Tag：Graphical
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Time：2020-12-15
In general, human machine interface (HMI) is a user interface or dashboard that enables a person to connect with a machine, system or device. The HMI consists of hardware and software that allow the conversion of user inputs into machine control signals, which in turn provide feedback to the user. HMI technology has been used […]
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Time：2020-11-11
As for the development of graphical interface, too many languages have their own completion, but most of them are bound. Because most graphic libraries are developed based on C / C + +, and many languages provide interfaces for interaction with C, so we can complete the development of graphical interface of a language through […]
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Time：2020-11-7
Start your own handwriting a fun Tetris bar, up deformation, left and right movement, down acceleration, space blink and other functions, boring learning under canvas, F12 modify scores, experience the joy of golden finger 1. Define the interface, and buttons <div id=”by”> <div id=”title”> <! — // define the game interface — > <canvas id=”myCanvas” […]
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Time：2020-11-4
1、 What is big data visualization and its application 1. What is big data visualization It is the theory, method and technology of transforming data or information into graphics or images and displaying them on the screen by using computer graphics and image processing technology. 2. Generalized visualization 3. Visualization Science The purpose of scientific […]
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Time：2020-10-19
A practical knowledge sharing meeting of front end svg Record my technology sharing in the group, students with the same needs can refer to it It takes about 40 minutes to share the whole process 1、 Svg and front end Engineer 1. As a front-end engineer, it is impossible not to deal with SVG 2. […]
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Time：2020-10-14
1、 Common module import import numpy as np import matplotlib import matplotlib.mlab as mlab import matplotlib.pyplot as plt import matplotlib.font_manager as fm from mpl_toolkits.mplot3d import Axes3D 2、 Solve the problem of abnormal display Chinese random code myfont = fm.FontProperties (fname = font file path) The negative sign is shown as a square matplotlib.rcParams[‘axes.unicode_minus’]=False 3、 Line […]
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Time：2020-10-12
ArangoDBThe official version of 3.2 has been released, removing two major hurdles, adding a long-awaited feature and integrating an interesting feature. In addition, the official team said the new version improved arangodb’s performance by an average of 35%. At the same time, compared with version 3.1, it also reduces the memory consumption. Cluster management has […]
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Time：2020-10-11
preface This article was written at the end of July. I sorted it out without working overtime. Some very basic knowledge is worth reading for those who have just started canvas. Let’s start with a rainbow Compared with reading a variety of articles, I prefer the logic in mathematics; compared with learning a variety of […]
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Time：2020-10-9
There was nothing to do recently. I went back to work on the past knowledge points. When I came to the servlet part, I just remembered the inheritance relationship and interface implementation from top to bottom.The diagram of idea is used this time, and the result is clear at a glance. It is also easy […]
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Time：2020-10-5
We selected four popular graphic databases for experimental comparison. Python code snippets will be provided in the test to show how to use each database. After that, we will run a quick benchmark. We will run our sample queries 10000 times on i7-6700 CPU @ 3.40GHz, then compare the time required for each graphic database […]
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Time：2020-9-25
This is the first in a series of articles: visualizing with graphvizonline ASP.NETCore3 . 0 endpoint. . Part 1 – use dot to visualize your ASP.NETCore3 . 0 endpoints (this article) Part 2 – direction ASP.NET Core application add endpoint graph Part 3 – create a custom dfagraphwriter using impromptu interface to facilitate reflection Author: […]
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Time：2020-9-25
Blog moving, written at 16:23, October 19, 2017 CGAffineTransformMake(a,b,c,d,tx,ty) A D scaling, B C rotation, TX ty displacement Formula of (x, y) – > (x ‘, y’) x’ = ax + cy + tx y’ = bx + dy + ty Basic knowledge of matrix: struct CGAffineTransform { CGFloat a, b, c, d; CGFloat tx, […]
