Al\u00e9m disso, \u00e9 sempre mais agrad\u00e1vel trabalhar com escalas m\u00ednimas de exibi\u00e7\u00e3o, de modo que apenas determinadas camadas sejam exibidas quando o zoom for aplicado em escalas muito pequenas e as informa\u00e7\u00f5es detalhadas sejam exibidas apenas quando o zoom for aplicado em uma escala maior.<\/p>\n\n\n\n
Sele\u00e7\u00e3o de camadas a serem carregadas<\/h2>\n\n\n\n
Fornecemos um script python que resolve todos esses problemas por conta pr\u00f3pria, que pode ser baixado neste link.<\/p>\n\n\n\n
O script inclui uma lista de 210 camadas S57, ordenadas para exibi\u00e7\u00e3o correta:<\/p>\n\n\n\n
Camadas de superf\u00edcie representadas por pol\u00edgonos s\u00f3lidos, depois camadas de superf\u00edcie representadas por pol\u00edgonos vazios (somente os per\u00edmetros s\u00e3o exibidos), depois camadas do tipo linear e, por fim, camadas do tipo ponto. Dentro de cada categoria, a ordem foi projetada para evitar o mascaramento de informa\u00e7\u00f5es.<\/p>\n\n\n\n
Cada camada \u00e9 acompanhada por um valor m\u00ednimo de escala de exibi\u00e7\u00e3o, sendo o padr\u00e3o 100000000.<\/p>\n\n\n\n
Veja um exemplo:<\/p>\n\n\n\n
#Liste des couches dans l’ordre de chargement Se n\u00e3o quiser que o script carregue camadas que n\u00e3o lhe interessam, voc\u00ea pode simplesmente comentar a linha correspondente adicionando um ‘#’ no in\u00edcio da linha:<\/p>\n\n\n\n #Liste des couches dans l’ordre de chargement Nesse exemplo, as camadas TIDEWY e DAMCON n\u00e3o ser\u00e3o carregadas.<\/p>\n\n\n\n Al\u00e9m disso, se voc\u00ea quiser definir uma escala m\u00ednima de exibi\u00e7\u00e3o para uma camada, basta alterar o valor correspondente:<\/p>\n\n\n\n ‘pl_DEPARE’, 100000000), Nesse exemplo, a camada TIDEWY s\u00f3 ser\u00e1 exibida quando o valor de zoom da janela do mapa for menor que 100000 e a camada OBSTRN quando o valor for menor que 50000.<\/p>\n\n\n\n Para usar o script<\/p>\n\n\n\n Antes de execut\u00e1-lo, voc\u00ea pode fazer altera\u00e7\u00f5es para evitar que as camadas sejam carregadas ou para atribuir a elas uma escala m\u00ednima diferente. N\u00e3o se esque\u00e7a de salvar essas altera\u00e7\u00f5es antes de fechar o projeto.<\/p>\n\n\n\n O c\u00f3digo do script \u00e9 o seguinte:<\/p>\n\n\n\n <\/div><\/div>\n\n\n\n O script anterior \u00e9 usado para definir uma escala m\u00ednima quando as camadas s\u00e3o carregadas pela primeira vez no projeto. Quando voc\u00ea salva o projeto, o valor no campo Min_scale da camada \u00e9 salvo. Quando o projeto \u00e9 aberto, as configura\u00e7\u00f5es de exibi\u00e7\u00e3o no momento em que o projeto \u00e9 fechado s\u00e3o levadas em considera\u00e7\u00e3o. Portanto, voc\u00ea s\u00f3 usar\u00e1 o script anterior no in\u00edcio do trabalho em um projeto. Entretanto, as escalas definidas no script load_layers podem n\u00e3o ser adequadas para sua \u00e1rea de trabalho. Portanto, talvez seja necess\u00e1rio modificar os valores m\u00ednimos de escala para determinadas camadas.