{"id":39017,"date":"2023-08-20T01:17:43","date_gmt":"2023-01-16T12:01:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%9a%82%e6%97%b6%e8%af%95%e7%9d%80%e7%94%a8angular2%e7%bb%98%e5%88%b6svg%e3%80%82\/"},"modified":"2024-04-30T19:17:42","modified_gmt":"2024-04-30T11:17:42","slug":"%e6%9a%82%e6%97%b6%e8%af%95%e7%9d%80%e7%94%a8angular2%e7%bb%98%e5%88%b6svg%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%9a%82%e6%97%b6%e8%af%95%e7%9d%80%e7%94%a8angular2%e7%bb%98%e5%88%b6svg%e3%80%82\/","title":{"rendered":"\u6682\u65f6\u8bd5\u7740\u7528Angular2\u7ed8\u5236SVG"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u6211\u4e00\u76f4\u4ee5\u6765\u90fd\u5728\u4f7f\u7528SVG\u8fdb\u884c\u6570\u636e\u53ef\u89c6\u5316\u5de5\u4f5c\u3002
\n\u57282013\u5e74\u5de6\u53f3\uff0c\u6211\u5f00\u59cb\u4f7f\u7528D3.js\u6784\u5efaSVG\u5143\u7d20\uff0c\u4f46\u8003\u8651\u5230\u6027\u80fd\u3001\u7f16\u5199\u7b80\u6613\u5ea6\u548c\u53ef\u7ef4\u62a4\u6027\u7b49\u65b9\u9762\u7684\u5e73\u8861\uff0c\u6211\u6700\u8fd1\u5f00\u59cb\u5c06\u5e93\u8fc1\u79fb\u5230AngularJS\u548cReact\u4e0a\u3002
\nAngularJS\u662f\u6211\u559c\u6b22\u7684\u5e93\uff0c\u4f46\u5728\u7528\u4e8e\u6570\u636e\u53ef\u89c6\u5316\u65b9\u9762\uff0c\u6211\u5bf9\u6027\u80fd\u6709\u4e9b\u62c5\u5fe7\u3002
\n\u56e0\u4e3a\u542c\u8bf4Angular2\u6b63\u5728\u4e3a\u53d1\u5e03\u505a\u51c6\u5907\uff0c\u6211\u51b3\u5b9a\u5c1d\u8bd5\u4f7f\u7528\u6027\u80fd\u6539\u5584\u7684Angular2\u6765\u7ed8\u5236SVG\u3002<\/p>\n

\u6211\u5011\u5c07\u5728 Angular1 \u548c Angular2 \u4e2d\u5be6\u73fe\u76f8\u540c\u7684\u529f\u80fd\u4e26\u9032\u884c\u6bd4\u8f03\u3002
\n\u5169\u8005\u90fd\u662f\u4f7f\u7528 TypeScript \u9032\u884c\u5be6\u73fe\u3002
\n\u6211\u5011\u5c07\u4f7f\u7528 Angular1 \u7684\u7248\u672c 1.4.8 \u548c Angular2 \u7684\u7248\u672c 2.0.0-alpha.53\u3002<\/p>\n

\u4f7f\u7528Angular1\u6765\u5b9e\u73b0<\/h1>\n

\u9996\u5148\u6765\u8bf4\u5e38\u89c4\u7684\u4e00\u4e9b\u4e8b\u60c5\u3002<\/p>\n

const<\/span> app<\/span> =<\/span> angular<\/span>.<\/span>module<\/span>(<\/span>'<\/span>app<\/span>'<\/span>,<\/span> []);<\/span>\r\n<\/code><\/pre>\n
\u6211\u5011\u5c07\u9032\u5165\u672c\u9ad4\u7684\u5be6\u73fe\uff0c\u70ba\u4e86\u5be6\u73fe\u985e\u4f3c\u65bc\u57fa\u65bc\u7d44\u4ef6\u7684Angular2\u7684\u5be6\u73fe\uff0c\u6211\u5011\u4e5f\u6703\u5728Angular1\u4e2d\u4f7f\u7528\u6307\u4ee4\u3002\u672c\u6b21\u6211\u5011\u5c07\u69cb\u5efa\u7531\u5169\u500b\u7368\u7acb\u7d44\u4ef6Component1\u548cComponent2\u7d44\u6210\u7684\u7d50\u69cb\u3002<\/p>\n
\u9996\u5148\u662fComponent1\u7684\u5b9e\u73b0\u3002<\/p>\n
