IVAN SUTHERLAND SKETCHPAD PDF

The best solutions are always simple. Starting with his Ph. He introduced concepts such as 3-D computer modeling, visual simulations, computer aided design CAD , virtual reality, etc. He was immersed in learning since he was young. His father, a Ph.

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Software[ edit ] Sketchpad was the first program ever to utilize a complete graphical user interface. The clever way the program organized its geometric data pioneered the use of "master" "objects" and "occurrences" "instances" in computing and pointed forward to object oriented programming.

The main idea was to have master drawings which one could instantiate into many duplicates. If the user changed the master drawing, all the instances would change as well. Geometric constraints was another major invention in Sketchpad, letting the user easily constrain geometric properties in the drawing—for instance, the length of a line or the angle between two lines could be fixed.

Patrick J. The user drew on the screen with the recently invented light pen. Of the 36 bits available to store each display spot in the display file, 20 gave the coordinates of that spot for the display system and the remaining 16 gave the address of the n-component element responsible for adding that spot to display. In , most computers ran jobs in batch job mode only, using punched cards or magnetic tape reels submitted by professional programmers or engineering students.

A considerable amount of work was required to make the TX-2 operate in interactive mode with a large CRT screen. When Sutherland had finished with it, it had to be reconverted to run in batch mode again.

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Ivan Sutherland

Software[ edit ] Sketchpad was the first program ever to utilize a complete graphical user interface. The clever way the program organized its geometric data pioneered the use of "master" "objects" and "occurrences" "instances" in computing and pointed forward to object oriented programming. The main idea was to have master drawings which one could instantiate into many duplicates. If the user changed the master drawing, all the instances would change as well. Geometric constraints was another major invention in Sketchpad, letting the user easily constrain geometric properties in the drawing—for instance, the length of a line or the angle between two lines could be fixed.

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Informatica Ivan Edward Sutherland Hastings Nebraska , 16 mei is een Amerikaans computerwetenschapper en internetpionier. Hij wordt beschouwd als de grondlegger van computer-aided design CAD vanwege zijn uitvinding van Sketchpad. In werd hij "voor zijn pionierswerk en visionaire bijdragen aan computergraphics" onderscheiden met de A. Turing Award.

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