<\/p>\n\n\n\n Fornecemos um script Python que permite definir a escala m\u00ednima de exibi\u00e7\u00e3o para todas as camadas selecionadas no painel Layers<\/strong>. Depois que seu projeto for salvo, essas configura\u00e7\u00f5es ser\u00e3o usadas sempre que o projeto for aberto.<\/p>\n\n\n\n Para us\u00e1-lo, primeiro carregue-o no console do QGis Python, selecione (destaque) as camadas que deseja modificar no painel Layers (Camadas) e, o mais importante, altere a linha<\/p>\n\n\n\n #Defina a escala m\u00ednima (por exemplo, 1:50000)<\/p>\n\n\n\n min_scale = 250000<\/strong><\/em><\/p>\n\n\n\n com o valor desejado para a escala m\u00ednima de exibi\u00e7\u00e3o.<\/p>\n\n\n\n O script Python para definir a escala m\u00ednima de exibi\u00e7\u00e3o para as camadas selecionadas \u00e9 o seguinte:<\/p>\n\n\n\n <\/div><\/div>\n\n\n\n Voc\u00ea pode baix\u00e1-lo aqui.<\/a><\/p>\n\n\n\n As tabelas em seu geopackage incluem um atributo chamado \u00ab\u00a0purpose\u00a0\u00bb (finalidade), que \u00e9 um valor entre 1 e 6 e corresponde \u00e0 finalidade principal do mapa:<\/p>\n\n\n\n Se voc\u00ea tiver mapas com finalidades diferentes cobrindo a mesma \u00e1rea, por exemplo, um mapa do tipo General <\/strong><\/em>e um mapa do tipo Approach<\/strong><\/em>, haver\u00e1 informa\u00e7\u00f5es duplicadas. Se as entidades em dois mapas n\u00e3o forem do mesmo tipo (uma entidade de superf\u00edcie em um mapa de Aproxima\u00e7\u00e3o <\/strong><\/em>corresponder\u00e1 a uma entidade de ponto no mapa Geral<\/strong><\/em>, por exemplo), a renderiza\u00e7\u00e3o poder\u00e1 se tornar rapidamente muito confusa. A solu\u00e7\u00e3o proposta \u00e9 simples<\/p>\n\n\n\n # Importer le module QGIS Voc\u00ea pode fazer o download do script aqui.<\/a><\/p>\n\n\n\n Carregue o script no console do Python e modifique a linha:<\/p>\n\n\n\n #Defina o valor do atributo \u00ab\u00a0purpose\u00a0\u00bb a ser filtrado<\/p>\n\n\n\n purpose_value = 5<\/strong><\/em><\/p>\n\n\n\n com o valor de finalidade desejado e, em seguida, execute o script. Todas as camadas presentes no painel Layers do projeto ser\u00e3o filtradas.<\/p>\n\n\n\n Se quiser remover todos os filtros ativos de todas as camadas do projeto, o script a seguir permite que voc\u00ea fa\u00e7a isso:<\/p>\n\n\n\n <\/div><\/div>\n\n\n\n Voc\u00ea pode fazer o download do script aqui.<\/a><\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Este artigo completa a s\u00e9rie de artigos sobre a cria\u00e7\u00e3o de um banco de dados de geopacote para gerenciar as cartas n\u00e1uticas ENC no QGis e a simbologia das v\u00e1rias camadas de dados. Trabalhar com