const<\/span> component1Template<\/span> =<\/span> `\r\n<div>\r\n  <h2>Component 1<\/h2>\r\n  <p>{{message}}<\/p>\r\n  <input ng-model=\"c1.message\"\/>\r\n<\/div>\r\n`<\/span>;<\/span>\r\n\r\nclass<\/span> Component1<\/span> {<\/span>\r\n  message<\/span> =<\/span> '<\/span>hello<\/span>'<\/span>;<\/span>\r\n}<\/span>\r\n\r\napp<\/span>.<\/span>directive<\/span>(<\/span>'<\/span>component1<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> ({<\/span>\r\n  template<\/span>:<\/span> component1Template<\/span>,<\/span>\r\n  controllerAs<\/span>:<\/span> '<\/span>c1<\/span>'<\/span>,<\/span>\r\n  controller<\/span>:<\/span> Component1<\/span>\r\n}));<\/span>\r\n<\/code><\/pre>\n
\u6211\u6b63\u5728\u4f7f\u7528ng-model\u8fdb\u884c\u53cc\u5411\u7ed1\u5b9a\u7684\u4fe1\u606f\u3002<\/p>\n
\u4e0b\u4e00\u6b65\u662fComponent2\u7684\u5b9e\u73b0\u3002<\/p>\n
class<\/span> Point<\/span> {<\/span>\r\n  x<\/span>:<\/span> number<\/span>;<\/span>\r\n  y<\/span>:<\/span> number<\/span>;<\/span>\r\n}<\/span>\r\n\r\nconst<\/span> component2Template<\/span> =<\/span> `\r\n<div>\r\n  <h2>Component 2<\/h2>\r\n  <div>\r\n    <input type=\"number\" min=\"1\" max=\"10\" step=\"1\" ng-model=\"c2.r\"\/>\r\n  <\/div>\r\n  <div>\r\n    <svg ng-attr-width=\"{{c2.size}}\" ng-attr-height=\"{{c2.size}}\">\r\n      <circle ng-attr-r=\"{{c2.r}}\" ng-attr-cx=\"{{c2.cx(point)}}\" ng-attr-cy=\"{{c2.cy(point)}}\" ng-repeat=\"point in c2.points\"\/>\r\n    <\/svg>\r\n  <\/div>\r\n<\/div>\r\n`<\/span>;<\/span>\r\n\r\nclass<\/span> Component2<\/span> {<\/span>\r\n  r<\/span> =<\/span> 5<\/span>;<\/span>\r\n  size<\/span> =<\/span> 500<\/span>;<\/span>\r\n  points<\/span>:<\/span> Point<\/span>[]<\/span> =<\/span> [];<\/span>\r\n\r\n  constructor<\/span>()<\/span> {<\/span>\r\n    var<\/span> n<\/span> =<\/span> 10<\/span>;<\/span>\r\n    for<\/span> (<\/span>var<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> n<\/span>;<\/span> ++<\/span>i<\/span>)<\/span> {<\/span>\r\n      this<\/span>.<\/span>points<\/span>.<\/span>push<\/span>({<\/span>\r\n        x<\/span>:<\/span> Math<\/span>.<\/span>random<\/span>()<\/span> *<\/span> this<\/span>.<\/span>size<\/span>,<\/span>\r\n        y<\/span>:<\/span> Math<\/span>.<\/span>random<\/span>()<\/span> *<\/span> this<\/span>.<\/span>size<\/span>\r\n      });<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n\r\n  cx<\/span>(<\/span>point<\/span>:<\/span> Point<\/span>)<\/span> :<\/span> number<\/span> {<\/span>\r\n    return<\/span> point<\/span>.<\/span>x<\/span>;<\/span> \/\/ \u4f55\u304b\u3059\u3054\u3044\u8a08\u7b97\u3092\u3059\u308b<\/span>\r\n  }<\/span>\r\n\r\n  cy<\/span>(<\/span>point<\/span>:<\/span> Point<\/span>)<\/span> :<\/span> number<\/span> {<\/span>\r\n    return<\/span> point<\/span>.<\/span>y<\/span>;<\/span> \/\/ \u4f55\u304b\u3059\u3054\u3044\u8a08\u7b97\u3092\u3059\u308b<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n\r\napp<\/span>.<\/span>directive<\/span>(<\/span>'<\/span>component2<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> ({<\/span>\r\n  template<\/span>:<\/span> component2Template<\/span>,<\/span>\r\n  controllerAs<\/span>:<\/span> '<\/span>c2<\/span>'<\/span>,<\/span>\r\n  controller<\/span>:<\/span> Component2<\/span>\r\n}));<\/span>\r\n<\/code><\/pre>\n
