{"id":11265,"date":"2023-07-20T09:00:00","date_gmt":"2023-07-20T07:00:00","guid":{"rendered":"https:\/\/www.sigterritoires.fr\/?p=11265"},"modified":"2023-07-26T21:32:44","modified_gmt":"2023-07-26T19:32:44","slug":"carregamento-de-dados-ign-france-hd-lidar-no-qgis","status":"publish","type":"post","link":"https:\/\/www.sigterritoires.fr\/index.php\/pt\/carregamento-de-dados-ign-france-hd-lidar-no-qgis\/","title":{"rendered":"Carregamento de dados IGN France HD Lidar no QGis"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Tutorial: HD LIDAR com QGIS 3.32<\/h2>\n\n\n\n<p>1- Descarregar os dados do IGN HD LIDAR e carreg\u00e1-los no QGis<\/p>\n\n\n\n<p> <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-prise-en-charge-des-contenus-embarques wp-block-embed-prise-en-charge-des-contenus-embarques wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"jetpack-video-wrapper\"><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/-w6vMwiFyPY?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/div>\n<\/div><figcaption class=\"wp-element-caption\">Veja este v\u00eddeo e muitos outros no nosso canal do Youtube : <a href=\"https:\/\/www.youtube.com\/@sigterritoires\">https:\/\/www.youtube.com\/@sigterritoires<\/a><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Descarregar os dados<\/h2>\n\n\n\n<p>Pode descarregar os dados do IGN Lidar a partir do seguinte endere\u00e7o: <a href=\"https:\/\/geoservices.ign.fr\/lidarhd\">https:\/\/geoservices.ign.fr\/lidarhd<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"411\" data-attachment-id=\"11240\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-104000\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?fit=1148%2C738&amp;ssl=1\" data-orig-size=\"1148,738\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-104000\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?fit=640%2C411&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?resize=640%2C411&#038;ssl=1\" alt=\"p\u00e1gina geoservices.ign.fr\/lidarhd\" class=\"wp-image-11240\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?resize=1024%2C658&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?resize=300%2C193&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?resize=768%2C494&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?resize=150%2C96&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?resize=233%2C150&amp;ssl=1 233w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104000.png?w=1148&amp;ssl=1 1148w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"507\" height=\"559\" data-attachment-id=\"11241\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-104132\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?fit=507%2C559&amp;ssl=1\" data-orig-size=\"507,559\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-104132\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?fit=507%2C559&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?resize=507%2C559&#038;ssl=1\" alt=\"ign escolha do tipo de dados a descarregar\" class=\"wp-image-11241\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?w=507&amp;ssl=1 507w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?resize=272%2C300&amp;ssl=1 272w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-104132.png?resize=136%2C150&amp;ssl=1 136w\" sizes=\"auto, (max-width: 507px) 100vw, 507px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>\u00c0 direita, encontrar\u00e1 uma liga\u00e7\u00e3o para os produtos LIDAR com duas op\u00e7\u00f5es:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dados classificados<\/li>\n\n\n\n<li>Dados em bruto<\/li>\n<\/ul>\n\n\n\n<p>Os <strong><em>dados em bruto<\/em><\/strong>, como o nome sugere, cont\u00eam todos os pontos LIDAR com uma \u00fanica categoria: <strong><em>n\u00e3o classificados<\/em><\/strong>.<\/p>\n\n\n\n<p>Os ficheiros de <strong><em>dados classificados<\/em><\/strong>, por outro lado, foram submetidos a um processo de classifica\u00e7\u00e3o que atribui um valor de classe a cada ponto da nuvem de pontos. Esta classe indica o tipo de entidade a que o ponto corresponde.<\/p>\n\n\n\n<p>A classifica\u00e7\u00e3o utilizada pelo IGN \u00e9 a seguinte:<\/p>\n\n\n\n<p>Classifica\u00e7\u00e3o da nuvem: 11 classes de acordo com as especifica\u00e7\u00f5es da ASPRS.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e3o classificado (1)<\/li>\n\n\n\n<li>Solo (2)<\/li>\n\n\n\n<li>Vegeta\u00e7\u00e3o baixa (3) 0-50cm<\/li>\n\n\n\n<li>Vegeta\u00e7\u00e3o m\u00e9dia (4) 50cm-1.50m<\/li>\n\n\n\n<li>Vegeta\u00e7\u00e3o alta (5) +1,50m<\/li>\n\n\n\n<li>Edif\u00edcio (6)<\/li>\n\n\n\n<li>\u00c1gua (9)<\/li>\n\n\n\n<li>Ponte (17)<\/li>\n\n\n\n<li>Sobrecarga perene (64)<\/li>\n\n\n\n<li>Artefactos (65)<\/li>\n\n\n\n<li>Pontos virtuais (66)<br>NB: No caso dos dados HD LiDAR em bruto, o atributo Class foi mantido, mas o valor predefinido \u00e9 definido como Unclassified (1).<br>O valor predefinido \u00e9 definido como N\u00e3o classificado (1).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Descarregar dados em bruto<\/h3>\n\n\n\n<p>Clique em Dados em bruto para visualizar um mapa que mostra as \u00e1reas cobertas pelo HD LIDAR.