{"id":4149,"date":"2017-07-03T12:11:04","date_gmt":"2017-07-03T10:11:04","guid":{"rendered":"http:\/\/www.sigterritoires.fr\/?p=4149"},"modified":"2023-06-05T10:48:06","modified_gmt":"2023-06-05T08:48:06","slug":"faire-une-carte-topographique-avec-qgis","status":"publish","type":"post","link":"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/","title":{"rendered":"Faire une carte topographique avec QGis"},"content":{"rendered":"\n<div class='stb-container stb-style-warning'><div class='stb-caption'><div class='stb-logo'><img class='stb-logo__image' src='data:image\/png;base64,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' alt='img'\/><\/div><div class='stb-caption-content'><\/div><div class='stb-tool'><\/div><\/div><div class='stb-content'>Cet article concerne une version obsol\u00e8te de QGis (2.18). Vous trouverez la derni\u00e8re version de ce billet (Version 3.30) <a href=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis-3-30\/\" title=\"\">ici<\/a>.<\/div><\/div>\n\n\n\n<p>A partir du projet SRTM on dispose aujourd&rsquo;hui d&rsquo;une couverture mondiale de donn\u00e9es d&rsquo;\u00e9l\u00e9vation de terrain. Il est devenu tr\u00e8s simple de r\u00e9aliser ses propres cartes topographiques avec QGis.<\/p>\n\n\n\n<p>Nous verrons ici:<\/p>\n\n\n\n<p>-comment t\u00e9l\u00e9charger les donn\u00e9es d&rsquo;\u00e9l\u00e9vation pour la zone qui nous int\u00e9resse<\/p>\n\n\n\n<p>-comment mettre en forme le style d&rsquo;affichage pour qu&rsquo;il corresponde aux standards des cartes topographiques<\/p>\n\n\n\n<p>-comment accentuer la visualisation gr\u00e2ce \u00e0 une couche de type \u00ab\u00a0ombrage\u00a0\u00bb<\/p>\n\n\n\n<p>-et finalement comment g\u00e9n\u00e9rer les contours (courbes de niveau)<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">T\u00e9l\u00e9charger les donn\u00e9es d&rsquo;\u00e9l\u00e9vation<\/h2>\n\n\n\n<p>Pour t\u00e9l\u00e9charger les donn\u00e9es d&rsquo;\u00e9l\u00e9vation de votre zone d&rsquo;int\u00e9r\u00eat, allez sur la page <a href=\"http:\/\/viewfinderpanoramas.org\/dem3.html\">http:\/\/viewfinderpanoramas.org\/dem3.html<\/a><\/p>\n\n\n\n<p>Cette vid\u00e9o vous montre le d\u00e9roulement du t\u00e9l\u00e9chargement.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 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\/0j3e7bgDnx0?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><\/figure>\n\n\n\n<p>Les donn\u00e9es disponibles partout correspondent \u00e0 une d\u00e9finition de 3&Prime; d&rsquo;arc, environ 75m. Chaque pixel de votre MNT fera donc cette taille. Pour que le MNT et la carte correspondante soient corrects, il faut travailler avec une zone d&rsquo;environ une quinzaine de kilom\u00e8tres de large. Pour des zones plus restreintes, la pixellisation devient visible et la qualit\u00e9 de la <a href=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis-3-30\/\">carte topographique<\/a> se ressent.<\/p>\n\n\n\n<p>Les tuiles t\u00e9l\u00e9charg\u00e9es font une taille d&rsquo;un degr\u00e9 par un degr\u00e9 et sont au format<em><strong> hgt.<\/strong><\/em><\/p>\n\n\n\n<p>Ce format est directement lisible par QGis. Vous pouvez donc charger les tuiles en utilisant l&rsquo;ajout de raster \u00e0 la fen\u00eatre cartographique.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"414\" data-attachment-id=\"4155\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac1\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?fit=1571%2C1017&amp;ssl=1\" data-orig-size=\"1571,1017\" 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=\"rac1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?fit=640%2C414&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?resize=640%2C414\" alt=\"\" class=\"wp-image-4155\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?w=1571&amp;ssl=1 1571w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?resize=300%2C194&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?resize=768%2C497&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?resize=1024%2C663&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?resize=1200%2C777&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac1.png?w=1280&amp;ssl=1 1280w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Mettre en forme le style d&rsquo;affichage<\/h2>\n\n\n\n<p>Par d\u00e9faut, le raster est affich\u00e9 en nuances de gris. Il est donc n\u00e9cessaire d&rsquo;appliquer une rampe de couleur adapt\u00e9e qui accentue la topographie. Bien qu&rsquo;il soit possible de cr\u00e9er votre propre rampe de couleurs ou d&rsquo;utiliser une des rampes de couleurs fournies par QGIS, des rampes de couleurs de qualit\u00e9 sup\u00e9rieure peuvent \u00eatre t\u00e9l\u00e9charg\u00e9es \u00e0 l&rsquo;aide du plugin <em><strong>Color Ramp Manager<\/strong><\/em>.