QGIS – How to Export Coordinates When Clicking on Points

Question

Assumed I click around on a map, while I need to export the coordinates of the points where I have clicked into a simple text file. In best case, writing into the text file should be performed automatically.

Example:

1. Mouse click 1 will write 52.516417, 13.378361 into the table
2. Moving the mouse
3. Mouse click 2 will write 52.556877, 14.358861 into the table
4. Moving the mouse
5. Mouse click 3 will write current coordinates into the table

Background:

OpenStreetMap is using polygon lines to visualize streets. I want to create a custom route along specific streets and hereby export the coordinates of the points where I have clicked.

Is this possible in OpenStreetMap or QGIS?

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The approach of eurojam is great! Unfortunately, it does not work on my very old version of QGIS as I receive the following error:

Is this caused due to old python or due to old QGIS? Would it be possible to refactore the python code so it works on QGIS 2.14.11 as well?

Answer 1

one simple solution would be to use Layeractions and log the clicked coordinates within the Log Messages from QGIS:

1. Open the Properties of your OSM Street layer and go to the Actions tab
2. Press Add
3. Define a Python Action
4. Enter the Code

The Code fragment:

QgsMessageLog.logMessage( "[% @click_x %] ,[% @click_y %]", tag='Coordinates', level=Qgis.Info)

QGIS2.14 you can try:

QgsMessageLog.logMessage( "[% @click_x %] ,[% @click_y %]") 

1. Choose the Action from the Toolbar and click in on the Roadlayer
2. Open the message log
3. In the message logs there will be a new tab: coordinates where the clicked positions will be listet. you can copy and paste them from there...