Questions tagged [land-survey]
The measurement of landscape features and their positions.
128
questions
2
votes
1
answer
144
views
How to translate tract map bearings/distances to coordinates for property corner survey using RTK GPS [closed]
I have a tract map delineating property lines using distances and bearings. It looks something like this (screenshot of part of it):
My goal is to locate the exact property corners of one of these ...
- 129
0
votes
1
answer
15
views
How to get the row and column of US PLSS sections?
How to get the row and column of US Public Land Survey System (PLSS) township sections? Sure, looking at a diagram I can quickly fill in a lookup table by hand,
section,column,row
1,6,6
2,5,6...
36,6,...
- 314
0
votes
1
answer
67
views
How do I tie survey data to a coordinate system?
I have Record of Survey drawings from Marin County that I can plot in CAD, but I am not sure the best/easiest way to place the lot lines into a coordinate space. I found some benchmarks in the County ...
0
votes
0
answers
25
views
Why basemap is not showing in QGIS with custom NTv2 crs?
I set up a custom CRS that uses a precise NTv2 transformation. I only have basemaps to test it with, but having more precise basemaps underlayed beneath my surveyed data is my primary goal. I am aware,...
- 766
2
votes
1
answer
97
views
What is the likely error of the triangulation of Gauss' survey?
I have been trying to figure out the famous Gauss' big triangle measurement, but not being particularly well-versed in geodesy (I come at this from a physics perspective), I have been having some ...
- 129
0
votes
0
answers
92
views
UTM survey coordinates not coming in correctly
I am a QGIS noob but semi experienced in Arc and other GIS softwares. I am trying to bring in points staked out in NAD83 UTM Zone 15N but they won't come in right on QGIS. I've changed the map CRS to ...
- 1
0
votes
0
answers
41
views
For high scale applications (Utility networks) should you prefer coords precision or basemaps consistency?
My context is surveying utility networks at scale.
I have precision (RTK) surveying data and see some inconsistencies with the usual basemaps we (me as well as my clients) use in our day to day work : ...
- 83
0
votes
0
answers
92
views
Find land parcel coordinates in Google Earth
A parcel of land (Lot 1, Blk-52 of the subdivision survey
Psd-05-023701, being a portion of Phase 2, Psd-05-022167), situated in
Barangay Alawihao, Municipality of Daet, Province of Camarines Norte,
...
1
vote
0
answers
293
views
GPS latitude, longitude, elevation, and Total Station's Coordinates - can they be used together?
I have used DGPS to get the coordinates (lat, long) using UTM projection, and elevation (height above ellipsoid) for different points (set a). If I use one of the collected points location to setup ...
- 163
0
votes
1
answer
196
views
Field Maps with ArduSimple GNSS
I was able to use ArduSimple RTK GNSS normally with Esri Collector. Now with Field Maps it behaves strange. I have an NTRIP subscription and my integration app Lefebure NTRIP works great. It can ...
- 1
1
vote
1
answer
229
views
Getting Surveyor Coordinates into QGIS
I am trying to add a polygon on a map using the Add Polygon Feature in QGIS. I have a diagram from the South African Surveyor General. There is no way of using the Georeferencer in QGIS in order to ...
- 11
1
vote
0
answers
56
views
Does US Survey Foot have inches?
From time beyond my remembrance, there are 12 inches in 1 foot. Now later in life, I get introduced to the US Survey Foot and Mile. I see all these calculations for converting between Meters and these ...
1
vote
1
answer
130
views
Entering curve 6 call out in traverse table using ArcMap
(Line 5) South 88-58'-07" West 60.00 feet to the southeasterly terminus of a non-tangent curve concave to the southwest and having a radius of 13 feet, a radial of said curve to said terminus ...
- 61
1
vote
0
answers
48
views
How to create a roadway using a topo values shapefile (survey points data) in Sketchup Pro?
I am a GIS Technician, new to Sketchup, I would like to know how to create a roadway in Sketchup Pro using a shapefile which is a survey points data with elevations in meters.
The topographic data is ...
- 11
1
vote
0
answers
120
views
Bearing convergence in digitizing property surveys
I'm digitizing and stitching together a number of adjacent/overlapping property surveys.
The most recent ones provide clear UTM/MTM grid bearings and distances, and in some cases coordinates of ORPs, ...
- 7,788
5
votes
1
answer
645
views
QGIS transformation local coordinate system to UTM35
I am creating a geo database for an archaeological excavation. We want to put data from a local system and from UTM35 in the same QGIS-project. I have Ground Control Points and I calculated ...
