<\/div>

<\/div><\/div>

<LookAt id=\u00a0\u00bbID\u00a0\u00bb>
\n<longitude>0.0<\/longitude>
\n<latitude>0.0<\/latitude>
\n<altitude>0.0<\/altitude>
\n<heading>0.0<\/heading>
\n<tilt>0.0<\/tilt>
\n<range>0.0<\/range>
\n<altitudeMode>clampToGround<\/altitudeMode>
\n<\/LookAt><\/div><\/div>\n

Les \u00e9l\u00e9ments enfants pour <LookAt> <\/strong>sont les suivants:<\/p>\n

\n
<longitude><\/strong><\/em> : La longitude du point observ\u00e9. C’est la distance angulaire en degr\u00e9s par rapport au Meridien de r\u00e9f\u00e9rence (en principe Greenwich). Les valeurs \u00e0 l’ouest du Meridien vont de -180 degr\u00e9s \u00e0 0 degr\u00e9s. Les valeurs \u00e0 l’est du Meridien vont de 0 degr\u00e9s \u00e0 180 degr\u00e9s.<\/li>\n
<latitude><\/strong><\/em> :Latitude du point observ\u00e9. Degr\u00e9s au Nord ou au Sud de l’\u00e9quateur (0 degr\u00e9s). Les valeurs varient de -90 degr\u00e9s \u00e0 90 degr\u00e9s.<\/li>\n
<altitude><\/strong><\/em> :Distance de la surface de la Terre, en m\u00e8tres. Voir <altitudeMode> pour savoir comment cette valeur est interpr\u00e9t\u00e9e.<\/li>\n
<heading><\/strong><\/em> :Direction (c’est-\u00e0-dire Nord, Sud, Est, Ouest), en degr\u00e9s. Par d\u00e9faut = 0 (Nord). Les valeurs varient de 0 degr\u00e9s \u00e0 360 degr\u00e9s, avec 90 degr\u00e9s = Est, 180 degr\u00e9s = Sud, 270 degr\u00e9s = Ouest. Cette valeur peut \u00e9galement \u00eatre sp\u00e9cifi\u00e9e en degr\u00e9s n\u00e9gatifs (dans le sens inverse des aiguilles d’une montre de 0).<\/li>\n
<tilt><\/strong><\/em> :Angle entre la direction du point de vue et la surface de la Terre (voir Figure). Les valeurs varient de 0 degr\u00e9s \u00e0 180 degr\u00e9s. Les valeurs ne peuvent pas \u00eatre n\u00e9gatives. Une valeur de 0 degr\u00e9s indique l’observation \u00e0 partir d’un point perpendiculaire \u00e0 la localisation, en regardant vers le bas. Une valeur de 90 degr\u00e9s indique l’observation horizontale, droit vers l’horizon.<\/li>\n
<range><\/strong><\/em> :Distance en m\u00e8tres entre le point sp\u00e9cifi\u00e9 par <longitude>, <latitude>, et <altitude>, et la position du point de vue.<\/li>\n

