{"action":"created","issue":{"url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1255","labels_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1255/labels{/name}","comments_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1255/comments","events_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1255/events","html_url":"https://github.com/gravitystorm/openstreetmap-carto/issues/1255","id":55388660,"number":1255,"title":"Rendering Wadi and Intermittent River/Stream","user":{"login":"RAytoun","id":10500102,"avatar_url":"https://avatars.githubusercontent.com/u/10500102?v=3","gravatar_id":"","url":"https://api.github.com/users/RAytoun","html_url":"https://github.com/RAytoun","followers_url":"https://api.github.com/users/RAytoun/followers","following_url":"https://api.github.com/users/RAytoun/following{/other_user}","gists_url":"https://api.github.com/users/RAytoun/gists{/gist_id}","starred_url":"https://api.github.com/users/RAytoun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/RAytoun/subscriptions","organizations_url":"https://api.github.com/users/RAytoun/orgs","repos_url":"https://api.github.com/users/RAytoun/repos","events_url":"https://api.github.com/users/RAytoun/events{/privacy}","received_events_url":"https://api.github.com/users/RAytoun/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2015-01-24T23:16:27Z","updated_at":"2015-01-25T10:39:57Z","closed_at":"2015-01-25T08:07:03Z","body":"@mkoniecz , @math1985 \r\nHi, my name is Ralph (RAytoun) and I have been a cartographer all my working life. I was Senior Cartographer in Philip's School and World Reference Atlas section...responsible for the research and compilation of all new mapping, additions and amendments for the full range of Philip's World Atlas products. I am at present a member of HOT and a principal tutor for the Missing Maps Project, London.\r\nI have raised a few points in this regard and have been pointed in your direction by Blake Girardot.\r\nI see this issue was under discussion in September last year. Math1985 mentions intermittent should be different to wadi which is quite correct....mkoniecz said wadi is a term for a whole valley as well as dry stream which is also correct but may I add that in the parched and arid areas where wadis abound the sides of these \"valleys\" are sheer cliff walls and the floor of the valley is a dry flat flood plain. The sides of the flood plain would be added the same as for river banks but the outline would be a pecked line with no fill or is sometimes depicted with a light brown stipple fill.\r\nMy points are...\r\nI would like to raise the issue of tags for waterway=river, waterway=stream and waterway=wadi.\r\nThe problem that exists with the existing tags is that there is no visual difference on the map for a stream (perennial) and a stream (intermittent) and the only other option is wadi which gives a blue pecked line.\r\nAccepted mapping standards for this would be to show:-\r\n all perennial rivers and streams as a continuous solid blue line (indicating that there is flowing water all year round) or solid blue outline (river banks) with a light blue fill.\r\n all non-perennial rivers and streams as a continuous blue pecked line (indicating that there is flowing water during the wet season but not the whole year). River banks would be pecked blue line with light blue fill.\r\nA wadi would be depicted with a continuous pecked brown line (indicating that it is dry watercourse and could be dry for years at a time...only flowing if there is a flash flood or unusually heavy rain). For wider wadis (valleys) a pecked brown outline with no fill or brown stipple fill.\r\nThis would then convey the correct meanings with symbols on the map and make reading the map a lot easier. The categories would still be searchable and distinguish between the three categories of water flow.\r\nThe proposed tags would then be\r\nwaterway=river ...... waterway= stream ...... continuous solid blue line\r\nwaterway=river_intermittent ...... waterway=stream_intermittent ..... continuous pecked blue line\r\nwaterway=wadi ..... continuous pecked brown line (a wadi can be so wide that another tag would be needed similar to the tag for river banks) waterway=wadi_bank which would still be a brown pecked line either with no fill or a brown stipple fill.\r\nThis would then ease the path for introducing the tags for perennial lakes with a solid blue outline and lighter blue fill, intermittent lakes with a blue pecked outline and a light blue fill and dry pans with a brown pecked outline with a brown stipple fill.\r\nIf it is deemed appropriate is there someone who could do this or help me?\r\nReference...... http://pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf"},"comment":{"url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/comments/71365583","html_url":"https://github.com/gravitystorm/openstreetmap-carto/issues/1255#issuecomment-71365583","issue_url":"https://api.github.com/repos/gravitystorm/openstreetmap-carto/issues/1255","id":71365583,"user":{"login":"RAytoun","id":10500102,"avatar_url":"https://avatars.githubusercontent.com/u/10500102?v=3","gravatar_id":"","url":"https://api.github.com/users/RAytoun","html_url":"https://github.com/RAytoun","followers_url":"https://api.github.com/users/RAytoun/followers","following_url":"https://api.github.com/users/RAytoun/following{/other_user}","gists_url":"https://api.github.com/users/RAytoun/gists{/gist_id}","starred_url":"https://api.github.com/users/RAytoun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/RAytoun/subscriptions","organizations_url":"https://api.github.com/users/RAytoun/orgs","repos_url":"https://api.github.com/users/RAytoun/repos","events_url":"https://api.github.com/users/RAytoun/events{/privacy}","received_events_url":"https://api.github.com/users/RAytoun/received_events","type":"User","site_admin":false},"created_at":"2015-01-25T10:39:57Z","updated_at":"2015-01-25T10:39:57Z","body":"Again thanks for the response. I am trying to find my way around and being\r\npointed to various sights where my only approach is to mention the problems\r\nI am having in the hope that I could eventually reach some kind of\r\ncompromise that suits everyone. Just one request....please do not do away\r\nwith wadi just yet, it has many specific functions as a wadi, dry gulch,\r\narroyo, wash, etc. to name a few uses in various parts of the world. You\r\nare spot on regarding the way I have been used to setting things up and\r\nwill try to adapt to the OSM pattern of approach. I look forward to seeing\r\nthe results of your rendering of intermittent rivers and streams.\r\nThanks for your help in pointing me in the right direction.\r\nIf you have any questions regarding symbols on a map please feel free to\r\nask. (Example..understanding what is meant by a wadi also being a valley)\r\nRegards\r\nRalph\r\n\r\nOn 25 January 2015 at 10:12, imagico <notifications@github.com> wrote:\r\n\r\n> I can see from the defensive responses that have ignored my points on the\r\n> rendering and prefer to attack me about \"not the place for tagging\" that I\r\n> appear to be not welcome.\r\n>\r\n> I am sorry if my reply appeared defensive but no one attacked you in any\r\n> way.\r\n>\r\n> If you think the representation of certain geographical features in\r\n> OpenStreetMap is insufficient (which i agree wholeheartedly to) the usual\r\n> way would be to:\r\n>\r\n>    1. develop a tagging scheme for those features based on established\r\n>    <http://wiki.openstreetmap.org/wiki/Verifiability> principles\r\n>    <http://wiki.openstreetmap.org/wiki/User:Joto/How_to_invent_tags>\r\n>    2. use this tagging to map things\r\n>    3. document your tags on the wiki\r\n>    4. get others to map things this way as well\r\n>    5. get the tagging to be rendered in this map style\r\n>\r\n> From classical cartography work you are probably used to a different\r\n> approach, i.e. first develop a classification scheme based on rendering\r\n> considerations and then map things according to this scheme but the above\r\n> is how it is done in OSM. This forum only deals with the last point and\r\n> this requires the first four things to be done already at least to some\r\n> extent. I merely tried to point you to this by summarizing the current\r\n> state of these things wrt. wadi/intermittent waterway mapping.\r\n>\r\n> —\r\n> Reply to this email directly or view it on GitHub\r\n> <https://github.com/gravitystorm/openstreetmap-carto/issues/1255#issuecomment-71364428>\r\n> .\r\n>"}}