The land-survey tag has no wiki summary.
7
votes
2answers
94 views
What does map scale refer to in map making / field survey metadata?
If I have, say, a printed map at the scale of 1:20000 and the legend says that it was mapped at a scale of 1:10000 does this simply mean, that the surveyors/cartographers made drafts & sketches or ...
11
votes
1answer
314 views
Teaching Python to Land Surveyors
Does anyone have any good examples of using Python to automate or simplify common surveying tasks?
I'm teaching a Python/ArcPy lab this week for a GIS class. There are a number of surveying ...
3
votes
2answers
157 views
How to Calculate North?
I am working for field survey & client requirement is differentiate various north,like magnetic north,true north & grid north.So therefore my question is what is the methodology of calculating ...
0
votes
1answer
127 views
Looking for a tutorial on syncing QGIS with Trimble ProXT
Does anyone have any experience/advice to sync a TrimbleProXT gps antenna with the current "Lisboa" 1.8.0v?
Additionally did you manage to collect features (points,line,polygons) in the field ok? ...
3
votes
2answers
270 views
Land Administration Domain Model example implementations
Does anybody know of a sample implementation? I am currently trying to adapt it to my country but the LADM is rather abstract. Anybody have any idea how to go about this?
3
votes
1answer
291 views
Parcel Fabric vs. Polygon feature class (for land parcel management)
I'm wondering if I should migrate my existing parcel polygons (stored as a feature class in a geodatabase) to a parcel fabric in ArcMap. What are the advantages of doing this? I work for a county so ...
9
votes
1answer
322 views
How to compare aerial and satellite images for land use analysis?
I am interested to compare the land use-cover dynamics for four periods: 1950s, 1980s, 1990s and current for a certain area having a max size of 5000 ha.
For the first three periods detailed aerial ...
2
votes
2answers
101 views
earthquake effects on total station surveys
What I have been wondering is whether an earthquake can affect a closed system survey. We are using Leica TCR 307s and TCR 407s and I was wondering if an earthquake can throw off your fixed points if ...
7
votes
3answers
1k views
Do's and Don'ts for GPS Localization
We have recently purchased some new GPS survey gear (ProMark 500) and we have set up a localization around the town using some of the known survey marks.
While I'm pretty confident that I have got it ...
5
votes
4answers
364 views
Landscape software to analyze amount of dirt moved
I'm about to embark upon a design project for re-contouring landscape around my home. Assuming I get an accurate measurement of the landscape into the computer, and after I modify the landscape model ...
8
votes
5answers
863 views
DIY easy and ~accurate small-scale landscape survey
Summary
Is there any equipment that I can rent 'inexpensively' (less than $400) that would allow 1-2 people to accurately (+/- 6") capture the topography of hilly terrain of perhaps 250' on a side in ...
11
votes
4answers
309 views
Given a list of surveyor points, what is the algorithm used to simplify the points and retain the terrain characteristics?
Given a terrain and surveyor points sampled from from it or from its contours, is there any algorithm that one can use to simplify the points ( i.e., reduce the surveyor points number) and at the same ...
2
votes
1answer
550 views
How to process topographic survey data in ArcGIS?
I am interested to find out how others process topographic survey data in ArcGIS. Often I am only given a text file or an Excel spreadsheet containing XYZ points and simple attribute information ...
7
votes
5answers
672 views
How can I find positions on my land?
I have about 2 acres of land, wooded and brushy. There was a survey and the corners have rebar.
I am working on a site plan for house construction. I have two related problems:
Finding a spot on ...
