Topography
Apr. 9th, 2020 09:53 amThreshold is bendy.
I literally map things professionally. That is, with a compass and a chain (measuring tape, basically) or with a GPS, I translate physical features on the ground to schematics or maps. Sometimes I use satellite imagery to help or to map an area.
I cannot accurately map threshold. I've used a chain and compass. I've used satellite imagery. I remember trying with a GPS once but I don't think I got anything accurate enough. None of these methods resulted in a map that 1) looks like where my property and fencing is and 2) accord with each other. That is to say, if I map the fences using imagery, they will not be anything close to the actual lengths when I go measure them. Conversely, if I measure fences and angles and draw them out, nothing ends up the right shape or in the right place. I'm close to an airport, so I'm not legally allowed to fly a drone over this space.
This is weird. The property is very very gently rolling, with no extreme topography; topography often distorts this sort of thing. It's pretty straightforward: a rectangle with some quadrilaterals formed by fencing.
I've been trying various methods for 2.5 years now. I'm thinking about having another go with a chain and compass because I really want a to-scale map to do garden planning on. But. Chain and compass on 2' of soft snow is a little awkward.
I have some sketch maps that are decidedly not to scale that I can conceptualize on, and no doubt I will continue using those.
Or maybe this time the mapping will work?
I literally map things professionally. That is, with a compass and a chain (measuring tape, basically) or with a GPS, I translate physical features on the ground to schematics or maps. Sometimes I use satellite imagery to help or to map an area.
I cannot accurately map threshold. I've used a chain and compass. I've used satellite imagery. I remember trying with a GPS once but I don't think I got anything accurate enough. None of these methods resulted in a map that 1) looks like where my property and fencing is and 2) accord with each other. That is to say, if I map the fences using imagery, they will not be anything close to the actual lengths when I go measure them. Conversely, if I measure fences and angles and draw them out, nothing ends up the right shape or in the right place. I'm close to an airport, so I'm not legally allowed to fly a drone over this space.
This is weird. The property is very very gently rolling, with no extreme topography; topography often distorts this sort of thing. It's pretty straightforward: a rectangle with some quadrilaterals formed by fencing.
I've been trying various methods for 2.5 years now. I'm thinking about having another go with a chain and compass because I really want a to-scale map to do garden planning on. But. Chain and compass on 2' of soft snow is a little awkward.
I have some sketch maps that are decidedly not to scale that I can conceptualize on, and no doubt I will continue using those.
Or maybe this time the mapping will work?