{"id":3112,"date":"2018-09-10T18:15:42","date_gmt":"2018-09-10T16:15:42","guid":{"rendered":"https:\/\/sompirineu.cat\/senderia\/?p=3112"},"modified":"2021-06-09T18:36:32","modified_gmt":"2021-06-09T16:36:32","slug":"cartografies","status":"publish","type":"post","link":"https:\/\/sompirineu.cat\/senderia\/cartografies\/","title":{"rendered":"Cartografies"},"content":{"rendered":"

Deia fa uns anys Norman J.W. Thrower que el mapa \u00e9s la representaci\u00f3 simplificada de la realitat que ens facilita la comprensi\u00f3 del m\u00f3n. En el nostre cas, el mapa \u00e9s una eina necess\u00e0ria i indispensable per facilitar al visitant, turista, professional o simplement curi\u00f3s, una visi\u00f3 resumida del nostre entorn.<\/p>\n

Cal demanar que el mapa, pl\u00e0nol o croquis amb el que transmetem la informaci\u00f3 sigui clar i entenedor. Que no suposi cap mal de cap per a qui intenta entendre\u00b4l i pugui rebre f\u00e0cilment la informaci\u00f3 que cont\u00e9.<\/p>\n

Sempre he recomanat, des de la meva experi\u00e8ncia, que a l\u2019hora d\u2019estudiar el territori, b\u00e9 sigui per modelar rutes tur\u00edstiques, culturals o esportives, b\u00e9 sigui amb finalitats de recerca hist\u00f2rica, geol\u00f2gica o d\u2019altres, es faci la consulta a diferents cartografies, amb suport paper o amb format digital tan de moda actualment.<\/p>\n

A continuaci\u00f3 tenim dues \u201ccaptures de pantalla<\/em>\u201d de dues plataformes diferents, per\u00f2 que mostren el mateix territori.<\/p>\n

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Si dediquem cinc minuts a estudiar els dos mapes veurem que, malgrat ser el mateix espai f\u00edsic, els top\u00f2nims s\u00f3n clarament diferents. S\u00f3n tan diferents que qualsevol que estigui fent un treball d\u2019aquesta zona i no estigui familiaritzat amb el territori tindr\u00e0 dificultats per recon\u00e8ixer i descriure el lloc.<\/p>\n

A primer cop d\u2019ull, les difer\u00e8ncies evidents per a tothom s\u00f3n que en el primer mapa hi apareix el nom de \u201cLes Raconades<\/em>\u201d, mentre que en el segon no*. La \u201cCova de la Platja<\/em>\u201d i el \u201cPont del Barranc del Gos<\/em>\u201d, en el primer, i la \u201cCova del Portet<\/em>\u201d i el \u201cPont del Barranc del Bosc\u201d<\/em>, en el segon**. Aquestes difer\u00e8ncies entre un i altre mapa fan evidents les errades en la topon\u00edmia de la cartografia elaborada pels organismes p\u00fablics de refer\u00e8ncia.<\/p>\n

Si l\u2019estudi el fem de manera m\u00e9s acurada, podrem veure que mentre el primer situa les coordenades a la part inferior esquerra, el segon ho fa a la part inferior dreta. En principi, que estigui en llocs diferents no \u00e9s important, per\u00f2 si ho \u00e9s que la informaci\u00f3 que aporten a un mateix punt on era situat el punter del ratol\u00ed en el moment de fer la captura sigui diferent encara que t\u00e8cnicament sigui la mateixa.<\/p>\n

M\u2019explico:<\/p>\n

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Com podeu veure, nom\u00e9s coincideixen el Datum i la projecci\u00f3, ETRS89 i UTM respectivament.<\/p>\n

Per als experts, la resta de dades FUS (HUSO) i els valors de la X i la Y s\u00f3n equivalents, per\u00f2 per a la resta de persones que llegeixen les coordenades, potser per introduir-les en un GPS, s\u00f3n totalment diferents. \u00c9s molt probable que el nostre GPS no entengui les primeres. Si esteu fent un treball de recerca ser\u00e0 inevitable utilitzar una calculadora geod\u00e8sica per poder \u201cnormalitzar\u201d les coordenades del lloc i situar-les al FUS natural.<\/p>\n

Una eina que fa pocs anys que l\u2019ICGC va posar a prova per fer la feina de comparar diferents plataformes \u00e9s el \u201cComparador de cartografies\u201d i la seva adre\u00e7a \u00e9s:<\/p>\n

http:\/\/betaportal.icgc.cat\/compare\/<\/a><\/p>\n

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Aix\u00ed es veu:<\/p>\n

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Segons la feina que estiguem fent o la informaci\u00f3 que vulguem transmetre podem utilitzar un o altre per\u00f2, i aix\u00f2 \u00e9s important, sempre amb una excel\u00b7lent qualitat de dades, cuidant els top\u00f2nims i els elements que es representen.<\/p>\n

Havent comprovat la imprecisi\u00f3 de la topon\u00edmia menor en diferents productes cartogr\u00e0fics, seria aconsellable la creaci\u00f3 d\u2019alguna iniciativa p\u00fablica a fi i efecte de vetllar per la correcci\u00f3 de les dades que apareixen en els mapes de diferents suports.<\/p>\n

__________<\/p>\n

* \u201cLes Raconades<\/em>\u201d tamb\u00e9 apareix en el segon mapa, per\u00f2 despla\u00e7at m\u00e9s de 1000 metres respecte del primer<\/p>\n

** \u201cCova del Portet\u201d<\/em> i \u201cCova de la Platja\u201d<\/em> s\u00f3n dues coves diferents, si b\u00e9 molt properes<\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

Deia fa uns anys Norman J.W. Thrower que el mapa \u00e9s la representaci\u00f3 simplificada de […]<\/p>\n","protected":false},"author":3,"featured_media":3120,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[52],"class_list":["post-3112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-el-mirador","tag-49-setembre-2018"],"_links":{"self":[{"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/posts\/3112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/comments?post=3112"}],"version-history":[{"count":2,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/posts\/3112\/revisions"}],"predecessor-version":[{"id":3121,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/posts\/3112\/revisions\/3121"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/media\/3120"}],"wp:attachment":[{"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/media?parent=3112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/categories?post=3112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sompirineu.cat\/senderia\/wp-json\/wp\/v2\/tags?post=3112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}