{"id":4225,"date":"2014-06-24T17:41:32","date_gmt":"2014-06-24T09:41:32","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=4225"},"modified":"2018-06-15T23:43:50","modified_gmt":"2018-06-15T15:43:50","slug":"svg-path-d-polyline-points-bezier-curves","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2014\/06\/svg-path-d-polyline-points-bezier-curves\/","title":{"rendered":"SVG+JS path\u7b49\u503c\u53d8\u5316\u5b9e\u73b0CSS3\u5174\u53f9\u7684\u56fe\u5f62\u52a8\u753b"},"content":{"rendered":"

by zhangxinxu<\/a> from http:\/\/www.zhangxinxu.com<\/a>
\n\u672c\u6587\u5730\u5740\uff1ahttp:\/\/www.zhangxinxu.com\/wordpress\/?p=4225<\/a><\/p>\n

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\n
circle.animate({ cx: 200 });<\/pre>\n<\/div>\n
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\u4f46\u662f\uff0c\u521a\u5f00\u59cb\uff0c\u6e29\u6c34\u7096\u9752\u86d9\uff0c\u86af\u8693\u9493\u86e4\u87c6\uff0c\u4e00\u4e0a\u6765\u5c31path<\/code>\u6307\u4ee4\u4f1a\u5413\u7740\u82b1\u82b1\u8349\u8349\u4ee5\u53ca\u8def\u8fc7\u7684\u5c0f\u670b\u53cb\u7684\uff0c\u56e0\u6b64\uff0c\u8fd9\u91cc\u4f7f\u7528polyline<\/code>\u591a\u8fb9\u5f62\u5143\u7d20\uff0c\u4f7f\u7528points<\/code>\u5c5e\u6027\u6807\u8bb0\u70b9\u3002\u4f8b\u5982\uff0c\u4e0a\u9762\u7684demo\u9ed8\u8ba4\u4e94\u8fb9\u5f62\u7684\u70b9\u4f4d\u7f6e\u662f\uff08\u663e\u793a\u5668\u5c3a\u5bf8\u4e0d\u4e00\u6837\uff0c\u503c\u4e5f\u4e0d\u4e00\u6837\uff0c\u56e0\u6b64\uff0c\u4ec5\u793a\u610f\uff09\uff1a<\/p>\n
\n
<polyline points='798,432<\/span>,1022,360<\/span>,1160,549<\/span>,1021,740<\/span>,798,667<\/span>' fill=\"rgba(255,255,255,0.85)\"><\/polyline><\/pre>\n<\/div>\n
\u4e0a\u9762\u989c\u8272\u9ad8\u4eae\u76845\u4e2a\u5750\u6807\u5c31\u662f\u4e94\u8fb9\u5f62\u76845\u4e2a\u9876\u70b9\u5750\u6807\u3002<\/p>\n
\u8981\u5b9e\u73b0Gif\u6240\u793a\u7684\u6548\u679c\uff0c\u539f\u7406\u5f88\u7b80\u5355\uff0c\u53ea\u8981\u8ba9\u7b2c3\u4e2a\u70b9\u6c34\u5e73\u4f4d\u79fb\u5c31\u597d\u4e86\u3002<\/p>\n
\u672c\u8d28\u4e0a\u5c31\u4e0e\u5927\u529b\u795e\u676f\u7684\u90a3\u4e2a\u5706\u5708\u4f4d\u79fb\u662f\u4e00\u6837\u7684\u3002\u53ea\u662f\uff0c\u5927\u529b\u795e\u676f\u72ec\u7acb\u53c2\u6570\uff0c\u8fd9\u91cc\u662f\u4f17\u591a\u53c2\u6570\u4e2d\u7684\u4e00\u4e2a\u3002<\/p>\n
\u8fd9\u91cc\uff0c\u6211\u4eec\u65e0\u6cd5\u76f4\u63a5\u5bf9\u6574\u4e2a\u5c5e\u6027\u5750\u6807\u505a\u8865\u95f4\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u539f\u751f\u7684\u5750\u6807\u52a8\u753b\u65b9\u6cd5\u3002<\/p>\n