<altitudeMode><\/strong><\/em> :Sp\u00e9cifie comment l’altitude d\u00e9finie pour le point (valeur de <altitude>)est interpr\u00e9t\u00e9e. Les valeurs possibles sont les suivantes:\n
\n
ClampToGround<\/strong> (par d\u00e9faut): Indique d’ignorer la sp\u00e9cification de <altitude> et place la position de <LookAt> directement sur le sol.<\/li>\n
RelativeToGround<\/strong> :Interpr\u00e8te <altitude> comme une valeur en m\u00e8tres au-dessus du sol.<\/li>\n
absolute<\/strong> :Interpr\u00e8te <altitude> comme une valeur en m\u00e8tres au-dessus du niveau de la mer.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
La mani\u00e8re la plus simple de cr\u00e9er un \u00e9l\u00e9ment avec les valeurs souhait\u00e9es est d’utiliser le copier-coller d\u00e9crit dans l’article pr\u00e9c\u00e9dent.<\/p>\n
la fonctionnalit\u00e9 SnapShot de Google Earth.\u00a0 Volez, inclinez ou faites pivoter l’affichage jusqu’\u00e0 ce que vous soyez satisfait de la vue. Cliquez avec le bouton droit de la souris sur le rep\u00e8re et s\u00e9lectionnez Copier<\/strong><\/em>. Ouvrez un \u00e9diteur de texte et faites un Coller<\/strong><\/em>.<\/p>\n
Dans l’exemple suivant (http:\/\/www.nasca.ovh\/downloads\/kml\/lookat1.kml)<\/p>\n
$\"\"$ <\/a>Le r\u00e9sultat du Copier-coller est le suivant:<\/p>\n
<\/div>
<\/div>
<\/div><\/div>
<kml xmlns=\u00a0\u00bbhttp:\/\/www.opengis.net\/kml\/2.2″ xmlns:gx=\u00a0\u00bbhttp:\/\/www.google.com\/kml\/ext\/2.2″ xmlns:kml=\u00a0\u00bbhttp:\/\/www.opengis.net\/kml\/2.2″ xmlns:atom=\u00a0\u00bbhttp:\/\/www.w3.org\/2005\/Atom\u00a0\u00bb>
\n<Placemark>
\n<name>Visite du 16 juin 2017<\/name>
\n<description><![CDATA[Apr\u00e8s v\u00e9rification des capteurs mis en place, nous avons proc\u00e9d\u00e9 \u00e0 l’\u00e9chantillonnage<\/p>
\nLes \u00e9chantillons ont \u00e9t\u00e9 marqu\u00e9s et emball\u00e9s sur place<\/p>]]><\/description>
\n<LookAt><\/strong><\/em>
\n <longitude>-4.964173334596812<\/longitude><\/strong><\/em>
\n <latitude>48.39543755926342<\/latitude><\/strong><\/em>
\n <altitude>0<\/altitude><\/strong><\/em>
\n <heading>8.905506807657265<\/heading><\/strong><\/em>
\n <tilt>79.30646922221436<\/tilt><\/strong><\/em>
\n <range>1174.810688535466<\/range><\/strong><\/em>
\n <gx:altitudeMode>relativeToSeaFloor<\/gx:altitudeMode><\/strong><\/em>
\n <\/LookAt><\/strong><\/em>
\n<Point>
\n<coordinates>-4.964,48.392,0<\/coordinates>
\n<\/Point>
\n<\/Placemark>
\n<\/kml><\/div><\/div>\n
L’\u00e9l\u00e9ment <LookAt> doit \u00eatre plac\u00e9 imm\u00e9diatement apr\u00e8s la balise <\/description>.<\/p>\n
Groupement de rep\u00e8res : la balise <Folder><\/h2>\n
Utilisez un \u00e9l\u00e9ment <Folder> pour grouper plusieurs rep\u00e8res. Un <Folder>, comme un <Placemark>, a les \u00e9l\u00e9ments <name> et <description>, qui apparaissent dans la vue des lieux. Dans Google Earth, vous pouvez visiter les diff\u00e9rents rep\u00e8res dans un dossier en cliquant sur le dossier et en s\u00e9lectionnant le bouton Lancer la visite<\/strong> <\/em>dans liste des lieux<\/p>\n
$\"lancer$ <\/a><\/p>\n
Si vous sp\u00e9cifiez des points de vue pour les rep\u00e8res, Google Earth passe automatiquement au point de vue sp\u00e9cifi\u00e9 pour chaque rep\u00e8re.<\/p>\n
Le fichier http:\/\/www.nasca.ovh\/downloads\/kml\/lookat.kml affiche un <Folder> qui contient trois \u00e9l\u00e9ments <Placemark>, chacun avec un point de vue sp\u00e9cifi\u00e9 par un \u00e9l\u00e9ment <LookAt>.<\/p>\n
<\/div>
lookat.kml<\/div>
<\/div><\/div>
<kml xmlns=\u00a0\u00bbhttp:\/\/www.opengis.net\/kml\/2.2″ xmlns:gx=\u00a0\u00bbhttp:\/\/www.google.com\/kml\/ext\/2.2″ xmlns:kml=\u00a0\u00bbhttp:\/\/www.opengis.net\/kml\/2.2″ xmlns:atom=\u00a0\u00bbhttp:\/\/www.w3.org\/2005\/Atom\u00a0\u00bb>
\n<Folder>
