1, this time we draw a smaller figure, convenient for us to explain the bulk copy method.
2, after a good copy of a rectangle, is not every time to hold down the "alt" key, and then move with the mouse, a copy? That's too much trouble. After we copy the first one, you can press the CTRL key and the "D" key to quickly copy the second
3, repeatedly hold down the "CTRL" Key Plus "D" key, you can quickly copy many, forming a row of small rectangles
4, and then use the "selection Tool", all
We have released a number of two-dimensional curve graphs. In fact, all two-dimensional graphs can be converted into three-dimensional images by adding one dimension value. the content of this section is to post a two-dimensional curve to a sphere to generate a three-dimensional curve.
The following formula is used to generate the value of the third dimension:
Y = SQRT (A * A-x * X-z * z)
Here is an example of a two-dimensional curve:Mathematical graphics
In May January, I installed Windows 7 Beta on my laptop (integrated with Intel 965 graphics card), but I found a very serious problem. In some real interfaces, A video card driver error occurs. Once an error occurs, aero will become invalid, but Windows 7 will immediately be able to recover the driver. This problem has actually been encountered in Vista, but with the official HP driver installed, there is no problem. Unfortunately, the official driver
Operation Steps:
AMD Graphics driver installation method (take U400 computer as an example):
Operating systems: Windows 8, 64-bit
1. There is a situation in Device Manager before the video driver is installed, as shown in figure:
The video card in Device Manager now displays a yellow exclamation mark, or two standard VGA devices in other devices
2. Download the appropriate computer graphics driver
seven Rainbow graphics card series
Seven Rainbow graphics card has two graphics card brands, respectively, seven Rainbow and Radium wind brand. Among them seven rainbow goods mainly is n card, and the Radium wind brand is mainly a card.
Seven rainbow graphics cards are mainly divided into nine sections, flame Ares X-
Operation Steps:
Applicable graphics: Nvidia dual graphics machine
Applicable system: Windows 7
The first video card hardware switch machine, please refer to the manual, to determine the card switch in the open position, and the correct installation of the video card driver, see the following Turielle switch dual graphics function:
Special NOTE: If the switch
https://msdn.microsoft.com/en-us/library/windows/hardware/ff538322 (v=vs.85). aspx
The video memory manager must calculate the total amount of graphics memory before it can report a accurate account of GR Aphics memory. The following list of items describes how the video memory manager calculates the graphics memory numbers:
The graphics memory manager must calc
1 Low-level coloring language TgsiThe OpenGL program uses the GLSL language to program the programmable graphics processor, the GLSL language (the following high-level coloring language refers to GLSL) is a high-level language of syntax similar to C, in the GLSL specification, GLSL language is first translated into the teaching of low-level class assembly language, and then translated into a hardware-specific instruction set. The OpenGL System Managem
Recently study Ros operating system, need to use Ubuntu as the basis, so installed a, used to do the development has been used in CentOS, with Ubuntu some not used to. Because the Ros simulator needs to use the 3D simulation, so installed ubuntu12.04 after a look at the video card to identify the No, the results are very sad to find that the graphics drive is unknown. It seems that Ubuntu support for my dual graph
This article is to Zhao Ming teacher "computer graphics" MOOC course part of the chapter small summary.Polygons are represented in two ways: vertex representation and dot matrix representation.X-Scan line algorithm: The algorithm steps are summarized as follows: Attention: Improved: To avoid intersection operations, a special set of data structures is introduced: Raster graphics i
This article is to Zhao Ming teacher "computer graphics" MOOC course part of the Chapter Small Summary.The straight line is the basis of composing the graph, its algorithm is often called many times, its good or bad directly affects the graph display effect and the speed. Here are some common algorithms for drawing straight lines.1. DDA algorithm:This algorithm is based on incremental thinking.For the oblique truncation of the line: Y=kx+b, consider e
sudo apt-get install libcairo2-dev//pkg-config--cflags--libs cairo//-i/usr/include/cairo-i/usr/include/glib-2.0- I/usr/lib/x86_64-linux-gnu/glib-2.0/include-i/usr/include/pixman-1-i/usr/include/freetype2-i/usr/include/ libpng12-lcairo#include Compilation under Ubuntu:g++ ' Pkg-config--cflags Cairo ' test_cairo.cpp ' Pkg-config--libs Cairo 'Note: The above symbol is not a single quote, but the key to the left of the ESC key on the keyboard and the!/1 key.Operation Result:C + + Cairo drawing
The application of mathematics in computer graphics
"Note" This article is Turk by Greg. "Mathematics for Computer Graphics, August 1997." and the online translation of the Chinese language is expanded.
"How much math is needed to learn computer graphics. "This is the most frequently asked question for beginners. The narrow sense of computer
video memory, also called frame cache, is used to store video cards Chipprocessed or about to be extracted. renders the data. Like computer memory, video memory is used to store The part of the graphic information to process. RoleVideo MemoryLike computer memory, video memory is the part used to store the graphics information to be processed. The picture we see on the display is made up of pixels, and each pixel points to 4 to 32 or even 64 bits of d
1, we first find the "computer" on the desktop and then right-click it pop-up menu Device Manager-Display adapter Click "Update Driver Software";
2, then our computer will automatically scan all updatable or problematic drivers, such as will display "automatic search updated driver software";
Okay, if you have a problem, it will be automatically updated, if you update the graphics driver in this way or no problem,
Always want to write a series of articles on their own blog, but people stupid hand lazy has no action, open the door, first write a chapter.
This series will detail the Scalable Vector Graphics (SVG), and today is the first chapter of SVG overview.
1th SVG Overview before you start reading this chapter, do you know the answers to the following questions: · What is the difference between vector graphics and
Graphics card is the key to determine the performance of a computer game hardware, the importance of even as much as the CPU. So, when choosing a video card, how do you look at the performance of the graphics card? Generally speaking, we can get a comprehensive understanding through the graphics card parameters. Below, small make up to talk about
The following several times on the quartz 2D blog are reproduced from: http://www.cocoachina.com/bbs/u.php? Action = topics uid = 38018
For the code implementation of this chapter's blog, you can refer to this blog: IOS uses cgcontextref to draw various images (text, circle, straight line, arc, rectangle, slice, elliptic, triangle, rounded rectangle, besell curve, and image)
Apple official website English Introduction: https://developer.apple.com/library/mac/documentation/GraphicsImaging/Concep
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