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"376\" data-attachment-id=\"11243\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-105219\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?fit=1117%2C656&amp;ssl=1\" data-orig-size=\"1117,656\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-105219\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?fit=640%2C376&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?resize=640%2C376&#038;ssl=1\" alt=\"ign lidar descarregar dados brutos do mapa\" class=\"wp-image-11243\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?resize=1024%2C601&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?resize=300%2C176&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?resize=768%2C451&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?resize=150%2C88&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?resize=250%2C147&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105219.png?w=1117&amp;ssl=1 1117w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Para determinar quais os dados a carregar, fa\u00e7a zoom na sua \u00e1rea de interesse e clique no mosaico que pretende. A mensagem \u00e0 direita do mapa ser\u00e1 alterada para permitir o descarregamento do mosaico escolhido.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"363\" data-attachment-id=\"11244\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-105633\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?fit=1153%2C653&amp;ssl=1\" data-orig-size=\"1153,653\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-105633\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?fit=640%2C363&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?resize=640%2C363&#038;ssl=1\" alt=\"ign sele\u00e7\u00e3o do mosaico lidar para descarregar dados em bruto\" class=\"wp-image-11244\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?resize=1024%2C580&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?resize=300%2C170&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?resize=768%2C435&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?resize=150%2C85&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?resize=250%2C142&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-105633.png?w=1153&amp;ssl=1 1153w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>O resultado do download \u00e9 um ficheiro 7z comprimido. No seu interior, encontrar\u00e1 um diret\u00f3rio que cont\u00e9m quatro semis de nuvens de pontos, em formato laz.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"158\" data-attachment-id=\"11245\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-110107\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?fit=2855%2C705&amp;ssl=1\" data-orig-size=\"2855,705\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-110107\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?fit=640%2C158&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=640%2C158&#038;ssl=1\" alt=\"ficheiro de dados em bruto descarregado de lidar ign\" class=\"wp-image-11245\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=1024%2C253&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=300%2C74&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=768%2C190&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=1536%2C379&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=2048%2C506&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=150%2C37&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?resize=250%2C62&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110107.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Descarregar dados classificados<\/h3>\n\n\n\n<p>Clique em Dados classificados para visualizar um mapa que mostra as \u00e1reas cobertas pelo LIDAR.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"358\" data-attachment-id=\"11246\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-110823\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?fit=1166%2C653&amp;ssl=1\" data-orig-size=\"1166,653\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-110823\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?fit=640%2C358&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?resize=640%2C358&#038;ssl=1\" alt=\"lidar ign descarregar dados classificados do mapa\" class=\"wp-image-11246\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?resize=1024%2C573&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?resize=300%2C168&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?resize=768%2C430&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?resize=250%2C140&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-110823.png?w=1166&amp;ssl=1 1166w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Para determinar quais os dados a descarregar, fa\u00e7a zoom na sua \u00e1rea de interesse e clique no mosaico que pretende. A mensagem \u00e0 direita do mapa ser\u00e1 alterada para permitir o descarregamento do mosaico escolhido.