CODEWITHSUNDEEP
javascriptjquerycoordinates
paul
paul

Reputation: 97

Get X/Y Coordinates with Mouseclick

I am trying to get X/Y coordinates from a div with a mouseclick.

I allready use this script:

Now I want to collect more X/Y coordinates, not just one. so if I click in the div twice or more times, I want to list the coordinates under the div.

<div>"click"
"click"</div>
------------------------
coordinates 1: X/Y
coordinates 2: X/Y
.
.
.

Does anyone know how I do that?

Upvotes: 1

Views: 3715

Answers (4)

Jonny Sooter
Jonny Sooter

Reputation: 2417

Here's exactly what you asked for.

Fiddle: http://jsfiddle.net/ZZEk8/118/

Add to HTML:

<span class="log"></span>

JS:

var clicks = [],
    updatedClicks = "";
$('.clickable').on('click', function (ev) { //We don't use .bind() after jQuery 1.7, use .on() now.
    var $div = $(ev.target);
    var $display = $div.find('.display');

    var offset = $div.offset();
    var x = ev.clientX - offset.left;
    var y = ev.clientY - offset.top;

    $display.text('x: ' + x + ', y: ' + y);
    clicks.push(x + "/" + y);

    updatedClicks += "coordinates" + " " + clicks.length + ":" + " " + clicks[clicks.length -1] + "<br />";

    $('.log').html(updatedClicks);
});

UPDATE: OP requested a way to limit the coords and delete one.

Fiddle: http://jsfiddle.net/ZZEk8/125/

var clicks = [],
    updatedClicks = [],
    limit = 5;

$('.clickable').on('click', function (ev) {
    var $div = $(ev.target);
    var $display = $div.find('.display');

    var offset = $div.offset();
    var x = ev.clientX - offset.left;
    var y = ev.clientY - offset.top;

    $display.text('x: ' + x + ', y: ' + y);

    //Stops adding at limit
    if (clicks.length < limit){
        addCoord(x,y);
    }
});

$('.delete').on('change', function(ev) {
    if(clicks.length){
        var selection = this.value -1;
        deleteCoord(selection);
    } else { //If there are no coords to delete run this
        return false;
    }
});

function addCoord (x,y){
    clicks.push(x + "/" + y);

    updatedClicks.push("Coordinates" + ":" + " " + clicks[clicks.length -1] + "<br />");

    $('.log').html(updatedClicks.join(" "));
}

function deleteCoord(selection) {
    clicks.splice(selection, 1);
    updatedClicks.splice(selection, 1);
    $('.log').html(updatedClicks.join(" "));
}

Upvotes: 2

Ihor Patychenko
Ihor Patychenko

Reputation: 196

If you want to save coordinates, you can collect them in an array, like this:

//Declare an array with 0 length
var arr = new Array(0);
$('.clickable').bind('click', function (ev) {
var $div = $(ev.target);
var $display = $div.find('.display');

var offset = $div.offset();
var x = ev.clientX - offset.left;
var y = ev.clientY - offset.top;

$display.text('x: ' + x + ', y: ' + y);
//increase the length of array before insert the value of coords
arr.length = arr.length+1;
//insert the value
arr[arr.length-1] = "coordinates" + arr.length + ":" + x +"/" + y;
});

Then, to operate coordinates you can tour your array with for-loop

Upvotes: 1

JoDev
JoDev

Reputation: 6873

I do it using div elements, but you can change it.
See fiddle

My JS change is 

 $display.append($('<div />').text('x: ' + x + ', y: ' + y));

And in HTML

<div class='clickable'>
    <div class='display'></div> 
</div>

Or this one, with a srollbar when needed.

Upvotes: 1

Knaģis
Knaģis

Reputation: 21495

Add a new element <div id="log"></div> after your existing element.

In your JavaScript code add

document.getElementById("log").innerHTML += "<br/>Coordinates: X=" + x + "; Y=" + y;

In your jsfiddle example:

$display.html($display.html() + '<br/> x: ' + x + ', y: ' + y);

Upvotes: 2

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