上传图片+浏览+裁切 Demo(无后台处理部分)

时间：2022-10-12 23:15:40
<!doctype html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

    <link rel="stylesheet" href="css/imgareaselect-default.css">

    <buttom class="btn upload">upload</buttom>

</head>

<body>

    <input type="file" name="" id="file-upload">

    <div class="img">

    </div>

</body>

<script src="js/jquery.min.js"></script>

<script src="js/jquery.imgareaselect.js"></script>

<script>

    window.URL = window.URL || window.webkitURL;

    $("body").on("change", "#file-upload", function() {

        var file = $("#file-upload").get(0).files[0];

        var img = new Image();

        img.src = window.URL.createObjectURL(file);

        img.onload = function(e) {

            window.URL.revokeObjectURL(this.src);

            load_select();

        }

        $(".img").append(img);

    });

    $("body").on("click", ".upload", function() {

        var jq = $(".img > img");

        var img = jq.attr("src");

        var xPos = jq.attr("data-xpos");

        var yPos = jq.attr("data-ypos");

        var width = jq.attr("data-width");

        var height = jq.attr("data-height");

        console.log("the range of pic is");

        console.log("x: %s, y: %s, w: %s, h: %s", xPos, yPos, width, height);

    });

    function load_select() {

        var jq = $(".img > img");

        jq.imgAreaSelect({

            selectionColor: "blue",

            aspectRatio: "4:3",

            selectionOpacity: 0.2,

            onSelectEnd: function(img, selection) {

                jq.attr("data-xpos", selection.x1);

                jq.attr("data-ypos", selection.y1);

                jq.attr("data-width", selection.width);

                jq.attr("data-height", selection.height);

            }

        });

    }

</script>

</html>

插件：http://odyniec.net/projects/imgareaselect/

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