I am new to QGIS and barely getting the hang of it so this question is quite simple. I have a route in a GPX file a generated from a PPK I took along the shore during a high tide. I would like to generate transects perpendicular to this track with a spacing of, lets say every 5 m and a length of 20 m each. Any suggestions as to what pluggin or tool I may use to delimit this area?
Densify by interval and set interval to
[EDIT] following comment by @ndawson;
(2) There is a new geoalgorithm Transect (QGIS 3.0
Just activate this tool and set
length to 20 and
Angle to 90, then select
Below... useless part... please ignore...
Extract vertices on the Densified layer.
(3) Open the attribute table of Vertices layer to see if there is
angle field. (You can skip this).
Geometry by expression and (aa) Select
Vertices as input layer, (bb) Select
Line as output geometry and (cc) Click on large epsilon mark.
(5) Enter this expression:
make_line($geometry, translate(translate($geometry, 20, 20), 20*cos(radians("angle"+90)), 20*sin(radians("angle"+90))))
Final output is like the above... sorry, line length are not kept at 20m. Hopefully this gets you started.