💧🌏 Greg Cocks<p>Pacific Crest Trail Viewshed [animation]<br />--<br /><a href="https://youtu.be/tmY27ZIVfpA" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="">youtu.be/tmY27ZIVfpA</span><span class="invisible"></span></a> &lt;-- shared video<br />--<br />H/T Doug Newcombe<br />“This animation is a viewshed of the Pacific Crest Trail. A viewshed shows all surrounding terrain that is visible from a given point on the trail. The viewshed is taken at 1/10 of a mile increments. Visible terrain is light colored, invisible terrain is darker. Views are without regard for vegetation or tree cover…”<br />“The following viewsheds were created with GDAL, one tif for every tenth <br />of a mile along the 2,650 mile Pacific Crest Trail. Stitched together <br />with ffmpeg..”<br /><a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="tag">#<span>GIS</span></a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="tag">#<span>spatial</span></a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="tag">#<span>mapping</span></a> <a href="https://techhub.social/tags/viewsheds" class="mention hashtag" rel="tag">#<span>viewsheds</span></a> <a href="https://techhub.social/tags/spatialanalysis" class="mention hashtag" rel="tag">#<span>spatialanalysis</span></a> <a href="https://techhub.social/tags/3D" class="mention hashtag" rel="tag">#<span>3D</span></a> <a href="https://techhub.social/tags/elevation" class="mention hashtag" rel="tag">#<span>elevation</span></a> <a href="https://techhub.social/tags/Pacific" class="mention hashtag" rel="tag">#<span>Pacific</span></a> <a href="https://techhub.social/tags/PNW" class="mention hashtag" rel="tag">#<span>PNW</span></a> <a href="https://techhub.social/tags/PacificCrestTrail" class="mention hashtag" rel="tag">#<span>PacificCrestTrail</span></a> <a href="https://techhub.social/tags/DEM" class="mention hashtag" rel="tag">#<span>DEM</span></a> <a href="https://techhub.social/tags/GDAL" class="mention hashtag" rel="tag">#<span>GDAL</span></a> <a href="https://techhub.social/tags/ffmpeg" class="mention hashtag" rel="tag">#<span>ffmpeg</span></a> <a href="https://techhub.social/tags/viewshed" class="mention hashtag" rel="tag">#<span>viewshed</span></a> <a href="https://techhub.social/tags/animation" class="mention hashtag" rel="tag">#<span>animation</span></a> <a href="https://techhub.social/tags/hiking" class="mention hashtag" rel="tag">#<span>hiking</span></a> <a href="https://techhub.social/tags/trail" class="mention hashtag" rel="tag">#<span>trail</span></a> <a href="https://techhub.social/tags/opensource" class="mention hashtag" rel="tag">#<span>opensource</span></a></p>