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Mastering Development

OSMnx: Is there a way to find an accurate shortest path between 2 coordinates?

I want to ask if there is a way to find the accurate shortest path between 2 coordinates. The 2 coordinates are (-33.889606, 151.283306), (-33.889927, 151.280497) as shown in the picture. The black path is the ideal path, and the red one uses get_nearest_node. Here are the codes: import folium import osmnx as ox import […]

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Mastering Development System & Network

Is It possible to send a file by FTP from an online web server to an Apache server on a local machine?

I am trying to send files from a web server to a local machine, as part of a larger task involving FTP transfers. I have already found ways to achieve the following FTP transfers without a hitch: Web Sever > Another Web Server (and back again); Apache Server on Local Machine > Web Server (I […]

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Mastering Development

MPI Segmentation Fault On Multiple Nodes Only

So I am currently building the basis of a control program to run on multiple raspberry Pis that will use all of the available cores on each pi. When I test my code on one of the nodes using all of the cores it works fine, but using multiple nodes gives me a segmentation fault. […]

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Mastering Development

How could I give in Kruskal’s algorithm the name of the locations (vertex) in the form of strings, more precisely city names?

I wrote the following code with Kruskal’s algorithm and I don’t know how to modify it so that the locations are city names. public class Vertex { public char value; private char[] alphabet = {‘A’,’B’,’C’,’D’,’E’,’F’,’G’,’H’,’I’,’J’,’K’,’L’,’M’,’N’,’O’,’P’,’Q’,’R’,’S’,’T’,’U’,’V’,’W’,’X’,’Y’,’Z’}; public Vertex(char val) { this.value = val; } public int getIndex() { int idx = new String(alphabet).indexOf(this.value); return idx; } […]

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CMS Drupal Mastering Development

Sending email from custom module

I’ve created my first Drupal 8 module which is a form that emails its output to a staff person. Everything works except for the email portion which doesn’t throw any errors, but just doesn’t do anything. I’m not sure what I’m doing wrong. I have the Drupal 7 version of the code running on the […]

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Development

Gulp-embed-svg not embedding svgs into html

I’m trying to embed an external svg image into my html file. I’m pretty new to gulp so I’m no sure I have this setup correctly but everything else appears to work apart from the svg images. To embed the images, I’m trying to use: Gulp-embed-svg but it wont work. When the build html file […]

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Development

How to convert this Query to HiveSQL?

I am getting an error when running this query in Databricks. How to convert the following SQL Query to HiveSQL: %sql — To clear table if it already exists DROP TABLE IF EXISTS air_d; — Create temp table syntax CREATE TEMP VIEW air_d AS select *,airport_1+’-‘+airport_2 as route,cast(citymarketid_1 as varchar)+cast(citymarketid_2 as varchar) as city_route from […]

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Development

Vulkan – vertex buffer update

I want to perform the vertex buffer update. I’m starting from empty buffer and I will add new points. The amount of added points is not frame-dependent. It can by one per frame, few or none. In OpenGL I just allocated memory for all points which will be added (constant max size), use the glBufferSubData […]

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Development

DataFlow 3.x default libraries

My Python code contains the following line: from googleapiclient import discovery When code is executed I get: ImportError: No module named ‘googleapiclient’ Traceback (most recent call last): File “/usr/local/lib/python3.5/site-packages/apache_beam/runners/worker/sdk_worker_main.py”, line 134, in main _load_main_session(semi_persistent_directory) File “/usr/local/lib/python3.5/site-packages/apache_beam/runners/worker/sdk_worker_main.py”, line 237, in _load_main_session pickler.load_session(session_file) File “/usr/local/lib/python3.5/site-packages/apache_beam/internal/pickler.py”, line 307, in load_session return dill.load_session(file_path) File “/usr/local/lib/python3.5/site-packages/dill/_dill.py”, line 410, in load_session […]

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Development

PyOpenCL Error when accessing result of kernel operation (RuntimeError: Unable to compute length of object)

I’m new to OpenCL implementations and trying to make a relatively simple data processing script. The script works like so: Before OpenCL side of script Load data Prepare some arrays for use in processing This is all done before the comment: ## Step #1. Obtain an OpenCL platform. OpenCL side: Acquire platform and device, and […]