<\/p>\n\n\n\n<p>Pour l&rsquo;installer, allez dans le menu <em><strong>Extensions -&gt; Installer\/G\u00e9rer les extensions<\/strong><\/em>, s\u00e9lectionnez le plugin <em><strong>Color Ramp Manager<\/strong><\/em> et cliquez sur <em><strong>Installer l&rsquo;extension. <\/strong><\/em>Vous aurez un nouvel outil ajout\u00e9 dans votre barre d&rsquo;outils:<em><strong><br><\/strong><\/em><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"394\" data-attachment-id=\"4157\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?fit=1169%2C720&amp;ssl=1\" data-orig-size=\"1169,720\" 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=\"rac2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?fit=640%2C394&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?resize=640%2C394\" alt=\"\" class=\"wp-image-4157\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?w=1169&amp;ssl=1 1169w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?resize=300%2C185&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?resize=768%2C473&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac2.png?resize=1024%2C631&amp;ssl=1 1024w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Cliquez sur l&rsquo;outil pour ouvrir la fen\u00eatre de configuration. En effet, toutes les rampes de couleurs ne sont pas install\u00e9es automatiquement. Celle qui nous int\u00e9resse particuli\u00e8rement, cpt-city, doit \u00eatre install\u00e9e manuellement.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac3.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"542\" height=\"548\" data-attachment-id=\"4158\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac3.png?fit=542%2C548&amp;ssl=1\" data-orig-size=\"542,548\" 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=\"rac3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac3.png?fit=542%2C548&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac3.png?resize=542%2C548\" alt=\"\" class=\"wp-image-4158\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac3.png?w=542&amp;ssl=1 542w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac3.png?resize=297%2C300&amp;ssl=1 297w\" sizes=\"auto, (max-width: 542px) 100vw, 542px\" \/><\/a><\/figure>\n<\/div>\n\n\n<ol class=\"wp-block-list\">\n<li>Cochez la case Full cpt-city package<\/li>\n\n\n\n<li>Choisissez le r\u00e9pertoire pour installer le package. Attention! Par d\u00e9faut c&rsquo;est la premi\u00e8re option qui est coch\u00e9e, mais \u00e9tant donn\u00e9 que le r\u00e9pertoire Program Files est prot\u00e9g\u00e9 en \u00e9criture, \u00e7a ne marchera pas. Choisissez plut\u00f4t votre r\u00e9pertoire de personnalisation de QGis.<\/li>\n\n\n\n<li>Cliquez sur Check for update pour lancer l&rsquo;installation du paquet.<\/li>\n<\/ol>\n\n\n\n<p>Une fois le package t\u00e9l\u00e9charg\u00e9, quittez le dialogue.<\/p>\n\n\n\n<p>Suivez les instructions de la vid\u00e9o pour appliquer une rampe de couleurs \u00e0 votre couche raster<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube 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\/p6HDA2D2ECY?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><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Ajouter une couche de type \u00ab\u00a0ombrage\u00a0\u00bb (hillshade)<\/h2>\n\n\n\n<p>Pour cr\u00e9er cette couche il suffit d&rsquo;aller dans le menu Raster -&gt; Analyse de terrain -&gt; Ombrage<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac4.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"485\" height=\"361\" data-attachment-id=\"4165\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac4\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac4.png?fit=485%2C361&amp;ssl=1\" data-orig-size=\"485,361\" 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=\"rac4\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac4.png?fit=485%2C361&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac4.png?resize=485%2C361\" alt=\"\" class=\"wp-image-4165\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac4.png?w=485&amp;ssl=1 485w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac4.png?resize=300%2C223&amp;ssl=1 300w\" sizes=\"auto, (max-width: 485px) 100vw, 485px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Rentrez un nom de fichier pour archiver cette nouvelle couche.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac5.