\n<name>Vol vers des rep\u00e8res<\/name>
\n<open>1<\/open>
\n<Placemark id=\u00a0\u00bb1″>
\n<name>Visite du 16 juin 2017<\/name>
\n<description><![CDATA[Apr\u00e8s v\u00e9rification des capteurs mis en place, nous avons proc\u00e9d\u00e9 \u00e0 l’\u00e9chantillonnage<\/p>
\nLes \u00e9chantillons ont \u00e9t\u00e9 marqu\u00e9s et emball\u00e9s sur place<\/p>]]><\/description>
\n<LookAt>
\n<longitude>-4.964173334596812<\/longitude>
\n<latitude>48.39543755926342<\/latitude>
\n<altitude>0<\/altitude>
\n<heading>8.905506807657265<\/heading>
\n<tilt>79.30646922221436<\/tilt>
\n<range>1174.810688535466<\/range>
\n<gx:altitudeMode>relativeToSeaFloor<\/gx:altitudeMode>
\n<\/LookAt>
\n<Point>
\n<coordinates>-4.964,48.392,0<\/coordinates>
\n<\/Point>
\n<\/Placemark>
\n<Placemark id=\u00a0\u00bb2″>
\n<name>Visite du 17 juin 2017<\/name>
\n<description>
\n<![CDATA[
\nApr\u00e8s v\u00e9rification des capteurs mis en place, nous n’avons pas proc\u00e9d\u00e9 \u00e0 l\u2019\u00e9chantillonnage<\/p>
\n]]>
\n<\/description>
\n<LookAt>
\n<longitude>-4.964027085363179<\/longitude>
\n<latitude>48.39848639649534<\/latitude>
\n<altitude>0<\/altitude>
\n<heading>112.6147092667253<\/heading>
\n<tilt>43.68158406433638<\/tilt>
\n<range>1308.593420201757<\/range>
\n<gx:altitudeMode>relativeToSeaFloor<\/gx:altitudeMode>
\n<\/LookAt>
\n<Point>
\n<coordinates>-4.96559,48.40013,0<\/coordinates>
\n<\/Point>
\n<\/Placemark>
\n<Placemark id=\u00a0\u00bb3″>
\n<name>Visite du 18 juin 2017<\/name>
\n<description>
\n<![CDATA[
\nApr\u00e8s v\u00e9rification des capteurs mis en place, nous avons proc\u00e9d\u00e9 \u00e0 l\u2019\u00e9chantillonnage<\/p>
\nLes \u00e9chantillons ont \u00e9t\u00e9 marqu\u00e9s et emball\u00e9s sur place<\/p>
\n]]>
\n<\/description>
\n<LookAt>
\n<longitude>-4.95766406933723<\/longitude>
\n<latitude>48.40344387516042<\/latitude>
\n<altitude>0<\/altitude>
\n<heading>-116.414218265003<\/heading>
\n<tilt>57.02348249571338<\/tilt>
\n<range>701.6067609970371<\/range>
\n<gx:altitudeMode>relativeToSeaFloor<\/gx:altitudeMode>
\n<\/LookAt>
\n<Point>
\n<coordinates>-4.95670,48.40211,0<\/coordinates>
\n<\/Point>
\n<\/Placemark>
\n<\/Folder>
\n<\/kml><\/div><\/div>\n
Si vous utilisez le bouton Lancer la visite<\/strong><\/em>, vous verrez successivement chaque rep\u00e8re \u00e0 partir du point de vue d\u00e9fini dans le fichier kml pendant quelques secondes, puis la vue se d\u00e9placera au prochain point de vue, et ce jusqu’au dernier rep\u00e8re.<\/p>\n
Les temps par d\u00e9faut sont param\u00e9tr\u00e9s dans le menu Outils -> Options -> Visite<\/strong><\/em><\/p>\n
$\"\"$ <\/a>Voici le r\u00e9sultat de la visite du fichier lookat.kml<\/p>\n
<\/iframe><\/span><\/div>\n","protected":false},"excerpt":{"rendered":"Lorsque l’utilisateur double-clique sur un rep\u00e8re, Google Earth automatiquement zoome la vue directement sur le marqueur. Vous pouvez contr\u00f4ler la vue initiale du marqueur en sp\u00e9cifiant un \u00e9l\u00e9ment <LookAt> qui d\u00e9finit le point de vue exact…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_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_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,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[172],"tags":[391,396,397],"class_list":["post-4115","post","type-post","status-publish","format-standard","hentry","category-tutoriel","tag-kml","tag-lookat","tag-point-de-vue"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t<meta 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Sp\u00e9cification d’un point de vue<\/h2>\nL’\u00e9l\u00e9ment <LookAt> d\u00e9crit un point de vue en utilisant un point sur la surface de la Terre comme r\u00e9f\u00e9rence. Voici la syntaxe de cet \u00e9l\u00e9ment:<\/p>\n<\/div>