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Editing existing features

Sajjad Anwar edited this page Jun 10, 2020 · 10 revisions

Editing attributes and presets

  • Select the feature to edit from the map, and then from the drawer after confirming the details
  • Press the ‘pencil’ button to start editing
  • Edit attributes by adding new fields, removing existing tags, or introducing additional tags
  • To change the preset of the feature, press the preset icon. Then follow steps similar to adding a new feature.
  • Changing the preset of a feature that is part of a relation is currently not allowed.

Editing geometry of points

  • To change the location of a point, press ‘Edit coordinates’. Move the crosshair to the desired location, and confirm by pressing the ‘tick’ button
  • When done editing, press the ‘tick’ button, enter an optional changeset comment, and press save

Editing geometry of lines and polygons

  • Select a line or polygon
  • In the feature detail screen, press 'Edit geometry'. If the Edit coordinates button is not available it is because Observe currently doesn't support editing MultiPolygons and MultiLineStrings.
  • Select any node to move, delete or merge. Or add new nodes.
  • When done, press the 'tick' button to continue.

When editing members of a relation, a warning is presented to the user at all times. Deleting, merging, and changing the preset of a feature is not allowed when they are part of a relation.

edit-way-polygon

Adding a node

  • In the edit way mode, new nodes can be added only to existing ways
  • Move the crosshair to the desired way, and notice the snapping node
  • Snapping nodes are styled differently - if a new node is going to be created it's shown as a white circle. In case it's snapping to an existing node, it'll be a blue circle
  • Press '+' to add a new node at that location

add-node-way

Moving a node

  • In the edit way mode, select any node of the way
  • Move the crosshair to the desired location
  • Press the 'Move' button to relocate the node
  • The map will now render changes to the way as well as any other ways that the selected node is a member of

move-way-node

Deleting a node

  • In the edit way mode, select any node of the way
  • Press the 'Trash' button to delete this node from the way
  • The map will render the changes to the way as well as any other ways shared by this node
  • Note that a line with less than 2 nodes and a polygon with less than 3 nodes will be deleted

way-delete-node

Merging a node

  • Merging allows to remove duplicates and snap one node over another. In most cases, merging would delete the source node
  • In the edit way mode, select any node of the way
  • Move the crosshair over the node to be merged to
  • Snapping nodes are styled differently - if a new node is going to be created it's shown as a white circle. In case it's snapping to an existing node, it'll be a blue circle
  • Press the 'Move' button to merge the nodes

merge-way-nodes