Activity Feed › Discussion Forums › Strictly Surveying › Hey, It’s Upside Down
-
Hey, It’s Upside Down
Posted by not-my-real-name on April 30, 2023 at 11:29 pmI really dislike plans that are drawn with the north arrow facing down. The Department of Transportation does this, presumably so that the stationing goes from left to right.
I used to try to read the plan upside down as I calculate the base line and side lines. Now I just calculate the plan as it is and rotate it after I am finished.
mkennedy replied 1 year, 4 months ago 13 Members · 20 Replies -
20 Replies
-
My experience with DOT plans, even from the dark ages, has the stationing increasing either from south to north or from west to east. Exceptions do occur, of course.
-
I have to admit, upside down north arrows bother me as well. I generally keep everything rotated north for simplicity.
-
For small lot site plans, most people locally prefer to see the street at the bottom of the sheet. To me, it seems like a more natural way to view the site.
North ends up being in any direction. Who cares? I don’t. This is not cartography.
If north has to always be toward the top of the sheet, why do we even need north arrows???
-
Cartography 101, North is always up!
When I look up, I see the South Celestial Pole…
.
Â
Â
-
I thought that was the name of a strip joint in Atlanta.
Â
BTW, have never been to Atlanta.
Mrs. Cow must be lookin’ over your shoulder. Â
When she leaves the room, please tell us the name of your favorite South Celestial Pole dancer, and how her family tree connects back to someone you know outside the world of dollar bills in g-strings.
Â
-
Where is this world? Â
“the world of dollar bills in g-strings”
and what is a g-string?
Perhaps your special knowledge in this arena should be shared with the rest of us innocent lads.
-
Personally, I blame Mercator for all your guys maps being wrong.
-
I do work south of the equator occasionally, but we still consider north to be up on the maps. And the published maps (i.e. 1:50,000 series) have it that way as well.Â
-
I had a realtor tell me my map was upside down because the road was at the top on the property not the bottom as I had shown it.Â
-
@john-hamilton I did some work at the equator and the survey geek in me had to set a few points at 0 just so I could say i stood on both sides lol.
-
@john-hamilton I did some work at the equator and the survey geek in me had to set a few points at 0 just so I could say i stood on both sides lol.
My first trip to Ecuador I went to the “tourist” equator…
My third trip was with several surveyors (survey tourism) from the US.
Â
Â
I had a Trimble R10 with RTX. We went to the “real” equator, and found a disk set by the IGM (Instituto Geografico Militar, a combination NGS/USGS).
Â
I took a RTX observation on it, and found it to be a bit off of 0°00’00”, so I staked to the equator (ITRF14).Â
. hmm…but it did have a date (2005) on it, so I checked the velocity of a nearby CORS, and that was how much the South American Plate had drifted over that many years,Â
Â
Â
-
@john-hamilton That is neat. I was in uniform when I was working along the equator. I had done some static control and absolute positioning on WGS84 (xxxx) As I was working and checking some of the data and other topo work I was like hey lets set a few points at 0. So we did . But no pictures unfortunately. I only have memories of some of those jobs.
-
And then there’s South African topographic maps, where North is still ‘up’ but the axes are x/southing and y/westing.
Â
I’m just one of those evil GIS people. Bwah-hah-hah! Seriously, I do coordinate systems and transformations at Esri.
Log in to reply.