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"337\" height=\"311\" data-attachment-id=\"4166\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac5\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac5.png?fit=337%2C311&amp;ssl=1\" data-orig-size=\"337,311\" 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=\"rac5\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac5.png?fit=337%2C311&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac5.png?resize=337%2C311\" alt=\"\" class=\"wp-image-4166\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac5.png?w=337&amp;ssl=1 337w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac5.png?resize=300%2C277&amp;ssl=1 300w\" sizes=\"auto, (max-width: 337px) 100vw, 337px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Par contre, il est indispensable de modifier le facteur Z. En effet, la commande pr\u00e9suppose que vous travaillez en <a href=\"https:\/\/www.sigterritoires.fr\/index.php\/projection-qgis-crs\/\">projection<\/a> plane, c&rsquo;est \u00e0 dire que les coordonn\u00e9es XY de votre couche raster sont en m\u00e8tres. Comme la couche est en degr\u00e9s d\u00e9cimaux (latitude\/longitude) il faut entrer un facteur de conversion appropri\u00e9? La valeur a rentrer est 11120.<\/p>\n\n\n\n<p>Cliquez sur OK pour obtenir votre nouvelle couche d&rsquo;ombrage.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"381\" data-attachment-id=\"4167\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac6\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?fit=1235%2C735&amp;ssl=1\" data-orig-size=\"1235,735\" 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=\"rac6\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?fit=640%2C381&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?resize=640%2C381\" alt=\"\" class=\"wp-image-4167\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?w=1235&amp;ssl=1 1235w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?resize=300%2C179&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?resize=768%2C457&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?resize=1024%2C609&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac6.png?resize=1200%2C714&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Il ne vous reste qu&rsquo;\u00e0 modifier le style de cette couche pour avoir une vision topographique.<\/p>\n\n\n\n<p>Ouvrez les propri\u00e9t\u00e9s de la couche d&rsquo;ombrage<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"614\" data-attachment-id=\"4168\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac7\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png?fit=791%2C759&amp;ssl=1\" data-orig-size=\"791,759\" 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=\"rac7\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png?fit=640%2C614&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png?resize=640%2C614\" alt=\"\" class=\"wp-image-4168\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png?w=791&amp;ssl=1 791w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png?resize=300%2C288&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac7.png?resize=768%2C737&amp;ssl=1 768w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>Modifiez la valeur Min en <em><strong>125<\/strong> <\/em>et la valeur Max en <em><strong>255<\/strong><\/em><\/li>\n\n\n\n<li>Modifiez le Mode de fusion en <em><strong>Multiplier<\/strong><\/em><\/li>\n\n\n\n<li>Modifiez la Luminosit\u00e9 en <em><strong>45<\/strong><\/em><\/li>\n\n\n\n<li>Modifiez le Contraste en <em><strong>20<\/strong><\/em><\/li>\n<\/ul>\n\n\n\n<p>Le r\u00e9sultat final est le suivant:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"523\" height=\"527\" data-attachment-id=\"4169\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac8\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png?fit=523%2C527&amp;ssl=1\" data-orig-size=\"523,527\" 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=\"rac8\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png?fit=523%2C527&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png?resize=523%2C527\" alt=\"\" class=\"wp-image-4169\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png?w=523&amp;ssl=1 523w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac8.png?resize=298%2C300&amp;ssl=1 298w\" sizes=\"auto, (max-width: 523px) 100vw, 523px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">G\u00e9n\u00e9rer les contours (courbes de niveau)<\/h2>\n\n\n\n<p>Si vous voulez ajouter des contours, des courbes de niveau, il suffit d&rsquo;aller dans le menu Raster-&gt; Extraction -&gt; Cr\u00e9ation de contours:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac9.