\u6b63\u5728\u5c0610\u4e2a\u5706\u7ed8\u5236\u5230SVG\u4e0a\u3002
\n\u5728\u6784\u9020\u51fd\u6570\u4e2d\u968f\u673a\u751f\u6210\u5706\u7684\u5750\u6807\uff0c\u5e76\u5c06\u5176\u7ed1\u5b9a\u5230circle\u5143\u7d20\u7684cx\u548ccy\u4e0a\u3002
\ncx\u548ccy\u901a\u8fc7Controller\u7684\u65b9\u6cd5\u8fdb\u884c\u5750\u6807\u8f6c\u6362\u5904\u7406\u3002
\n\u4e3a\u4e86\u7b80\u5316\u8bf4\u660e\uff0c\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\u76f4\u63a5\u8fd4\u56de\u4e86\u521d\u59cb\u5750\u6807\u3002
\n\u8bf7\u6ce8\u610f\uff0c\u65b9\u6cd5\u4e2d\u53ef\u80fd\u4f1a\u8fdb\u884c\u590d\u6742\u7684\u8ba1\u7b97\u3002
\n\u53e6\u5916\uff0c\u7528\u4e8e\u8868\u793a\u5706\u7684\u534a\u5f84r\u53ef\u4ee5\u901a\u8fc7input\u5143\u7d20\u8fdb\u884c\u66f4\u6539\u3002<\/p>\n
\u4e0b\u4e00\u4e2a\u662f\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\uff0c\u5b83\u662fComponent1\u548cComponent2\u7684\u7236\u7ec4\u4ef6\u3002<\/p>\n
const<\/span> appTemplate<\/span> =<\/span> `\r\n<div>\r\n  <component1><\/component1>\r\n  <component2><\/component2>\r\n<\/div>\r\n`<\/span>;<\/span>\r\n\r\nclass<\/span> App<\/span> {<\/span>\r\n}<\/span>\r\n\r\napp<\/span>.<\/span>directive<\/span>(<\/span>'<\/span>myApp<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> ({<\/span>\r\n  template<\/span>:<\/span> appTemplate<\/span>,<\/span>\r\n  controllerAs<\/span>:<\/span> '<\/span>app<\/span>'<\/span>,<\/span>\r\n  controller<\/span>:<\/span> App<\/span>\r\n}));<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528Angular2\u8fdb\u884c\u5b9e\u73b0\u3002<\/h1>\n
\u6211\u4eec\u5c06\u5728Angular 2\u4e2d\u5b9e\u73b0\u4e0eAngular 1\u7248\u76f8\u540c\u7684\u529f\u80fd\u3002\u9996\u5148\u662f\u6a21\u5757\u7684\u5bfc\u5165\u3002<\/p>\n
import<\/span> {<\/span>Component<\/span>,<\/span> Input<\/span>,<\/span> ChangeDetectionStrategy<\/span>}<\/span> from<\/span> '<\/span>angular2\/core<\/span>'<\/span>\r\nimport<\/span> {<\/span>CORE_DIRECTIVES<\/span>}<\/span> from<\/span> '<\/span>angular2\/common<\/span>'<\/span>\r\nimport<\/span> {<\/span>bootstrap<\/span>}<\/span> from<\/span> '<\/span>angular2\/platform\/browser<\/span>'<\/span>\r\n<\/code><\/pre>\n
\u4ecealpha.53\u5f00\u59cb\uff0cangular2\u4e0d\u518d\u652f\u6301\u4eceangular2\/angular2\u8fdb\u884c\u5bfc\u5165\uff0c\u800c\u662f\u6539\u4e3a\u4eceangular2\/core\u3001angular2\/common\u7b49\u5355\u72ec\u8fdb\u884c\u5bfc\u5165\u3002\u53ef\u4ee5\u67e5\u770bhttps:\/\/angular.io\/docs\/ts\/latest\/api\/\u7b49\u7f51\u5740\u6765\u4e86\u89e3\u6bcf\u4e2a\u6a21\u5757\u7684\u5177\u4f53\u4f4d\u7f6e\u3002<\/p>\n
