simple orthographic drawing

1. First create a new UIView class2 in UIView of a class. M inside Append-(Instancetype) initWithFrame: (CGRect) frame{self = [super Initwithframe:frame];if (self) {self.clearscontextbeforedrawing = YES;}return self;}-(void) DrawRect: (cgrect) Rect {[Self drawcurve]; Drawing ECG Type[Self drawgrid]; Plot the ECG background grid}-(void) drawgrid{}-(void) drawcurve{}Note When you draw a new drawingCgcontextref context = Uigraphicsgetcurrentcontext ();//

We have learned about the basic interface and basic knowledge of AutoCAD, in this section will use AutoCAD to draw some simple graphics, to further enhance the perceptual knowledge of AutoCAD. 2.5.1 Instance 1 draws the side view of the short tube Step 1 Create a new graphics file (1) to start the AutoCAD 2002 system, in the "AutoCAD 2002 Today (AutoCAD 2002)" window, select the Create drawings (creating graphics) tab. (2) to determine the "Templa

To give you illustrator software users to detailed analysis of the design of a simple love bag icon to draw a tutorial. Tutorial Sharing: 1, in the AI software, create a new 800*800 document, select Rounded Rectangle tool, draw a rounded shape, and fill the color, as shown in the picture 2, then select the rounded corner of the graphic, press CTRL + C copy, press Ctrl+f paste, the rounded corner of the bottom side of the figure to mo

Provides a variety of official and user-released code examples. For code reference, you are welcome to exchange and learn Chart. js is a simple, object-oriented tool library for drawing charts for designers and developers. 6 chart types Chart. js helps you visualize your data in different ways. Each type of chart has an animated effect and looks great, even on the retina screen. HTML5-based Ch

A simple tutorial on drawing music scores using the wave module in the Python standard library, pythonwave In this article, we will explore a simple way to visualize your MP3 music favorites. The final result of this method will be a hexagonal grid map mapped to all your songs, where similar audio tracks will be adjacent. The colors in different regions correspon

With the SAS Gplot/gchart module, simple charts can be drawn.1. Bar chart, doughnut chart, pie chart and so on;Proc Gchart data=xxxxx;Vbar varname;RunThis process contains several options, note that the difference between the subgroup and group options, subgroup is not listed, and group is drawn separately for different groups;2. Scatter plots, line charts, etc.Proc Gplot data=xxxxx;Plot y*x;RunWhen there are several different lines on the same table,

"Android:uselevel= "false" />ResultsWe can find that theAndroid:gradientradius= "$"It's not working anymore, butAndroid:centerx= "50%" android:centery= "50%" It works the same way.4. We try to change the size of the next shapeAbove our size is not set, are adaptive control size, now we modify the followingTest controlsImageButtonAndroid:id= "@+id/bt"Android:layout_width= "200DP"Android:layout_height= "200DP"android:layout_centerinparent= "true"Android:background= "#000000"android:src= "@drawabl

1. Get EchartsOfficial website Download: http://echarts.baidu.com/download.html2. Introducing the Echarts file in the HTML pageDOCTYPE HTML>HTML> Head> MetaCharSet= "UTF-8"> title>Echarts Practicetitle> Scripttype= "Text/javascript"src= "Js/echarts.min.js" >Script>//Here is a JS file that introduces Echarts Head> Body> Body>HTML>directory structure of the file:3. Draw a simple chartDOCTYPE HTML>HTML> Head> Me

Simple examples of HTML5 SVG rectangular painting: html5svg rectangular drawing Recently I am a beginner in HTML5. I just learned SVG step by step and accumulated some personal experiences and code. I hope to share with you the "svg rectangle" section today. 1. Simple rectangle As follows: Key code: Code parsing: Rect indicates a rectangle; The width and height

#import @interface MyView: UIView @end#import "MyView.h"@implementation MyView-(instancetype) initWithFrame: (CGRect) frame { Self = [super Initwithframe:frame]; if (self) { Initialization code}return self; }-(void) DrawRect: (cgrect) rect { cgcontextref context = Uigraphicsgetcurrentcontext(); Cgcontextmovetopoint(context, the " Ten," ); Cgcontextaddlinetopoint(context, ten, ()); Cgcontextaddlinetopoint(context, ,, ); Cgcontextclosepath(context);[[Uicolor blackcolor] Setstroke]; [[

