{"id":1221,"date":"2010-11-04T21:17:29","date_gmt":"2010-11-04T13:17:29","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1221"},"modified":"2018-01-01T20:46:14","modified_gmt":"2018-01-01T12:46:14","slug":"%e6%97%b6%e9%b2%9c%e6%8a%80%e6%9c%af%ef%bc%9a%e5%9b%be%e5%83%8f%e7%9a%84%e5%83%8f%e7%b4%a0%e5%8c%96%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2010\/11\/%e6%97%b6%e9%b2%9c%e6%8a%80%e6%9c%af%ef%bc%9a%e5%9b%be%e5%83%8f%e7%9a%84%e5%83%8f%e7%b4%a0%e5%8c%96%e5%a4%84%e7%90%86\/","title":{"rendered":"\u65f6\u9c9c\u6280\u672f\uff1a\u56fe\u50cf\u7684\u50cf\u7d20\u5316\u5904\u7406"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a><br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1221\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=1221<\/a><\/p>\n<p><script src=\"http:\/\/www.zhangxinxu.com\/study\/201011\/close-pixelate\/close-pixelate.js\"><\/script><\/p>\n<style type=\"text\/css\">\na.button {\n    font-size: 14px;\n    padding: 5px 15px;\n    color: #FFF;\n    background-color: #036;\n    -webkit-border-radius: 15px;\n       -moz-border-radius: 15px;\n            border-radius: 15px;\n    -webkit-box-shadow: 0px 2px 5px hsla(0,0%,0%,.15);\n       -moz-box-shadow: 0px 2px 5px hsla(0,0%,0%,.15);\n            box-shadow: 0px 2px 5px hsla(0,0%,0%,.15);\n}\na.button:hover {\n    background-color: #336;\n}\na.button, a.button:hover {\n    background-image: -moz-linear-gradient(-90deg, \n        hsla(0,0%,100%,.2),  \n        hsla(0,0%,100%,.0) 50%, \n        hsla(0,0%,0%,.0) 50%, \n        hsla(0,0%,0%,.2) 100%  \n    );\n    background-image: -webkit-gradient(linear, 0 top, 0 bottom, \n        from(hsla(0,0%,100%,.2)),\n        color-stop(50%, hsla(0,0%,100%,.0)), \n        color-stop(50%, hsla(0,0%,0%,.0)), \n        to(hsla(0,0%,0%,.2)) \n    );\n}\na.button:active {\n    -webkit-box-shadow: inset 0px 2px 13px hsla(0,0%,0%,.6);\n       -moz-box-shadow: inset 0px 2px 13px hsla(0,0%,0%,.6);\n            box-shadow: inset 0px 2px 13px hsla(0,0%,0%,.6);\n}\n.codebg{display:inline-block; padding:1px 5px; background-color:#f0f3f9;}<\/style>\n<h3>\u4e00\u3001\u5f00\u95e8\u89c1\u5c71<\/h3>\n<p>\u53d7\u7f8e\u56fd\u8096\u50cf\u753b\u5bb6Chuck Close\u7684\u542f\u53d1\uff0c\u6b64\u811a\u672c\u901a\u8fc7\u4f7f\u7528HTML5 canvas\u5143\u7d20\u628a\u56fe\u50cf\u8f6c\u6362\u6210\u50cf\u7d20\u5f62\u5f0f\uff0c\u8fd9\u57fa\u672c\u4e0a\u662f\u4e00\u4e2a\u4e3acanvas imageData\u529f\u80fd\u7684\u7b80\u5355\u6f14\u793a\u3002<\/p>\n<p>\u6b64\u811a\u672c\u73b0\u5b58\u4e8eGitHub\u4e0a\uff0c\u60a8\u53ef\u4ee5\u5728\u90a3\u91cc\u4e0b\u8f7d\u5230\u811a\u672c\u548c\u793a\u4f8b\u3002<\/p>\n<p><a href=\"http:\/\/github.com\/desandro\/close-pixelate\" class=\"button\" target=\"_blank\">\u5728GitHub\u4e0a\u67e5\u770b\u50cf\u7d20\u5316\u8d44\u6e90<\/a><\/p>\n<h3>\u4e8c\u3001\u8d21\u732e\u8005<\/h3>\n<ul id=\"ul\">\n<li><a href=\"http:\/\/desandro.com\">David DeSandro<\/a><\/li>\n<li class=\"mt5\"><a href=\"http:\/\/twitter.com\/jfsiii\">John Schulz<\/a><\/li>\n<\/ul>\n<h3>\u4e09\u3001\u9009\u9879<\/h3>\n<p>\u6b64\u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u62e5\u6709\u4e00\u7ec4\u9009\u9879\u3002<\/p>\n<ul>\n<li class=\"mt5\"><code class=\"codebg\">resolution<\/code> : \u6e32\u67d3\u50cf\u7d20\u95f4\u7684\u50cf\u7d20\u8ddd\u79bb\uff0c\u5fc5\u987b\u7684\u3002<\/li>\n<li