{"id":13159,"date":"2022-11-29T17:54:36","date_gmt":"2022-11-29T08:54:36","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=13159"},"modified":"2022-11-30T12:17:14","modified_gmt":"2022-11-30T03:17:14","slug":"pyqgis%eb%a5%bc-%ec%9d%b4%ec%9a%a9%ed%95%9c-%eb%b2%a1%ed%84%b0-%eb%8d%b0%ec%9d%b4%ed%84%b0-%ec%b2%98%eb%a6%ac-10-%eb%b2%84%ed%8d%bcbuffer-%ec%97%b0%ec%82%b0","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=13159","title":{"rendered":"pyQGIS\ub97c \uc774\uc6a9\ud55c \ubca1\ud130 \ub370\uc774\ud130 \ucc98\ub9ac 10 : \ubc84\ud37c(Buffer) \uc5f0\uc0b0"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"745\" height=\"419\" src=\"https:\/\/www.youtube.com\/embed\/NFjDoJ67Djk\" title=\"pyQGIS\ub97c \uc774\uc6a9\ud55c \ubca1\ud130 \ub370\uc774\ud130 \ucc98\ub9ac: 10) \uc9c0\uc624\uba54\ud2b8\ub9ac \uacf5\uac04\uc5f0\uc0b0 (buffer)\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>\uc9c0\uc624\uba54\ud2b8\ub9ac\uc5d0 \ub300\ud55c \uacf5\uac04 \uc5f0\uc0b0\uc744 \uacf5\uac04 \ubd84\uc11d\uc744 \uc704\ud574 \ud65c\uc6a9\ud560 \uc218 \uc788\ub294\ub370 \uadf8 \uc5f0\uc0b0 \uc911 \ubc84\ud37c \uc5f0\uc0b0\uc5d0 \ub300\ud55c \ucf54\ub4dc\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \uba3c\uc800 \ub808\uc774\uc5b4\ub97c \ucd94\uac00\ud558\uace0 RN\uc774\ub77c\ub294 \ud544\ub4dc\uc758 \uac12\uc774 &#8220;\ub85c&#8221;\ub85c \ub05d\ub098\ub294 \ud53c\uccd0\ub97c \uc120\ud0dd\ud558\uace0 \uc120\ud0dd\ub41c \ud53c\uccd0\uc758 \uc9c0\uc624\uba54\ud2b8\ub9ac\uc5d0 \ub300\ud574 \ubc84\ud37c \uc5f0\uc0b0\uc744 \uc218\ud589\ud55c \ub4a4 \uadf8 \uacb0\uacfc\ub97c \ub2e4\ub978 SHP \ud30c\uc77c\uc5d0 \uc800\uc7a5\ud558\ub294 \ucf54\ub4dc\ub97c \uc791\uc131\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uba3c\uc800 \ub808\uc774\uc5b4\ub97c \ucd94\uac00\ud558\uace0 RN \ud544\ub4dc\uac12\uc774 &#8220;\ub85c&#8221;\ub85c \ub05d\ub098\ub294 \ud53c\uccd0\ub97c \uc120\ud0dd\ud558\ub294 \ucf54\ub4dc\ub97c \ub2e4\uc74c\ucc98\ub7fc \uc791\uc131\ud569\ub2c8\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">\r\nQgsProject.instance().removeAllMapLayers()\r\nlayer = QgsVectorLayer(\"D:\/__Data__\/\uc138\uc885\ud2b9\ubcc4\uc790\uce58\uc2dc_36000\/TL_SPRD_MANAGE.shp\", \"TL_SPRD_MANAGE\")\r\nQgsProject.instance().addMapLayers([layer])\r\nlayer.selectByExpression('\"RN\" like \\'%\ub85c\\'')\r\n<\/pre>\n<p>\ubc84\ud37c \uc5f0\uc0b0 \uacb0\uacfc\ub97c \uc800\uc7a5\ud560 SHP \ud30c\uc77c \uc791\uc131\uc790(Writer)\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">\r\nfields = layer.fields()\r\nfileName = \"D:\/__Data__\/buffer.shp\"\r\nwriter = QgsVectorFileWriter(\r\n    fileName,\r\n    \"utf-8\", \r\n    fields,\r\n    QgsWkbTypes.Polygon,\r\n    layer.sourceCrs(),\r\n    \"ESRI Shapefile\"\r\n)\r\n<\/pre>\n<p>\uc774\uc81c \uc120\ud0dd\ub41c \ud53c\uccd0\ub97c \ud558\ub098\uc529 \uc21c\ud68c\ud558\uba74\uc11c \ubc84\ud37c \uc5f0\uc0b0\uc744 \uc218\ud589\ud558\uace0 \uadf8 \uacb0\uacfc\ub97c \uc0c8\ub85c\uc6b4 SHP \ud30c\uc77c\uc5d0 \uae30\ub85d\ud569\ub2c8\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">\r\ndist = 100\r\nfeatures = layer.selectedFeatures()\r\nfor feat in features:\r\n    geom = feat.geometry()\r\n    buff = geom.buffer(dist, 8)\r\n    feat.setGeometry(buff)\r\n    writer.addFeature(feat)\r\n\r\ndel(writer) # \uc0c8\ub85c\uc6b4 SHP \ud30c\uc77c \ub2eb\uae30\r\n<\/pre>\n<p>\uc0c8\ub85c\uc6b4 SHP \ud30c\uc77c\uc744 \ub808\uc774\uc5b4\ub85c \ucd94\uac00\ud558\ub294 \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\">\r\nlayer = QgsVectorLayer(fileName, \"\uc0c8\ub85c\uc6b4 \ub808\uc774\uc5b4\", \"ogr\")\r\nQgsProject.instance().addMapLayers([layer])\r\n<\/pre>\n<p>\uc2e4\ud589 \uacb0\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.gisdeveloper.co.kr\/wp-content\/uploads\/2022\/11\/pyQGIS_buffer.jpg\" alt=\"\" width=\"1182\" height=\"835\" class=\"alignnone size-full wp-image-13163\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc9c0\uc624\uba54\ud2b8\ub9ac\uc5d0 \ub300\ud55c \uacf5\uac04 \uc5f0\uc0b0\uc744 \uacf5\uac04 \ubd84\uc11d\uc744 \uc704\ud574 \ud65c\uc6a9\ud560 \uc218 \uc788\ub294\ub370 \uadf8 \uc5f0\uc0b0 \uc911 \ubc84\ud37c \uc5f0\uc0b0\uc5d0 \ub300\ud55c \ucf54\ub4dc\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \uba3c\uc800 \ub808\uc774\uc5b4\ub97c \ucd94\uac00\ud558\uace0 RN\uc774\ub77c\ub294 \ud544\ub4dc\uc758 \uac12\uc774 &#8220;\ub85c&#8221;\ub85c \ub05d\ub098\ub294 \ud53c\uccd0\ub97c \uc120\ud0dd\ud558\uace0 \uc120\ud0dd\ub41c \ud53c\uccd0\uc758 \uc9c0\uc624\uba54\ud2b8\ub9ac\uc5d0 \ub300\ud574 \ubc84\ud37c \uc5f0\uc0b0\uc744 \uc218\ud589\ud55c \ub4a4 \uadf8 \uacb0\uacfc\ub97c \ub2e4\ub978 SHP \ud30c\uc77c\uc5d0 \uc800\uc7a5\ud558\ub294 \ucf54\ub4dc\ub97c \uc791\uc131\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uba3c\uc800 \ub808\uc774\uc5b4\ub97c \ucd94\uac00\ud558\uace0 RN \ud544\ub4dc\uac12\uc774 &#8220;\ub85c&#8221;\ub85c \ub05d\ub098\ub294 \ud53c\uccd0\ub97c \uc120\ud0dd\ud558\ub294 \ucf54\ub4dc\ub97c &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=13159\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;pyQGIS\ub97c \uc774\uc6a9\ud55c \ubca1\ud130 \ub370\uc774\ud130 \ucc98\ub9ac 10 : \ubc84\ud37c(Buffer) \uc5f0\uc0b0&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146],"tags":[],"class_list":["post-13159","post","type-post","status-publish","format-standard","hentry","category-pyqgis"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/13159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13159"}],"version-history":[{"count":5,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/13159\/revisions"}],"predecessor-version":[{"id":13205,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/13159\/revisions\/13205"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13159"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}