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"362\" data-attachment-id=\"11248\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-111034-1\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?fit=1141%2C645&amp;ssl=1\" data-orig-size=\"1141,645\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-111034-1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?fit=640%2C362&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?resize=640%2C362&#038;ssl=1\" alt=\"ign sele\u00e7\u00e3o de mosaico lidar para carregar dados classificados\" class=\"wp-image-11248\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?resize=1024%2C579&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?resize=300%2C170&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?resize=768%2C434&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?resize=150%2C85&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?resize=250%2C141&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111034-1.png?w=1141&amp;ssl=1 1141w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>O resultado do download \u00e9 um ficheiro com um \u00fanico conjunto de pontos no formato copc.laz.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"181\" data-attachment-id=\"11249\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/capture-decran-2023-07-14-111306\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?fit=758%2C214&amp;ssl=1\" data-orig-size=\"758,214\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Capture-decran-2023-07-14-111306\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?fit=640%2C181&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?resize=640%2C181&#038;ssl=1\" alt=\"descarregar ficheiro de dados confidenciais lidar ign\" class=\"wp-image-11249\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?w=758&amp;ssl=1 758w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?resize=300%2C85&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?resize=150%2C42&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/Capture-decran-2023-07-14-111306.png?resize=250%2C71&amp;ssl=1 250w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Formatos de ficheiros de nuvens de pontos<\/h2>\n\n\n\n<p>O <a href=\"https:\/\/en.wikipedia.org\/wiki\/LAS_file_format\" title=\"formato LAS \"><strong><em>formato LAS<\/em><\/strong> <\/a>(LASer) \u00e9 um formato de ficheiro concebido para o interc\u00e2mbio e arquivo de dados de nuvens de pontos lidar. \u00c9 um formato bin\u00e1rio aberto especificado pela Sociedade Americana de Fotogrametria e Dete\u00e7\u00e3o Remota (ASPRS). O formato \u00e9 amplamente utilizado e considerado um padr\u00e3o da ind\u00fastria para dados lidar.<\/p>\n\n\n\n<p>Um <strong><em>ficheiro LAZ<\/em><\/strong> \u00e9 um ficheiro .LAS comprimido. Foi comprimido para que possa ser mais facilmente armazenado e partilhado com outros. Os ficheiros LAZ t\u00eam, normalmente, menos de 20% do tamanho do ficheiro LAS a partir do qual foram criados.<\/p>\n\n\n\n<p><strong><em>Ficheiros Copc<\/em><\/strong>: Os dados de nuvens de pontos em formatos comummente utilizados, como o LAS, s\u00e3o conjuntos de pontos bastante simples que n\u00e3o est\u00e3o associados a qualquer estrutura de dados de indexa\u00e7\u00e3o e a ordem dos pontos pode ser arbitr\u00e1ria. Como resultado, essa estrutura de dados de indexa\u00e7\u00e3o tem de ser constru\u00edda quando estes ficheiros s\u00e3o abertos para os renderizar. Como parte do processo de indexa\u00e7\u00e3o, os pontos t\u00eam de ser reorganizados para que possam ser acedidos rapidamente durante a renderiza\u00e7\u00e3o. Quando a indexa\u00e7\u00e3o estiver conclu\u00edda, temos uma estrutura de dados em forma de \u00e1rvore em que cada n\u00f3 cont\u00e9m um subconjunto da nuvem de pontos.<\/p>\n\n\n\n<p>Os \u00edndices copc correspondem a <strong><em><a href=\"https:\/\/fr.wikipedia.org\/wiki\/Octree\" title=\"octrees\">octrees<\/a><\/em><\/strong>: \u00e1rvores com sistematicamente oito n\u00f3s filhos.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"344\" data-attachment-id=\"11251\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/600px-octree2-svg\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?fit=600%2C344&amp;ssl=1\" data-orig-size=\"600,344\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"600px-Octree2.svg\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?fit=600%2C344&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?resize=600%2C344&#038;ssl=1\" alt=\"cubo octree\" class=\"wp-image-11251\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?w=600&amp;ssl=1 600w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?resize=300%2C172&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?resize=150%2C86&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/600px-Octree2.svg.png?resize=250%2C143&amp;ssl=1 250w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<p>Este tipo de \u00e1rvore corresponde bem aos objectos 3D: quando temos um cubo, que representa o nosso universo 3D, determinamos um ponto central a partir do qual podemos dividir o nosso cubo em 8 cubos, podendo cada um destes cubos ser dividido em 8 cubos e assim sucessivamente.<br>Trata-se de uma octree e \u00e9 o formato de ficheiro indexado utilizado pelo QGis para os ficheiros LIDAR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Carregamento de nuvens de pontos no QGis<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Carregamento de dados classificados<\/h3>\n\n\n\n<p>Este \u00e9 o caso mais simples. Os dados est\u00e3o em ficheiros individuais com a extens\u00e3o .copc.laz .