{"id":831,"date":"2016-08-12T17:12:26","date_gmt":"2016-08-12T16:12:26","guid":{"rendered":"https:\/\/www.dafyddelfryn.cymru\/blog\/?p=831"},"modified":"2021-07-26T12:33:05","modified_gmt":"2021-07-26T12:33:05","slug":"uchder-adeiladau-caerdydd","status":"publish","type":"post","link":"https:\/\/www.dafyddelfryn.cymru\/blog\/uchder-adeiladau-caerdydd\/","title":{"rendered":"Mapio Uchder Adeiladau Caerdydd"},"content":{"rendered":"<h2>Uchder Adeiladau<\/h2>\n<p>Yn ddiweddar, dwi wedi bod yn gweld lot o fapiau ar y we yn dangos uchder adeiladu yn rhai o drefi a dinasoedd mwya&#8217;r byd &#8211; fel y rhain yn dangos rhai o Loegr yn y Guardian &#8211; <a href=\"https:\/\/www.theguardian.com\/cities\/gallery\/2016\/jun\/29\/building-heights-english-cities-mapped-lidar-data\" target=\"_blank\" rel=\"noopener\">Linc<\/a><\/p>\n<p>Gan nad oedd neb i weld wedi creu un o Gymru eto &#8211; mi es i ati i greu un sydyn o Gaerdydd.<\/p>\n<p><!--more--><\/p>\n<h2>Data<\/h2>\n<p>Dyw creu mapiau fel hyn ddim yn anodd (mae \u00a0&#8216;na ganllawiau gwych yma &#8211; <a href=\"http:\/\/blog.nadnerb.co.uk\/?p=209\" target=\"_blank\" rel=\"noopener\">linc<\/a>)<\/p>\n<p>Y broblem fel arfer yw cael gafael ar y data craidd, sef yn yr achos yma, data DSM, DTM ac \u00f4l troed yr adeiladau. Yn ffodus, gyda mwy o bwyslais yn cael ei roi ar ddata agored, mae&#8217;n bosib lawr lwytho popeth sydd ei angen ar gyfer y dadansoddiad yn rhad ac am ddim.<\/p>\n<p>Mae&#8217;r data DTM a DSM ar gael gan Gyfoeth Naturiol Cymru (<a href=\"http:\/\/lle.gov.wales\/GridProducts#data=LidarCompositeDataset\" target=\"_blank\" rel=\"noopener\">linc<\/a>) a mae&#8217;r data \u00f4l troed ar gael fel rhan o ddata OpenData Ordnance Survey (<a href=\"https:\/\/www.ordnancesurvey.co.uk\/business-and-government\/products\/os-open-map-local.html\" target=\"_blank\" rel=\"noopener\">linc<\/a>).<\/p>\n<h2>Y Map<\/h2>\n<p>Dyma&#8217;r map terfynnol:<\/p>\n<div id=\"attachment_837\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-837\" data-attachment-id=\"837\" data-permalink=\"https:\/\/www.dafyddelfryn.cymru\/blog\/uchder-adeiladau-caerdydd\/caerdyddbach\/\" data-orig-file=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach.png\" data-orig-size=\"2048,1448\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Caerdydd\" data-image-description=\"&lt;p&gt;Caerdydd&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Caerdydd&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach-300x212.png\" data-large-file=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach-1024x724.png\" class=\"wp-image-837 size-large\" src=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach-1024x724.png\" alt=\"Caerdydd\" width=\"1024\" height=\"724\" srcset=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach-1024x724.png 1024w, https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach-300x212.png 300w, https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach-768x543.png 768w, https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/CaerdyddBach.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><p id=\"caption-attachment-837\" class=\"wp-caption-text\">Caerdydd<\/p><\/div>\n<p>Am fersiwn mwy &#8211; lawrlwythwch y fersiwn PDF yma:\u00a0<a href=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Caerdydd.pdf\" target=\"_blank\" rel=\"noopener\">Caerdydd<\/a><\/p>\n<p>Be da chi&#8217;n feddwl? Lle arall yng Nghymru sa&#8217;n edrych yn dda mewn map o&#8217;r fath?<\/p>\n<h2>Diweddariad<\/h2>\n<p>Dwi wedi defnyddio&#8217;r un data i greu y map yma &#8211; cysgodion Caerdydd<\/p>\n<p><a href=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"857\" data-permalink=\"https:\/\/www.dafyddelfryn.cymru\/blog\/uchder-adeiladau-caerdydd\/cysgod_caerdydd\/\" data-orig-file=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd.png\" data-orig-size=\"2048,1448\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Cysgod_Caerdydd\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd-300x212.png\" data-large-file=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd-1024x724.png\" class=\"aligncenter size-large wp-image-857\" src=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd-1024x724.png\" alt=\"Cysgod_Caerdydd\" width=\"1024\" height=\"724\" srcset=\"https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd-1024x724.png 1024w, https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd-300x212.png 300w, https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd-768x543.png 768w, https:\/\/www.dafyddelfryn.cymru\/blog\/wp-content\/uploads\/2016\/08\/Cysgod_Caerdydd.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Hwyl<\/p>\n<p>&nbsp;<\/p>\n<p>Dafydd<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uchder Adeiladau Yn ddiweddar, dwi wedi bod yn gweld lot o fapiau ar y we yn dangos uchder adeiladu yn rhai o drefi a dinasoedd mwya&#8217;r byd &#8211; fel y rhain yn dangos rhai o Loegr yn y Guardian &#8211; Linc Gan nad oedd neb i weld wedi creu un o Gymru eto &#8211; mi es i ati i greu un sydyn o Gaerdydd.<\/p>\n","protected":false},"author":1,"featured_media":840,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","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":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[2,4,6],"tags":[11],"class_list":["post-831","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-cymraeg","category-mapiau","tag-mapiau-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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