{"id":17035,"date":"2021-12-03T14:50:05","date_gmt":"2021-12-03T06:50:05","guid":{"rendered":"http:\/\/www.jdcui.com\/?p=17035"},"modified":"2026-03-01T12:36:15","modified_gmt":"2026-03-01T04:36:15","slug":"%e7%ac%94%e8%ae%b0%e5%87%a0%e4%bd%95rhino%e5%9c%86%e5%bc%a7%e4%b8%8e%e6%8a%9b%e7%89%a9%e7%ba%bf%e7%9a%84%e5%b7%ae%e5%bc%82the-difference-between-arc-and-parabola","status":"publish","type":"post","link":"http:\/\/www.jdcui.com\/?p=17035","title":{"rendered":"[Rhino] \u629b\u7269\u7ebf\u4e0e\u5408\u7406\u62f1\u8f74\u7ebf [Parabola and reasonable arch axis]"},"content":{"rendered":"<p><span style=\"color: #ff00ff; background-color: #ccffcc;\"><strong>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002<\/strong><\/span><\/p>\n<hr \/>\n<p>\u6839\u636e\u7ed3\u6784\u529b\u5b66\u7684\u77e5\u8bc6\u53ef\u77e5\uff0c\u629b\u7269\u7ebf\u4e3a<strong>\u4e09\u94f0\u62f1\uff08Three hinged arch\uff09<\/strong>\u5728\u627f\u53d7<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d<\/strong>\u4e0b\u7684\u5408\u7406\u62f1\u8f74\u7ebf\uff0c\u5373 <strong>\u4e09\u94f0\u62f1<\/strong> \u6309\u629b\u7269\u7ebf\u5e03\u7f6e\uff0c\u62f1\u5728<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d<\/strong>\u4f5c\u7528\u4e0b\uff0c\u53ea\u53d7\u8f74\u529b\uff0c\u4e0d\u53d7\u5f2f\u77e9\u3002\u57fa\u672c\u7b80\u56fe\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17045\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_1.png\" alt=\"\" width=\"771\" height=\"383\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_1.png 771w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_1-768x382.png 768w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_1-300x150.png 300w\" sizes=\"auto, (max-width: 771px) 100vw, 771px\" \/><\/p>\n<p>\u91c7\u7528Rhino\u7ed3\u5408Grasshopper\u8fdb\u884c\u629b\u7269\u7ebf\u7ed8\u5236\u3002\u7531\u4e8eGrasshopper\u4f3c\u4e4e\u6ca1\u6709\u76f4\u63a5\u8fdb\u884c\u629b\u7269\u7ebf\u7ed8\u5236\u7684\u7535\u6c60(\u6d4b\u8bd5\u4e86interpolate\u4f3c\u4e4e\u4e0d\u5bf9\uff09\uff0c\u6240\u4ee5\u629b\u7269\u7ebf\u9700\u8981\u901a\u8fc7\u8ba1\u7b97\u65b9\u7a0b\u7684\u5f62\u5f0f\u8fdb\u884c\u7ed8\u5236\u3002<\/p>\n<p>\u629b\u7269\u7ebf\u7684\u57fa\u672c\u65b9\u7a0b\u4e3a y=ax^2+bx+c\uff0c\u5176\u4e2d\uff0ca\u3001b\u3001c\u5747\u4e3a\u5f85\u5b9a\u53c2\u6570\u3002\u901a\u8fc73\u4e2a\u70b9\u7684\u5750\u6807\uff0c\u53ef\u83b7\u5f97\u8fd9\u4e09\u4e2a\u53c2\u6570\u3002\u6b64\u5916\uff0c\u8fc73\u70b9\u4e5f\u53ef\u4ee5\u7ed8\u5236\u4e00\u6761\u5706\u5f27\uff0c\u987a\u5e26\u5bf9\u6bd4\u5706\u5f27 arc \u548c\u629b\u7269\u7ebf parabola\u7684\u5dee\u5f02\u3002<\/p>\n<p>\u4e0b\u56fe\u4e3a\u91c7\u7528Grasshopper\u8fdb\u884c\u5706\u5f27\u53ca\u629b\u7269\u7ebf\u7ed8\u5236\u7684\u811a\u672c\uff0c<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17046\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_2.gif\" alt=\"\" width=\"1318\" height=\"573\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_2.gif 1318w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_2-768x334.gif 768w\" sizes=\"auto, (max-width: 1318px) 100vw, 