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Questions tagged [bearing]

A direction measured in angular units from some reference line. Also known as an azimuth or a heading.

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Moving points by multiple attributes automatically

I have a shapefile including sightings of birds (points), but the gps points are taken from where the sighting have been made, not where the bird actually are. And in the map I need to show the real ...
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How to find specific bearing, distance and elevation of a satellite [duplicate]

I am trying to find a specific bearing, distance and elevation to a satellite. I know there are websites but I need a formula to do this. I need to be able to find these things from a set of co-ords ...
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Add line feature using bearing

QGIS 3.4.Is there a way using advanced digitizing to use a bearing, i.e. N 45° 15' 25" E as the angle?
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Deriving bearings from csv points

I've been working on deriving bearings and distances from lines in qgis 2.18 from a number of coordinates stored as a csv file. I have been able to generate the bearing of the lines using this ...
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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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Calculating Distance and Bearing North Azimuth (0 degrees pointing North) in ArcGIS Near tool?

I am trying to calculate distance and bearing in ArcMap using the tool Near, and although it works I need the results to be calculated using North Azimuth (0 degrees pointing North) and not Polar ...
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318 views

Using azimuths and bearings in GeographicLib? [closed]

I am currently using the JavaScript port of the geodesic routines from GeographicLib: https://geographiclib.sourceforge.io/html/js/ https://github.com/yurijmikhalevich/node-geographiclib I am ...
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Snap Point with Bearing to Nearby Line Matching Heading

How can I snap a set of points which represent tracking data and include a heading, with the nearest line that approximately matches that heading? The tracking data is mostly clustered around ...
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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 ...
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How to Create a Grid Inside a Polygon that is Oriented with the Longest Side?

I have been using a process called "Create Polygon Graticule" to create a grid within a polygon with assigned row and column attributes. It is a SAGA tool which I have been running in QGIS. It ...
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Convert Vector field marker to line shapefile

I am using QGIS. I have a set of data with bearings from set points. I have used vector field markers to show them as lines from the point in the direction of the bearing but I want to have this as a ...
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605 views

Bearing of Two close lines in python

In the picture below I am finding the bearing of two close lines. This is the picture of two complete lines. The brown line might be a bit large from the blue line. Should not be the bearing of these ...
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error when computing a destination point with a bearing of 90°

I am trying to compute a geographic destination point given a starting point, a bearing(or azimuth) and a distance. Howhever, whatever formulae I am using, the result do not seem to be correct when my ...
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how to buffer a line with varying distances associated with directional quadrant with open source GIS?

I would like to buffer a set of lines with different distances to the NW, SW, SE, and NE. I have the distances stored in four attribute fields that correspond to the direction the buffer should be ...
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What is the difference between “due North”, “N0degreesW” and “N0degreesE”?

Is there a difference between "N0°W" and "N0°E"? These terms have been used in connection with Strike Lines. The final bearing computed was exactly 0. Will the direction East and West ...
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1answer
312 views

Calculate velocity x and y components from Lat,Lon and Time

I'm trying to calculate velocity components in the X and Y direction given two points: P0 = (Lat0,Lon0,Time0) and P1 = (Lat1,Lon1,Time1) The points are pretty close together so the components ...
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How can I find the average bearing using a set of zig-zaggy coordinates, knowing the user travelled in a straight line during that period?

Some background: I'm developing an app which uses augmented reality and GPS data in order to improve the True North accuracy of the device. Currently, iPhones have a True North accuracy of about 15º ...
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1answer
2k views

Calculate bearing between two decimal GPS coordinates (Arduino / C++)

I am trying to calculate the bearing just like in this example: Calculate bearing between two decimal GPS coordinates , but my environment is Arduino. I got the code translated (please see below), ...
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Simplify geometry and export csv with segment bearing

I am trying to create a script in qgis that simplifies a polyline so it has 99 vertices or less, and exports a CSV file with XY geometry and bearing per segment (i.e for each pair of vertices). I am ...
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881 views

How to compute latitude and longitude of a point at a distance from another point in some direction?

I have the coordinates of a point on Earth and I want to know the coordinates of a point that is at a distance in meters from the first point in an angle in degrees from the north but I haven't found ...
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1answer
135 views

Finding the side of a square that a point intersects with R (sp)

I have a point and a square polygon. Both are sp classes. The point intersects one side of the polygon, and I need to know which side of the square it intersects (i.e. north, east, south, or west). ...
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1answer
164 views

Connecting points to polygon edges using angular bearing

I am trying to map some caves located along a coastline (using QGIS 2.18.3 with GRASS 7.2.0). The survey took place on a boat, so the GPS points were taken at sea. I have information on the angular ...
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Extending lines grouped by same value using ArcPy of ArcGIS Pro?

I'm trying to extend lines grouped by same value inside column. So what i want to do is extend lines for each line with same WireID only. So for example lines with WireID 2 should all be extened to ...
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How to make two vertices to have a certain bearing in QGIS

I have a shapefile in QGIS which was hand-drawn and I want to align the N/S and E/W lines to true N/S and E/W, is there a way to select the two vertices of the line and make one/both move to make the ...
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1answer
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Finding azimuths/bearings between many consecutive points in ArcGIS

I have a ton of consecutive points and I need to know the bearing between each of them (a to b, b to c, c to d,etc). Ultimately, I will convert the numbers (bearings, azimuths?) to directions: N, NE, ...
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1answer
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A doubt on the algorithm Cross-Track Distance in Java Code

I was researching a way to calculate the shortest distance between a coordinated and a straight when I met the Cross-Track Distance. To find the distance, I had to implement the following code: final ...
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Projecting Cross-Track distance on great Circle?