Component1\u7684\u5b9e\u73b0\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
const<\/span> component1Template<\/span> =<\/span> `\r\n<div>\r\n  <h2>Component 1<\/h2>\r\n  <p>{{message}}<\/p>\r\n  <input [(ngModel)]=\"message\"\/>\r\n<\/div>\r\n`<\/span>;<\/span>\r\n\r\n@<\/span>Component<\/span>({<\/span>\r\n  selector<\/span>:<\/span> '<\/span>component1<\/span>'<\/span>,<\/span>\r\n  template<\/span>:<\/span> component1Template<\/span>\r\n})<\/span>\r\nclass<\/span> Component1<\/span> {<\/span>\r\n  message<\/span> =<\/span> '<\/span>hello<\/span>'<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u6211\u5011\u4f7f\u7528 [(ngModel)]=”message” \u4f86\u5be6\u73fe\u96d9\u5411\u6578\u64da\u7d81\u5b9a\u3002<\/p>\n
Component2\u7684\u5b9e\u73b0\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
class<\/span> Point<\/span> {<\/span>\r\n  x<\/span>:<\/span> number<\/span>;<\/span>\r\n  y<\/span>:<\/span> number<\/span>;<\/span>\r\n}<\/span>\r\n\r\nconst<\/span> component2Template<\/span> =<\/span> `\r\n<div>\r\n  <h2>Component 2<\/h2>\r\n  <div>\r\n    <input type=\"number\" min=\"1\" max=\"10\" step=\"1\" [(ngModel)]=\"r\"\/>\r\n  <\/div>\r\n  <div>\r\n    <svg [attr.width]=\"size\" [attr.height]=\"size\">\r\n      <circle [attr.r]=\"r\" [attr.cx]=\"cx(point)\" [attr.cy]=\"cy(point)\" *ngFor=\"#point of points\"\/>\r\n    <\/svg>\r\n  <\/div>\r\n<\/div>\r\n`<\/span>;<\/span>\r\n\r\n@<\/span>Component<\/span>({<\/span>\r\n  changeDetection<\/span>:<\/span> ChangeDetectionStrategy<\/span>.<\/span>OnPush<\/span>,<\/span>\r\n  selector<\/span>:<\/span> '<\/span>component2<\/span>'<\/span>,<\/span>\r\n  template<\/span>:<\/span> component2Template<\/span>\r\n})<\/span>\r\nclass<\/span> Component2<\/span> {<\/span>\r\n  r<\/span> =<\/span> 5<\/span>;<\/span>\r\n  size<\/span> =<\/span> 500<\/span>;<\/span>\r\n  points<\/span>:<\/span> Point<\/span>[]<\/span> =<\/span> [];<\/span>\r\n\r\n  constructor<\/span>()<\/span> {<\/span>\r\n    var<\/span> n<\/span> =<\/span> 10<\/span>;<\/span>\r\n    for<\/span> (<\/span>var<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> n<\/span>;<\/span> ++<\/span>i<\/span>)<\/span> {<\/span>\r\n      this<\/span>.<\/span>points<\/span>.<\/span>push<\/span>({<\/span>\r\n        x<\/span>:<\/span> Math<\/span>.<\/span>random<\/span>()<\/span> *<\/span> this<\/span>.<\/span>size<\/span>,<\/span>\r\n        y<\/span>:<\/span> Math<\/span>.<\/span>random<\/span>()<\/span> *<\/span> this<\/span>.<\/span>size<\/span>\r\n      });<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n\r\n  cx<\/span>(<\/span>point<\/span>:<\/span> Point<\/span>)<\/span> :<\/span> number<\/span> {<\/span>\r\n    return<\/span> point<\/span>.