Questions tagged [bearing]
A direction measured in angular units from some reference line. Also known as an azimuth or a heading.
67
questions
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1answer
40 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 ...
4
votes
1answer
44 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 ...
0
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1answer
58 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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0answers
69 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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0answers
68 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 ...
2
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0answers
41 views
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....
1
vote
0answers
187 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 ...
0
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1answer
49 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,...
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19 views
How to find coordinates of second point using distance and bearing from start point [duplicate]
I have WGS84 coordinates of start point (60.088244, 21.229361). The ship bearing is 231° (degrees) and it has moved 2.5 km.
How to find coordinates where the ship has reached? (coordinates of the ...
0
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0answers
26 views
What is the accuracy and precision of bearings measured using Google Earth
For North America, what are the accuracy and precision that the bearings of decameter- to kilometer-long features, e.g lineaments and oriented lakes, be measured using Google Earth?
Can these ...
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0answers
70 views
Converting a bearing in degrees to DMS from a column in a table?
Bearing
Point 1 0.000000
Point 2 81.847356
Point 3 121.959755
Point 4 351.612081
Point 5 189.582973
Point 6 242.890690
Point 7 41.095348
So far I have this but am ...
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0answers
222 views
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
votes
1answer
54 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. ...
0
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0answers
23 views
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?...
1
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1answer
35 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 ...
0
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0answers
21 views
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 ...
2
votes
2answers
218 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?
1
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2answers
56 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 ...
0
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2answers
188 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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0answers
705 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 ...
0
votes
1answer
677 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
votes
2answers
92 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 ...
13
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3answers
1k 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 ...
2
votes
0answers
109 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
votes
1answer
1k 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 ...
5
votes
1answer
422 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 ...
1
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2answers
464 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 ...
0
votes
1answer
480 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
votes
1answer
514 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
5k 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
votes
2answers
2k 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 ...
1
vote
1answer
168 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
votes
1answer
213 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 ...
0
votes
0answers
86 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 ...
1
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0answers
94 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
724 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
votes
1answer
422 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 ...
2
votes
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
923 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 ...
0
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2answers
3k 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 ...
7
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3answers
5k 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 ...
4
votes
2answers
2k 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 ...
1
vote
3answers
718 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
654 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
6k 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 ...
0
votes
1answer
426 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 ...
0
votes
1answer
770 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 ...
3
votes
0answers
281 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
818 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
462 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,...