Snap.svg.js<\/a>\u4e2d\u6709\u4e2a\u5168\u5c40\u7684animate()<\/code>\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4e2d\u6587\u6587\u6863\u6233\u8fd9\u91cc<\/a>\u3002<\/p>\n
\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
\n
Snap.animate(from, to, setter, duration, [easing], [callback]);<\/pre>\n<\/div>\n
\u4e0a\u9762\u4ecb\u7ecd\u7684Element.animate()<\/a>\u65b9\u6cd5\u5c31\u662f\u6839\u636e\u8fd9\u4e2a\u5e95\u5c42\u65b9\u6cd5\u6f14\u53d8\u800c\u6765\u3002\u5176\u5173\u7cfb\uff0c\u7c7b\u4f3c\u4e8ejQuery\u4e2d$.get()\/$.post()<\/code>\u548c$.ajax()<\/code>\u7684\u5173\u7cfb\u3002<\/p>\n
\u5982\u679c\u5957\u7528\u5927\u529b\u795e\u676f\u504f\u79fb200\u50cf\u7d20\u7684\u4f8b\u5b50\uff0c\u5219\u6709\uff1a<\/p>\n
\n
Snap.animate(0, 200, function (val) {\n   circle.attr({\n        cx: val\n   });\n}, 500);<\/pre>\n<\/div>\n
Snap.animate()<\/code>\u65b9\u6cd5\u5f3a\u5927\u4e4b\u5904\u5728\u4e8e\u8fd9\u4e2asetter<\/code>\u8fd9\u4e2a\u51fd\u6570\uff0c\u52a8\u753b\u5f15\u64ce\u7684\u6838\u5fc3\u5c31\u662f\u8ba1\u7b97\u7279\u5b9a\u65f6\u95f4\u70b9\u7684\u7279\u5b9a\u5750\u6807\u503c\uff08\u989c\u8272\u503c\u3001\u5c3a\u5bf8\u503c\uff09\u7b49\uff0c\u800c\u8fd9\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u5b9e\u65f6\u8fd4\u56de\u5f53\u524d\u9700\u8981\u7684\u5750\u6807\u503c\uff0c\u4e8e\u662f\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u6309\u7167\u7279\u5b9a\u7684\u4f4d\u7f6e\u5173\u7cfb\u3001\u8fd0\u52a8\u51fd\u6570\u7b97\u6cd5\uff0c\u6c42\u5f97\u6574\u4f53\u56fe\u5f62\u7684\u8fd0\u52a8\u5750\u6807\uff0c\u4ece\u800c\u5f62\u6210\u5b8c\u6574\u7684\u52a8\u753b\u6548\u679c\u3002<\/p>\n
\u5bf9\u4e8e\u8fd9\u91cc\u7684\u56fe\u5f62\u53d8\u6362\uff0c\u662f\u975e\u5e38\u7b80\u5355\u7684\uff0c\u7eaf\u7cb9\u7b2c\u4e09\u4e2a\u70b9\u6c34\u5e73\u4f4d\u79fb\u5230\u4e2d\u5fc3\u70b9\u3002<\/p>\n
\"5\u70b9\u5750\u6807\u53d8\u6362\"<\/p>\n
\u5957\u7528Snap.animate()<\/code>\u65b9\u6cd5\u5c31\u662f\uff08\u5047\u8bbe\u534a\u5f84\u662f200\uff09\uff08\u4e0b\u9762\u5199\u6cd5\u7eaf\u793a\u610f\uff0c\u4e0d\u8981\u592a\u8ba4\u771f\uff09\uff1a<\/p>\n
\n
Snap.animate(200, 0, funciton(val) {\n    polygon.attr({\n        points: \"\u70b91, \u70b92, (\u4e2d\u5fc3\u70b9x\u5750\u6807 + val, \u70b93 y\u5750\u6807), \u70b94, \u70b95\"\n    });\n}, 300, mina.backout);<\/pre>\n<\/div>\n
\u5177\u4f53\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u201c\u53f3\u952e\u9875\u9762\u2192\u67e5\u770b\u6e90\u4ee3\u7801\u201d\uff0c\u4e0d\u8981\u518d\u90ae\u4ef6\u6211\u8981\u6e90\u4ee3\u7801\u4e86\uff0c\u8bf8\u4f4d\uff01<\/p>\n
