Questions tagged [cogo]

COGO, short for coordinate geometry, is a set of tools for (or the act of) converting between local polar and rectangular plane coordinates.

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PLSS not aligning with city boundaries

I have PLSS data that is supposed to line up with a city's easterly boundary line yet it does not. There is about a 70 foot gap between the SWSE western quarter section line of the SE quarter of ...
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ArcMap Northing and Easting Starting Point vs. 'Northeast Corner Section 8' difference

I have a legal description that states the section starting point and the Northing and Easting Coordinates. Upon typing the Northing and Easting into my COGO table it is about 20 feet off. Which one ...
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Same coordinate system yet spatial reference does not match data frame

My primary duty is to COGO and need my results to be perfect. I have my data frame properties in NAD 83 State Plane California V FIPS (picture below). Here is my COGO layer image showing the same ...
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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 ...
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PLSS second division starting point vs Legal State plane coordinates

Why do I have my starting point off by 33 feet from the center of section 25 as shown in the image "A"? "B" is my starting point and "C" is the true starting point as ...
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ArcMap Grid to Ground Click on map for the grid lines

I am using PLSS data found from this California BLM data source to map COGO'ed polygons. I am unsure if I should use the ground to grid correction function. When I do I use the click on the map for ...
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Building a polygon using COGO/traverse in ArcGIS Pro

I have a legal survey and I am trying to digitize a polygon boundary using the metes and bounds. In ArcMap, I would just edit an existing polygon layer using Traverse. In Pro, the "Modify ...
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Inputting legal description into ArcMap using COGO tool

I have a legal description that I need to create in ArcMap, and I'm not certain how to input some of the descriptions. Here are a couple of the descriptions I need to input: If I only input the part ...
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QGIS - tool to plot polygon from point with known bearings and distances

Is there a tool that can convert a point dataset to a polygon based on some known parameters. We will have 1- x,y Azimuth 3.Distances in m for a- point in the direction of 2 (the azimuth) (200m), ...
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Shapefile from heading and distance directions for property boundary

I have a survey with heading and direction points describing the boundary for a rural property in Brazil. I am in correspondence with someone there who needs a shapefile (I believe he mentioned kml or ...
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old coordinate systems that were "made up" by surveyors decades ago

Using ArcGIS COGO tool for ROW / Easement digitizing from old plats (using their bearings and distance calls) that used what a veteran of the county says were 'made up" coordinate systems in Maryland. ...
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Offsetting 100 ft from line feature while editing in ArcMap?

I have the ArcGIS 10.6 advanced lisense. I am trying to offset a line feature using the editor tool. I know that I can do it in COGO, but how to set the unit as ft. In COGO, the offset unit option is ...
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What does delta mean? [duplicate]

What does delta mean in terms of the curve table in the picture above?
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calculate the length of the split lines

I want to split lines in my shapefile so i am using COGO tool to split lines. After splitting I want the length of these new split lines in the attribute table. I have checked in many places but ...
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COGO rotation skewed, likely coordinate issue?

I am COGO'ing a survey plan from June of 1972, the scan of the paper plan is not so great and does not list any Datum or declination used, but only a scale bar showing measurements are in feet, and ...
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Projected Coordinate System for COGO descriptions?

I am COGOing a legal description from 1950. When I COGO the legal description it does not match the boundaries from the data in our database. I suspect it is the coordinate systems not matching. ...
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426 views

Set coordinate system for deed calls in COGO?

