geodesy | A pragmatic and efficient geodesy toolkit

by xoolive Python Version: Current License: MIT

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A pragmatic and efficient geodesy toolkit

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geodesy Key Features

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geodesy Examples and Code Snippets

r Calculate lamber distance between two points .

python

Lines of Code : 75

License : Permissive (MIT License)

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def lamberts_ellipsoidal_distance(
    lat1: float, lon1: float, lat2: float, lon2: float
) -> float:

    """
    Calculate the shortest distance along the surface of an ellipsoid between
    two points on the surface of earth given longitudes an

Community Discussions

Trending Discussions on geodesy

How does the library "Symja" need to be imported with Gradle in order to work with the Elasticsearch server module?

Google Maps Place Picker package Error in Flutter

npm update fails for Vue 2 project, created with vue-cli

3D (7 Parameter) Helmert Transformation Not Working in Python

Using sf in R - what is the best way to add geometry to large point dataset?

Spring Runtime Error - Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument

Convert NZMG coordinates to lat/long

BigQuery StandardSQL udf to call external .jar libraries

How to get the original points the cluster contained using ELKI's DBSCAN?

How to profile JavaFX maven project in NetBeans

QUESTION

How does the library "Symja" need to be imported with Gradle in order to work with the Elasticsearch server module?

Asked 2021-Apr-29 at 17:51

For a project I wanted to extend Elasticsearch and therefore need to use the package Symja. In the Github for Symja, there is a manual for the usage with Maven provided.

Since the Elasticsearch repository is build with Gradle, I also need to use Gradle instead of Maven. Testing the suggested example Symja project, the following build.gradle (which I basically generated by using gradle init and adjusted a little) imports the library flawlessly:

...

ANSWER

Answered 2021-Apr-29 at 17:51

For the sake of completeness, I want to subsume at least the part of the solutions given by @axelclk and @IanGabes that worked. First of all, it seemed to be necessary to manually add all implicit dependencies plus the repositories they originate from to server's build.gradle, corresponding to the pom.xml files of matheclipse-core and of matheclipse-external:

Source https://stackoverflow.com/questions/67066752

QUESTION

Google Maps Place Picker package Error in Flutter

Asked 2021-Apr-17 at 14:08

I am getting a huge list of error when I try to run the following code with google_maps_place_picker package in flutter.

...

ANSWER

Answered 2021-Apr-17 at 14:08

You are using import 'package:google_maps/google_maps.dart';

google_maps package only supports web. For mobile support should try out flutter_google_places, google_maps_flutter or any other package.

Source https://stackoverflow.com/questions/67138908

QUESTION

npm update fails for Vue 2 project, created with vue-cli

Asked 2021-Mar-20 at 11:40

I've created a Vue 2 project with vue-cli and tried to run npm update. Unfortunately, I receive the following error:

...

ANSWER

Answered 2021-Mar-06 at 13:39

maybe you can try to npm i -g npm-check-updates then in the root folder try to execute ncu -u this will update your dependencies, devDependencies and peerDependencies

Source https://stackoverflow.com/questions/66506119

QUESTION

3D (7 Parameter) Helmert Transformation Not Working in Python

Asked 2020-Jul-07 at 07:26

I am trying to create a program in Python that will let me check the Geodetic Transformations that the geodesy app in my survey software spits out. I have a test point and know that my program currently returns total rubbish.

The formula that I am using is the 7 Parameter Halmert Transformation:

Vb = T + (1 + s * 10^−6)•R•Va

My code is:

...

ANSWER

Answered 2020-Jul-07 at 07:26

The Helmert transformation is for mapping a point in cartesian (ECEF, aka earth centred earth fixed) coordinates relative to one coordinate system, to the cartesian coordinates relative to another coordinate system.

If you want to transform lat,long,height coordinates relative to the first coordinate system to lat,long,height coordinates relative to a second, the drill is:

Source https://stackoverflow.com/questions/62767267

QUESTION

Using sf in R - what is the best way to add geometry to large point dataset?

Asked 2020-Jun-05 at 05:28

Disclaimer: I have only started using sf so I might be (hopefully!) missing something obvious here.

I have the AusGeoid2020 data which consists of 15,454,800 points and some attributes to convert between ellipsoidal heights (i.e. GPS height) and the AHD.

Although the file is large (914Mb) it's easy enough to read in:

...

ANSWER

Answered 2020-Jun-05 at 05:28

We can use st_as_sf as follows. The default setting would remove the columns with coordinate information (in this case, Longitude and Latitude). If you want to keep those columns, set remove = FALSE.

Source https://stackoverflow.com/questions/62207255

QUESTION

Spring Runtime Error - Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument

Asked 2020-Feb-15 at 00:20

I've inherited a legacy Java app require JDK 7.

The app will compile, but I'm getting runtime errors which look like Hibernate entityManagerFactory issues.

The strange part is this app works on another developers machine. He even sent me his Tomcat directory, I have tried it on a Mac and on an Ubuntu machine. No matter where I run it, the runtime errors persist.

I think the problems is an init method in entityManagerFactory class,

...

ANSWER

Answered 2020-Feb-14 at 20:04

You have a nested NullPointerException in what looks like your PersistenceConfiguration class

Source https://stackoverflow.com/questions/60232767

QUESTION

Convert NZMG coordinates to lat/long

Asked 2019-Nov-15 at 22:17

I have a bunch of NZ Map Grid coordinates, which I want convert to lat/long. Based on this question, here is what I tried.

...

ANSWER

Answered 2019-Nov-15 at 01:45

Turns out it is pretty simple, if you have the rgdal package installed, the required nzgd2kgrid0005.gsb file is included and you don't need to download anything extra.

You just need to use the full PROJ.4 string as outlined in Mike T's answer.

Source https://stackoverflow.com/questions/58585146

QUESTION

BigQuery StandardSQL udf to call external .jar libraries

Asked 2018-Sep-13 at 21:25

How do i call external java libraries in the bigquery UDF. Is it possible?

Following is my use case: Is it possible to do the lat/long calculations inside standard sql bigquery UDF.

...

ANSWER

Answered 2018-Aug-29 at 20:31

BigQuery UDFs support JavaScript as the language, not Java, so it is not possible to call an external Java library. You can, however, load external libraries with JavaScript UDFs.

Source https://stackoverflow.com/questions/52085362

QUESTION

How to get the original points the cluster contained using ELKI's DBSCAN?

Asked 2018-Jan-16 at 10:09

I have 2 questions for the following code: