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Add help topic on relations

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Fixes #1708
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John Firebaugh
2013-08-22 13:32:19 -07:00
parent 5158782f34
commit b5bd015cc2
3 changed files with 39 additions and 2 deletions
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data/core.yaml
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@@ -487,6 +487,41 @@ en:
You can delete a building by clicking on it to select it, then clicking the
trash can icon or pressing the 'Delete' key.
relations: |
# Relations
A relation is a special type of feature in OpenStreetMap that groups together
other features. For example, two common types of relations are *route relations*,
which group together sections of road that belong to a specific freeway or
highway, and *multipolygons*, which group together several lines that define
a complex area (one with several pieces or holes in it like a donut).
The group of features in a relation are called *members*. In the sidebar, you can
see which relations a feature is a member of, and click on a relation there
to select the it. When the relation is selected, you can see all of its
members listed in the sidebar and highlighted on the map.
For the most part, iD will take care of maintaining relations automatically
while you edit. The main thing you should be aware of is that if you delete a
section of road to redraw it more accurately, you should make sure that the
new section is a member of the same relations as the original.
## Editing Relations
If you want to edit relations, here are the basics.
To add a feature to a relation, select the feature, click the "+" button in the
"All relations" section of the sidebar, and select or type the name of the relation.
To create a new relation, select the first feature that should be a member,
click the "+" button in the "All relations" section, and select "New relation...".
To remove a feature from a relation, select the feature and click the trash
button next to the relation you want to remove it from.
You can create multipolygons with holes using the "Merge" tool. Draw two areas (inner
and outer), hold the Shift key and click on each of them to select them both, and then
click the "Merge" (+) button.
intro:
navigation:
title: "Navigation"