Questions tagged [azimuth]
An azimuth is "a [particular kind of] angular measurement in a spherical coordinate system."
117
questions
0
votes
0
answers
18
views
Estimate position of shadows cast by clouds in GEE
I have a script for cloud masking that does its job well:
var START_DATE = ee.Date('2022-06-15');
var END_DATE = ee.Date('2022-07-15');
var MAX_CLOUD_PROBABILITY = 65;
var region = region_name
Map....
0
votes
0
answers
27
views
Geometry calculation in ArcMap
I am using ArcMap 10.8.
I have many point (i.e. off-scale) bridges for which it is necessary to calculate the strike azimuth of the symbol.
How can I do this?
I know about the "line bearing" ...
1
vote
0
answers
106
views
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 ...
- 11
4
votes
1
answer
252
views
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 ...
- 387
0
votes
0
answers
232
views
How to transform from a set of ECEF coordinates to azimuth and elevation?
I have a set of ECEF (X,Y,Z) values for the receiver and a satellite. I would like to compute the elevation and azimuth angles according to WGS84 shape of the Earth.
When we have a WGS84 ellipsoid ...
3
votes
1
answer
120
views
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 ...
0
votes
1
answer
144
views
How to calculate average azimuth of a 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 converting that slope to degrees (azimuth), but I get ...
- 111
1
vote
0
answers
112
views
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 ...
- 11
1
vote
0
answers
120
views
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 ...
- 11
1
vote
2
answers
519
views
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.
- 19
0
votes
0
answers
211
views
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 ...
- 1
0
votes
1
answer
316
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 ...
- 9
2
votes
2
answers
270
views
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 ...
- 71
1
vote
1
answer
853
views
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 ...
- 3,965
2
votes
1
answer
244
views
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 ...
- 3,965
1
vote
0
answers
164
views
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
0
answers
170
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 ...
2
votes
1
answer
658
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
0
answers
1k
views
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 ...
- 111
1
vote
1
answer
1k
views
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 ...
- 165
1
vote
1
answer
401
views
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 ...
- 95
1
vote
1
answer
170
views
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 ...
- 31
3
votes
1
answer
451
views
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 +...
- 61
3
votes
1
answer
2k
views
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 ...
- 165
3
votes
0
answers
70
views
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 ...
- 31
1
vote
0
answers
162
views
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 ...
- 81
1
vote
1
answer
797
views
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 ...
- 960
2
votes
1
answer
767
views
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) ...
- 349
0
votes
1
answer
188
views
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 ...
- 1,161
2
votes
0
answers
471
views
Finding coordinates by Azimuth
I am working on a forest project. I have one central point (I know coordinates of it), than I have azimuth and distance of trees from this central point.
How can I find coordinates of trees?
p.s. ...
0
votes
1
answer
1k
views
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 ...
3
votes
1
answer
771
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(
...
- 31
3
votes
1
answer
193
views
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.
...
- 2,608
4
votes
1
answer
396
views
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 ...
- 179
3
votes
1
answer
665
views
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 ...
- 323
-1
votes
1
answer
41
views
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 ...
- 1
0
votes
0
answers
205
views
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 ...
6
votes
1
answer
647
views
Azimuth calculations - 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(...
- 115
2
votes
0
answers
85
views
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 ...
- 539
2
votes
1
answer
226
views
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 ...
- 43
4
votes
1
answer
244
views
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....
- 51
2
votes
1
answer
231
views
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 ...
- 95
5
votes
2
answers
839
views
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 ...
- 365
3
votes
1
answer
390
views
Calculating azimuth values along line for its segments using PostGIS [closed]
How can I calculate the azimuths along a line on its segments ?
Is there a function in PostGIS for this?
I want to calculate the min, max, sum and avg value of the azimuths for each segment.
- 365
4
votes
1
answer
476
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 ...
1
vote
0
answers
60
views
Calculating Satellite Azimuth from Landsat WRS data?
I found the below answer in regards to how one identifies the satellite azimuth from Landsat Images, but am not sure how you translate the path/row into azimuth angle. I have searched for such, but am ...
- 11
3
votes
1
answer
141
views
Find the side of a polygon pointed by an azimuth
I have a dataset of points (longitude, latitude) and I used QGIS get a Voronoi diagram of these points. Each point has an azimuth and a wedge width that I also managed to visualize in QGIS.
As you ...
- 31
2
votes
0
answers
131
views
Find orientation of rectangle in PostGIS for QGIS composer
I am storing rectangle in my DB in order to automatize the creation of technical maps of a networks. I am creating these maps in QGIS using the print composer. Many of these rectangles are oriented (...
- 1,161
1
vote
0
answers
845
views
Calculating azimuth of direction in OpenLayers? [closed]
I am developing an application with OpenLayers and I need to calculate the angle between two segments or directions.
I thought about getting the azimuth of those segments and then calculate the ...
- 11
1
vote
1
answer
1k
views
QGIS - tool to plot polygon from point with known bearings and distances
Is there a tool that can convert a point dataset to a polygon based on some known parameters.
We will have
1- x,y
Azimuth
3.Distances in m for a- point in the direction of 2 (the azimuth) (200m), ...
- 7,958