um…<\/p>\n","protected":false},"author":1,"featured_media":12915,"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":[2134],"tags":[2727,2831,2162,2803,2160,2731],"class_list":["post-12845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-qgis","tag-enc-pt","tag-filtros-pt","tag-geopackage-pt","tag-python-pt","tag-qgis-pt","tag-s57-pt"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2024\/04\/aert8-4.png?fit=1885%2C677&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p6XU0A-3lb","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/12845","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=12845"}],"version-history":[{"count":0,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/posts\/12845\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media\/12915"}],"wp:attachment":[{"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/media?parent=12845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/categories?post=12845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigterritoires.fr\/index.php\/wp-json\/wp\/v2\/tags?post=12845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
couches_a_charger = [
(‘pl_DEPARE’, 100000000),
(‘pl_UNSARE’, 100000000),
(‘pl_TIDEWY’, 100000000),
(‘pl_DAMCON’, 100000000),
(‘pl_CAUSWY’, 100000000),
(‘pl_HULKES’, 100000000),
(‘pl_LOKBSN’, 100000000),
(‘pl_OBSTRN’, 100000000),
(‘pl_PONTON’, 100000000),
(‘pl_PYLONS’, 100000000),<\/strong><\/em><\/p>\n\n\n\n
couches_a_charger = [
(‘pl_DEPARE’, 100000000),
(‘pl_UNSARE’, 100000000),
#(‘pl_TIDEWY’, 100000000),
#(‘pl_DAMCON’, 100000000),<\/strong><\/em><\/p>\n\n\n\n
(‘pl_UNSARE’, 100000000),
(‘pl_TIDEWY’, 100000),
#(‘pl_DAMCON’, 100000000),
#(‘pl_CAUSWY’, 100000000),
(‘pl_HULKES’, 100000000),
(‘pl_LOKBSN’, 100000000),
(‘pl_OBSTRN’, 50000),<\/strong><\/em><\/p>\n\n\n\n\n
![\"\"](\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2024\/04\/aert8-1.png?resize=640%2C230&ssl=1\")
<\/a><\/figure>\n\n\n\n\n
<\/div>
from qgis.core import QgsProject\n\n# Chemin vers le geopackage\nchemin_geopackage = 'c:\/testgpkgV3\/ENC2.gpkg'\n\n## Liste des couches dans l'ordre de chargement\ncouches_a_charger = [\n ('pl_DEPARE', 100000000),\n ('pl_UNSARE', 100000000),\n ('pl_TIDEWY', 100000000),\n ('pl_DAMCON', 100000000),\n ('pl_CAUSWY', 100000000),\n ('pl_HULKES', 100000000),\n ('pl_LOKBSN', 100000000),\n ('pl_OBSTRN', 100000000),\n ('pl_PONTON', 100000000),\n ('pl_PYLONS', 100000000),\n ('pl_SBDARE', 100000000),\n ('pl_DRGARE', 100000000),\n ('pl_TSEZNE', 100000000),\n ('pl_WRECKS', 100000000),\n ('pl_FLODOC', 100000000),\n ('pl_LNDARE', 100000000),\n ('pl_CANALS', 100000000),\n ('pl_LAKARE', 100000000),\n ('pl_RIVERS', 100000000),\n ('pl_BUAARE', 100000000),\n ('pl_BUISLG', 100000000),\n ('pl_CHKPNT', 100000000),\n ('pl_CONVYR', 100000000),\n ('pl_DOCARE', 100000000),\n ('pl_ROADWY', 100000000),\n ('pl_RUNWAY', 100000000),\n ('pl_DRYDOC', 100000000),\n ('pl_DYKCON', 100000000),\n ('pl_FORSTC', 100000000),\n ('pl_GATCON', 100000000),\n ('pl_LNDMRK', 100000000),\n ('pl_SLCONS', 100000000),\n ('pl_BRIDGE', 100000000),\n ('pl_WEDKLP', 100000000),\n ('pl_WATTUR', 100000000),\n ('pl_VEGATN', 100000000),\n ('pl_TWRTPT', 100000000),\n ('pl_TUNNEL', 100000000),\n ('pl_TSSLPT', 100000000),\n ('pl_TESARE', 100000000),\n ('pl_SWPARE', 100000000),\n ('pl_SPLARE', 100000000),\n ('pl_SNDWAV', 100000000),\n ('pl_SMCFAC', 