我想知道如何使用導(dǎo)入的 svg 的寬度/高度來設(shè)置 Fabricjs 的畫布的寬度/高度這是一個(gè)例子：const svg_data = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="1500" height="800" viewBox="0 0 1500 800" xml:space="preserve"><desc>Created with Fabric.js 3.6.3</desc><defs></defs><rect x="0" y="0" width="100%" height="100%" fill="rgb(255, 255, 255)"></rect><g transform="matrix(1 0 0 1 50 50)" ><rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" /></g><g transform="matrix(1 0 0 1 50 50)" ><rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" /></g><g transform="matrix(1 0 0 1 50 50)" ><rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" /></g><g transform="matrix(1 0 0 1 50 50)" ><rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" /></g><g transform="matrix(1 0 0 1 525.5 25.5)" ><rect style="stroke: rgb(0,0,0); stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,91,109); fill-rule: nonzero; opacity: 1;" x="-475" y="-25" rx="0" ry="0" width="950" height="50" /></g>
1 回答
小唯快跑啊
TA貢獻(xiàn)1863條經(jīng)驗(yàn) 獲得超2個(gè)贊
只需使用選項(xiàng)中獲得的寬度/高度：
this.fabric.loadSVGFromString(svg_data, (objects, options) => {
...
canvas.setHeight(options.height);
canvas.setWidth(options.width);
...
});
const svg_data = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="1500" height="800" viewBox="0 0 1500 800" xml:space="preserve">
<desc>Created with Fabric.js 3.6.3</desc>
<defs>
</defs>
<rect x="0" y="0" width="100%" height="100%" fill="rgb(255, 255, 255)"></rect>
<g transform="matrix(1 0 0 1 50 50)" >
<rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" />
</g>
<g transform="matrix(1 0 0 1 50 50)" >
<rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" />
</g>
<g transform="matrix(1 0 0 1 50 50)" >
<rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" />
</g>
<g transform="matrix(1 0 0 1 50 50)" >
<rect style="stroke: none; stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,255,255); fill-rule: nonzero; opacity: 1;" x="-50" y="-50" rx="0" ry="0" width="100" height="100" />
</g>
<g transform="matrix(1 0 0 1 525.5 25.5)" >
<rect style="stroke: rgb(0,0,0); stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,91,109); fill-rule: nonzero; opacity: 1;" x="-475" y="-25" rx="0" ry="0" width="950" height="50" />
</g>
<g transform="matrix(1 0 0 1 25.5 75.5)" >
<rect style="stroke: rgb(0,0,0); stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,91,109); fill-rule: nonzero; opacity: 1;" x="-25" y="-75" rx="0" ry="0" width="50" height="150" />
</g>
<g transform="matrix(1 0 0 1 1425.5 175.5)" >
<rect style="stroke: rgb(0,0,0); stroke-width: 1; stroke-dasharray: none; stroke-linecap: butt; stroke-dashoffset: 0; stroke-linejoin: miter; stroke-miterlimit: 4; fill: rgb(255,91,109); fill-rule: nonzero; opacity: 1;" x="-25" y="-75" rx="0" ry="0" width="50" height="150" />
</g>
</svg>`
const canvas = new fabric.Canvas("canvas");
this.fabric.loadSVGFromString(svg_data, (objects, options) => {
canvas.setHeight(options.height);
canvas.setWidth(options.width);
canvas.add.apply(canvas, objects);
canvas.renderAll();
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/3.6.2/fabric.min.js"></script>
<div>
<canvas id="canvas" style="border: 3px solid black;"></canvas>
</div>
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