best drawing program

Do not know everyone in the development of county-level power grid dispatching automation system, whether it will encounter a problem is: to draw a power system wiring diagram. Everyone should know that in fact, the power system of the first wiring diagram is more complex, if you want to use the general programming method to draw, basically is not feasible. So what should we do to be more efficient and direct? Today, the small series will give you a method, that is: the use of C language editing

In the process of developing county power grid dispatching automation system, the author encounters a problem to draw the primary wiring diagram of power system. As the power system wiring diagram is more complex, there are some special symbols, such as transformer symbols, switch symbols, and so on, with general programming methods to draw more difficult, therefore, the author uses C language to develop a hand-drawn power system wiring diagram of the keyboard

Author: Zhu Jincan Source: http://blog.csdn.net/clever101 Generally, in the drawing program, it is relatively simple to pick up the rectangle and the polygon. For example, in the crect and crgn classes of MFC, The ptinrect or ptinrgn function directly determines whether the vertex is in the graph. We pay attention to the way we pick up a line segment, because we generally use the width of a pixel to draw a

modified drag-and-drop operation handler: Public void mousedragged (mouseevent e ){Graphics G = getgraphics ();Copy_from_offscreen_buf (g );X1 = E. getx ();Y1 = E. Gety ();Update_buffer (G, new drawitem (x0, y0, X1, Y1 ));G. Dispose ();} Note: In this method, we didn't update the backend buffer. This is because when you drag the mouse, the line is displayed on the drawing board, but the line is not actually painted. so when should I buffer updates in

After reading this article, you can implement the following interface: When I first saw RCP, I dreamed that one day I would be able to use it to develop a gorgeous 2D and 3D program, through the previous exploration, today can finally uncover the mystery of 2D drawing. In the bundle Resource manager's plug-in dependencies, we can see the Org.eclipse.swt.graphics package at a glance, and there is no dou

Q: When drawing with CorelDRAW, the "Illegal operation of this program" appears, How to solve? Why does it suddenly appear that "the program performs illegal operations and needs to be closed" when drawing in CorelDRAW? How to solve? A: This is probably the most Coreldraw plotter headache, but Coreldraw12 later versi

Tag: Call false. com source file creat setw PAC vector BSPOriginal: http://www.linuxidc.com/Linux/2011-08/41220.htmWhen I was learning MFC, the most classic example of getting started is the drawing program, which acts as the Hello World under the console application.Now to start QT, can not help but nostalgia, so also wrote a drawing

Snake-C-drawing program based on easyx graphics library (on): basic control function, easyx Since I learned the C language, I have always wanted to make a game. Today I am paying for it. The first time I wrote it, I wrote a lot of bugs. Today, I read several greedy snakes on the Internet and re-wrote them once. The effect is good. The following is a detailed construction process. Due to time constraints, t

sequence, Xiao Ming will not know how to write.Figure 5.1 Program implementation of automatic linesDefines a Sequencemanager class, which is used to identify lines and manage pointsequence classes.vb.netC #Sixth section projectionFinally, the AR program projects the computed image onto the screen.The image and realistic image real mosaic, xiaoming can follow the screen to copy.Figure 6.1 Non-PS AR demoIn f

+ = array.y*Ten;5 6SetColor (BLUE);//Set Snake color7 //Draw a snake8Rectangle (snake.x-5, Snake.y-5, Snake.x +5, Snake.y +5); 9}and write a driver .1 #include 2 #include 34typedefstructPosition//Coordinate structure5 {6 intx;7 inty;8 }pos;9 Ten Pos Snake; One Pos Array; A - intMain () - { thesnake.x = -; snake.y = -; -array.x =1; array.y =0;Initgraph (640,480); Initializing the graphical interface - while(true) - { + command (); - move ();Sleep (100); + } A

First two chapters "Activiti: Applying to the Work" "Chapter One" workflow Core API "Activiti: Applying to the Activiti" "chapter II" configuration file XML integration with 100,000 why This chapter begins with a simple HelloWorld program to warm up the child, excitement .... First, we will draw a flowchart (I use the online process designer provided by the Beijing Rim network, it seems to be based on the original Activiti transformation), as to ho