{"id":5001,"date":"2020-02-14T15:21:39","date_gmt":"2020-02-14T06:21:39","guid":{"rendered":"https:\/\/blog.bitmeister.jp\/?p=5001"},"modified":"2020-02-12T13:27:08","modified_gmt":"2020-02-12T04:27:08","slug":"fabric-js%e3%81%ae%e3%83%91%e3%82%b9%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92paper-js%e3%81%a7%e5%8d%98%e7%b4%94%e5%8c%96%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/blog.bitmeister.jp\/?p=5001","title":{"rendered":"Fabric.js\u306e\u30d1\u30b9\u30c7\u30fc\u30bf\u3092Paper.js\u3067\u5358\u7d14\u5316\u3059\u308b"},"content":{"rendered":"<p><a href=\"http:\/\/fabricjs.com\/\">Fabric.js<\/a> \u3092\u4f7f\u7528\u3057\u3066Canvas\u4e0a\u306b\u30d5\u30ea\u30fc\u30cf\u30f3\u30c9\u3067\u63cf\u3044\u305f\u7dda\u3092 <code>toSVG<\/code> \u3084<br \/>\n<code>toJSON<\/code> \u3067\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3057\u3066\u307f\u308b\u3068 <code>fabric.Path<\/code> \u306e\u30d9\u30b8\u30a7\u66f2\u7dda\u306e\u30c7\u30fc\u30bf\u304c\u7d50\u69cb\u306a\u91cf\u306b\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002 <a href=\"http:\/\/paperjs.org\/\">Paper.js<\/a> \u306e <a href=\"http:\/\/paperjs.org\/reference\/path\/#simplify\"><code>path.simplify<\/code><\/a> \u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001 <code>fabric.Path<\/code> \u306e\u30c7\u30fc\u30bf\u91cf\u3092\u6e1b\u3089\u3057\u3066\u30b9\u30e0\u30fc\u30ba\u306a\u7dda\u3092\u7c21\u5358\u306b\u63cf\u753b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<p><!--more--><\/p>\n<p><a href=\"https:\/\/blog.bitmeister.jp\/?p=4990\">\u524d\u56de\u3064\u304f\u3063\u305f<\/a> <code>fabric.Path<\/code> \u306e\u30b5\u30d6\u30af\u30e9\u30b9 <code>fabric.ExPath<\/code> \u3068 <code>fabric.PencilBrush<\/code> \u306e\u30b5\u30d6\u30af\u30e9\u30b9 <code>fabric.ExPencilBrush<\/code> \u306b\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u3066\u3001 <code>fabric.ExPath<\/code> \u3092\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3057\u305f\u3068\u304d\u306e\u30c7\u30fc\u30bf\u3092\u5358\u7d14\u5316\u3057\u3066\u307f\u307e\u3059\u3002<br \/>\n\uff08Fabric.js\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f3.4.0\u3001Paper.js\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f0.12.3\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\uff09<\/p>\n<p>\u307e\u305a\u3001 <code>fabric.ExPath<\/code> \u306b Paper.js \u306e <code>path.simplify<\/code> \u3092\u3064\u304b\u3063\u3066\u30d1\u30b9\u3092\u5358\u7d14\u5316\u3059\u308b\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: jscript; gutter: false; title: ; notranslate\" title=\"\">\r\nfabric.ExPath = fabric.util.createClass(fabric.Path, {\r\n  initialize (path, options) {\r\n    options || (options = {});\r\n\r\n    this.callSuper('initialize', path, options);\r\n\r\n    this.brushType = options.brushType || 'pencil';\r\n\r\n    \/\/ Paper.js\u306e\u521d\u671f\u5316\r\n    paper.setup();\r\n\r\n  },\r\n\r\n  simplify (tolerance) {\r\n    const pathData = this.path.map((path) =&gt; {\r\n      return path.join(' ');\r\n    }).join(' ');\r\n\r\n    \/\/ Paper.js\u3067\u30d1\u30b9\u3092\u5358\u7d14\u5316\r\n    const obj = new paper.Path(pathData);\r\n    obj.simplify(tolerance);\r\n\r\n    const path = new fabric.ExPath(obj.pathData);\r\n    this.path = path.path;\r\n  }\r\n\r\n});\r\n<\/pre>\n<p>\u6b21\u306b\u3001 <code>fabric.ExPencilBrush<\/code> \u3067 <code>fabric.ExPath<\/code> \u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304cCanvas\u306b\u8ffd\u52a0\u3055\u308c\u308b\u3068\u304d\u306b\u3001\u5148\u307b\u3069\u8ffd\u52a0\u3057\u305f <code>fabric.ExPath<\/code> \u306e\u5358\u7d14\u5316\u51e6\u7406\uff08simplify\uff09\u304c\u547c\u3070\u308c\u308b\u3088\u3046\u306b <code>_finalizeAndAddPath<\/code> \u306e\u51e6\u7406\u3092\u30aa\u30fc\u30d0\u30e9\u30a4\u30c9\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: jscript; gutter: false; title: ; notranslate\" title=\"\">\r\nfabric.ExPencilBrush = fabric.util.createClass(fabric.PencilBrush, {\r\n  _finalizeAndAddPath () {\r\n    const ctx = this.canvas.contextTop;\r\n    ctx.closePath();\r\n    if (this.decimate) {\r\n      this._points = this.decimatePoints(this._points, this.decimate);\r\n    }\r\n    const pathData = this.convertPointsToSVGPath(this._points).join('');\r\n    if (pathData === 'M 0 0 Q 0 0 0 0 L 0 0') {\r\n      this.canvas.requestRenderAll();\r\n      return;\r\n    }\r\n\r\n    const path = this.createPath(pathData);\r\n\r\n    \/\/ \u30d1\u30b9\u306e\u30c7\u30fc\u30bf\u3092\u5358\u7d14\u5316\r\n    path.simplify(1.5);\r\n\r\n    this.canvas.clearContext(this.canvas.contextTop);\r\n    this.canvas.add(path);\r\n    this.canvas.requestRenderAll();\r\n    path.setCoords();\r\n    this._resetShadow();\r\n\r\n    this.canvas.fire('path:created', { path: path });\r\n  }\r\n});\r\n<\/pre>\n<p>\u3053\u308c\u3067\u3001 <code>fabric.ExPencilBrush<\/code> \u3092\u3064\u304b\u3063\u3066Canvas\u306b\u7d75\u3092\u63cf\u304f\u3068\u3001\u30d1\u30b9\u306e\u30c7\u30fc\u30bf\u304c\u5358\u7d14\u5316\u3055\u308c\u305f <code>fabric.ExPath<\/code> \u304cCanvas\u306b\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<br \/>\nPaper.js \u306e <code>path.simplify<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u30d1\u30b9\u306e\u30c7\u30fc\u30bf\u306e\u30d9\u30b8\u30a7\u66f2\u7dda\u306f\u30013\u6b21\u30d9\u30b8\u30a7\u66f2\u7dda\u306b\u306a\u308a\u307e\u3059\uff08 <code>fabric.PencilBrush<\/code> \u3067\u63cf\u753b\u3057\u305f <code>fabric.Path<\/code> \u306e\u30d9\u30b8\u30a7\u66f2\u7dda\u306f2\u6b21\u30d9\u30b8\u30a7\u66f2\u7dda\uff09\u3002  <code>path.simplify<\/code> \u306e\u5f15\u6570\u306b\u4e0e\u3048\u308b\u5024\u304c\u5927\u304d\u3044\u307b\u3069\u30d1\u30b9\u304c\u5358\u7d14\u5316\u3055\u308c\u3066\u30b9\u30e0\u30fc\u30ba\u306a\u66f2\u7dda\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u5143\u306e\u30d1\u30b9\u306e\u5f62\u72b6\u3068\u306e\u5dee\u304c\u5927\u304d\u304f\u306a\u308b\u306e\u3067\u3001\u9069\u5b9c\u8abf\u6574\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u3088\u3044Fabric.js\u30e9\u30a4\u30d5\u3092\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fabric.js \u3092\u4f7f\u7528\u3057\u3066Canvas\u4e0a\u306b\u30d5\u30ea\u30fc\u30cf\u30f3\u30c9\u3067\u63cf\u3044\u305f\u7dda\u3092 toSVG \u3084 toJSON \u3067\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3057\u3066\u307f\u308b\u3068 fabric.Path \u306e\u30d9\u30b8\u30a7\u66f2\u7dda\u306e\u30c7\u30fc\u30bf\u304c\u7d50\u69cb\u306a\u91cf\u306b\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002 Paper. [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[155,157],"class_list":["post-5001","post","type-post","status-publish","format-standard","hentry","category-tech","tag-fabric-js","tag-paper-js"],"_links":{"self":[{"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=\/wp\/v2\/posts\/5001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5001"}],"version-history":[{"count":8,"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=\/wp\/v2\/posts\/5001\/revisions"}],"predecessor-version":[{"id":5010,"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=\/wp\/v2\/posts\/5001\/revisions\/5010"}],"wp:attachment":[{"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.bitmeister.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}