<\/p>\n\n\n\n<p>Isto significa que os ficheiros est\u00e3o comprimidos mas j\u00e1 t\u00eam um \u00edndice octree.<\/p>\n\n\n\n<p>Pode carregar estes dados diretamente, clicando e arrastando no painel de camadas:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" data-attachment-id=\"11254\" data-permalink=\"https:\/\/www.sigterritoires.fr\/chargement_donnees_classees_ign\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?fit=3842%2C2160&amp;ssl=1\" data-orig-size=\"3842,2160\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"chargement_donnees_classees_ign\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?fit=640%2C360&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=640%2C360&#038;ssl=1\" alt=\"visualizar dados classificados qgis lidar ign\" class=\"wp-image-11254\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=2048%2C1151&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?resize=250%2C141&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_classees_ign.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>A simbologia de visualiza\u00e7\u00e3o \u00e9 configurada diretamente na op\u00e7\u00e3o \u00ab\u00a0classifica\u00e7\u00e3o\u00a0\u00bb e pode ver os pontos com a simbologia correspondente.<\/p>\n\n\n\n<p>Quando se v\u00ea a extens\u00e3o .copc num ficheiro com outra extens\u00e3o .las ou .laz, o ficheiro \u00e9 carregado direta e instantaneamente.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Carregamento de dados brutos<\/h3>\n\n\n\n<p>Antes de poder carregar este tipo de dados, \u00e9 necess\u00e1rio descomprimir o ficheiro 7z descarregado. Uma vez descompactado, ter\u00e1 quatro semis de pontos no novo diret\u00f3rio:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"195\" data-attachment-id=\"11255\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/decompression_donnees_brutes_ign\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?fit=907%2C277&amp;ssl=1\" data-orig-size=\"907,277\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"decompression_donnees_brutes_ign\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?fit=640%2C195&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?resize=640%2C195&#038;ssl=1\" alt=\"descompress\u00e3o de dados brutos lidar ign\" class=\"wp-image-11255\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?w=907&amp;ssl=1 907w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?resize=300%2C92&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?resize=768%2C235&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?resize=150%2C46&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/decompression_donnees_brutes_ign.png?resize=250%2C76&amp;ssl=1 250w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Os ficheiros de dados brutos est\u00e3o no formato .laz, mas n\u00e3o t\u00eam \u00edndice (.copc).<\/p>\n\n\n\n<p>Quando carrega um destes ficheiros no QGis, aparece um ecr\u00e3 como este:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" data-attachment-id=\"11256\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/chargement_donnees_brutes_ign\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?fit=3842%2C2160&amp;ssl=1\" data-orig-size=\"3842,2160\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"chargement_donnees_brutes_ign\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?fit=640%2C360&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=640%2C360&#038;ssl=1\" alt=\"qgis display limites lidar ign dados em bruto \" class=\"wp-image-11256\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=2048%2C1151&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?resize=250%2C141&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/chargement_donnees_brutes_ign.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Ver\u00e1 imediatamente o quadro de dados e uma barra de deslocamento na parte inferior da janela. Esta barra indica o progresso efectuado na cria\u00e7\u00e3o do \u00edndice copc para a nuvem de pontos. S\u00f3 quando este processo estiver conclu\u00eddo \u00e9 que os pontos ser\u00e3o apresentados:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" data-attachment-id=\"11258\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/points_donnees_brutes_ign-1\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?fit=3842%2C2160&amp;ssl=1\" data-orig-size=\"3842,2160\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"points_donnees_brutes_ign-1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?fit=640%2C360&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=640%2C360&#038;ssl=1\" alt=\"visualizar dados brutos qgis lidar ign\" class=\"wp-image-11258\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=2048%2C1151&amp;ssl=1 2048w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?resize=250%2C141&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Verificar\u00e1 ent\u00e3o que foi criado um novo ficheiro com o mesmo nome mas com a extens\u00e3o .copc.<\/p>\n\n\n\n<p>Este \u00e9 o ficheiro utilizado pelo QGis. Pode manter o ficheiro original ou apag\u00e1-lo, mas o ficheiro original deixa de ser \u00fatil ao QGis. Se o voltar a carregar no QGis, ser\u00e1 carregado o ficheiro copc.