Notes On Computer Graphics In Pdf

You only need to know about basic computer hardware. This means that you are going to see your work on a computer screen, and television, six pack abs diet pdf or a big screen projector. Computer Graphics is a complex and diversified field.

Intermediate positions within a cell can also be interpolated. Prev Post Delhi University B. Hardware is any part of the computer that you can touch. Remember me on this computer.

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It controls the operation of all parts of computer. Not Now Yes, I'm Interested.

The processor breaks from its normal execution and executes some special interrupt-handling routine or task. If the slope is negative then, use reflection transformation to transform the line segment with negative slope to line segment with positive slope. Monte Carlo methods are a widely used class of computational algorithm for simulating the behaviour of various physical and mathematical systems. Let us not go into these issues, as they are not part of our current discussion. It is a simple application of the basic principle of physics called persistence of vision.

CS CG Notes Computer Graphics Lecture Notes CSE 5th SEM Anna University

In a simple black-and-white system, each screen point is Dr. There are many applications in the market and most of them are expensive. Thus, the question arises what software do I need to get my job done. Each pixel on the screen can be made to glow with a different brightness. This was a flipbook several papers of the same size with an individual drawing on each paper so the viewer could flip through them.

Introduction to Computer Graphics Course Notes Main Page

Modified versions of the light pen may also be used to draw lines, read barcodes, or do transformation operations on objects on the screen or on a tablet. Every part of your computer is the result of years of research and development.

We can obtain hard-copy output for our images in several formats. The inter frame system allows the user to study the interior of the vehicle and its behaviour. The increasing complexity of the underlying mathematical models has also highlighted the critical role to be played by scientific visualisation.

Introduction to Computer Graphics Course Notes Main PageBasic Computer Hardware Notes in PDF - Testbook Blog

This field is for validation purposes and should be left unchanged. Or we may say that a graphics tablet is a computer input device that allows one to hand-draw images and graphics, similar to the way one draws images with a pencil on paper. There are some software like canvas that improves the presentation created through PowerPoint or keynote software.

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Then, one can imagine the amount of work in creating even the shortest of animated films. The electro-mechanical nature of the controllers allowed digital technologies to be easily incorporated as they were developed. In this method, the artist creates a succession of cartoon frames, which are then combined into a film. Flat- panel displays commonly use Nematic threadlike liquid- crystal compounds that tend to keep the long axes of the rod-shaped molecules aligned. Because the light emitted by the phosphor fades very rapidly, some method is needed for maintaining the screen picture.

Interactive Computer Graphics which is interactively used by users e. Such techniques are also referred as motion specific techniques because we can specify the motion of any graphic object in the scene. Assume we proceed in this fashion up to the kth step. The amplitudes of a given image will almost always be either real numbers or integer numbers.

We may say that Presentation graphics is more than just power point presentation because it includes any type of slide presentation, bar chart, pie chart, graphs and multimedia presentation. Magnetic lens focusing produces the smallest spot size on the screen and is used in special-purpose devices. These include normal, lognormal, uniform and the triangular distributions. This means that their shapes and positions are described in mathematical terms.

Computer graphics is concerned with producing images and animations or sequences of images using a computer. As the volume of data accumulated from computations or from recorded measurements increases, it becomes more important that we be able to make sense out of such data quickly. When the electrons in the beam collide with the phosphor coating, they are stopped and their kinetic energy is absorbed by the phosphor.

The disadvantage is that the processor has to wait in an idle state until some event occurs. Notify me of new posts by email. Figure sidewise shows the intensity distribution of a spot on the screen. There are two types of plotter. An alternative to polling is the interrupt feature.

Computer Graphics Note pdf download - handwrittenLectureNotes for free

Basic Computer Hardware Notes in PDF

Numerical and statistical methods are useful for solving this problem. Hard Copy Devices The printer is an important accessory of any computing system. While this approach is mathematically sound, it involves floating-point computation multiplication and addition in every step that uses the line equation since m and b are generally real numbers. The main program takes events off the head of the queue and invokes the appropriate process.

The meaning of the term Graphics is Graphical Tricks. If we consider a complex picture, then complex database for pixels are considered, hence, complex algorithm are required to access them. Flood-Fill is similar to Boundary-Fill. It forms images from tiny dots, called pixels that are arranged in a rectangular form. Other combinations of beam intensities produce a small light spot for each pixel position, since our eyes tend to merge the three colors into one composite.

Make use of simple arithmetic computations, preferably integer arithmetic. This concept of scientific visualisation fits well with modelling and simulation.

Computer Graphics Note pdf download - handwrittenLectureNotes for free

By scan-converting these calculated x, y values, we represent the line as a sequence on pixels. We can only make a few introductory remarks about image analysis here, as to go into details would be beyond the scope of this unit. Then check for the case and perform the algorithm accordingly. This includes the hardware and software systems used to make these images. It may provide facilities to group these into any object.

The electrically charged ink stream is deflected by an electric field to produce dot-matrix patterns. This discovery led to some more interesting low tech animation devices like the zoetrope, wheel of life, etc.

More sophisticated systems can set intermediate intensity levels for the electron beams, allowing several million different colors to be generated. This is an effective technique for avoiding flicker, providing that adjacent scan lines contain similar display information. The erasing and redrawing process can take several seconds for a complex picture. Even though the rasterization tries to generate a completely straight line, yet in few cases we may not get equal brightness.