- 105
1
vote
3
answers
18k
views
Locating land title technical description on Google Maps
I am planning to buy a certain property but I'm too far away from where it's located to check it personally.
The seller sends me a technical description of the property and I'm trying to locate it on ...
- 113
1
vote
0
answers
104
views
How to enter survey coordinates into parcel fabric traverse grid?
I have a survey that only gives me the coordinate points for a parcel I need to draw into the parcel fabric. I am used to seeing bearings and distances - how do I take these coordinate points and turn ...
- 31
0
votes
0
answers
35
views
Area measurement validation: ellipsoid vs geoid
I try to validate area measurements on orthomosaics using objects of known size on the ground. I'm working on centimeter level measurements.
As far as i understand an orthomosaic in WGS 84 is ...
- 131
0
votes
1
answer
312
views
What do the acronyms OBT and OCIP mean on a survey plan?
When looking at survey plans for British Columbia, Canada, there are various acronyms used to describe survey markers. Ones that I do know include:
BT - bearing tree
CIP - capped iron post
PP - "...
- 111
0
votes
0
answers
722
views
Transforming Cassini coordinates to UTM
Why is it that when I transform certain Cassini coordinates to UTM, they give negative UTM coordinates, which should not be the case. Note that the equator passes through this particular area of ...
- 1
3
votes
1
answer
515
views
Adding a land survey to QGIS Canvas
I'm having difficulty adding land survey information to QGIS. What I need to do is add the survey boundaries of oil and gas leases, so that I can overlay additional data associated with land ...
- 211
0
votes
0
answers
210
views
Getting the latitude and longitude coordinates (to plot 2D) from a well survey
I basically want to do what you did here How to create a layer of directional/horizontal wells?.
I am able to get the coordinates from a well survey to create a shapefile to be able to visualize the ...
2
votes
0
answers
92
views
Shifting points along normal vector to path
I have list of points which are connected with line in "zig-zag" fashion:
Using QGIS, I'm trying to create a line connecting all the middle or inside points and then shift all outside points to this ...
- 21
5
votes
2
answers
216
views
Cheap relative positioning
I have a 6 acre permaculture farm, and I would like to be able to plant something at a location, log the location, and be able to find it again to within about a foot accuracy.
I do not need the ...
- 161
3
votes
0
answers
147
views
Recreate a Local Custom Coordinate System from Survey Data in GIS?
I have a .DWG file of a series of survey points that has no associated projection file with it. The surveying group I received the data from states that the system they use is a local coordinate ...
- 613
3
votes
1
answer
2k
views
Can QField record GPS Z-Value
We are a land survey company and are considering using QField to perform asset surveys for local government agencies.
Looking through the documentation it appears that QField can do most of what we ...
- 45
-2
votes
1
answer
402
views
Seeking list of geodetic benchmark locations for all of Canada? [duplicate]
Does anyone know where I can find a list of geodetic benchmark locations for all of Canada?
I am looking for a few specific control monuments in Arctic Canada with accurate coordinates
- 11
1
vote
0
answers
863
views
What does "CLEAR" mean on a land survey map?
I paid for a land survey of my house lot, and there was one term on the survey map that I wasn't 100% sure about: "CLEAR". It's used on the map to refer to a short distance (e.g. 0.1' CLEAR or 0.2' ...
- 119
2
votes
0
answers
46
views
Seeking method for determining survey points?
I'm trying to write software to create a topographic map, my goal is to select several points of interest and create a minimal mapping that is inclusive of the points and interpolates the topography.
...
- 121
1
vote
0
answers
39
views
Details on Topcon theodolite data format (<3595959+3595959+****d094)
I am interfacing to a Topcon DT-102 (circa 1995) digital theodolite and wonder if anyone can help with the transmission format. It is perhaps shared with Sokkia or Leica/Wild.
Background
The unit ...
- 166
1
vote
0
answers
152
views
Distance calibration between GNSS RTK receiver and display/processing device?
Are there any known procedures for calibrating a precise position of an external processing/display device (e.g. a smartphone or a tablet) relative to the GNSS receiver?
Apparently, such a procedure ...
- 111
1
vote
1
answer
747
views
Difference between a GNSS receiver and GNSS antenna
I´m relative new using GNSS data and I would like to understand a little more about the instruments that I´m planning to use in my future research.
I was looking information on the UNAVCO website ...