Unit Unit1;InterfaceUsesWindows, Messages, sysutils, variants, Classes, Graphics, Controls, Forms,Dialogs, Stdctrls;TypeTForm1 = Class (Tform)Button1:tbutton;Button2:tbutton;Button3:tbutton;Button4:tbutton;Procedure Button1Click (Sender:tobject);Procedure Button2click (Sender:tobject);Procedure Button3click (Sender:tobject);Procedure Button4click (Sender:tobject);Private{Private declarations}Public{Public declarations}hthread:thandle;//definition of a handleThreadid:dword;EndVarForm1:tform1;Impl

,strtempkey.c_str (), hsubkey)) {if (error_success = = RegQ Ueryvalueex (Hsubkey,strvaluename.c_str (), 0,dwtype, (LPBYTE) Data,dwlen)) {strvalue = da Ta RegCloseKey (HKey); Close registry return true; }} RegCloseKey (HKey); Close the registry} return false; BOOL Licensemanage::setregkey (String strSubKey, String strValueName, String strvalue) {HKEY HKEY; HKEY Hsubkey; if (Openregkey (HKey)) {string strtempkey = "software\\" +strsubkey; if (error_success =

There are currently data on age and height ( fictional data)for children (males), who are interested in the relationship between elevated distribution and weight and age. Age (years) Weight (kg) Age (years) Weight (kg) 4 95 6 116 4 97 7 120 5 106 7 121 5 108 8 126 6 114 8 125 Use the function C () to enter the chi

This article introduces JavaScript code for implementing simple Canvas drawing instances. If you need it, refer to it. Define variables:[Javascript] The Code is as follows: Var startX;Var startY;Var endX;Var endY;Var radius;Var canvas = document. getElementById ("myCanvas ");Var context = canvas. getContext ("2d ");Var select = document. getElementsByTagName ("select ");Var startX;Var startY;Var endX;Var

SGU-135Drawing Lines Time Limit: 250MS Memory Limit: 4096KB 64bit IO Format: %i64d %i64u Submit StatusDescriptionLittle Johnny likes to draw a lot. A few days ago he painted lots of straight lines in his sheet of paper. Then he counted on how many zones the sheet of paper is split by these lines. He noticed that this number was not always the same. For instance, if he draws 2 lines, the sheet of paper co

TriangleCanvas PackageMouse Draw Line CodeSimple Block Slide CodeHtml5--canva Drawing 1 Simple graphics

) Center Radius: (cgfloat ) Radius StartAngle: (cgfloat ) startangle Endangle: (cgfloat ) endangle Clockwise: (BOOL ) clockwise Time: (cgfloat ) timeStrokecolor: (uicolor *) strokecolor{ uibezierpath *_path=[uibezierpath bezierpath]; [_path addarcwithcenter: Center radius: Radius startangle: startangle endangle : Endangle clockwise: clockwise]; cashapelayer *shapelayer=[cashapelayer layer]; Shapelayer. path=_path. Cgpath; Shapelayer. fillcolor=[uicolor clearcolor]. Cgcol

Below are four shapes of patterns, in which the trapezoidal and triangular are to be seen at a glance to see how the implementation works.Don't say much nonsense, just go to the code.　　Welcome Message ~ ~Simple geometric pattern drawing with pure CSS

PS Boolean operation simple drawing a wheel 1, in the PS document, using the Ellipse tool to draw a circle, and then hold down the "Alt" key, draw a small circle, as shown in the picture; 2, hold down the "shift" key, the same center, draw a small circle; 3. Continue to hold down the SHIFT key, draw a long rectangle with the rectangle tool, and then hold down the SHIFT key to draw two small

The example of this article describes the method of JS+HTML5 to realize canvas drawing simple rectangle. Share to everyone for your reference. The implementation methods are as follows: I hope this article will help you with your Web programming.