DEV Community


Posted on

What Does the Term "Sketchpad" Mean?

Ivan Sutherland's PhD thesis in 1963 resulted in the creation of Sketchpad, a pioneering computer application. Sketch pad was a pioneer in the field of human-computer interaction (HCI). Sketchpad is regarded as the forerunner of today's computer-aided design (CAD) software. It is also recognised as an important step forward in the development of computer graphics. Sketchpad, for example, was used to develop cutting-edge object-oriented programming and the graphical user interface (GUI).

Sketchpad is explained by Techopedia.

Ivan Sutherland demonstrated with Sketchpad that computer graphics may be used for both technical and artistic applications in addition to being an innovative technique of HCI. It could handle restrictions; for example, drawing a constrained ellipse resulted in a circle. Sketchpad also has certain CAD functions, such as the ability to calculate loads on beams.

Sketchpad allowed users to draw on a computer screen with a light pen. It offered the "ring" list framework and used value inference to solve constraints. The drawings created with Sketchpad were saved in the computer's custom constructed ring structure. This ring structure included instant topological information processing, which eliminated the need for any searching.

Drawing was used as the computer's unique interaction medium in Sketchpad. The system had input, output, and computation routines that enabled it to decode data drawn directly on a computer screen. Drawing scientific, mechanical, mathematical, electrical, and animated designs was a breeze with Sketchpad.

Sketchpad extension was a one-of-a-kind technology that aided in the understanding of processes such as the concept of links, which could be conveyed visually. It was easier to design highly accurate and repetitive drawings with Sketchpad. It also included the ability to alter an image that had already been drawn.

Top comments (6)

alaxander7 profile image

The most common problem is mold growth inside the AC unit, which can be very dangerous for you and your family if left untreated for too long. If you are worried about this happening to your vehicle or any other type of problem with your car, call us today . We'll be happy to help! car air conditioning service dublin

linsayton profile image
linsay ton

With virtual course professional's online statistics courses, you may master the research of data sets, including data gathering, processing, and evaluation. You will study sampling distributions, computer vision, polling data, standard normal, market research, and experimental data in their courses on the fundamentals of statistics. If you're seeking the greatest online statistics courses, you should discover the top statisticians to help you understand the fundamentals. Take my statistics class has the top statisticians. They provide a program in statistics that covers data review and research. Take assistance from their online professionals to learn about statistical analysis in a cutthroat market and begin going right now.

tuylermax profile image

Avil the best Statistics Homework writing Services from the team of professional assignment experts. Our Online Statistics tutors are here to help you with your assignment writing services and we guarantee you best quality work within the provided deadline. Our Experts can even handle assignments of short deadlines and are highly enthusiastic and challenging. We keep our Experts updated with latest software and techniques in Statistics so that they can help you with your assignments more effectively. We are available 24x7 to help you with your academic assignments and clear all your queries regarding assignments. We ensure that all your assignment related queries are clarified within a short span of time.

buddyasgmthelp profile image
Ellen Litwack • Edited

As per my knowledge, Sketchpad was a revolutionary computer program written by Ivan Sutherland in 1963 during his Ph.D. thesis, for which he received the Turing Award in 1988 and the Kyoto Prize in 2012. It pioneered the way for human–computer interaction. Sketchpad is considered the ancestor of modern computer-aided drafting programs and a major breakthrough in the development of computer graphics in general. For example, the graphical user interface was derived from Sketchpad and modern object-oriented programming. Ivan Sutherland demonstrated with it that computer graphics could be used for both artistic and technical purposes in addition to showing a novel method of human-computer interaction.

goingfit profile image

The Tour de France is one of the most popular and important bike races in the world. It first began in 1903 when a French newspaper organized a cycling competition. The goal was to increase newspaper sales but it quickly became something bigger than that: a test for both physical and mental endurance. In its long history, the race has become well known for its hazardous mountain routes and dangerous descents. Riders have also been tested by grueling time trials, ever-changing weather conditions, and stiff competition from other riders — all this while usually riding over 2,000 miles in just three weeks! It's no surprise why so many cyclists consider winning the Tour de France their ultimate career achievement.

fybros profile image
Best wire company in india

Are you looking for premium and innovatively designed wall switches to liven up your wall?
So, Fybros brings you a wide range of premium switches for home at affordable prices.
Fybros' cutting-edge technology does not only make the switches look good but also feel good while tapping. One can easily buy these modular switches from home online and offline markets across India.

Image description