javascript - getBoundingClientRect() returning wrong width - Stack Overflow

admin管理员组

文章数量:1427287

I'm using Angular Material for my grid system. I'm trying to generate an SVG and it is supposed to show me the width of the element, however it is getBoundingClientRect() is returning 300px despite the width being 618px. I tried it again making my window smaller but it still showed up as 300px even though this time it was actually 100px..

This is my HTML:

<div layout="row" layout-wrap layout-padding>
    <div flex="33" ng-repeat="result in ctrl.results">
        <svg height="100%" width="100%" position>
          <rect x="0" y="0" width="100%" height="100%" fill="#da552f"></rect>
          <text fill="#ffffff" x="50%" y="50%" alignment-baseline="middle" text-anchor="middle" font-size="48" font-family="Verdana">Hello World</text>
        </svg>
    </div>
</div>

and this is my angularjs directive for the position attribute:

var app = angular.module('MainDirective', []);

app.directive('position', function () {
    return {
        restrict: 'A',
        link: function ($scope, element, attrs) {
            var rect = element[0].getBoundingClientRect();
            var text = element.children()[1].getBBox();
            console.log(rect)
        }
    };
});

There is no custom CSS in my project.

Any thoughts why this might be happening? I've tried so many different variations of getBoundingClientRect() but they all returned 300...

Edit: just as proof:

I'm using Angular Material for my grid system. I'm trying to generate an SVG and it is supposed to show me the width of the element, however it is getBoundingClientRect() is returning 300px despite the width being 618px. I tried it again making my window smaller but it still showed up as 300px even though this time it was actually 100px..

This is my HTML:

<div layout="row" layout-wrap layout-padding>
    <div flex="33" ng-repeat="result in ctrl.results">
        <svg height="100%" width="100%" position>
          <rect x="0" y="0" width="100%" height="100%" fill="#da552f"></rect>
          <text fill="#ffffff" x="50%" y="50%" alignment-baseline="middle" text-anchor="middle" font-size="48" font-family="Verdana">Hello World</text>
        </svg>
    </div>
</div>

and this is my angularjs directive for the position attribute:

var app = angular.module('MainDirective', []);

app.directive('position', function () {
    return {
        restrict: 'A',
        link: function ($scope, element, attrs) {
            var rect = element[0].getBoundingClientRect();
            var text = element.children()[1].getBBox();
            console.log(rect)
        }
    };
});

There is no custom CSS in my project.

Any thoughts why this might be happening? I've tried so many different variations of getBoundingClientRect() but they all returned 300...

Edit: just as proof:

• javascript
• html
• css
• angularjs
• svg

Share Improve this question Follow edited Dec 15, 2016 at 3:30 Katie asked Dec 15, 2016 at 3:12 KatieKatie 75111 gold badge1111 silver badges3030 bronze badges 8

• 1 Where do you check .width of .getBoundingClientRect() object? – guest271314 Commented Dec 15, 2016 at 3:25
• @guest271314 within the console.log(rect)... you could technically do console.log(rect.width) I suppose. – Katie Commented Dec 15, 2016 at 3:30
• Is element[0] div element? What does console.log(window.innerWidth) log at console? "is returning 300px despite the width being 618px" Which element width is set to 618px? "There is no custom CSS in my project" How is element width set to 618px? – guest271314 Commented Dec 15, 2016 at 3:35
• element[0] is the SVG and console.log(window.innerWidth)` returns 1920. When I check the Chrome dev tools and hover over the SVG it shows as 618px.. as does the inner rect – Katie Commented Dec 15, 2016 at 3:41
• The width of svg element is set to 100% at the element <svg height="100%" width="100%" position>, not 618px. console.log(document.querySelector("svg").width.animVal.valueAsString, window.getComputedStyle(document.body).width). – guest271314 Commented Dec 15, 2016 at 3:46

 |  Show 3 more ments

1 Answer 1

Sorted by: Reset to default 3

I figured out what my issue was.. I should've used angulars $scope.$watch as I was generating the svg on an event click.

var app = angular.module('MainDirective', []);

app.directive('position', function () {
    return {
        restrict: 'A',
        link: function ($scope, element, attrs) {
            var rect, image, text;
            $scope.$watch(element, function () {
                rect = element[0].clientWidth;
                image = element.children()[1].getBBox();
                text = element.children()[2].getBBox();
                console.log("Rect: "+rect+" image: "+image.width+" text: "+text.width)
            });
        }
    };
});

本文标签： javascriptgetBoundingClientRect() returning wrong widthStack Overflow