Categories
Development

Why eigen vector is so slow?

I found that calculation of substracting two Eigen::Vector3f is slower than the substracting two strucutre. I call 10000000 times subtraction between Eigen::Vector3f and self-defined structure. I found the speed of self-defined structure is 20 times faster then Eigen::Vector3f. Here is my test code. #include<Eigen/Eigen> #include<iostream> #include “timer.h” struct Point { float x, y, z; Point […]

Categories
Database Development

I am trying to check current date with date-range of database, but getting issue with codeigniter model query

I am trying to check current date with date-range of database.. but getting issue with codeigniter model query. My code snippet- codeigniter model function: public function chkCoupCode($coupon_code) { $tod_dt = date(‘Y-m-d’); $this->db->query(“SELECT * FROM `tbl_coupons` `cc` LEFT JOIN `tbl_coupons_validity` `ccv` ON `cc`.`coupons_id` = `ccv`.`coupons_id` WHERE `coupon_code` = ‘”.$coupon_code.”‘ AND `cc`.`status` = ‘1’ AND `cc`.`is_active` = […]

Categories
Development

Typescript Types – question about composite types using infer

Using redux, I ended up writing the following snippet in my store code: type CombinedParamTypes<T extends { [key: string]: (state: any, action: any) => any; }> = T extends { [key: string]: (state: infer R, action: any) => any; } ? R : never; type CombinedReturnTypes<T extends { [key: string]: (…args: any) => any; }> […]

Categories
Angular Development

SignalR sending POST notification to Angular Client

I’m trying to follow this tutorial! But via postMan, when I call put method I got Could not get any response when I call https://localhost:5001/api/notify. My routes: app.UseSignalR(routes => { routes.MapHub<MessageHub>(“/message”); routes.MapHub<NotifyHub>(“/notify”); }); Notification Controller: using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.SignalR; using RealTimeMessage_Server.Models; using RealTimeMessages.HubConfig; namespace RealTimeMessage_Server.Controllers { [Route(“api/[controller]”)] public class NotificationController : Controller { private readonly […]

Categories
Development

Data retrieved from API using Postman different than when using C# program

Data which i retrieved from a sigfox api using postman is different than the data which i got when using c# program using http client. the api contains query parameters suchs as limit=(a number) — number which limits the number of messages i can receive(doesnt affect the problem) and before = (unix time) since= (unix […]

Categories
Development

SelectedValue set before ValueMember in combobox (SelectedValuePath, DisplayMemberpath) [duplicate]

This question already has an answer here: Bind value to ComboBox from dictionary 2 answers When initializing the Combobox, the SelectedValue is set before SelectedValuePath and DisplayMemberPath. If SelectedValuePath and DisplayMemberPath are not set, SelectedValue is set by calling SelectedItem.ToString(); (source). This is an issue, because the ItemsSource is a dictionary and I need it […]

Categories
Development jQuery

jQuery datepicker not working in jQuery Dialog box

jQuery datepicker works fine on a static page, but I can’t get it to work on a jQuery Dialog page. This is a wordpress site. I know everything necessary is included because it works on a static page. The dialog page is triggered with a button click. This is the code on the static page […]

Categories
Development

Passing correct properties to popup notification

I want to show a notification with the upload status. I took over a project in React & ASP.NET and I am relatively new to this. The question is quite simple, yet I am struggling to solve it: How do I display a popup notification showing which files have been successfully been uploaded and which […]

Categories
Development

EnumMap T[] toArray(T[] a) implementation

I found that EnumMap T[] toArray(T[] var2) have this implementation: public <T> T[] toArray(T[] var1) { int var2 = this.size(); if (var1.length < var2) { var1 = (Object[])((Object[])Array.newInstance(var1.getClass().getComponentType(), var2)); } if (var1.length > var2) { var1[var2] = null; } return (Object[])this.fillEntryArray(var1); } I don’t understand what is really means: if (var1.length > var2) { var1[var2] […]

Categories
Development

The WebAgg backend requires Tornado

I have found this python code for bezier_curves in Github and the link of the code is shown below: https://gist.github.com/Juanlu001/7284462 When I run the code I always get this error as shown below: Traceback (most recent call last): File “C:\Users\raineen\AppData\Local\Programs\Python\Python37\lib\site-packages\matplotlib\backends\backend_webagg.py”, line 27, in <module> import tornado ModuleNotFoundError: No module named ‘tornado’ During handling of the […]