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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Is there a python library that is designed to operations on coordinates? [duplicate]
Assume that a subject is at the coordinates (Lon, Lat). Then, the subject moved a specified distance and bearing. I want to calculate the new(Lon,Lat)
So my question is, are there any python libraries ...
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How to write a rhumb line bearing?
I am working with an American translation (1922) of the logs of Vitus Bering's voyages in the North Pacific Ocean (1742).
Latitude and longitude are written in the format 52° 02′ N and 1° 57′ E, but ...
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2answers
29 views
Heading rate/bearing from GPS points in BigQuery
I want to calculate heading rate / bearing from GPS points in Big Query. I've check all of the geography functions in BQ but found nothing helpful. Has anyone done it in BQ?
My data consist of ...
2
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1answer
51 views
Derivation of initial bearing calculation
NOTE: I was recommended by another user that this would perhaps fit better in this stack, initial post link.
I needed to make calculations of the initial bearing between two coordinates described in ...
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28 views
Plotting bearing and distance from known point in ArcMap
I have bearing and distance estimates of animals from a survey post. I have the coordinates of the survey post and I already have that in GIS.
How do I plot these bearing and distance estimates as ...
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25 views
Calculating bearing of a line
When the bearing of a line is calculated using the "Add Geometry Attribute (LINE_BEARING)" tool, is the bearing referenced to Grid North or True North?
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1answer
70 views
Calculating Grid Convergence
When ESRI tool "Calculate Grid Convergence Angle (Cartography)" is used to calculate line bearing or azimuth, is the bearing referenced to True North or Grid North?
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57 views
How to calculate a line from a position and bearing in SQL Server 2012 (Spatial)
Currently I've a table filled with measurements from a certain point. All the rows contain a location in Lat/Lon, a bearing in degrees and some other data containing sensor updates etc. At this moment ...
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99 views
Azimuth calculation in QGIS 3.10
I am calculating the azimuth between two points whose position is defined in WGS84 coordinates. If I Open Attribute Table -> Open Field Calculator and ask for
degrees(azimuth(make_point(6.020323,47....
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1answer
291 views
True-North Bearing between two GPS coordinates
I am trying to find the correct equation to find the bearing off of true-north between two GPS coordinates. I have seen a lot of online calculators and a lot of formulas on this GIS stack exchange, ...
1
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1answer
57 views
Calculating bearing (magnetic) between two lines?
This should be a basic geodesy question.
I have a requirement to calculate "bearing (magnetic)" between two points.
Will the igismap Bearing Angle tool do the job or is there something more to ...
5
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1answer
162 views
Relationship between Android bearing and iOS course?
I'm a mobile developer working on an Android and iOS app that displays the user's location and various POIs on a map. I've been comparing the location objects that I get back from Android and iOS and ...
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2answers
496 views
Add geometry attributes tool in ArcMap successfully runs but no fields are added to attribute table
I am attempting to add a line bearing attribute column to my shapefile in ArcMap. I'm using the Add Geometry Attributes tool to accomplish this. Running this tool is successful, however when I inspect ...
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129 views
Calculating direction for points (lon/lat) in a perfect circle (shape) north of equator?
I have perfect circles in lon/lat on a OpenLayers map.
Near the Equator I locate each point on the circle using bearing-calculation for each point from circle-center. Meaning there are 360 bearings ...
3
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118 views
Calculate weighted azimuth/bearing of a line
Given the line
LINESTRING(-9.086532643219698 -7.939337106873815,-1.396102955719698 -0.9775148048290135,-0.780868580719698 -0.7138718839794582,-0.077743580719698 -0.6699297767574899,0.581436106780302 ...
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Generate arc from projection coordinates
I have a mind to generate arc from given parameters:
start point coordinates
arcDistance
arcBearing
arcOrigin coordinates.
My concept is, calculate the end point of arc (function geo.sphere....
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339 views
Shift a lat/lon coordinate based on a distance and direction?
I have a coordinate in (lat/lon). I want to find a new coordinate shifted from this point by 'x' meters in the direction given by a compass bearing (degrees). The distance offset I am hoping to ...
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1answer
80 views
Infering course given origin and destination coordinates
I have two points. A vehicle is at point A and I have the coordinates at point A. The vehicle moves to point B and I know the coordinates as well.
I would like to find the angle of movement i.e., 0,...
0
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1answer
791 views
Calculating bearing of polyline in QGIS [duplicate]
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
votes
1answer
61 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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2answers
51 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 ...
2
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2answers
336 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
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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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2answers
274 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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987 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
950 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 ...
0
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2answers
96 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
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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 ...
2
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0answers
117 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 ...
2
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1answer
2k 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 ...
6
votes
1answer
579 views
Buffering a line with varying distances associated with directional quadrant by QGIS?
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
808 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
702 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
594 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 ...
4
votes
1answer
8k 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), ...
4
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2answers
3k 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
192 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
282 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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115 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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96 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 ...
2
votes
1answer
836 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, ...
3
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1answer
507 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
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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 ...
3
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1answer
1k 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
4k 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
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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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2answers
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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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3answers
849 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
votes
2answers
716 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
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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 ...