- 111
1
vote
1
answer
75
views
Mapping & digitizing geographic features freehand? [closed]
I´m working on a project to map a colleague´s farm, and then ultimately digitizing that information to produce maps and signage.
To start, we´re focusing on a small agroforestry plantation. We want ...
- 11
0
votes
1
answer
504
views
WPF: How to change the Map Point coordinate(lat/long) to screen point (x-y) on ArcGIS
My project required me to perform a close traverse to plotting by placing a marker on that particular point. My problem now is that the traverse calculation are in x-y plane, but to plot a point using ...
- 47
1
vote
1
answer
835
views
Open Traverse Method for the map survey
I need to use traverse method in my program on visual studio(WPF) so that the user can get their target point coordinate by using their initial data. In my knowledge there is two type of traverse that ...
- 47
2
votes
1
answer
346
views
Understanding CadNSDI versus GCDB PLSS datasets difference and accuracy?
I recently submitted some coordinates I acquired via ArcGIS to the BLM to go out into the field and pinpoint some locations.
When I did the work at the computer I used ArcGIS and leveraged the BLM's ...
- 1,986
2
votes
2
answers
10k
views
Understanding the MUSYM field on SSURGO dataset?
What does the MUSYM field on the SSURGO data set mean? I have looked on the nrcs website have only found that it identifies soil.
In the data set that I am looking at there are values like Ub and ...
- 542
2
votes
0
answers
492
views
Adding land survey info to QGIS?
I am looking for help digitizing or adding info from survey plans into QGIS.
In this example I'm trying to add the lease boundaries highlighted in yellow and the pipeline right of ways to the right ...
- 211
0
votes
0
answers
40
views
Geolocating dataset of well pumps?
I have a dataset of well pumps, and I am trying to geolocate them. Each of the wells has as "Service Address" field, but instead of giving an address, it lists something that looks like this: "NW NE ...
- 101
2
votes
1
answer
141
views
Hardware for Surveying and mapping total station
Is "Microsoft Windows CE 6.0 / Magnet Field" operating system the sole property of TOPCON total station or it can be found in other total stations as well?
2
votes
3
answers
4k
views
Why can't lines plotted on google maps suffice for legal determination of property boundaries?
If there is a way to calculate a maximum error in a line plotted on google maps (road map, or satellite view) , then that should be admissible in a court of law, shouldn't it ?
For example, my deed ...
0
votes
1
answer
1k
views
How to map using more 'accurate' DATUM than WGS84? [closed]
WGS 84 is not very accurate as it is a compromise for the whole earth.
Assuming theoretically I'm surveying using very accurate IMU and very accurate GPS (in WGS 84 of course). I think I'll get a ...
- 1,799
2
votes
1
answer
826
views
DGPS post-processed Kinematic (PPK)
I did a dGPS survey last summer. Unfortunately, we didn't have a base station. So I did my survey in post-processed Kinematic PPK mode. Because we borrowed the equipment, we don't have access to post-...
- 697
0
votes
2
answers
176
views
How to understand degrees in real estate
We are wanting to understand where the easement is on a 10 acre property we purchased. We don't really understand about tags for posting.
This is the description:
Ingress-egress easement for road ...
- 1
1
vote
1
answer
149
views
Create Pseudo Drilling Spacing Units - Polygon inside another polygon from its boundaries
I am trying to create pseudo Drilling Spacing Units. That corresponded with the section, township and range that they are generated from.
I am working with Sections from the Land grid in Oklahoma; ...
- 53
-3
votes
1
answer
866
views
Latitude and longitude information of agricultural land [closed]
Is there a method by which I can get latlong details of agricultural land?
Latlong information of 1 point in the land is not useful, as I want details of the entire agriculture boundary (from latlong ...
1
vote
1
answer
1k
views
How to show slope directon and angle [duplicate]
I need to create a map showing slope direction and dip angles in QGIS.
How do I get either:
the dip angle to show up next to the direction arrow
or
the dip arrow symbol to change depending on the ...
- 21
2
votes
0
answers
104
views
Align approximately colocated vector points for comparison
I have a more general, methodological question and do not have much knowledge about GIS techniques.
I have 6 topographic survey ([x,y,z] point clouds), each representing the same dune/beach system ...
- 73
2
votes
1
answer
8k
views
Convert Cassini-Soldner Projection coordinates from Kenya to UTM
I have a list of coordinates from Kenya. The coordinates were recorded in old survey maps using Cassini-Soldner Projection, with Clarke 1858 Datum. The approximate geographic coordinates (WGS84) of ...
- 57