fabricjs - loadFromJSON ne respectant pas la mise à l'échelle

Question

Donc, quand je charge mes données depuis JSON, la mise à l'échelle de X et Y n'est pas respectée, donc quand l'objet se charge, il conserve sa hauteur/largeur d'origine. Une raison pour cela et de toute façon pour contourner cela?

Le rectangle gauche doit être plus grand que le rectangle.

var canvas = new fabric.Canvas('c'); 
 

 
let json = {"objects":[{"type":"rect","originx":"left","originy":"top","left":323,"top":259,"width":50,"height":300,"fill":"#ff5b6d","stroke":null,"strokewidth":0,"strokedasharray":null,"strokelinecap":"butt","strokelinejoin":"miter","strokemiterlimit":10,"scalex":1.54,"scaley":1.54,"angle":0,"flipx":false,"flipy":false,"opacity":1,"shadow":null,"visible":true,"clipto":null,"backgroundcolor":"","fillrule":"nonzero","globalcompositeoperation":"source-over","transformmatrix":null,"skewx":0,"skewy":0,"rx":0,"ry":0},{"type":"rect","originx":"left","originy":"top","left":205,"top":198,"width":50,"height":300,"fill":"#ff5b6d","stroke":null,"strokewidth":1,"strokedasharray":null,"strokelinecap":"butt","strokelinejoin":"miter","strokemiterlimit":10,"scalex":1,"scaley":1,"angle":0,"flipx":false,"flipy":false,"opacity":1,"shadow":null,"visible":true,"clipto":null,"backgroundcolor":"","fillrule":"nonzero","globalcompositeoperation":"source-over","transformmatrix":null,"skewx":0,"skewy":0,"rx":0,"ry":0}]} 
 

 
canvas.loadFromJSON(json);

<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/1.7.18/fabric.min.js"></script> 
 
<canvas id="c" width="1000" height="1000"></canvas>

Answer 1

var canvas = new fabric.Canvas('c'); 
 

 
let json = {"objects":[{"type":"rect","originX":"left","originY":"top","left":323,"top":259,"width":50,"height":300,"fill":"#ff5b6d","stroke":null,"strokeWidth":0,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,"scaleX":1.54,"scaleY":1.54,"angle":0,"flipX":false,"flipY":false,"opacity":1,"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"rx":0,"ry":0},{"type":"rect","originX":"left","originY":"top","left":205,"top":198,"width":50,"height":300,"fill":"#ff5b6d","stroke":null,"strokeWidth":1,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,"scaleX":1,"scaleY":1,"angle":0,"flipX":false,"flipy":false,"opacity":1,"shadow":null,"visible":true,"clipto":null,"backgroundcolor":"","fillRule":"nonzero","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"rx":0,"ry":0}]} 
 

 
canvas.loadFromJSON(json);

<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/1.7.18/fabric.min.js"></script> 
 
<canvas id="c" width="1000" height="1000"></canvas>

fabricjs propriétés d'objets sont en cas de chameau. Si vous fournissez tous leur clé, tout fonctionnera bien. J'ai changé votre clef de données de json à l'affaire de chameau. Vous pouvez obtenir toutes les propriétés d'objet here.

Answer 2

On dirait que vous pouvez manipuler chaque objet comme il est en cours de construction ou quelque chose que.

var canvas = new fabric.Canvas('c'); 
 

 
let json = {"objects":[{"type":"rect","originx":"left","originy":"top","left":323,"top":259,"width":50,"height":300,"fill":"#ff5b6d","stroke":null,"strokewidth":0,"strokedasharray":null,"strokelinecap":"butt","strokelinejoin":"miter","strokemiterlimit":10,"scalex":1.54,"scaley":1.54,"angle":0,"flipx":false,"flipy":false,"opacity":1,"shadow":null,"visible":true,"clipto":null,"backgroundcolor":"","fillrule":"nonzero","globalcompositeoperation":"source-over","transformmatrix":null,"skewx":0,"skewy":0,"rx":0,"ry":0},{"type":"rect","originx":"left","originy":"top","left":205,"top":198,"width":50,"height":300,"fill":"#ff5b6d","stroke":null,"strokewidth":1,"strokedasharray":null,"strokelinecap":"butt","strokelinejoin":"miter","strokemiterlimit":10,"scalex":1,"scaley":1,"angle":0,"flipx":false,"flipy":false,"opacity":1,"shadow":null,"visible":true,"clipto":null,"backgroundcolor":"","fillrule":"nonzero","globalcompositeoperation":"source-over","transformmatrix":null,"skewx":0,"skewy":0,"rx":0,"ry":0}]} 
 

 
canvas.loadFromJSON(json, canvas.renderAll.bind(canvas), (o, object) => { 
 
        object.scale(o.scalex, o.scaley); 
 
        }); 
 
canvas.renderAll();

<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/1.7.18/fabric.min.js"></script> 
 
<canvas id="c" width="1000" height="1000"></canvas>