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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Calculating bearing of polyline in QGIS
I have a shapefile containing a lot of lines which I'm trying to separate based on direction.
Is there any way to calculate the line bearing against a compass (in degrees or just as North / North-...
2
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1answer
39 views
Bearing Geometry Automatic Calculation?
I am building a cadastral fabric and it's really nice to have the bearing and distance come up on the lines as I traverse around. I just found a great way to do this with the Add Geometry ArcGIS tool. ...
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Correlation between varying bearings
Problem: The Bearing of point B from point A on one datum and projection varies from that on another datum and projection. Can a consistent correlation be established for the variation in the Bearings?...
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1answer
30 views
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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2answers
53 views
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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2answers
50 views
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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2answers
110 views
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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315 views
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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1answer
398 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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2answers
88 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 ...
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3answers
689 views
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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95 views
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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1answer
742 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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0answers
113 views
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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0answers
301 views
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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2answers
284 views
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
335 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 ...
2
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1answer
417 views
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 ...
3
votes
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), ...
3
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2answers
1k 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
146 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). ...
3
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1answer
174 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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0answers
72 views
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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0answers
89 views
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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votes
1answer
549 views
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, ...
2
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1answer
329 views
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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3answers
2k views
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 ...
2
votes
1answer
757 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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2answers
2k views
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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3answers
4k views
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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2answers
1k views
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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3answers
623 views
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 ...
2
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2answers
604 views
Visualizing updating lines of bearing from 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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0answers
4k views
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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1answer
379 views
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
715 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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0answers
256 views
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, ...
2
votes
1answer
735 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 ...
2
votes
1answer
384 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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1answer
962 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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2answers
286 views
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 ...
2
votes
1answer
94 views
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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vote
1answer
815 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
182 views
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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votes
2answers
3k views
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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vote
1answer
370 views
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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vote
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:
...
4
votes
2answers
2k views
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 ...
