I didn't see any mention for measure tool in OL 3 API. Is there an alternative / a way to use a measure tool (line & area) with OL 3 ?
Measuring is easily accomplished with an
ol.interaction.Draw on the application level. See http://ol3js.org/en/master/examples/measure.html for the official example demonstrating this.
link seems broken here is working link .
The latest example for ol-measurments: https://openlayers.org/en/latest/examples/measure.html