OK, \u4ee5\u4e0a\u5c31\u662fSVG\u56fe\u5f62\u52a8\u753b\u7406\u8bba\u57fa\u7840\uff1a\u4f7f\u7528\u52a8\u753b\u5f15\u64ce\u65b9\u6cd5(\u5982Snap.svg\u7684Snap.animate()<\/code>\u65b9\u6cd5)\uff0c\u6539\u53d8\u7279\u70b9\u65f6\u95f4\u70b9\u7684\u7279\u5b9a\u53c2\u6570\u503c\uff0c\u5e76\u5b9e\u65f6\u5237\u65b0\u3002<\/p>\n
\u56db\u3001\u66f4\u5b9e\u9645\u7684SVG\u56fe\u5f62\u52a8\u753b\u5b9e\u4f8b<\/h3>\n
\u5148\u7785\u7785Gif\u622a\u56fe\u6548\u679c\uff1a
\n\"SVG\u56fe\u5f62\u52a8\u753b\u622a\u5c4f\u6548\u679c\"<\/p>\n
\u4e0a\u56fe\u6548\u679c\u5c31\u662f\u67d0\u5b9e\u9645\u9879\u76ee\u4e2d\u5b9e\u73b0\u7684\u6548\u679c\u793a\u610f\u3002<\/p>\n
\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aSVG path d\u8def\u5f84\u53c2\u6570\u53d8\u5316\u4e0e\u56fe\u5f62\u52a8\u753bdemo<\/a><\/p>\n
\u8fd9\u662f\u4e00\u4e2a\u4f2a\u7ffb\u9875\u6548\u679c\uff0c\u8bbe\u8ba1\u5e08\u505a\u4e86\u6b64\u6548\u679c\u89c6\u9891\u3002\u663e\u7136\uff0c\u8bbe\u8ba1\u5e08\u5982\u6b64\u7ed9\u529b\uff0c\u8eab\u4e3a\u524d\u7aef\uff0c\u5fc5\u987b\u9ad8\u4fdd\u771f\u5b9e\u73b0\u3002\u6b64\u5904\uff0cCSS3\u663e\u7136\u662f\u65e0\u80fd\u4e3a\u529b\u7684\uff0c\u56e0\u4e3a\u6298\u89d2\u6709\u5185\u51f9\u72b6\u6001\uff08\u89c1\u4e0b\u6355\u6349\u622a\u56fe\uff09\uff0c\u4f46\u662f\uff0c\u5bf9\u4e8eSVG\u56fe\u5f62\u52a8\u753b\uff0c\u8fd9\u5c31\u662f\u4e2a\u5c0f\u513f\u79d1\u3002<\/p>\n
\"\u5185\u51f9\u6548\u679c\u622a\u56fe\u6f14\u793a\"<\/p>\n
\u753b\u4e2a\u793a\u610f\u56fe\uff0c\u5176\u5b9e\u5b9e\u73b0\u539f\u7406\u76f8\u5f53\u7b80\u5355\uff1a
\n\"hover\u6548\u679c\u53d8\u6362\u793a\u610f\u56fe\"<\/p>\n
\u5176\u5b9e\u8ddf\u4e0a\u9762\u7684\u4e94\u8fb9\u5f62\u6548\u679c\u7c7b\u4f3c\uff0c\u90fd\u662f\u67d0\u4e00\u4e2a\u70b9\u6cbf\u7740\u7279\u5b9a\u7684\u8f68\u8ff9\u8fd0\u52a8\uff0c\u56fe\u5f62\u4e0d\u65ad\u6e32\u67d3\u5f62\u6210\u52a8\u753b\u6548\u679c\u3002<\/p>\n
\u53ea\u662f\u8fd9\u91cc\u662f4\u4e2a\u70b9\uff0c\u70b9\u7684\u8fd0\u52a8\u8f68\u8ff9\u662f\u4e2a\u659c\u7ebf\u800c\u5df2\u3002<\/p>\n
\u659c\u7ebf\u7684\u51fd\u6570\u65b9\u7a0b\u5f0f\u5e94\u8be5\u90fd\u8bb0\u5f97\u5427\uff1a<\/p>\n
\n
y = a*x + b;<\/pre>\n<\/div>\n
\u6211\u4eec\u77e5\u9053SVG\u53f3\u4e0a\u89d2\u548c\u5de6\u4e0b\u89d2\u7684\u5750\u6807\uff0c\u4e0a\u9762\u7684a<\/code>\u548cb<\/code>\u901f\u901f\u5c31\u8ba1\u7b97\u51fa\u6765\u4e86\u3002\u4e0d\u5c55\u5f00\u3002<\/p>\n
