# Questions tagged [azimuth]

An azimuth is "a [particular kind of] angular measurement in a spherical coordinate system."

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### Restricting numeric fields to specific ranges using ArcGIS Pro Attribute Rules (Arcade)

Working in ArcGIS Pro 3.1.2 and trying to use Attribute Rules to restrict the values in a couple numeric fields. The ESRI documentation does not specify how this might be answered, despite my best ...
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### Calculating azimuth between two points using their projected coordinates with Python

First of all, the goal is to create small lines from points at each end of a LineString. However, for it a step is to calculate the azimuth for the first and second, and second last and last vertex. ...
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### Why is the azimuthal projection not drawn correctly?

I am using Azimuthal equidistant projection, formulas from wiki const double R=1000.0; double calcDist(double phi0, double lamda0, double lamda, double phi) { double cos=qSin(phi0)*qSin(phi)+qCos(...
640 views

### Converting azimuth to bearing with QGIS expression

For example, an azimuth of "225°" to read "S 45° W." I think there's a plugin that can do this, but I want to use this as a label in QField while digitizing.
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### Satellite ground station site selection

I want to carry out suitability of a few identified Area of Interests to set up satellite ground station. The main requirement of the ground station is: it needs to have visibility above 10 degree ...
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### How to determine apex / angular points in QGIS-3

How could I find the apices / angular / turning points of a linestring in QGIS3? The logic behind that should be to determine consecutive segments with same direction (always right or always left), ...
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### How to calculate GPS offset given azimuth(bearing) angle and slope distance and inclination angle of the object

If there is an object (tree) which gives back the below data measured from a given GPS location: Azimuth angle Slope distance to the tree or object Inclination angle to the tree or object. How to ...
1 vote
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### Geometry generator: draw a line from point using azimuth field (unable to convert float to double) [closed]

I'm having issues with drawing line(s) from point layer at azimuth value and given distance (using layer "float" field with azimuth). I'm trying to do this using Geometry Generator display ...
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### Convert unit vector from body to ECEF coordinate system

I have an Android phone using local coordinate system as shown on the picture: "Азимут" is azimuth. "Угол места" is elevation. "Крен" is roll. Azimuth is measured from ...
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### Calculate azimuth between points

I have a points from file in CSV format containing the following fields: I want after ordering the points based on collecting time, to calculate the direction in degrees between the points. From ...
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### Create competing polygons from points and bearings (azimuth)

I have a set of points on a city, representing CELL TOWER locations. Each CELL TOWER has 3 or 4 different CELL RADIOS pointing to diferent directions (Azimuth). What I need is an algorithm to take ...
287 views

### Calculating average Azimuth of route

I would like to get an average azimuth of a route (like slope in linear regression). I tried using linear regression to calculate a slope and convert that slope to degrees (azimuth), but I got the ...
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### Map distortion and the difference between the Orthographic and Stereographic Azimuthal projection

I am new to the topic of maps and distortions and am a bit confused about the effects of conform and no-conform maps. Taking as an example the Azimuthal projection: I have read that with the ...
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### QGIS Azimuth and Distance Plugin Right/Left Curve Input

I'm having a problem with left/right curve of radius rr and distance dd entry for the Azimuth & Distance Plugin. I've only used the plug in for straight lines and it has performed fine. I now have ...
1 vote
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### How to calculate the distance and Azimuth from Point A to Point B in QGIS

Looking to add the Distance and the Azimuth from SPLat/SPLong and to EPLat/SPLong Points. Is there an easy way to do this in QGIS.
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### Calculating point intersection from Azimuth and UTM coordinates

I have a control board point(CB) that I need to calculate the position of. I took the azimuth and the elevation of that point relative of two other known points(of which are known Easting, Northing ...
481 views

### How to convert/desurvey Directional Survey measurements into XYZM points?

I have a spreadsheet of Wellbore Drill data and would like to generate an XYZM path (LineString) that connects the surface hole location (SHL) to the bottom hole location (BHL) using the actual path ...
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### Syntax for specifying a parameter input from an attribute field in QGIS model designer

If I have a layer with an azimuth field, I can easily use that field to define the direction of the wedge buffer by clicking on the button next to the azimuth value and specifying the field type and ...
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1 vote
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### Drawing a segment of azimuth from values defined in Leaflet

Following the query: QGIS drawing segment of azimuth from values defined I would like to do something similar in Leaflet. Unfortunately, I cannot use the QGIS2Web plugin for this purpose, because I ...
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### QGIS drawing segment of azimuth from values defined

I have the range of azimuth defined in the data attribute table as you see below: And as a result, I want to have some visual section of the bearing, determined by the azimuth I and azimuth II values ...
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1 vote
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### How to "unravel" a polar continent (i.e. Antarctica) from azimuthal projection and convert it into equirectangular?

I have very recently gotten into cartography and map projection, and I wanted to visualise the map from Avatar: The Last Airbender into a proper equirectangular map. Here is the map for those ...
1 vote
219 views

### Adding Azimuth to each point in GeoJSON

I have a GeoJSON which returns a set of points, for each point I have different azimuth(rotation) is required. I have tried using the rotate property of OpenLayers, however when I use it all the point ...
902 views

### How to calculate azimuth from the south, latitude, departure with two points?

I'm making a Line class in python and the attributes we need to put in are the first point, end point, latitude, departure, distance, and azimuth (from the South). The points consists of eastings and ...
1 vote
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### Calculating azimuth angle from two X,Y,Z points

I'm following @whuber's post for calculating azimuth and elevation angles based on two vector3's. The elevation equation works great and gives me numbers that makes sense. I'm running into issues with ...
1 vote
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### PostGIS: How to find Nearest Neighbour but only within a direction range?

