Photo of Andy Arthur

Andy Arthur

Fifty years later I'm pondering the final words of the Zen of Motorcycle Maintenance. 🏍 In terms of this larger pattern the lines at the end of this book still stand. We have won it. Things are better now. You can sort of tell these things. πŸͺ· Maybe I'm just sunburnt and it was just a dream as I reached the end of the audiobook I was listening to watching the Red Winged Black birds teary eyed. 🐦 πŸ‘€

Finding Peaks …

Finding Peaks …

Algonquin Peak

After studying the methods quite a bit, I’ve determined there is no real easy way to find peaks on mountains and report their exact elevation in QGIS. The best method I could come up with was to figure out the median point in the elevation for the map, then use that to isolate “mountains” and from there polygonize, create zonal statistics for each polygon, crop the DEM layer to each polygon then select the pixel that matched the peak. This can be done, but I couldn’t figure out how to automate it easily using the Graphical Modeler, so I would have to write a full plugin to do it. I decided it wasn’t worth the effort. In most cases, I didn’t care about the exact peak, and it would just be easier to add peaks to my maps on a case-by-case basis using a point layer with labels queried against the DEM layer.