{"id":1182,"date":"2023-07-27T09:08:03","date_gmt":"2023-07-27T09:08:03","guid":{"rendered":"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/"},"modified":"2023-07-27T09:08:03","modified_gmt":"2023-07-27T09:08:03","slug":"kolczan-matplotlib","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/","title":{"rendered":"Jak utworzy\u0107 wykres ko\u0142czanu w matplotlib (z przyk\u0142adami)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Wykres drgaj\u0105cy<\/strong> to rodzaj wykresu, na kt\u00f3rym wy\u015bwietlane s\u0105 strza\u0142ki ze sk\u0142adowymi kierunkowymi U i V we wsp\u00f3\u0142rz\u0119dnych kartezja\u0144skich okre\u015blonych przez X i Y.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Mo\u017cemy \u0142atwo utworzy\u0107 wykres drga\u0144 w Matplotlib za pomoc\u0105 funkcji <strong>quiver()<\/strong> , kt\u00f3ra wykorzystuje nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>ko\u0142czan (x, y, u, v)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Z\u0142oto:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x:<\/strong> wsp\u00f3\u0142rz\u0119dne x lokalizacji strza\u0142ek<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>y:<\/strong> wsp\u00f3\u0142rz\u0119dne y lokalizacji strza\u0142ek<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>u:<\/strong> Sk\u0142adniki x wektor\u00f3w strza\u0142ek<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>v:<\/strong> Sk\u0142adniki y wektor\u00f3w strza\u0142ek<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">W tym samouczku przedstawiono kilka przyk\u0142ad\u00f3w praktycznego wykorzystania tej funkcji.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: rysowanie ko\u0142czanu za pomoc\u0105 pojedynczej strza\u0142ki<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wy\u015bwietli\u0107 wykres ko\u0142czanu za pomoc\u0105 pojedynczej strza\u0142ki:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#define plots<\/span>\nfig, ax = plt. <span style=\"color: #3366ff;\">subplots<\/span> ()\n\n<span style=\"color: #008080;\">#define coordinates and directions\n<\/span>x = 0\ny = 0\nu = 15\nv = 3\n\n<span style=\"color: #008080;\">#create quiver plot\n<\/span>ax. <span style=\"color: #3366ff;\">quiver<\/span> (x, y, u, v)\n\n<span style=\"color: #008080;\">#display quiver plot\n<\/span>plt. <span style=\"color: #3366ff;\">show<\/span> ()\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11778 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/carquois1.png\" alt=\"Wykres ko\u0142czanu w matplotlib\" width=\"398\" height=\"261\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: uk\u0142ad ko\u0142czanu z dwiema strza\u0142kami<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wy\u015bwietli\u0107 wykres ko\u0142czanu za pomoc\u0105 dw\u00f3ch strza\u0142ek:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#define plots<\/span>\nfig, ax = plt. <span style=\"color: #3366ff;\">subplots<\/span> ()\n\n<span style=\"color: #008080;\">#define coordinates and directions\n<\/span>x = [0, 0]\ny = [0, 0]\nu = [0, 1]\nv = [-2, 0]\n<span style=\"color: #008080;\">#create quiver plot\n<\/span>ax. <span style=\"color: #3366ff;\">quiver<\/span> (x, y, u, v, scale = <span style=\"color: #008000;\">10<\/span> )\n\n<span style=\"color: #008080;\">#display quiver plot\n<\/span>plt. <span style=\"color: #3366ff;\">show<\/span> ()<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11779 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/carquois3.png\" alt=\"Ko\u0142czan Pythona z dwiema strza\u0142kami\" width=\"409\" height=\"264\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Nale\u017cy pami\u0119ta\u0107, \u017ce argument <strong>skali<\/strong> skaluje strza\u0142ki tak, aby by\u0142y d\u0142u\u017csze, dzi\u0119ki czemu \u0142atwiej je zobaczy\u0107 na wykresie.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 3: dzia\u0142ka ko\u0142czanowa z siatk\u0105 siatkow\u0105<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wy\u015bwietli\u0107 wykres drgaj\u0105cy przy u\u017cyciu siatki:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n<span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\">#define plots<\/span>\nfig, ax = plt. <span style=\"color: #3366ff;\">subplots<\/span> ()\n\n<span style=\"color: #008080;\">#define coordinates and directions\n<\/span>x,y = np. <span style=\"color: #3366ff;\">meshgrid<\/span> (np. <span style=\"color: #3366ff;\">arange<\/span> (-2, 2, .1), np. <span style=\"color: #3366ff;\">arange<\/span> (-2, 2, .1))\nz = x*np. <span style=\"color: #3366ff;\">exp<\/span> (-x**2 - y**2)\nv, u = np. <span style=\"color: #3366ff;\">gradient<\/span> (z, .1, .1)\n\n<span style=\"color: #008080;\">#create quiver plot\n<\/span>ax. <span style=\"color: #3366ff;\">quiver<\/span> (x, y, u, v)\n\n<span style=\"color: #008080;\">#display quiver plot\n<\/span>plt. <span style=\"color: #3366ff;\">show<\/span> ()<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-11780 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/carquois4.png\" alt=\"Ko\u0142czan Matplotliba\" width=\"436\" height=\"283\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Pe\u0142n\u0105 dokumentacj\u0119 funkcji quiver() znajdziesz <a href=\"https:\/\/matplotlib.org\/3.3.2\/api\/_as_gen\/matplotlib.pyplot.quiver.html\" target=\"_blank\" rel=\"noopener noreferrer\">tutaj<\/a> .<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wykres drgaj\u0105cy to rodzaj wykresu, na kt\u00f3rym wy\u015bwietlane s\u0105 strza\u0142ki ze sk\u0142adowymi kierunkowymi U i V we wsp\u00f3\u0142rz\u0119dnych kartezja\u0144skich okre\u015blonych przez X i Y. Mo\u017cemy \u0142atwo utworzy\u0107 wykres drga\u0144 w Matplotlib za pomoc\u0105 funkcji quiver() , kt\u00f3ra wykorzystuje nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119: ko\u0142czan (x, y, u, v) Z\u0142oto: x: wsp\u00f3\u0142rz\u0119dne x lokalizacji strza\u0142ek y: wsp\u00f3\u0142rz\u0119dne y lokalizacji [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1182","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak utworzy\u0107 wykres ko\u0142czanu w Matplotlib (z przyk\u0142adami)<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak utworzy\u0107 wykres ko\u0142czanowy w Matplotlib, z kilkoma przyk\u0142adami.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak utworzy\u0107 wykres ko\u0142czanu w Matplotlib (z przyk\u0142adami)\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak utworzy\u0107 wykres ko\u0142czanowy w Matplotlib, z kilkoma przyk\u0142adami.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T09:08:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/carquois1.png\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/\",\"url\":\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/\",\"name\":\"Jak utworzy\u0107 wykres ko\u0142czanu w Matplotlib (z przyk\u0142adami)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-27T09:08:03+00:00\",\"dateModified\":\"2023-07-27T09:08:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak utworzy\u0107 wykres ko\u0142czanowy w Matplotlib, z kilkoma przyk\u0142adami.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/kolczan-matplotlib\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak utworzy\u0107 wykres ko\u0142czanu w matplotlib (z przyk\u0142adami)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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