Changes between Version 8 and Version 9 of Introduction
- Timestamp:
- 2007-10-10T14:49:18+02:00 (18 years ago)
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Introduction
v8 v9 7 7 8 8 A "node" represents the start and end of a segment, and should be wherever 9 there is a significant change in direction, or a junction. "Segments"are9 there is a significant change in direction, or a junction. Segments are 10 10 then drawn between each node, with curves being made up of a series of 11 segments. Lastly a road will be represented bya "way", which is a group of11 segments. A collection of these segments forms a "way", which is a group of 12 12 segments which are collected together. In general in urban areas it would 13 13 be usual for most roads to be formed into only one way, but when you get out … … 30 30 hover the mouse over it a tip comes up saying "add a node to the map". If 31 31 the button looks like a series of three squares with lines between them, 32 and the tip says "add a node into an existing segment", then click the tiny32 and the tip says "add a node into an existing way", then click the tiny 33 33 black triangle on the node button and select the single square. To add a 34 34 node, highlight the node button, either by clicking the 4th button in the … … 40 40 41 41 Once you have a series of nodes, the next thing you'll need to do is to draw 42 segmentsbetween them. Click the button below the node button, or hit "g"42 a way between them. Click the button below the node button, or hit "g" 43 43 on the keyboard. Move the mouse cursor over a node, left click and hold 44 44 down the left mouse button whilst dragging the cursor to an adjacent node, 45 the release the left mouse button. A segment, represented by a line between 46 the nodes should now exist. These will initially be shown in white since as 47 you draw them they are deemed to be selected. When you have drawn all the 48 segments in a way, you need to highlight all of them. If you have just been 49 creating them they all will be highlighted anyway, but if you need to add 50 old segments (shown as green lines between nodes) then click the select menu 51 button and holding down the shift key, click on all the segments you want to 52 form the way. Once all the segments are selected click the way button, the 53 sixth button down, or hit "w" on the keyboard, and a dialog box should 54 appear saying "create a way out of x segments", click yes and you have 55 created a way, initially it will be shown in white, but if you click the 45 the release the left mouse button. A line between 46 the nodes should now exist. Initially it will be shown in white, but if you click the 56 47 select button, or click "s" on keyboard, and then left click away from the 57 48 way, you will de-select it and it should be shown in blue. … … 77 68 A couple of other points about creating segments and ways. 78 69 79 1) Dual carriage ways should be drawn as two separate parallel sets of segments, with each carriage way being a different way.70 1) Dual carriage ways should be drawn as two separate parallel ways, with each carriage way being a different way. 80 71 81 2) If a street is one way (including the individual carriageways of a dual carriageway) the segmentsshould be drawn in the direction of travel.72 2) If a street is one way (including the individual carriageways of a dual carriageway) the way should be drawn in the direction of travel. 82 73 83 3) If a street is not one way, then to make the rendering in Osmarender look correct: 84 85 all segments which will comprise a way should be drawn in the same direction. 86 87 street names are rendered in the direction of travel, so it is helpful if segments are drawn left to right, then the street names appear the correct way up 88 89 4) All segments in a way should be in order, this will be done automatically by JOSM if all the segments are turned into a way in one go, but you can add new segments to an existing way, and this sometimes causes the order to get jumbled up. Ways can be re-ordered using [wiki:Help/Menu/Edit Edit > Reorder segments]. 90 91 5) The key / value tagging is case sensitive, all keys should be entered in 92 lower case 74 3) The key / value tagging is case sensitive, all keys should be entered in lower case. 93 75 94 76 Back to [wiki:Help Main Help]