I am working with deeds that display metes and bounds, but the surveyor did not include the coordinate system used. If I am trying to enter this data into ArcMap using COGO, where in the process of ...
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2 answers
546 views

Transform local polar coordinates to UTM

I have some field points disposed like the diagram below: In this diagram, I know: 1) Point A UTM coordinates 2) Distance between A and B 3) Distance between B and C 4) AB azimuth 5) BC azimuth ...
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"Direction/Length" Tool not working with Polygons in ArcMap 10.3

My "Direction/Length" right-click option is not working when trying to draw a polygon. I start a shape by dropping a single vertex, right-clicking and choosing "Direction/Length". I enter in the ...
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Is there a way to create a legal description, or some kind of description of a shapefile? [duplicate]

A colleague and I are working on creating legal descriptions for several hundred districts, for which we already have shapefiles. I'm wondering if there's a way to use COGO to help provide a ...
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1 answer
759 views

QGIS Azimuth and Distance Plugin curve

I have just installed the Azimuth and Distance plugin for QGIS and I have been testing it for use with our COGO workload. However when using the Anti-Clockwise ArcDirection method for a curve to the ...
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4 answers
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Drawing polygons from legal descriptions using bearing directions in ArcMap?

I have many property descriptions I need to add into my GIS that are described using bearings (such as South 01 degrees 41'46" West for 25 feet, then continuing in a different bearing to create a ...
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2 answers
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Proper ground-to-grid correction and projection from old survey maps

I asked this question over on the ESRI geonet site, but haven't had any luck there, sorry for the duplication... I'm working on digitizing a group of maps from the 1950's that show locations of ...
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3 answers
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Using Plat Plotter - Calculate Curve Table feature given an arc and radius

Plat Plotter has a Calculate Curve Table feature that generates a sequence of points for use in drawing plot lines. To put another way, it converts a curve into several short, straight segments ...
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193 views

How can i create points per 10 and 100 meters for several lines with ArcPy?

I have 10 lines and i want to generate points per 10 and 100 meters for each one of them. In ArcGis there is the tool construct points(COGO) but is not scriptable. Is there any suggestion? Also i don'...
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1 vote
2 answers
231 views

Creating points from an Annexation Ordinance description [duplicate]

I would like to be able to draw points in ArcMap using information provided by an Annexation Ordinance. I use ArcMap 10.3 with a Basic License Not having much experience in working with documents ...
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1 answer
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Scripting creation of cogo polylines including curves

Is it possible to create polyline features from cogo type text files? I have some files that have survey type coordinates in them and they contain straight line segments as well as curves (defined by ...
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3 votes
1 answer
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How to display survey calls using the traverse tool?

I use the Traverse Tool to run out legal descriptions on deeds and recorded subdivision plats. I'm looking for a way to display the survey calls once I'm done. Is there a way to do that? I'm using ...
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5 votes
2 answers
2k views

Checking if points are concyclic before solving three point resection?

I'm trying to write a function that solves the three point resection problem using Tienstra method. I gathered a lot of papers and books about this problem, and each one of them states: If the ...
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2 votes
5 answers
14k views

How to get intersection point from two lines (two coordinated points and two bearings)

I have tried for ages to find the algorithm for getting the coordinate of two intersecting lines from two given coordinated (latitude and longitude) points. As the picture below suggests, I have two ...
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3 votes
1 answer
178 views

<#> doesn't give a useful distance [duplicate]

I'm new to postgresql/postgis and trying to measure a distance. So st_distance() may be the most accurate, it's the slowest too (as I've read). I read that one can use geometric (instead of geographic)...
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3 votes
2 answers
44k views

ArcGIS: Create polygon using file containing point coordinates

I have a text file containing the projected coordinates of the points that define a single polygon. The X, Y coordinates are separated by Tab Is there a tool in ArcGIS similar to "Add X,Y Data" in ...
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3 votes
2 answers
38k views

How to calculate Distance, Azimuth and Dip from two XYZ coordinates

I have two XYZ coordinates and I would like to calculate the Distance, Azimuth and Dip between them. I have come across a similar question on this site that calculates it the other way around (with ...
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2 votes
1 answer
2k views

Extension for COGO for ArcGIS 10.2

I can't seem to find an answer with regards to obtaining COGO for ArcGIS Basic 10.2. Does COGO fall under any of the extensions currently offered by ESRI or does it only fall under the higher level ...
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1 vote
1 answer
895 views

Direction and Distance Point Placement

I'm working with 19th century land tax records that provide a direction (expressed as NW, SE, etc.) and a distance in miles from the court house. The info in the Land Tax Records (LTR) is in effect a ...
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2 votes
2 answers
2k views

