cropper crop picture and canvas composite picture

Before you can crop a composite picture, you first need to understand canvas and cropper. canvas 1. Create a node first: var c=ocument.createElement("canvas"); and 2. Create a drawing environment for c: var ctx = canvas.getContext("2d"); 3. You can set the width and height: canvas.width=330; canvas.height=440 (see how bi ...

Added by crowezr on Sun, 26 Apr 2020 19:31:39 +0300

Jquery plug-ins (commonly used plug-in libraries)

With the end of Jquery knowledge points, I also began to touch the framework. At the beginning, I always hear the words "plug-in" and "framework". I wonder what's the difference between framework and plug-in? "?? There are countless plug-ins. Any function in a web page can be called a plug-in. It can be extracted separa ...

Added by sdlyr8 on Sat, 25 Apr 2020 20:18:05 +0300

Building Unity game framework 2019 (30, 31) MenuItem display order problem & Class extraction

In the previous article, we have come up with two core learning ideas: According to the problem to learn, and collect. Take the initiative to learn and think about the applicable scenarios. Let's solve the problem of MenuItem display order today. At present, MenuItem is shown as follows: Let's take a look at the definition of MenuItem. ...

Added by billynastie on Fri, 24 Apr 2020 09:06:02 +0300

WeihanLi.Npoi export Excel according to template

Intro The original export method is more suitable for simple export. Each data is in one row. Although the data column has a high degree of customization, if one data corresponds to more than one row, it can't be done. So we want to support export according to template. In version 1.8.0, the function of export according to template is introduc ...

Added by Thresher on Tue, 21 Apr 2020 18:03:02 +0300

EFCore Extended Select Method (Customize Query Statements to Entities)

EFCore Extended Select Method (Customize Query Statements to Entities) Often when working with databases, queries return fields that are inconsistent with what we define as entities, so it is cumbersome to create a large number of models for UI or interface layers and to manually correspond to the fields.This article addresses these repeti ...

Added by welsh_sponger on Fri, 17 Apr 2020 20:51:39 +0300

Use iCarousel to achieve the effect of 3D horizontal screen sliding

iCarousel introduction Open source address: https://github.com/nicklockwood/iCarousel iCarousel is a class based on scrollView. The main effect type of this class is rotation. For iphone, iPad and Mac OS. iCarousel already comes with many basic effects. As a third-party framework integrated into the project, iCarouse ...

Added by Jim_Bo on Wed, 15 Apr 2020 21:36:44 +0300

JS Component Series - JsPlumb Production Flowchart and Detailed Relevant Effects

Top Foreword: The previous project used JsPlumb, a drag-and-drop flowchart technology from the Web, which is not really difficult, but it feels good to share some flash-like effects made with HTML in the project. Jsplumb website: https://jsplumbtoolkit.com GitHub: https://github.com/sporritt/jsplumb/ 1. Effect Diagram Display ...

Added by RTT on Wed, 15 Apr 2020 03:55:48 +0300

Mars open source monthly (March 2020)

This month, Mars released 0.4.0b1 ,0.4.0b2 and 0.3.2 as well as 0.3.3 , click the link to view the detailed Release Notes. The two releases this month are special cases. 0.4.0b2 fixes the more urgent problems in 0.4.0b1. Mars project release cycle Here is a brief introduction to the release cycle of Mars. Mars takes one month as the release cy ...

Added by Supplement on Mon, 13 Apr 2020 10:57:13 +0300

EF multi tenant instance: fast implementation of sub database and sub table

Preface In this essay, we continue to demonstrate how to implement EF multi tenancy. Today, we mainly demonstrate the transformation under multi tenancy, as shown in the following figure     Implementation Project structure This time, our sample project is streamlined, with only one API project, directly containing all the code. As ...

Added by akumakeenta on Mon, 06 Apr 2020 04:53:13 +0300

http network request sent by qt

4. Send http request 4.1 copy mynetworkobject.cpp and mynetworkobject.h to your project (ps: these two documents were found on the Internet, and I have modified them) 4.2 add "mynetworkobject.h" to the header file // I added it in mainwindow.h (no special explanation below, take this demo as an example) #inc ...

Added by Strings on Mon, 06 Apr 2020 04:08:50 +0300