<\/span>x<\/span>;<\/span> \/\/ \u4f55\u304b\u3059\u3054\u3044\u8a08\u7b97\u3092\u3059\u308b<\/span>\r\n  }<\/span>\r\n\r\n  cy<\/span>(<\/span>point<\/span>:<\/span> Point<\/span>)<\/span> :<\/span> number<\/span> {<\/span>\r\n    return<\/span> point<\/span>.<\/span>y<\/span>;<\/span> \/\/ \u4f55\u304b\u3059\u3054\u3044\u8a08\u7b97\u3092\u3059\u308b<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7[attr.r]=”r”\u5c06circle\u5143\u7d20\u7684\u5c5e\u6027\u8fdb\u884c\u6570\u636e\u7ed1\u5b9a\u3002\u5728Angular1\u4e2d\uff0cng-repeat=”point in c2.points”\u7b49\u540c\u4e8e*ngFor=”#point of points”\u3002<\/p>\n
\u53e6\u5916\uff0c\u5728@Component\u7684\u53c2\u6570\u4e2d\uff0c\u6211\u5199\u4e86changeDetection: ChangeDetectionStrategy.OnPush\u3002\u8fd9\u4f1a\u6539\u53d8Angular2\u7684\u53d8\u52a8\u68c0\u6d4b\u7b56\u7565\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u3002\u5173\u4e8e\u53d8\u52a8\u68c0\u6d4b\u65b9\u9762\uff0c@laco0416\u5148\u751f\u5df2\u7ecf\u5199\u5f97\u975e\u5e38\u8be6\u7ec6\u4e86\u3002 http:\/\/qiita.com\/laco0416\/items\/78edd53f5da8ead02e75<\/p>\n
\u6700\u540e\uff0c\u8981\u8fdb\u884cApp\u7684\u5b9e\u73b0\u3002<\/p>\n
const appTemplate = `\r\n<div>\r\n  <component1><\/component1>\r\n  <component2><\/component2>\r\n<\/div>\r\n`;\r\n\r\n@Component({\r\n  selector: 'my-app',\r\n  template: appTemplate,\r\n  directives: [Component1, Component2, CORE_DIRECTIVES]\r\n})\r\nclass App {\r\n}\r\n\r\nbootstrap(App);\r\n<\/code><\/pre>\n
Angular1\u548cAngular2\u7684\u5dee\u5f02\u3002<\/h1>\n
\u8ba9\u6211\u4eec\u7b80\u5355\u6bd4\u8f83\u4e00\u4e0bAngular 1\u7248\u548cAngular 2\u7248\u7684\u5b9e\u73b0\u3002
\n\u5c3d\u7ba1\u6709\u610f\u8bc6\u5730\u4ee5Angular 2\u4e3a\u76ee\u6807\u5b9e\u73b0\u4e86Angular 1\u7248\uff0c\u4f46\u57fa\u672c\u4e0a\u53ef\u4ee5\u770b\u51fa\u5b83\u4eec\u80fd\u591f\u5b9e\u73b0\u76f8\u4f3c\u7684\u529f\u80fd\u3002<\/p>\n
\u5728Angular1\u4e2d\uff0c\u7528directive\u6765\u5b9e\u73b0Component\uff0c\u4f46\u662fdirective\u88ab\u8ba4\u4e3a\u5177\u6709\u9ad8\u5ea6\u7684\u901a\u7528\u6027\uff0c\u4f46API\u590d\u6742\u3002
\n\u6211\u8ba4\u4e3a\u5728Angular2\u4e2d\u901a\u8fc7\u4f7f\u7528@Component\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u3002
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\u5173\u4e8e\u5173\u952e\u6027\u80fd\u95ee\u9898\uff0c\u5982\u679c\u5728Component2\u7684cx\u65b9\u6cd5\u4e2d\u63d2\u5165console.log\u7b49\u529f\u80fd\uff0c\u4f60\u4f1a\u53d1\u73b0\u65e0\u8bba\u4f55\u65f6Component1\u7684message\u66f4\u65b0\uff0cAngular1\u90fd\u4f1a\u6bcf\u6b21\u8c03\u7528cx\u65b9\u6cd5\uff0c\u5373\u4f7fComponent2\u4e0eComponent1\u662f\u72ec\u7acb\u7684\u3002<\/p>\n
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