Tools > Follow line

Keyboard shortcut: F

Makes easier to draw a line that shares points with another line.

Aimed at those who want to draw two or more lines related with each other, but carry different information, I.e. a river that acts as boundary at some part of its course or a meadow along a riverbank.

Usage

Manually extend the new line to at least two consecutive nodes of the line to follow.

Then press F so many times as needed. The new line is automatically extended point by point along the path of the existent one.

If the new line were to follow a different path (after a junction or at the end of the guide-line), simply extend it manually until there is another line to follow.

The result: a lot of time saved and no skipped or wrongly placed nodes!

Note

Instead of overlapping ways like this, use a boundary relation to include the relevant split section of river with other boundary=administrative ways.

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