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cropjs

v1.1.0

Published

Image soft cropper for predefined crop definitions featuring automatic crop suggestions. Created by Infomaker Scandinavia AB

Downloads

57

Readme

#CropJS

##About CropJS CropJS is a lightweight soft crop tool for to integration into other projects. It uses TrackingJS to enable automatic feature and face detection based cropping for a preset number of predefined crop dimensions.

##Usage

###Installation

npm install cropjs

###Define a placeholder for the crop dialog

<div id="crop_impl"></div>

###Instantiate a new crop dialog

// Get div where cropjs is loaded
var div = document.getElementById('crop_impl');

// Get access to the editor object
if (typeof editor == 'undefined') {
    editor = new IMSoftcrop.Editor(
            'crop_impl',
            {
                autocrop: true,
                detectWorkerUrl: '/cropjs/js/imcrop.worker.detect.js',
                detectThreshold: 20,
                detectStepSize: 2.5,
                debug: false,
                debugElement: document.getElementById('imc_debug')
            }
    );

    // Add save handler
    editor.onSave(function (cropdata) {

    });

    // Add cancel handler
    editor.onCancel(function (cropdata) {

    });
}

###Add image and predefined crop dimensions

editor.addImage(
        image.src,
        function (addedImage) {
            this.addSoftcrop('1:1', true, 1, 1);
            this.addSoftcrop('16:9', false, 16, 9);
            this.addSoftcrop('3:2', false, 3, 2);

            this.addSoftcrop('fixed', false, 800, 400, 100, 20);
        }
);

##References Using tracking.js for feature and face detection.