1318px\" \/><\/p>\n<p>\u901a\u8fc7\u62d6\u62c9Slider\u53ef\u4ee5\u63a7\u5236\u62f1\u7684\u8de8\u5ea6\u53ca\u9ad8\u5ea6\uff0c\u83b7\u5f97\u4e0d\u540c\u77e2\u8de8\u6bd4\u7684\u629b\u7269\u7ebf\u53ca\u5706\u5f27\u7684\u62f1\uff0c\u4e0b\u56fe\u4e3a\u8de8\u5ea6\/\u77e2\u9ad8 = 2.2857\u65f6\u5706\u5f27\u53ca\u629b\u7269\u7ebf\u7684\u5bf9\u6bd4\uff0c\u53ef\u4ee5\u770b\u51fa\u4e24\u4e2a\u66f2\u7ebf\u7684\u660e\u663e\u5dee\u5f02\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17047\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_3.gif\" alt=\"\" width=\"1064\" height=\"508\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_3.gif 1064w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_3-768x367.gif 768w\" sizes=\"auto, (max-width: 1064px) 100vw, 1064px\" \/><\/p>\n<p>\u4ee5\u4e0b\u5bf9\u6bd4\u4e0d\u540c\u8de8\/\u9ad8\u6bd4\u4e0b\uff0c\u5706\u5f27\u53ca\u629b\u7269\u7ebf\u7684\u5dee\u5f02<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17048\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_4.gif\" alt=\"\" width=\"1256\" height=\"468\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_4.gif 1256w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_4-768x286.gif 768w\" sizes=\"auto, (max-width: 1256px) 100vw, 1256px\" \/><\/p>\n<p>\u7531\u56fe\u53ef\u89c1\uff0c\u8de8\u9ad8\u6bd4\u8d8a\u5927\uff0c\u5706\u5f27\u53ca\u629b\u7269\u7ebf\u7684\u5dee\u5f02\u8d8a\u5c0f\uff0c\u5f53\u8de8\u9ad8\u6bd4\u57285\u5de6\u53f3\u65f6\uff0c\u4e24\u8005\u76f8\u5dee\u8f83\u5c0f\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6d4b\u7b97\u62f1\u7684\u53d7\u529b\uff0c\u5c06\u8de8\u9ad8\u6bd4\u4e3a2.2857\u7684\u4e00\u7ec4\u5706\u5f27\u53ca\u629b\u7269\u7ebf\u5bfc\u5165midas gen\u8fdb\u884c\u8ba1\u7b97\u3002<\/p>\n<p>\u4ee5\u4e0b\u8003\u86513\u652f\u5ea7\u6761\u4ef6\u4e0b\uff08\u652f\u5ea7\u56fa\u63a5\uff0c\u652f\u5ea7\u94f0\u63a5\uff0c\u4e09\u89d2\u62f1\uff1a\u652f\u5ea7\u94f0\u63a5\u53ca\u8de8\u4e2d\u94f0\u63a5\uff09\u629b\u7269\u7ebf\u62f1\u7684\u53d7\u529b\u3002\u7531\u56fe\u53ef\u89c1\uff0c\u5728\u627f\u53d7<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d<\/strong>\u4e0b\uff0c\u53ea\u6709\u4e09\u89d2\u62f1\u7684\u5f2f\u77e9\u4e3a0\uff0c\u5176\u4ed6\u652f\u5ea7\u6761\u4ef6\u4e0b\uff0c\u5f2f\u77e9\u4e0d\u4e3a\u96f6\u3002<\/p>\n<p>\u4ece\u8fd9\u4e2a\u4e5f\u53ef\u77e5\uff0c\u5408\u7406\u62f1\u8f74\u7ebf\u662f\u4e0e\u652f\u5ea7\u6761\u4ef6\u76f8\u5173\u7684\u3002\uff08<strong>\u7b80\u76f4\u662f\u5e9f\u8bdd\u3002\u3002\u3002\u3002\u3002\u3002<\/strong>\uff09<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17051\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_5.gif\" alt=\"\" width=\"736\" height=\"1093\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17052\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_6.gif\" alt=\"\" width=\"679\" height=\"1091\" \/><\/p>\n<p>\u6b64\u5916\u987a\u4fbf\u5bf9\u6bd4\u5728\u627f\u53d7<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d<\/strong>\u4e0b\uff0c\u629b\u7269\u7ebf\u62f1\u53ca\u5706\u5f27\u62f1\u7684\u53d7\u529b\u5dee\u5f02\u3002\u7531\u56fe\u53ef\u89c1\uff0c\u5706\u5f27\u62f1\u7684\u5f2f\u77e9\u8fdc\u5927\u4e8e\u629b\u7269\u7ebf\u62f1\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17053\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_7.gif\" alt=\"\" width=\"950\" height=\"789\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_7.gif 