class=\"mt5\"><code class=\"codebg\">shape<\/code> : \u50cf\u7d20\u7684\u5f62\u72b6\u3002 \u63a5\u53d7\u7684\u9009\u9879\u6709\uff1a<code>square<\/code>, <code>circle<\/code>, \u4ee5\u53ca<code>diamond<\/code>\u3002\u53ef\u9009\uff0c\u9ed8\u8ba4\u662f<code>square<\/code>\u3002<\/li>\n<li class=\"mt5\"><code class=\"codebg\">size<\/code> : \u6e32\u67d3\u50cf\u7d20\u7684\u50cf\u7d20\u5927\u5c0f\u503c\uff0c\u53ef\u9009\uff0c\u9ed8\u8ba4\u503c\u662f<code>resolution<\/code>\u3002<\/li>\n<li class=\"mt5\"><code class=\"codebg\">offset<\/code> : \u504f\u79fb\u50cf\u7d20\u3002\u53ef\u9009\uff0c\u9ed8\u8ba4\u662f<code>0<\/code>\u3002\u53ef\u4ee5\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u503c<code>15<\/code>\u5b9e\u73b0\u5bf9\u89d2\u7ebf\u504f\u79fb\uff0c\u6216\u8005\u662f\u4e2a\u6570\u7ec4\u6216X\/Y\u5173\u952e\u5b57\u7684\u5bf9\u8c61\u5b9e\u73b0\u504f\u79fb\uff1a <code>[ 15, 5 ]<\/code> \u6216 <code>{ x: 15, y: 5 }<\/code>\u3002<\/li>\n<li class=\"mt5\"><code class=\"codebg\">alpha<\/code> : \u5c0f\u6570\u503c\uff0c\u6307\u6e32\u67d3\u7684\u900f\u660e\u5ea6\u3002 \u53ef\u9009\uff0c\u9ed8\u8ba4\u662f<code>1<\/code>\u3002<\/li>\n<\/ul>\n<h3>\u56db\u3001\u6548\u679c\u9884\u89c8\uff08IE6\/7\/8\u5efa\u8bae\u56de\u5bb6\u770bQQ PK 360\uff09<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\u50cf\u7d20\u5316\u793a\u4f8b\u56fe\u7247 \u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b\" src=\"\/study\/201011\/close-pixelate\/img\/pixel-example.jpg\" title=\"\u50cf\u7d20\u5316\u793a\u4f8b\u56fe\u7247 \u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b\" class=\"alignnone\" width=\"300\" height=\"426\" \/> <img loading=\"lazy\" decoding=\"async\" id=\"pixelExample2\" src=\"\/study\/201011\/close-pixelate\/img\/pixel-example.jpg\" width=\"300\" height=\"426\" \/> <img loading=\"lazy\" decoding=\"async\" id=\"pixelExample3\" src=\"\/study\/201011\/close-pixelate\/img\/pixel-example.jpg\" width=\"300\" height=\"426\" \/><\/p>\n<p><script type=\"text\/javascript\">\ndocument.getElementById('pixelExample2').closePixelate( [ \n    { resolution: 24 }\n  ] );\n  document.getElementById('pixelExample3').closePixelate( [ \n    { resolution: 24 },\n    { shape : 'circle', resolution : 24, size: 16, offset: 12, alpha: 0.5 }\n  ] );\n<\/script><\/p>\n<h3>\u4e94\u3001\u4ee3\u7801\u793a\u4f8b<\/h3>\n<p>\u8981\u60f3\u8ba9\u56fe\u7247\u50cf\u7d20\u5316\uff0c\u9996\u5148\u8c03\u7528\u5982\u4e0b\u811a\u672c\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;script type=\"text\/javascript\" src=\"http:\/\/www.zhangxinxu.com\/study\/201011\/close-pixelate\/close-pixelate.js\">&lt;\/script><\/pre>\n<\/div>\n<p>\u7136\u540e\u8c03\u7528\u65b9\u6cd5closePixelate\uff0c\u66f4\u5177\u4f53\u7684\u662f\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>\u56fe\u7247dom.closePixelate(\u9009\u9879\u53c2\u6570)<\/pre>\n<\/div>\n<p>\u6b64\u811a\u672c\u53ef\u4ee5\u5e94\u7528\u4e8e\u5404\u7c7b\u56fe\u7247\u3002\u6839\u636e<a target=\"_blank\" href=\"http:\/\/dev.w3.org\/html5\/spec\/the-canvas-element.html#security-with-canvas-elements\">HTML5\u89c4\u8303<\/a>\uff0c\u6d4f\u89c8\u5668\u7981\u6b62\u4efb\u4f55\u5916\u90e8\u6258\u7ba1\u56fe\u7247\u4e0a\u4f7f\u7528getImageData ()\uff0c\u4f46\u662f\uff0c\u591a\u4e8f\u4e86John Schulz\u7684\u5de8\u5927\u8d21\u732e\uff0c\u901a\u8fc7\u4f7f\u7528Max Novakovic\u7684<a