How to enter quadrant bearings into Copan map check

I am attempting to convert, to a 360 degree basis, the normal bearings in a survey. The following are the original survey bearings (2nd column) and on the right (4th column) is the 360 basis amount I ...
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1 vote
2 answers
1k views

Data format for checking a land survey deed

A commercial property is in the closing phase of sale and the only hold up is that the deed description is one that's been lifted from prior deeds dating back to the 1950's and is obviously erroneous. ...
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3 votes
2 answers
2k views

How to find the destination point given a start point, distance and bearing?

If I have a starting point as well as distance and a bearing to the destination point, how can I find the coordinates of the destination point using PostGIS? I'm looking for a PostGIS equivalent to ...
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2 votes
1 answer
229 views

Defining a line from geographic coordinate points.

On a flat surface we can define any point on line which passes from point1 (x1,y1) to point2 (x2,y2) via simple trigonometry. How can we do that with latitude and longitude of 2 points? Imagine we ...
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3 votes
2 answers
7k views

How to enter metes and bounds descriptions in ArcMap with only a Basic license?

I am using ArcGIS for Desktop 10.1 Basic without extensions. How can I convert a metes and bounds description such as below? For example, 47 degrees, is there a way you can convert the degrees ...
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6 votes
2 answers
7k views

COGOing Legal Descriptions using ArcMap

I successfully used the COGO traverse tool to create a polygon for a piece of property described in a legal description. My issue arose because it did not line up with data I already have of the area. ...
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1 answer
515 views

Acceptable traverse field file syntax for processing on Copan, with azimuths reckoned from south

I'm looking for a way to properly process .RAW traverse data from Nikon DTM on Copan 11.11. These points, after calculations and processing, will later be used as points in a thematic map and a .dwg ...
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2 votes
3 answers
1k views

Convert surveyor's calls in excel table to polygon shapefile

Do you know of a way to take surveyor's calls from an excel file (for example: N35-45-15W 60.0 ft, etc) and have them generate polygon shapefiles point by point in GIS? I know you can easily do this ...
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5 votes
1 answer
4k views

Coordinate systems and bearings

Ok so I've got a noodle scratcher and want some input before I open my mouth to my higher-ups. I recieved a new boundary description from a surveyor that uses metes and bounds in the form of bearings ...
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9 votes
3 answers
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Creating points based on distance and bearing from survey point using QGIS?

I am plotting witness tree data to calculate pre-settlement tree density. I have a shapefile with points along section lines (square miles) at each half mile. I am making another table that contains ...
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4 votes
2 answers
2k views

Are there any COGO tools in QGIS 1.9+?

The "Azimuth and Distance" plugin does not appear to be maintained any longer, and has not been transitioned to the new QGIS 2.0 plugin repository. What are the current options for entering COGO in ...
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1 vote
1 answer
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Are there qgis equivalent to Cogo tools of ArcView 3.2

We are transistioning to Qgis, i have GIS users that currently use ArcView 3.2 (yes there are still people using this) they find the cogo tools very useful and I was wondering if there is an ...
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4 votes
1 answer
2k views

Mapping points from total station data in Angle, Horizontal Distance, Vertical Distance

I am working on creating a contour map from total station topo points in ArcGIS 10. The points were collected using H angle, HD, VD instead of XYZ points. I need to create points from these ...
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5 votes
3 answers
4k views

How tool to split polylines into two-part lines at vertices in ArcGIS for Desktop 10.1?

I'm using ArcGIS 10.1 SP1 at and we have a problem. There is a serious topology bug that I've mentioned in another question that is affecting our workflow. At present, Esri has stated the fix will be ...
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4 votes
1 answer
802 views

Metes and bounds automation in ArcMap?

We are using the metes and bounds in old pipeline alignment sheets in an edit session in ArcMap to plug in the "direction/length" values to generate the line segments. Does anyone have any idea how ...
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