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Strict Standards: Declaration of syntax_plugin_tag_topic::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/tag/syntax/topic.php on line 123
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Plugin installed incorrectly. Rename plugin directory 'backlinks.old' to 'backlinks'.
−Table des matières
Worldfile
Fichier texte de référence spatiale associé à un fichier image (avec ou sans information de référencement dans son en-tête), portant le même nom que l'image. Un WorldFile détermine la localisation de l'image dans l'espace cartographique (nb: il ne comporte pas d'information sur la projection de celle-ci).
Son extension dépend de celle de l'image: soit lettre1+lettre3+W (JGW pour JPG, BPW pour BMP, TFW pour TIF, etc…), soit trois_lettres+W (JPGW pour JPG, BMPW pour BMP, TIFW pour TIF, etc…).
Détails (extrait du PDF de Dominique Lys)
Le Worldfile contient les paramètres A,B,C,D,E,F pour exécuter la transformation de tout pixel (x,y) en (x',y') par une transformation affine :
x' = Ax + By + C y' = Dx + Ey + F
Avec :
x' = coordonnée x calculée du pixel sur la carte. y' = coordonnée y calculée du pixel sur la carte. x = numéro de colonne d'un pixel sur l'image. y = numéro de ligne d'un pixel sur l'image. A = dimension d'un pixel dans la direction des x. B, D = termes de rotation C, F = coordonnées cartographiques x,y du centre du pixel supérieur gauche. E = dimension d'un pixel dans la direction des y.
Ressources
- Plus d'explications sur le site de support Mapinfo - en anglais
- PDF de Dominique Lys posté sur le GeoRezo
- Créer un Worldfile depuis une image GeoTiff (AML script)
