there are many pictures in the article. Click on a picture and enlarge it. There are many plug-ins of this kind, but it is not supported that fingers can be zoomed out and enlarged.
is there anything that can be viewed and zoomed in or out?
all you can find now are those that can only be clicked to preview the picture.
Cropper.js is mainly aimed at mobile
here are some of the api I have sorted out
const cropper = new Cropper(image, {
aspectRatio: 1, //
viewMode: 0, // 2 0
// preview : $(".newImg"), // :String(jQuery)''
crop: function(event) { //
console.log(event.detail.x);
console.log(event.detail.y);
console.log(event.detail.width);
console.log(event.detail.height);
cropper.getCroppedCanvas();
cropper.getCroppedCanvas({ //
width: 300,
height: 300,
minWidth: 256,
minHeight: 256,
maxWidth: 4096,
maxHeight: 4096,
fillColor: '-sharpfff',
imageSmoothingEnabled: false,
imageSmoothingQuality: 'high',
});
if (!HTMLCanvasElement.prototype.toBlob) { // toBlob
Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
value: function (callback, type, quality) {
var binStr = atob( this.toDataURL(type, quality).split(',')[1] ),
len = binStr.length,
arr = new Uint8Array(len);
for (var i=0; i<len; iPP ) {
arr[i] = binStr.charCodeAt(i);
}
callback( new Blob( [arr], {type: type || 'image/png'} ) );
}
});
}
$(".img").attr("src" , cropper.getCroppedCanvas().toDataURL('image/jpeg')); // base64
// cropper.getCroppedCanvas().toBlob((blob) => {
// });
},
build: function (e) { //
//
console.log(111111111)
},
built: function (e) { //
},
checkCrossOrigin: true, //crossOrigin classurlgetCroppedCanvas
minContainerWidth: 300,
minContainerHeight:300,
minCanvasWidth: 300,
minCanvasHeight: 300,
minCropBoxWidth : 300, // :
minCropBoxHeight: 300, // :
rotatable : false , //
guides:false, // true
center: false, // true +
background : false,//
dragMode: "move", // crop 'none': do nothing 'crop': create a new crop box
modal : false, // true
cropBoxMovable :false, //
cropBoxResizable :false, //
toggleDragModeOnDblclick: false, //"" ""
});
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