I am attempting to find the nearest neighbour to a geometry in a certain direction but am becoming stuck at the planning stage. I understand the basic tools that I need but am failing to find anything ...
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1 vote
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### How to calculate the azimuth of an offset point/line?

After receiving and answer to this question, I am stuck with another problem. For context, my end goal is to assess windward/lee side of a forested edges (line segments) in respect to a dominant wind ...
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1 vote
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### Drawing with interior angle and distance

In QGIS Azimuth and distance plugin draws with azimuth angle and distance. I want to draw with interior angle between consecutive lines. For the starting point and base station(reference point to plot ...
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### Azimuthal Orthographic projection

I'm trying to create a globe view in QGIS 3.16.1 with an Azimuthal Orthographic projection. This is my projection codes: +proj=ortho +lat_0=32.4279 +lon_0=53.688 +x_0=0 +y_0=0 +R=6371000 +units=m +...
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### Calculate Azimuth from polygon in GeoPandas

Is there a simple way / ready-to-go function to calculate the azimuth of 2D-polygons in a GeoPandas DataFrame? My goal is to eventually compute azimuth angles of building footprints. Most of the ...
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### Adding direction and lengths of semi-major axes of ellipses to their attribute tables in ArcMap [closed]

I made a polygon shapefile with hundreds of ellipses (using the ellipse tool). I want to know their orientations and the lengths of their semi-major and semi-minor axes (and add these to their ...
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### PostGIS rotating a line string to be vertical when viewed on screen

I'm building a Node.js application that will display Google Maps satellite images of golf course holes. I have 2 GPS points I'm pulling from a PostgreSQL database and I need to be able to take any ...
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### Pyproj inverse transform returns NaN with EPSG that is not 4326

I am using pyproj inverse transform to add azimuth and distance "info" to an ordered geodataframe and keep getting unexpected NaN results when I use a local UTM-based EPSG. It works fine in ...
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### Using GeoPandas to find crossing azimuths

I have got a series of UTM coordinates and azimuths like that: Point one: Z23, 603484.00m E,7781714.00m S, Azimuth 222° Point two: Z23, 600593.00m E,7781310.00m S, Azimuth 137° Those azimuths (should) ...
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### Orientation of linestring with North arrow pointing up

With PostGIS I am trying to calculate the azimuth of a linestring in order to use it then in a print composer in QGIS, using an atlas. But since the azimuth is calculated by comparing startpoint and ...
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### Finding coordinates by Azimuth in QGIS

In QGIS I am working on a forest project. I have one central point (I know coordinates of it), then I have azimuth and distance of trees from this central point. How can I find coordinates of trees?
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### Calculate azimuth angle in QGIS

I have a few exercises to do and I can't do it at all. I am newbie to this field. I use QGIS 3.4. Exercise 1 What is the azimuth between the starting point and the Z place? I must write the value in ...
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### 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( ...
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### Azimuth calculation, extending lines

I am trying to create a line feature as the result of another line in PyQGIS. The new line should start, where the old "ends", face the "same direction" and should have a defined length of X. ...
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### Compute the azimuth between two UTM32N points using Java GeoTools

I am using Java GeoTools to compute the azimuth between two UTM32N points, e.g. between POINT(496383,5419109) and POINT(528196,6070949). Is it possible to do so without converting the points to WGS84 ...
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### Abnormal results projecting WGS84 to local Azimuthal Equidistant projection with pyproj

I am trying to project regular WGS84 coordinates to a local projected system (Azimuthal Equidistant), using meters and centered on the eiffel tower (as an exemple). I am using python 3.8.2 and pyproj ...
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### Why there is a different relative to Geodetic Azimuth from Arc Map from the original datums and transformations?

We where conducting a displacement for some BM (Old vs New values), we made calculations on different platforms for the North, East, Elevations. We used the NGS NCAT, Inverse 3D, TBC and manual ...
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### Getting the latitude and longitude coordinates (to plot 2D) from a well survey

I basically want to do what you did here How to create a layer of directional/horizontal wells?. I am able to get the coordinates from a well survey to create a shapefile to be able to visualize the ...
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### Azimuth calculations using PyQGIS

According to the QgsDistanceArea docs, an azimuth for computeSpheroidProject should be: in radians, clockwise from North So, to build a new point with computeSpheroidProject I use math.radians(...
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### Selecting a line segment with an azimuth value closest to the azimuth value of another line segment in QGIS

I have a road network dataset and a dataset that consists of multiple disconnected lines of varying lengths in QGIS. Most of these lines are (largely) parallel to the road network, but their shape ...
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### Determining azimuth of continuous polyline segment

I have a polyline which represent the river bank of a particular section of a river drawn based on Satellite imagery. As you can see in the picture, it is drawn in red color. I have also a vertices ...
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### Sentinel-1a real azimuth resolution

I was exploring this satellite's payload characteristics on ESA's website and I saw that it's azimuth resolution varies a lot. For example azimuth resolution for IW mode is 22m (https://sentinel.esa....
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### Calculating azimuth between 2 points

I have been trying to use the azimuth expression function editor between 2 points. However, I am not getting it to work. I am obviously misunderstanding how to create the expression itself. This is ...
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### Calculating azimuth values relatively along line for its segments using PostGIS

I'm trying to make this calculation in SQL with PostGIS: azimuth_1 + (Sum rel_azimuth_2 to rel_azimuth_7) rel_azimuth_x is always the angle beetween the actual subsegment_x and one subsegment_x-1 ...
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