Changes between Version 39 and Version 40 of Introduction
- Timestamp:
- 2012-08-16T00:16:49+02:00 (13 years ago)
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Introduction
v39 v40 12 12 '''Tag:''' Tags describe what each node or way represents. Tags are organized into "keys" and "values." Keys are basically larger categories, such as "Highway" or "Land Use," while values are specific features, such as "Primary Road" or "Residential Street," and "Residential" or "Retail" land use. 13 13 14 Have a look at [Help/Concepts/Object Objects - The basic building blocks of OSM data and maps] for more information. 14 15 15 If a road or track or path is curved, the curve is approximated using a number of nodes within a way, and short lines connecting them. If a way has a direction, that is indicated partly by using tags. For example, "oneway=yes" is a road that goes only in one direction. (See "Conventions in Creating Certain Types of Ways" at the bottom of this page for special considerations when creating a one-way road.) Other tags refer to being on the left and right of the direction of travelalong the way.16 If a road or track or path is curved, the curve is approximated using a number of nodes within a way, and short lines connecting them. If a way has a direction, that is indicated partly by using tags. For example, "oneway=yes" is a road that goes only in one direction. (See [#ConventionsinCreatingCertainTypesofWays Conventions in "Creating certain types of ways"] at the bottom of this page for special considerations when creating a one-way road.) Other tags refer to being on the left and right of the direction of way along the way. 16 17 17 18 == Starting JOSM == … … 66 67 A couple of other points about creating ways. 67 68 68 1) Dual-carriage ways (divided roads such as motorways, interstate highways, etc.) should be drawn as two separate parallel ways, with each carriage way being a different direction. 69 70 2) If a street is one-way (including the individual carriage ways of a dual-carriage way), that way '''should be drawn in the direction of travel'''. 71 72 3) Key-and-value tagging is case sensitive. All keys should be entered in '''lower case'''. 69 1. Dual-carriage ways (divided roads such as motorways, interstate highways, etc.) should be drawn as two separate parallel ways, with each carriage way being a different direction. 70 1. If a street is one-way (including the individual carriage ways of a dual-carriage way), that way '''should be drawn in the direction of travel'''. 71 1. Key-and-value tagging is case sensitive. All keys should be entered in '''lower case'''. 73 72 74 73 ----