I have a route formed by some waypoints (black path) and I would like to project it over the great circle (blue path) connecting the starting and ending waypoint. With the work "project" I mean to ...
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1answer
728 views

Drawing wind rose with QGIS from PostGIS?

I am working on wind rose data. I have some points on lines (streets) in my Postgres/PostGIS DB. The sample data scenario is: First, I computed street orientation of this line using PostGIS commands ...
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How to convert double bearing into x and y coordinate

If I have a double bearing from different point which is point A and point B on a single point (object), how do I get the x and y value? Lets say the number of point A is 84 degrees and for point B ...
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How does a GPS device determine bearing?

Following a discussion on Math and this particular comment, I am wondering how a GPS receiver determines its bearing. As I understand it: GPS is not a directional system, thus bearing can only be ...
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Getting the compass point given longitude, latitude and direction in degrees

I have this data gathered using a GPS device No. Time Longitude Latitude Speed(Km/h) Compass point Direction (deg) 1 10/20/15 1:34 40.11724 -3.21032 11 Northwest ...
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calculate bearing from one MapPoint to another MapPoint

I am using Esri.ArcGISRuntime package inside a C# program we are writing. I need to create specific shapes from a reference point and project them in different directions. This is easy to create a ...
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How to visualize updating lines of bearing from a point

I'm working on a project where I need to visualize a constantly updating line of bearing from a point, based on degree of rotation around that point. My plan is to design a line feature with an ...
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How do I get the lat-long coordinate of point 1 from a survey plan [closed]

Here are the data from the survey plan: TIE LINES from BLLM No. 3, PLS 561, to corner "1" of: LOT ----------Bearing--------------------Distance Boundary ----S 36deg 41min W ------11,641.21 meters ...
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How do I calculate the latitude of an end point given a start point, bearing, and longitude of the end point?

I have a line that crosses the 180. Given the bearing from Point A to Point B, how can I determine the latitude of the point on the line, given the longitude of the end point to be -179.9999? For ...
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1answer
698 views

Basis of Bearing in ArcGIS Parcel Fabric

Can someone explain how to handle a basis of bearing (a rotation factor for an entire parcel fabric) in an ArcGIS (10.2/10.3) parcel fabric? I have a set of parcels at the edge of an SPCS zone, so ...
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QGIS distance from point to line along a specific bearing

I've got a vector layer with points (representing customer locations) and another vector layer with a line (representing the coast line). I want to calculate a "smart" distance to coast. Specifically, ...
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1answer
713 views

Add a label to a mouse pointer

I am drawing a bearing line using a line with max vertices of 2, I have the calculations for figuring out the actual bearing from the lat lon of the original point and the mouse latlon I want to ...
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1answer
353 views

Comparing compass bearings

I have several compass bearings: bTrue = 190° b1 = 250° b2 = 100° b3 = 170° b4 = 90° I want to compare b1 - b4 and find out how close they are to bTrue. So bTrue is 100%. How much percent is then b1,...
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907 views

Distance with Bearing Calculation not working

I have this function in Python that calculate distance from a point with bearing. Problem is the latitude part is generating the wrong answer and i cannot figure out where i went wrong: def ...
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Calculating Bearing/Direction via Spatial Join?

I was just wondering if it was possible to calculate a bearing field via a spatial join? Basically I have needed in the past to calculate distances from one singular point (e.g a well) to a number of ...
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1answer
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How to detect other objects are on which side of an object based on lat long

I am working on a system that detects the lat/long of vehicles. I want to track other vehicle's position: left, top-left, right, top-right, bottom-right, bottom-left etc based on lat/long. I have ...
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1answer
793 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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1answer
221 views

Obtaining bearings to polygon extents in ArcGIS?

In the context of a wider question, (Generating multiple visibility bearings in ArcGIS as automated procedure?) is it possible to extract bearing information from a particular point or set of points, ...
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2answers
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Generating multiple visibility bearings in ArcGIS as automated procedure?

As a relative newbie to GIS, I'm quite sure there will be a way to do this in GIS (probably most efficiently by writing a python script!) but (to me anyway) this is a fairly complex thing to do and I ...
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How to automatically draw lines with a given angle from one single point in QGIS?

I need to draw a bundle of lines all originating from the same point and with a 10° angle between each line (e.g. lines bearing at 0,10,20 ..90..110..220..350). I can't decide a priori the length of ...
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1answer
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Line bearing for wind direction for plume of smoke QGIS

I'm trying to draw a line representing direction of a plume of smoke for an emergency planning scenario in QGIS. The line needs to be 5km in length and have a bearing of 85 degrees. The closest I have ...
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1answer
1k views

Calculating difference between bearing values in degrees

Suppose I have 3 geographic points, A, B and C. I can calculate the bearing of B from A (in degrees) using this SQL snippet: degrees(ST_Azimuth(geogA,geogB)) as brg_a_b ...and the same of C from B: ...
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Variation of algorithms to find point from another point with bearing and distance

There are several algorithms to calculate distance between two latitude/longitude points. Haversine Hubeny Lambert-Andoyer Vincenty's formulae for inverse problem But there are not so many ...
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1answer
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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 ...