{"id":111,"date":"2021-11-09T15:52:30","date_gmt":"2021-11-09T07:52:30","guid":{"rendered":"http:\/\/purplepoolobservatory.com\/?p=111"},"modified":"2021-12-03T08:52:30","modified_gmt":"2021-12-03T00:52:30","slug":"python-%e5%88%a4%e6%96%ad%e7%ba%bf%e6%ae%b5%e4%b8%8e%e5%a4%9a%e8%be%b9%e5%bd%a2%e7%9b%b8%e4%ba%a4","status":"publish","type":"post","link":"https:\/\/purplepoolobservatory.com\/?p=111","title":{"rendered":"python-\u5224\u65ad\u7ebf\u6bb5\u4e0e\u591a\u8fb9\u5f62\u76f8\u4ea4"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>import numpy as np\r\nimport matplotlib.pyplot as plt\r\nimport shapely.geometry\r\nimport descartes\r\n\r\ncircle = shapely.geometry.Point(5.0, 0.0).buffer(10.0)\r\nclip_poly = shapely.geometry.Polygon(&#91;&#91;-9.5, -2], &#91;2, 2], &#91;3, 4], &#91;-1, 3]])\r\nclipped_shape = circle.difference(clip_poly)\r\n\r\nline = shapely.geometry.LineString(&#91;&#91;-10, -5], &#91;15, 5]])\r\nline2 = shapely.geometry.LineString(&#91;&#91;-10, -5], &#91;-5, 0], &#91;2, 3]])\r\n\r\nprint 'Blue line intersects clipped shape:', line.intersects(clipped_shape)\r\nprint 'Green line intersects clipped shape:', line2.intersects(clipped_shape)\r\n\r\nfig = plt.figure()\r\nax = fig.add_subplot(111)\r\n\r\nax.plot(*np.array(line).T, color='blue', linewidth=3, solid_capstyle='round')\r\nax.plot(*np.array(line2).T, color='green', linewidth=3, solid_capstyle='round')\r\nax.add_patch(descartes.PolygonPatch(clipped_shape, fc='blue', alpha=0.5))\r\nax.axis('equal')\r\n\r\nplt.show()<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>Blue line intersects clipped shape: True\nGreen line intersects clipped shape: False<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"558\" height=\"432\" src=\"https:\/\/purplepoolobservatory.com\/wp-content\/uploads\/2021\/11\/QQ\u622a\u56fe20211109155204.png\" alt=\"\" class=\"wp-image-112\" srcset=\"https:\/\/purplepoolobservatory.com\/wp-content\/uploads\/2021\/11\/QQ\u622a\u56fe20211109155204.png 558w, https:\/\/purplepoolobservatory.com\/wp-content\/uploads\/2021\/11\/QQ\u622a\u56fe20211109155204-300x232.png 300w, https:\/\/purplepoolobservatory.com\/wp-content\/uploads\/2021\/11\/QQ\u622a\u56fe20211109155204-150x116.png 150w\" sizes=\"auto, (max-width: 558px) 85vw, 558px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[2],"tags":[6,7],"class_list":["post-111","post","type-post","status-publish","format-gallery","hentry","category-technology","tag-linux","tag-python","post_format-post-format-gallery"],"_links":{"self":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=111"}],"version-history":[{"count":1,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions"}],"predecessor-version":[{"id":113,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions\/113"}],"wp:attachment":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}