100000000),\n ('pl_SLOGRD', 100000000),\n ('pl_SILTNK', 100000000),\n ('pl_SEAARE', 100000000),\n ('pl_RESARE', 100000000),\n ('pl_RCTLPT', 100000000),\n ('pl_PRDARE', 100000000),\n ('pl_PRCARE', 100000000),\n ('pl_PIPARE', 100000000),\n ('pl_PILBOP', 100000000),\n ('pl_OSPARE', 100000000),\n ('pl_OFSPLF', 100000000),\n ('pl_MORFAC', 100000000),\n ('pl_MIPARE', 100000000),\n ('pl_MARCUL', 100000000),\n ('pl_LOGPON', 100000000),\n ('pl_LNDRGN', 100000000),\n ('pl_ISTZNE', 100000000),\n ('pl_ICEARE', 100000000),\n ('pl_HRBFAC', 100000000),\n ('pl_HRBARE', 100000000),\n ('pl_GRIDRN', 100000000),\n ('pl_FSHZNE', 100000000),\n ('pl_FSHGRD', 100000000),\n ('pl_FSHFAC', 100000000),\n ('pl_FRPARE', 100000000),\n ('pl_FERYRT', 100000000),\n ('pl_FAIRWY', 100000000),\n ('pl_EXEZNE', 100000000),\n ('pl_DWRTPT', 100000000),\n ('pl_DMPGRD', 100000000),\n ('pl_CTSARE', 100000000),\n ('pl_CTNARE', 100000000),\n ('pl_CBLARE', 100000000),\n ('pl_BERTHS', 100000000),\n ('pl_AIRARE', 100000000),\n ('pl_ADMARE', 100000000),\n ('pl_ACHBRT', 100000000),\n ('pl_ACHARE', 100000000),\n ('pl_CRANES', 100000000),\n\t('li_RAPIDS', 100000000),\n\t('li_MARCUL', 100000000),\n\t('li_FLODOC', 100000000),\n\t('li_LNDMRK', 100000000),\n\t('li_FERYRT', 100000000),\n\t('li_CBLSUB', 100000000),\n\t('li_COALNE', 100000000),\n\t('li_DEPARE', 100000000),\n\t('li_DEPCNT', 100000000),\n\t('li_LNDARE', 100000000),\n\t('li_RIVERS', 100000000),\n\t('li_SLCONS', 100000000),\n\t('li_PIPOHD', 100000000),\n\t('li_MAGVAR', 100000000),\n\t('li_RECTRC', 100000000),\n\t('li_PIPSOL', 100000000),\n\t('li_BRIDGE', 100000000),\n\t('li_CONVYR', 100000000),\n\t('li_SBDARE', 100000000),\n\t('li_LNDELV', 100000000),\n\t('li_SLOTOP', 100000000),\n\t('li_DAMCON', 100000000),\n\t('li_OBSTRN', 100000000),\n\t('li_RADLNE', 100000000),\n\t('li_RAILWY', 100000000),\n\t('li_ROADWY', 100000000),\n\t('li_CAUSWY', 100000000),\n\t('li_WATFAL', 100000000),\n\t('li_CBLOHD', 100000000),\n\t('li_TSSBND', 100000000),\n\t('li_WATTUR', 100000000),\n\t('li_MORFAC', 100000000),\n\t('li_GATCON', 100000000),\n\t('li_TSELNE', 100000000),\n\t('li_DYKCON', 100000000),\n\t('li_VEGATN', 100000000),\n\t('li_RUNWAY', 100000000),\n\t('li_FNCLNE', 100000000),\n\t('li_RDOCAL', 100000000),\n\t('li_STSLNE', 100000000),\n\t('li_NAVLNE', 100000000),\n\t('li_OILBAR', 100000000),\n\t('li_CANALS', 100000000),\n\t('li_FORSTC', 100000000),\n\t('li_DWRTCL', 100000000),\n\t('li_TIDEWY', 100000000),\n\t('li_TUNNEL', 100000000),\n\t('li_BERTHS', 100000000),\n\t('li_RCRTCL', 100000000),\n\t('li_FSHFAC', 100000000),\n\t('li_PONTON', 100000000),\n\t('pt_ROADWY', 100000000),\n\t('pt_BUAARE', 100000000),\n\t('pt_DMPGRD', 100000000),\n\t('pt_BOYCAR', 100000000),\n\t('pt_BOYSAW', 100000000),\n\t('pt_ACHARE', 100000000),\n\t('pt_BOYINB', 100000000),\n\t('pt_PILBOP', 100000000),\n\t('pt_OFSPLF', 100000000),\n\t('pt_BOYSPP', 100000000),\n\t('pt_FOGSIG', 100000000),\n\t('pt_LNDARE', 100000000),\n\t('pt_LNDELV', 100000000),\n\t('pt_SPLARE', 100000000),\n\t('pt_LNDRGN', 