" alt="157-245, 96th St., IND Eighth Ave. Line" style="width:80%"> <div class="text"></div> </div> </div> <div class="browse"> <p class="indent">Oversize</p> </div> </section> <div style="text-align:center"> <span class="dot"></span> <span class="dot"></span> <span class="dot"></span> </div> <div class="about"> <p>text text text</p> </div> <script> var slideIndex = 0; showSlides(); function showSlides() { var i; var slides = document.getElementsByClassName("mySlides"); var dots = document.getElementsByClassName("dot"); for (i = 0; i < slides.length; i++) { slides[i].style.display = "none"; } slideIndex++; if (slideIndex > slides.length) {slideIndex = 1} for (i = 0; i < dots.length; i++) { dots[i].className = dots[i].className.replace(" active", ""); } slides[slideIndex-1].style.display = "block"; dots[slideIndex-1].className += " active"; setTimeout(showSlides, 3000); // Change image every 3 seconds } </script> <footer> <div class="flex-container-footer"> <div> <p>copyright © 2018 by Barton Lewis</p> </div> <div class="social"> <a href="https://www.facebook.com/profile.php?id=1410465690" class="fa fa-facebook"></a> <a href="https://www.instagram.com/bartonlewis2328/" class="fa fa-instagram"></a> </div> </div> </footer> <script> </script> </body> </html>
  4. bartonlewis
    Are duplicate postings not allowed? I don't see that listed in guidelines/netiquette. I posted it here because I didn't get an answer to my last post on the css page, which was basically to ask someone to modify the code I had provided to show me what I needed to do. I am not sufficiently versed in javascript to do this, athough I attempted it. I thought perhaps the query was more suited to the JavaScript page, which is why I duplicated it here.
  5. bartonlewis
    I found code for opening thumbnails using modal images at w3schools here: https://www.w3schools.com/howto/howto_css_modal_images.asp This code works well for me except for one problem: while most of the images display well on screen defining a width of 60%, which enables the image to fill the screen top to bottom, some of the images are panoramas and this 60% width restriction creates very short images top to bottom. I would like a separate definition for the panoramas that enables them to fill 90% of the width of the screen. I am not an experienced javascript user so I don't know how to do this. Can anyone help? I have attached the file with html, css and js in it. Thank you. so.html
  6. bartonlewis
    Thanks. I changed the id's to classes and ran my code through the Validator, and now I'm just getting errors for not having section headings. I copied the line of code you supplied beginning with "var" into the script section of my code. I pasted it into 2 spots: both before and after the "for" statement. In the former case, it stopped the thumbnails from opening, in the latter it had no effect. I guess that there is additional code I need to supply but I don't know what it is. I have basically no experience with js. I don't know if it's customary here as in stackoverflow to write the code for someone as opposed to explaining what needs to be done but if it's possible to modify what I supplied above, I would appreciate it. I did try to find out more about the code you supplied by Googling it and got some hits about the Image natural Width Property but didn't understand it. Thank you for any direction you can provide.
