Ceci est une ancienne révision du document !
Strict Standards: Declaration of syntax_plugin_tag_topic::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/tag/syntax/topic.php on line 123
Strict Standards: Declaration of syntax_plugin_tag_topic::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/tag/syntax/topic.php on line 123
Strict Standards: Declaration of syntax_plugin_tag_searchtags::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/tag/syntax/searchtags.php on line 280
Strict Standards: Declaration of syntax_plugin_tag_searchtags::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/tag/syntax/searchtags.php on line 280
Strict Standards: Declaration of syntax_plugin_tag_tag::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/tag/syntax/tag.php on line 118
Strict Standards: Declaration of syntax_plugin_tag_tag::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/tag/syntax/tag.php on line 118
Strict Standards: Declaration of syntax_plugin_tag_count::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/tag/syntax/count.php on line 130
Strict Standards: Declaration of syntax_plugin_tag_count::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/tag/syntax/count.php on line 130
Strict Standards: Declaration of syntax_plugin_tag_tagpage::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/tag/syntax/tagpage.php on line 96
Strict Standards: Declaration of syntax_plugin_tag_tagpage::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/tag/syntax/tagpage.php on line 96
Strict Standards: Declaration of syntax_plugin_clearfloat::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/clearfloat/syntax.php on line 74
Strict Standards: Declaration of syntax_plugin_clearfloat::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/clearfloat/syntax.php on line 74
Strict Standards: Declaration of syntax_plugin_pageindex::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/pageindex/syntax.php on line 187
Strict Standards: Declaration of syntax_plugin_pageindex::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/pageindex/syntax.php on line 187
Strict Standards: Declaration of syntax_plugin_googlemaps_googlemap::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/googlemaps/syntax/googlemap.php on line 169
Strict Standards: Declaration of syntax_plugin_googlemaps_googlemap::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/googlemaps/syntax/googlemap.php on line 169
Strict Standards: Declaration of syntax_plugin_nextpage::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/nextpage/syntax.php on line 69
Strict Standards: Declaration of syntax_plugin_nextpage::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/nextpage/syntax.php on line 69
Strict Standards: Declaration of syntax_plugin_include::handle() should be compatible with DokuWiki_Syntax_Plugin::handle($match, $state, $pos, Doku_Handler $handler) in /var/www/html/web/wiki/lib/plugins/include/syntax.php on line 137
Strict Standards: Declaration of syntax_plugin_include::render() should be compatible with DokuWiki_Syntax_Plugin::render($format, Doku_Renderer $renderer, $data) in /var/www/html/web/wiki/lib/plugins/include/syntax.php on line 137
Connaître et modifier le système de projection d’une table
Le système de projection d’une couche est très important. Vous devez, pour travailler proprement sur vos couches, œuvrer dans un système de projection unique dans la mesure du possible. Ceci évite les erreurs lors de calculs d’analyses spatiale, ne serait-ce que pour calculer des distances, ou pour croiser des couches.
Le système de projection est à modifier au minimum, car les passages multiples d’un système à un autre génèrent des déformations sur les entités.
Pour connaître le système de projection d’une couche, allez dans le menu Table >Gestion table >Modifier structure. Dans la fenêtre qui s’affiche, appuyez sur le bouton Projection pour faire apparaître le système de projection.
Pour modifier le système de projection d’une couche, il faut enregistrer la couche sous un autre nom (menu Table >Enregistrer table sous…) ; dans la fenêtre d’enregistrement (représentée ci-dessous), appuyer sur le bouton projection pour spécifier une catégorie et un système de projection différents.
Il est important de noter que lorsqu’un raster est ouvert dans une fenêtre Carte, c’est lui qui impose son système de projection au reste des couche pour la représentation.