\u8fd8\u662fSnap.animate()<\/code>\u65b9\u6cd5\uff0c\u5c55\u5f00\u7684\u76f8\u5173JS\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\n
\/\/ \u56fe\u5f62\u5c55\u5f00<\/span>\nSnap.animate(svg_width, 0, function(x) {\n    var p4 = [x, a * x + b].join(\" \");\n    \/\/ \u8def\u5f84\u53d8\u5316\u8d70\u8d77<\/span>\n    \/\/ M p1 L p2 L p3 L p4 L p1Z<\/span>\n    path.attr({\n        d: \"M\" + [p1, p2, p3, p4, p1].join(\"L\") + \"Z\"\n    });\n}, 200, mina.easein);\n<\/pre>\n<\/div>\n
\u54c8\uff0c\u8fd9\u91cc\u4e3a\u4e86\u627f\u4e0a\u542f\u4e0b\uff0c\u4f7f\u7528\u4e86path<\/code>\u8def\u5f84\u5143\u7d20\u3002\u5982\u679c\u4f60\u60f3\u66f4\u7b80\u5355\u5b9e\u73b0\uff0c\u53ef\u4ee5\u4f7f\u7528polyline<\/code>\u5143\u7d20+points<\/code>\u5c5e\u6027\u3002<\/p>\n
\u7b80\u5355\u5427~<\/p>\n
\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u5c55\u793a\u7684\u4e24\u4e2a\u6548\u679c\u90fd\u662f\u53ea\u6709\u4e00\u4e2a\u70b9\u53d8\u5316\uff0c\u662f\u4e0d\u662f\u89c9\u5f97\u6ca1\u6709\u4ec0\u4e48\u6311\u6218\u6027\u554a\uff1f\u54c8\uff0c\u90a3\u4e0b\u9762\u6211\u4eec\u518d\u770b\u4e00\u4e2a\u591a\u70b9\u8054\u52a8\u53d8\u5316\u7684\u590d\u6742\u4f8b\u5b50\u3002<\/p>\n
\u4e94\u3001\u591a\u70b9\u8054\u52a8\u7684\u590d\u6742SVG\u56fe\u5f62\u52a8\u753b\u5b9e\u4f8b<\/h3>\n
\u5916\u7525\u70b9\u706f\u7b3c-\u7167\u65e7(\u8205)\uff0c\u5148\u4e0a\u4e00\u4e2aGif\uff0c\u4e0b\u56fe\u4e3a\u7f29\u5c0f\u7248\uff1a
\n\"\u6f58\u591a\u62c9\u6548\u679cGif\u793a\u610f\"<\/p>\n
\u4e0a\u56fe\u8fd9\u79cd\u4ece\u76d2\u5b50\u5c55\u5f00\u4ee5\u53ca\u6536\u5165\u76d2\u5b50\u7684\u6548\u679c\uff0c\u6211\u79f0\u4e4b\u4e3a\u201c\u6f58\u591a\u62c9\u6548\u679c\u201d\u2014\u2014\u6253\u5f00\u6f58\u591a\u62c9\u7684\u76d2\u5b50\u3002<\/p>\n
\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aSVG\u6f58\u591a\u62c9\u56fe\u5f62\u52a8\u753b\u6548\u679cdemo<\/a><\/p>\n
\u7b2c\u4e00\u6b21\u8f7d\u5165\u4f4d\u7f6e\u662f\u56fa\u5b9a\u7684\uff0c\u5982\u679c\u6709\u70b9\u51fb\u884c\u4e3a\uff0c\u5219\u540e\u9762\u5237\u65b0\u7684\u65f6\u5019\uff0c\u5de5\u5177\u680f\u4ee5\u53caChrome\u56fe\u6807\u7684\u4f4d\u7f6e\u5c31\u4f1a\u968f\u673a\uff0c\u4f60\u4f1a\u53d1\u73b0\uff0c\u65e0\u8bba\u5728\u4f55\u65b9\uff0c\u6f58\u591a\u62c9\u90fd\u4f1a\u4ee5\u6b63\u786e\u7684\u65b9\u5f0f\u6253\u5f00\u3002\u5f53\u504f\u79fb\u4f4d\u7f6e\u8f83\u5927\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u770b\u5230\u660e\u663e\u7684\u8fb9\u7f18\u5f27\u7ebf\uff0c\u8fd9\u662f\u56e0\u4e3a\u4f7f\u7528\u4e86\u4e8c\u6b21\u8d1d\u585e\u5c14\u66f2\u7ebf\u7684\u7f18\u6545\u3002<\/p>\n