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"405\" height=\"321\" data-attachment-id=\"4170\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac9\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac9.png?fit=405%2C321&amp;ssl=1\" data-orig-size=\"405,321\" 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=\"rac9\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac9.png?fit=405%2C321&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac9.png?resize=405%2C321\" alt=\"\" class=\"wp-image-4170\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac9.png?w=405&amp;ssl=1 405w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac9.png?resize=300%2C238&amp;ssl=1 300w\" sizes=\"auto, (max-width: 405px) 100vw, 405px\" \/><\/a><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>Donnez un emplacement et un nom pour le fichier de contours \u00e0 cr\u00e9er<\/li>\n\n\n\n<li>Rentrez l&rsquo;intervalle, en m\u00e8tres, entre les diff\u00e9rents contours<\/li>\n\n\n\n<li>Cochez Nom d&rsquo;attribut si vous souhaitez avoir l&rsquo;\u00e9l\u00e9vation comme champ attributaire des contours (si non, vous ne pourrez pas \u00e9tiquetter les contours)<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac10.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"543\" height=\"353\" data-attachment-id=\"4171\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac10\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac10.png?fit=543%2C353&amp;ssl=1\" data-orig-size=\"543,353\" 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=\"rac10\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac10.png?fit=543%2C353&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac10.png?resize=543%2C353\" alt=\"\" class=\"wp-image-4171\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac10.png?w=543&amp;ssl=1 543w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac10.png?resize=300%2C195&amp;ssl=1 300w\" sizes=\"auto, (max-width: 543px) 100vw, 543px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Une fois ex\u00e9cut\u00e9e la commande, vous aurez les contours charg\u00e9s:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"347\" data-attachment-id=\"4172\" data-permalink=\"https:\/\/www.sigterritoires.fr\/index.php\/faire-une-carte-topographique-avec-qgis\/rac11\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?fit=1343%2C729&amp;ssl=1\" data-orig-size=\"1343,729\" 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=\"rac11\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?fit=640%2C348&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?resize=640%2C347\" alt=\"\" class=\"wp-image-4172\" srcset=\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?w=1343&amp;ssl=1 1343w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?resize=300%2C163&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?resize=768%2C417&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?resize=1024%2C556&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?resize=1200%2C651&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2017\/07\/rac11.png?w=1280&amp;ssl=1 1280w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A partir du projet SRTM on dispose aujourd&rsquo;hui d&rsquo;une couverture mondiale de donn\u00e9es d&rsquo;\u00e9l\u00e9vation de terrain. Il est devenu tr\u00e8s simple de r\u00e9aliser ses propres cartes topographiques avec QGis. Nous verrons ici: -comment t\u00e9l\u00e9charger les donn\u00e9es&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"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_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":"","jetpack_post_was_ever_published":false},"categories":[149,62],"tags":[185,400,25,399,58,398],"class_list":["post-4149","post","type-post","status-publish","format-standard","hentry","category-mnt","category-qgis-2","tag-carte","tag-courbes-de-niveau","tag-mnt","tag-ombrage","tag-qgis","tag-topographie"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p6XU0A-14V","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/4149","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=4149"}],"version-history":[{"count":0,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/4149\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media?parent=4149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/categories?post=4149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/tags?post=4149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}