Miles From Delmar

|

The other day, I was wondering roughly how far some of the places I've been are from home. So I said why don't I use a bulls-eye style multi-layer buffer, and make circles every 25 miles from home out 500 miles. The farthest I've been away from home in the past decade is West Virginia and the Blue Ridge Parkway, which is almost 500 miles away as the crows eye sees.

Overlay_Intersects and Buffers in QGIS 3.2x

|

A common GIS task is to suppress duplicated points from other layers. What if those points don’t line up perfectly? Then you can’t use overlay_intersects but you can use intersects with a buffer. The key to using buffer with a layer is to use the aggregate function inside of the buffer function, so the layer appears as a MULTIPOLYGON or MULTIPOINT to the buffer command. Then just do an ordinary NOT intersects between the current layer and the buffered layer.

NOT intersects($geometry,
buffer(
aggregate('other_layer_compare_against', 'collect', $geometry)
,500 )
)

Red Creek Crossing

|

Down by the Red Creek, where much of the rain collects from storms hitting the Allegheny Front it can be very soggy, even when the rest of the Sods are super dry. Like all federal wilderness areas, bridges are not allowed, so streams are crossed by stones.

Taken on Friday October 11, 2019 at Dolly Sods Wilderness.

Moose River Plains – Mile Points

|

This interactive map shows the mile points along the Cedar River - Limekiln Lake Road. They probably should be fairly close to the mile markers along the road.