\u5b9e\u73b0\u539f\u7406<\/strong>
\n\u539f\u7406\u4e0e\u4e0a\u9762\u7684\u4e24\u4e2a\u4f8b\u5b50\u7c7b\u4f3c\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff0c\u8fd9\u91cc\uff0cSVG\u56fe\u5f62\u76848\u4e2a\u70b9\u8981\u540c\u65f6\u8fd0\u52a8\uff0c\u800c\u4e0d\u662f\u53ea\u67091\u4e2a\u70b9\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u76d2\u5b50\u8981\u6536\u8d77\u7684\u65f6\u5019\uff0c8\u4e2a\u70b9\u4f9d\u6b21\u5954\u5411\u76d2\u5b50\uff0c\u586b\u5145\u8def\u5f84\u5b9e\u65f6\u6e32\u67d3\uff0c\u5c31\u6709\u4e86\u6211\u4eec\u770b\u5230\u7684\u6548\u679c\u4e86\u3002<\/p>\n
\u5982\u679c\u8981\u5177\u4f53\u5c55\u5f00\uff0c\u6211\u52d2\u4e2a\u53bb\uff0c\u4f30\u8ba1\u8981\u4e0a\u767e\u884c\u5f00\u5916\u4e86\u3002\u7bc7\u5e45\u5df2\u7ecf\u5f88\u957f\uff0c\u8fd9\u91cc\u7b80\u5355\u63d0\u51e0\u4e2a\u8981\u70b9\uff1a<\/p>\n
    \n
  1. \u540c\u6837\uff0c\u8fd8\u662f\u4f9d\u8d56\u4e8eSnap.svg.js\u7684Snap.animate()<\/code>\u65b9\u6cd5\uff0cdemo\u4e2d\u6709\u4f7f\u7528\u5176\u56de\u8c03\u65b9\u6cd5\u3002<\/li>\n
  2. \u53ea\u80fd\u662fpath<\/code>\u5143\u7d20\uff0c\u9664\u4e86\u8d77\u59cb\u70b9\u548c\u95ed\u5408\u70b9\uff08\u540c\u4e00\u70b9\uff09\uff0c\u5176\u5b9e\u5747\u662f\u4e8c\u6b21\u8d1d\u585e\u5c14\u66f2\u7ebf\u6307\u4ee4(Q<\/code>)\u5750\u6807\u3002\/\/zxx: \u8d1d\u585e\u5c14\u66f2\u7ebf\u6307\u4ee4\u53ef\u53c2\u8003\u524d\u4e00\u7bc7\u6587\u7ae0\u201c\u6df1\u5ea6\u638c\u63e1SVG\u8def\u5f84path\u7684\u8d1d\u585e\u5c14\u66f2\u7ebf\u6307\u4ee4<\/a>\u201d\u3002\u4e8c\u6b21\u8d1d\u585e\u5c14\u66f2\u7ebf\u6307\u4ee4\u7ed8\u5236\u76f4\u7ebf\u53ea\u8981\u5bf9\u5e94\u65b9\u4f4d\u5750\u6807\u503c\u4e00\u81f4\u5c31\u53ef\u4ee5\u3002<\/span>\n
    \"\u6f58\u591a\u62c9\u6548\u679c\u4e0e\u8def\u5f84\u5404\u4e2a\u70b9\u6307\u4ee4\"<\/li>\n
  3. \u6bcf\u4e00\u4e2a\u70b9\u5bf9\u5e94\u4e00\u4e2a\u8fd0\u52a8\u51fd\u6570\uff0c\u672cdemo\u4f7f\u7528\u7684\u662f\u7ebf\u6027\u8fd0\u52a8\u51fd\u6570\uff0c\u4e5f\u5c31\u662f\u4e0a\u9762\u63d0\u5230\u7684\uff1a\n
    \n
    y = a*x + b;<\/pre>\n<\/div>\n
    \u5f53\u7136\uff0c\u5982\u679c\u4f60\u6570\u5b66\u8db3\u591f\u597d\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528\u66f2\u7ebf\u51fd\u6570\uff0c\u6548\u679c\u4f1a\u66f4funny!\n<\/li>\n
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    \n\u672c\u6587\u5730\u5740\uff1a    http:\/\/www.zhangxinxu.com\/wordpress\/?p=4225<\/a><\/p>\n
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