  7. bartonlewis
    Thanks, but I am not an experienced user of javascript, and would need guidance on how to do this. I read the "posting tips" on how to post your code, and there are nothing but blank boxes under each tip. What's that all about? I clicked the contact button at the bottom of the page to ask but did not hear back. So I have gone ahead and posted my code here. If you are able to show me what exactly I need to do with regard to your instructions to "check height against width using JavaScript" and "use JavaScript to adjust modal to class of image" I would be very grateful. Thank you. <!DOCTYPE HTML> <html> <head> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"> <script src="https://use.typekit.net/qkv6kzb.js"></script> <script>try{Typekit.load({ async: true });}catch(e){}</script> <script src="https://use.typekit.net/qkv6kzb.js"></script> <script>try{Typekit.load({ async: true });}catch(e){}</script> <meta charset="UTF-8"> <title>Barton's website</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <!--[if lt IE 9]> <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <style> /* http://meyerweb.com/eric/tools/css/reset/ v2.0 | 20110126 License: none (public domain) */ html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video { margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline; } /* HTML5 display-role reset for older browsers */ article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section, paragraph { display: block; } body { line-height: 1; } ol, ul { list-style: none; } blockquote, q { quotes: none; } blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; } table { border-collapse: collapse; border-spacing: 0; } /*THIS IS THE END OF THE MYER RESET*/ .myImg { border-radius: 5px; cursor: pointer; transition: 0.3s; } #myImg:hover {opacity: 0.7;} /* The Modal (background) */ .modal { display: none; /* Hidden by default */ position: fixed; /* Stay in place */ z-index: 1; /* Sit on top */ padding-top: 100px; /* Location of the box */ left: 0; top: 0; width: 100%; /* Full width */ height: 100%; /* Full height */ overflow: auto; /* Enable scroll if needed */ background-color: rgb(0,0,0); /* Fallback color */ background-color: rgba(0,0,0,0.9); /* Black w/ opacity */ } /* Modal Content (image) */ .modal-content { margin: auto; display: block; height: 70%; } /* Caption of Modal Image */ #caption { margin: auto; display: block; font-family: "europa",sans-serif; font-size: 120%; width: 80%; max-width: 700px; text-align: center; color: #ccc; padding: 10px 0; height: 150px; } /* Add Animation */ .modal-content, #caption { -webkit-animation-name: zoom; -webkit-animation-duration: 0.6s; animation-name: zoom; animation-duration: 0.6s; } @-webkit-keyframes zoom { from {-webkit-transform:scale(0)} to {-webkit-transform:scale(1)} } @keyframes zoom { from {transform:scale(0)} to {transform:scale(1)} } /* The Close Button */ .close { position: absolute; top: 15px; right: 35px; color: #f1f1f1; font-size: 40px; font-weight: bold; transition: 0.3s; } .close:hover, .close:focus { color: #bbb; text-decoration: none; cursor: pointer; } /* 100% Image Width on Smaller Screens */ @media only screen and (max-width: 700px){ .modal-content { width: 100%; } } html { background-color: white; } body { width: auto; margin: 0 auto 0; } .gallery { width: auto; height: auto; display: flex; padding: 50px; justify-content: space-around; align-items: center; flex-wrap: wrap; } .photo { padding: 20px; } .photo img { padding: 30px; } .photobox { vertical-align: middle; } </style> </head> <body> <section class="gallery"> <div><img id="myImg" class="photobox" src="http://bartonlewisfilm.com/img_157-229_tb.jpg" alt="157-229, 96th St., IND Eighth Ave. Line" width="187" height="142" /></div> <!-- The Modal --> <div id="myModal" class="modal"> <span class="close">&times;</span> <img class="modal-content" id="img01"> <div id="caption"></div> </div> <div><img id="myImg" class="photobox" src="http://bartonlewisfilm.com/img_214-099_368.jpg" alt="214-069, 182nd – 183rd Sts., IND Concourse Line" width="519" height="142" /></div> <div><img id="myImg" class="photobox" src="http://bartonlewisfilm.com/img_214-015.jpg" alt="214-015, 182nd-183rd Sts., IND Concourse Line" width="199" height="142" /></div> </section> <script> // Get the modal var modal = document.getElementById('myModal'); // Get the image and insert it inside the modal - use its "alt" text as a caption var modal = document.getElementById('myModal'); var imageArray = document.getElementsByClassName("photobox"); for(var i=0;i<imageArray.length;i++){ var img = imageArray; var modalImg = document.getElementById("img01"); var captionText = document.getElementById("caption"); img.onclick = function(){ modal.style.display = "block"; modalImg.src = this.src; captionText.innerHTML = this.alt; } } // Get the <span> element that closes the modal var span = document.getElementsByClassName("close")[0]; // When the user clicks on <span> (x), close the modal span.onclick = function() { modal.style.display = "none"; }; </script> </body> </html>
  8. bartonlewis
    I found code for displaying thumbnails that open as full size images at w3schools here: https://www.w3schools.com/howto/howto_css_modal_images.asp This works really well but I have one problem: Some of the images are really wide panoramas. If I give a width of 60% for the modal content then the regular sized images display well on the screen, taking up the full vertical space, but the panoramas - while occupying the same horizontal space - are very short. And if I define the width as 90%, then while the panoramas fit beautifully on the screen, the regular size images do not fit vertically. I would like to have 2 different definitions for the 2 classes of images so both can optimally display - filling the screen top to bottom for the regular images and side to side for the panoramas. Is there any way to do this? Thanks.
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