950w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_7-768x638.gif 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17054\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_8.gif\" alt=\"\" width=\"950\" height=\"744\" srcset=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_8.gif 950w, http:\/\/www.jdcui.com\/wp-content\/uploads\/2021\/12\/Arc_Parabola_8-768x601.gif 768w\" sizes=\"auto, (max-width: 950px) 100vw, 950px\" \/><\/p>\n<p>\u524d\u9762\u4f8b\u5b50\u6d4b\u8bd5\u4e2d\u63d0\u4e86\uff0c\u5408\u7406\u62f1\u8f74\u7ebf\u4e0e\u8fb9\u754c\u6761\u4ef6\u6709\u5173\uff0c\u5176\u5b9e\u5408\u7406\u62f1\u8f74\u7ebf\u662f\u5728\u7279\u5b9a\u7684\u8377\u8f7d\u548c\u8fb9\u754c\u6761\u4ef6\u4e0b\u63d0\u51fa\u6765\u7684\u3002\u629b\u7269\u7ebf\u4f5c\u4e3a\u5408\u7406\u62f1\u8f74\u7ebf\uff0c\u4e3b\u8981\u662f\u9002\u7528\u4e8e<strong>\u4e09\u94f0\u62f1<\/strong>\u5728<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d<\/strong>\u7684\u6761\u4ef6\u4e0b<strong>\u3002<\/strong>\u5982\u679c\u4e09\u94f0\u62f1\u8377\u8f7d\u4e0d\u662f<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d\uff0c<\/strong>\u90a3\u5408\u7406\u62f1\u8f74\u7ebf\u5c31\u4e0d\u662f\u629b\u7269\u7ebf\u4e86\u3002\u6700\u7ecf\u5178\u7684\u4f8b\u5b50\u662f\u5982\u679c\u8377\u8f7d\u4e0d\u662f<strong>\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d\uff0c<\/strong>\u800c\u662f\u81ea\u91cd\u4f5c\u7528\uff0c\u90a3\u4e48\u4e09\u94f0\u62f1\u7684\u5408\u7406\u62f1\u8f74\u7ebf\u5c31\u662f\u5012\u8fc7\u6765\u7684<strong>\u60ac\u94fe\u7ebf<\/strong>\u4e86\u3002<\/p>\n<hr \/>\n<p><center><strong><div  class=\"thumbs-rating-container\" id=\"thumbs-rating-17035\" data-content-id=\"17035\"><button class=\"thumbs-rating-up thumbs-rating-voted\" onclick=\"thumbs_rating_vote(17035, 1);\">Vote Up +11<\/button> <button class=\"thumbs-rating-down\" onclick=\"thumbs_rating_vote(17035, 2);\">Vote Down -0<\/button><span class=\"thumbs-rating-already-voted\">You already voted!<\/span><\/div><\/strong><\/center><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"text-align: left;\"><strong>\u76f8\u5173\u535a\u6587 (<span style=\"color: #000080;\"> Related Topics<\/span>)<\/strong><\/li>\n<\/ul>\n<p><strong>[01]\u00a0<a href=\"http:\/\/www.jdcui.com\/?p=11821\" target=\"_blank\" rel=\"noopener noreferrer\">[GRASSHOPPER] Grasshopper-Midas \u63a5\u53e3\u5f00\u53d1 [\u516c\u4f17\u53f7: \u7ed3\u6784\u4e4b\u65c5]<\/a><\/strong><\/p>\n<p><strong>[02]\u00a0<a href=\"http:\/\/www.jdcui.com\/?p=14191\" target=\"_blank\" rel=\"noopener noreferrer\">[\u53c2\u6570\u5316][Rhino][XTRACT] \u7528Rhino\u4e5f\u53ef\u4ee5\u73a9XTRACT\u622a\u9762\u5206\u6790<\/a><\/strong><\/p>\n<p><strong>[03]\u00a0<a title=\"[\u53c2\u6570\u5316][\u7b14\u8bb0] \u91c7\u5149\u9876\u53c2\u6570\u5316\u5efa\u6a21\u5206\u6790\u6848\u4f8b [Rhino\/Grasshopper\/Midas Gen]\" href=\"http:\/\/www.jdcui.com\/?p=15021\" target=\"_blank\" rel=\"noopener