100000000),\n\t('pt_LIGHTS', 100000000),\n\t('pt_SILTNK', 100000000),\n\t('pt_WATTUR', 100000000),\n\t('pt_ICNARE', 100000000),\n\t('pt_MIPARE', 100000000),\n\t('pt_TS_TIS', 100000000),\n\t('pt_OBSTRN', 100000000),\n\t('pt_PILPNT', 100000000),\n\t('pt_RTPBCN', 100000000),\n\t('pt_SBDARE', 100000000),\n\t('pt_RETRFL', 100000000),\n\t('pt_SOUNDG', 100000000),\n\t('pt_TOPMAR', 100000000),\n\t('pt_HULKES', 100000000),\n\t('pt_LOGPON', 100000000),\n\t('pt_WEDKLP', 100000000),\n\t('pt_WRECKS', 100000000),\n\t('pt_NEWOBJ', 100000000),\n\t('pt_UWTROC', 100000000),\n\t('pt_AIRARE', 100000000),\n\t('pt_CURENT', 100000000),\n\t('pt_LNDMRK', 100000000),\n\t('pt_LOCMAG', 100000000),\n\t('pt_SEAARE', 100000000),\n\t('pt_LITFLT', 100000000),\n\t('pt_BOYISD', 100000000),\n\t('pt_CTNARE', 100000000),\n\t('pt_FSHFAC', 100000000),\n\t('pt_HRBFAC', 100000000),\n\t('pt_MORFAC', 100000000),\n\t('pt_VEGATN', 100000000),\n\t('pt_PIPSOL', 100000000),\n\t('pt_GATCON', 100000000),\n\t('pt_SMCFAC', 100000000),\n\t('pt_BUISGL', 100000000),\n\t('pt_BCNLAT', 100000000),\n\t('pt_BCNSPP', 100000000),\n\t('pt_CTRPNT', 100000000),\n\t('pt_FORSTC', 100000000),\n\t('pt_RDOSTA', 100000000),\n\t('pt_DAMCON', 100000000),\n\t('pt_LITVES', 100000000),\n\t('pt_BCNCAR', 100000000),\n\t('pt_RUNWAY', 100000000),\n\t('pt_PYLONS', 100000000),\n\t('pt_CGUSTA', 100000000),\n\t('pt_RCTLPT', 100000000),\n\t('pt_TS_FEB', 100000000),\n\t('pt_BRIDGE', 100000000),\n\t('pt_SPRING', 100000000),\n\t('pt_ACHBRT', 100000000),\n\t('pt_RDOCAL', 100000000),\n\t('pt_BOYLAT', 100000000),\n\t('pt_TS_PAD', 100000000),\n\t('pt_TS_PRH', 100000000),\n\t('pt_DISMAR', 100000000),\n\t('pt_SLOGRD', 100000000),\n\t('pt_SNDWAV', 100000000),\n\t('pt_PRDARE', 100000000),\n\t('pt_SISTAW', 100000000),\n\t('pt_RADSTA', 100000000),\n\t('pt_CRANES', 100000000),\n\t('pt_MARCUL', 100000000),\n\t('pt_BERTHS', 100000000),\n\t('pt_RSCSTA', 100000000),\n\t('pt_BCNSAW', 100000000),\n\t('pt_SISTAT', 100000000),\n\t('pt_SLCONS', 100000000),\n\t('pt_BCNISD', 100000000),\n\t('pt_DAYMAR', 100000000),\n\t('pt_WATFAL', 100000000)\n\n # Ajoutez d'autres noms de couche avec leur \u00e9chelle minimale dans le m\u00eame format\n]\n\n# R\u00e9cup\u00e9rer le projet en cours\nprojet = QgsProject.instance()\n\n# Charger chaque couche dans l'ordre sp\u00e9cifi\u00e9\nfor nom_couche, echelle_min in couches_a_charger:\n # Construire le chemin complet de la couche\n chemin_couche = '{}|layername={}'.format(chemin_geopackage, nom_couche)\n # Charger la couche\n couche = QgsVectorLayer(chemin_couche, nom_couche, 'ogr')\n # V\u00e9rifier si la couche est valide\n if couche.isValid():\n # Ajouter la couche au projet\n projet.addMapLayer(couche)\n # D\u00e9finir l'\u00e9chelle minimale pour la couche\n couche.setScaleBasedVisibility(True)\n couche.setMinimumScale(echelle_min)\n print(f\"L'\u00e9chelle d'affichage de la couche {nom_couche} a \u00e9t\u00e9 d\u00e9finie sur {echelle_min}.\")\n else:\n print(\"Impossible de charger la couche :\", nom_couche)\n\nprint(\"Chargement des couches termin\u00e9.\")\n<\/code><\/pre>\n\n\n\nGerenciamento da escala de exibi\u00e7\u00e3o<\/h2>\n\n\n\n