target=\"_blank\" href=\"http:\/\/www.maxnov.com\/getimagedata\">getImageData API<\/a>\uff0c\u8fdb\u4e00\u6b65\u50cf\u7d20\u5316\u5177\u6709\u5185\u7f6e\u7684\u65b9\u6cd5\u6765\u89e3\u51b3\u8fd9\u4e2a\u5b89\u5168\u7279\u5f81\u3002<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;img id=\"pixelExample2\" src=\"\/study\/201011\/close-pixelate\/img\/pixel-example.jpg\" width=\"300\" height=\"426\" \/><\/pre>\n<\/div>\n<p>\u5728\u4f60\u7684\u811a\u672c\u4e2d\u4f7f\u7528closePixelate\u65b9\u6cd5\u4e0e\u56fe\u7247\u4e0a\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u4e00\u7ec4\u6570\u7ec4\u9009\u9879\u63a7\u5236\u56fe\u7247\u8f93\u51fa\u3002\u5982\u4e0b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>document.getElementById('pixelExample2').closePixelate( [ \n    { resolution: 24 }\n  ] );<\/pre>\n<\/div>\n<p>\u8fd9\u5c31\u662f\u4e0a\u9762\u7b2c\u4e8c\u5f20\u8001\u4eba\u5934\u7684\u50cf\u7d20\u5316\u6548\u679c\u3002<\/p>\n<p>\u6ce8\u610f\uff1a\u8c8c\u4f3c\u56fe\u7247\u5730\u5740\u8de8\u57df\u4f1a\u6ca1\u6709\u6548\u679c~~<\/p>\n<h3>\u516d\u3001\u6700\u540e\u4e9b\u4e1c\u4e1c<\/h3>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a target=\"_blank\" class=\"a_link\" href=\"http:\/\/www.zhangxinxu.com\/study\/201011\/close-pixelate\/examples.html\">\u7eda\u70c2\u5927\u56fe\u50cf\u7d20\u5316demo<\/a><\/p>\n<p>\u4e0b\u56fe\u5c31\u662f\u5927\u56fe\u50cf\u7d20\u5316demo\u7684\u622a\u56fe\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" alt=\"\u5927\u56fe\u50cf\u7d20\u5316demo\u622a\u56fe \u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201011\/2010-11-04_210754.png\" title=\"\u5927\u56fe\u50cf\u7d20\u5316demo\u622a\u56fe \u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b\" class=\"imgpad\" width=\"511\" height=\"362\" \/><\/p>\n<p>\u53c2\u8003\u6587\u7ae0\uff1a<a target=\"_blank\" href=\"http:\/\/desandro.com\/resources\/close-pixelate\/\">Close Pixelate<\/a><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u6765\u81ea<a href=\"http:\/\/www.zhangxinxu.com\/\">\u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<\/a>[<a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a>]<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1221\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=1221<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1221\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201011\/2010-11-04_211114.png\" class=\"imgpad mb10\" width=\"463\" height=\"114\" \/><\/a><br \/>\n\u672c\u6587\u66f4\u591a\u7684\u662f\u6280\u672f\u5c55\u793a\uff0c\u5c55\u793a\u5982\u4f55\u5bf9\u56fe\u50cf\u8fdb\u884c\u50cf\u7d20\u5316\u5904\u7406\uff0c\u53ef\u65b9\u5757\u50cf\u7d20\u5316\uff0c\u5706\u5f62\u50cf\u7d20\u5316\u3002\u7b80\u6d01\u660e\u4e86\uff0c\u63d0\u4f9bdemo\uff0c\u622a\u56fe\uff0c\u4ee5\u53ca\u4ee3\u7801\u5c55\u793a\uff0c\u5e0c\u671b\u80fd\u5bf9\u60a8\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[896],"tags":[52,158,522,75],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/1221"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=1221"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/1221\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=1221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=1221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=1221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}