noreferrer\">[\u53c2\u6570\u5316][\u7b14\u8bb0] \u91c7\u5149\u9876\u53c2\u6570\u5316\u5efa\u6a21\u5206\u6790\u6848\u4f8b [Rhino\/Grasshopper\/Midas Gen]<\/a><\/strong><\/p>\n<p><strong>[04] <a title=\"[GRASSHOPPER] \u4f7f\u7528Karamba3D\u4f18\u5316\u5355\u5c42\u7f51\u58f3 [\u516c\u4f17\u53f7: \u7ed3\u6784\u4e4b\u65c5]\" href=\"http:\/\/www.jdcui.com\/?p=11970\" target=\"_blank\" rel=\"noopener\">[GRASSHOPPER] \u4f7f\u7528Karamba3D\u4f18\u5316\u5355\u5c42\u7f51\u58f3 [\u516c\u4f17\u53f7: \u7ed3\u6784\u4e4b\u65c5]<\/a><\/strong><\/p>\n<p><strong>[05] <a title=\"[Rhino][Grasshopper][\u7b14\u8bb0] \u5bf9\u70b9\u96c6\u5408\u6309\u5750\u6807\u6392\u5e8f ( Sort the Point Collection by Coordinates)\" href=\"http:\/\/www.jdcui.com\/?p=16940\" target=\"_blank\" rel=\"noopener\">[Rhino][Grasshopper][\u7b14\u8bb0] \u5bf9\u70b9\u96c6\u5408\u6309\u5750\u6807\u6392\u5e8f ( Sort the Point Collection by Coordinates)<\/a><\/strong><\/p>\n<p><strong>[06] <a title=\"[\u7b14\u8bb0][\u51e0\u4f55][Rhino] \u629b\u7269\u7ebf\u4e0e\u5408\u7406\u62f1\u8f74\u7ebf [Parabola and reasonable arch axis]\" href=\"http:\/\/www.jdcui.com\/?p=17035\" target=\"_blank\" rel=\"noopener\">[\u7b14\u8bb0][\u51e0\u4f55][Rhino] \u629b\u7269\u7ebf\u4e0e\u5408\u7406\u62f1\u8f74\u7ebf [Parabola and reasonable arch axis]<\/a><\/strong><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"text-align: left;\"><strong>\u516c\u4f17\u53f7 (<span style=\"color: #000080;\">\u00a0Wechat\u00a0Subscription<\/span>)<\/strong><\/li>\n<\/ul>\n<p><a href=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3636\" src=\"http:\/\/www.jdcui.com\/wp-content\/uploads\/2017\/01\/QRCODE.jpg\" alt=\"WeChat_QRCode\" width=\"250\" height=\"255\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><strong>\u6b22\u8fce\u5173\u6ce8\u00a0\u201c<span style=\"color: #ff00ff;\">\u7ed3\u6784\u4e4b\u65c5<\/span>\u201d\u00a0\u5fae\u4fe1\u516c\u4f17\u53f7<\/strong><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9e\u5e72\u3001\u5b9e\u8df5\u3001\u79ef\u7d2f\u3001\u601d\u8003\u3001\u521b\u65b0\u3002 \u6839\u636e\u7ed3\u6784\u529b\u5b66\u7684\u77e5\u8bc6\u53ef\u77e5\uff0c\u629b\u7269\u7ebf\u4e3a\u4e09\u94f0\u62f1\uff08Three hinged arch\uff09\u5728\u627f\u53d7\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d\u4e0b\u7684\u5408\u7406\u62f1\u8f74\u7ebf\uff0c\u5373 \u4e09\u94f0\u62f1 \u6309\u629b\u7269\u7ebf\u5e03\u7f6e\uff0c\u62f1\u5728\u6ee1\u8de8\u7ad6\u5411\u5747\u5e03\u8377\u8f7d\u4f5c\u7528\u4e0b\uff0c\u53ea\u53d7\u8f74\u529b\uff0c\u4e0d\u53d7\u5f2f\u77e9\u3002\u57fa\u672c\u7b80\u56fe\u5982\u4e0b\u56fe\u6240\u793a\u3002 \u91c7\u7528Rhino\u7ed3\u5408Grasshopper\u8fdb\u884c\u629b\u7269\u7ebf\u7ed8\u5236\u3002\u7531\u4e8eGrasshopper\u4f3c\u4e4e\u6ca1\u6709\u76f4\u63a5\u8fdb\u884c\u629b\u7269\u7ebf\u7ed8\u5236\u7684\u7535\u6c60(\u6d4b\u8bd5\u4e86interpolate\u4f3c\u4e4e\u4e0d\u5bf9\uff09\uff0c\u6240\u4ee5\u629b\u7269\u7ebf\u9700\u8981\u901a\u8fc7\u8ba1\u7b97\u65b9\u7a0b\u7684\u5f62\u5f0f\u8fdb\u884c\u7ed8\u5236\u3002 \u629b\u7269\u7ebf\u7684\u57fa\u672c\u65b9\u7a0b\u4e3a 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