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186 comments found.

Just bought PhotoMosaic, great work!

It’s clean and easy to implement!

Do you know the best way to change the columns based on screen size without auto? I would like to keep three columns for mobile dimensions. However, I would like 6 columns for desktop dimensions.


Just in case anybody else needs this solution, the following is what I used.

var col = 5;

$(window).on("resize", function() {
    if ($(this).width() >= 1200) {
        col = 6;
    if ($(this).width() < 1200) {
        col = 5;
    if ($(this).width() < 1000) {
        col = 4;
    if ($(this).width() < 800) {
        col = 3;
    if ($(this).width() < 600) {
        col = 2;
    $('#target').photoMosaic({input: 'html', columns:col,});
    $('#target').photoMosaic({input: 'html', columns:col,});

Here’s another good resource on loading gallery images from folder with php script. It can be easily integrated with photomosaic dynamic jquery php image gallery from folder


Hi, I have just purchased photomosaic for html and I would like to set the minimum width of an image, like you can do in your WordPress plugin.

Basically I would like 2 columns but turning into one column on a smaller screen (responsive). The images would be around 650 pixels wide in each column.

My parameters are:

<script type=”text/javascript”> $(document).ready(function(){ </script>

        // input examples
        //    input: 'json',
        //    gallery: PMalbum, // var PMalbum is defined in data/
// input: 'xml',
        // gallery: 'data/',
input: 'html',
     padding: 10,
     order: "masonry",
// lightbox settings
    modal_name : 'prettyPhoto',
    modal_ready_callback: function($pm) {
        $('a[rel^="prettyPhoto"]', $pm).prettyPhoto({
            overlay_gallery: false,
            slideshow: false,
            theme: "pp_default",
            deeplinking: false,
            social_tools: "",
            show_title: false

You can use the following function as a replacement for the method built-in to your copy of PhotoMosaic. All you need to do is put it in a <script> tag after your PhotoMosaic JS include <script> but before your $(document).ready(...) call.

For example…
<script src="../path/to/photomosaic.js/"></script>
<script>makeColumnBuckets = function(){...}</script>

The first four variables in the function are the only things you should need to touch.

max_columns guarantees that you’ll never have more than 2 columns.

min_columns guarantees that you’ll never have less than 1 column.

min_column_width is used to determine when a column can be added or when a column needs to be removed. You said you wanted this to be 625… that means that PhotoMosaic won’t add a second column until the mosaic is wide enough so both columns can be 625px wide (meaning the smallest mosaic that would be 2 columns would be 1250px wide).

mobile_cutoff guarantees that the mosaic will only be 1 column wide when the total width of the mosaic is this wide.

Given that you want your desired min_column_width means your mosaics will drop down to one column at 1249px… mobile_cutoff probably won’t matter to you.

PhotoMosaic.Layouts.Common.makeColumnBuckets = function (opts) {
    var max_columns = 2;
    var min_columns = 1;
    var min_column_width = 625;
    var mobile_cutoff = 425;

    var columns = [];
    var num_cols = 0;
    var max_width = 0;
    var num_images = 0;
    var i = 0;

    if (opts.columns && opts.columns !== 'auto') {
        num_images =;
        num_cols = (num_images < opts.columns) ? num_images : opts.columns;
    } else {
        max_width = opts.width;
        num_images =;
        num_cols = (max_width < mobile_cutoff) ? 1 : Math.floor(max_width / min_column_width);

        if (num_images < num_cols) {
            num_cols = num_images;

        if ((max_columns !== 'auto') && (num_cols > max_columns)) {
            num_cols = max_columns;

        if ((min_columns !== 'auto') && (num_cols < min_columns)) {
            num_cols = min_columns;

    for (i = 0; i < num_cols; i++) {
        columns.push( [] );

    return columns;

Good luck!

Thank you very much, it works a treat


Can I populate a masonry grid with one photo each from either 1) all posts or 2) a category of posts?

3) How about from custom posts types, such as Portfolio Posts?

4) Are there hover effects? In particular, I want to display the title of the post over the block upon hover.

Thanks, Mike

You posted on the JS-only version of PhotoMosaic. You’re asking questions about the WordPress version.

To answer your questions:
  1. yes
  2. yes
  3. yes
  4. yes – here’s an FAQ that explains how

Hello, I’ve just purchased the Photomosaic Plugin, very nice work! I have one Problem: if I have a small screen (or little sized browser) then the images will overlap on the right side and I will get vertical scroll. If I manually resize the screen (my browser) the Issue is resolved. If I hit the reload button, the images will again overlap the previous divs on the right side. I have this issue only when I use a small browser or small screen size (1 or 2 colums in photomosaic). Here you can see my site (in progress): Thank you for your help! Best Regards, Chris

my Purchase Code: f9a3af37-064f-40e5-85d1-42e57e169144

Hi, it’s me again :) Is it possible to get a “mouseOver” Text when I hover over the Image?