<\/p>\n\n\n\n<p>Por defeito, a simbologia est\u00e1 definida para a op\u00e7\u00e3o \u00ab\u00a0Atributo por rampa\u00a0\u00bb e apresenta valores Z.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Simbologia QGis para nuvens de pontos<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"256\" data-attachment-id=\"11259\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/option_symbologie_qgis_lidar\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?fit=1995%2C796&amp;ssl=1\" data-orig-size=\"1995,796\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"option_symbologie_qgis_lidar\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?fit=640%2C256&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=640%2C256&#038;ssl=1\" alt=\"tipos de simbologia qgis nuvens de pontos\" class=\"wp-image-11259\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=1024%2C409&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=300%2C120&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=768%2C306&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=1536%2C613&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=150%2C60&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?resize=250%2C100&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?w=1995&amp;ssl=1 1995w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/option_symbologie_qgis_lidar.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Existem quatro tipos de simbologia dispon\u00edveis para as nuvens de pontos.<\/p>\n\n\n\n<p>O primeiro \u00e9 \u00ab\u00a0Apenas direito de passagem\u00a0\u00bb, que permite trabalhar com um grande n\u00famero de nuvens de pontos sem sobrecarregar os tempos de visualiza\u00e7\u00e3o.<\/p>\n\n\n\n<p>Os outros tr\u00eas tipos de visualiza\u00e7\u00e3o referem-se aos tr\u00eas principais tipos de dados presentes nos pontos LIDAR:<\/p>\n\n\n\n<p>Atributos de posi\u00e7\u00e3o e de sinal<\/p>\n\n\n\n<p>Valores RGB atribu\u00eddos aos pontos a posteriori<\/p>\n\n\n\n<p>Os resultados da classifica\u00e7\u00e3o dos pontos.<\/p>\n\n\n\n<p>Se selecionar Atributo por rampa, ver\u00e1 a lista de atributos dispon\u00edveis:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"279\" data-attachment-id=\"11260\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/chargement-des-donnees-lidar-hd-ign-dans-qgis\/attributs_points_lidar\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?fit=1994%2C871&amp;ssl=1\" data-orig-size=\"1994,871\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"attributs_points_lidar\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?fit=640%2C279&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=640%2C279&#038;ssl=1\" alt=\"atributos simbologia nuvem de pontos lidar\" class=\"wp-image-11260\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=1024%2C447&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=300%2C131&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=768%2C335&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=1536%2C671&amp;ssl=1 1536w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=150%2C66&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?resize=250%2C109&amp;ssl=1 250w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?w=1994&amp;ssl=1 1994w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/attributs_points_lidar.png?w=1920&amp;ssl=1 1920w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p>Nota: ver\u00e1 que a classifica\u00e7\u00e3o \u00e9 um atributo da nuvem de pontos. Se selecionar Atributo por rampa e classifica\u00e7\u00e3o, poder\u00e1 atribuir a sua pr\u00f3pria rampa de cores \u00e0 classifica\u00e7\u00e3o. No entanto, se selecionar a op\u00e7\u00e3o Classifica\u00e7\u00e3o, as cores e as etiquetas predefinidas ser\u00e3o padr\u00e3o.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tutorial: HD LIDAR com QGIS 3.32 1- Descarregar os dados do IGN HD LIDAR e carreg\u00e1-los no QGis Descarregar os dados Pode descarregar os dados do IGN Lidar a partir do seguinte endere\u00e7o: https:\/\/geoservices.ign.fr\/lidarhd. \u00c0 direita,&hellip;<\/p>\n","protected":false},"author":1,"featured_media":11258,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"give_campaign_id":0,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2426],"tags":[2521,2555,2519,2160],"class_list":["post-11265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lidar-pt","tag-carregamento","tag-dados-lidar","tag-ign","tag-qgis-pt"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2023\/07\/points_donnees_brutes_ign-1.png?fit=3842%2C2160&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p6XU0A-2VH","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/11265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/comments?post=11265"}],"version-history":[{"count":0,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/11265\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media\/11258"}],"wp:attachment":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media?parent=11265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/categories?post=11265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/tags?post=11265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}