![\"\"](\"https:\/\/i0.wp.com\/www.sigterritoires.fr\/wp-content\/uploads\/2024\/03\/chargergpkg4.png?resize=640%2C301&ssl=1\")
<\/a><\/figure>\n\n\n\n<\/div>
# R\u00e9cup\u00e9rer la vue des couches\nlayer_tree_view = iface.layerTreeView()\n\n# R\u00e9cup\u00e9rer les couches s\u00e9lectionn\u00e9es\nselected_layers = layer_tree_view.selectedLayers()\n\n# D\u00e9finir l'\u00e9chelle minimale pour chaque couche s\u00e9lectionn\u00e9e\nfor layer in selected_layers:\n # D\u00e9finir l'\u00e9chelle minimale (par exemple, 1:50000)\n min_scale = 250000\n \n # D\u00e9finir l'\u00e9chelle minimale d'affichage pour la couche\n layer.setScaleBasedVisibility(True)\n layer.setMinimumScale(min_scale)\n print(f\"L'\u00e9chelle d'affichage de la couche {layer.name()} a \u00e9t\u00e9 d\u00e9finie sur {min_scale}.\")\n\n\n<\/code><\/pre>\n\n\n\nUm script Python para filtrar camadas por \u00ab\u00a0finalidade\u00a0\u00bb<\/h2>\n\n\n\n
\n
<\/div>
from qgis.core import QgsProject, QgsMapLayerType
# D\u00e9finir le valeur de l’attribut \u00ab\u00a0purpose\u00a0\u00bb \u00e0 filtrer
valeur_purpose = 3
# Obtenir le projet actif
projet = QgsProject.instance()
# Obtenir la liste des couches charg\u00e9es dans le projet
couches = projet.mapLayers().values()
# Parcourir toutes les couches
for couche in couches:
# V\u00e9rifier si la couche est de type vecteur
if couche.type() == QgsMapLayerType.VectorLayer:
# V\u00e9rifier si la couche a un champ nomm\u00e9 \u00ab\u00a0purpose\u00a0\u00bb
if couche.fields().indexFromName(‘purpose’) != -1:
# V\u00e9rifier si le nom de la couche commence par l’un des pr\u00e9fixes sp\u00e9cifi\u00e9s
if couche.name().startswith((‘pt_’, ‘li_’, ‘pl_’)):
# D\u00e9finir le filtre sur l’attribut \u00ab\u00a0purpose\u00a0\u00bb \u00e9gal \u00e0 la valeur sp\u00e9cifi\u00e9e
filtre = f'\u00a0\u00bbpurpose\u00a0\u00bb = {valeur_purpose}’
couche.setSubsetString(filtre)
print(f\u00a0\u00bbFiltre d\u00e9fini pour la couche {couche.name()}\u00a0\u00bb)
else:
print(f\u00a0\u00bbLa couche {couche.name()} ne commence pas par ‘pt_’, ‘li_’, ou ‘pl_'\u00a0\u00bb)
else:
print(f\u00a0\u00bbLa couche {couche.name()} n’a pas d’attribut ‘purpose'\u00a0\u00bb)
else:
print(f\u00a0\u00bbLa couche {couche.name()} n’est pas une couche vecteur\u00a0\u00bb)
<\/div><\/div>
<\/p>\n\n\n\n<\/div>
# Importer le module QGIS\nfrom qgis.core import QgsProject\n\n# Obtenir le projet actif\nprojet = QgsProject.instance()\n\n# Obtenir la liste des couches charg\u00e9es dans le projet\ncouches = projet.mapLayers().values()\n\n# Parcourir toutes les couches\nfor couche in couches:\n # V\u00e9rifier si la couche est une couche vectorielle\n if couche.type() == QgsMapLayer.VectorLayer:\n # Supprimer le filtre de la couche\n couche.setSubsetString('')\n print(f\"Filtre supprim\u00e9 pour la couche {couche.name()}\")\n<\/code><\/pre>\n\n\n\n