File:SketchpadDissertation-Fig9-4.tif
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this JPG preview of this TIF file: 800 × 315 pixels. Other resolutions: 320 × 126 pixels | 1,193 × 470 pixels.
Original file (1,193 × 470 pixels, file size: 550 KB, MIME type: image/tiff)
File information
Structured data
Captions
DescriptionSketchpadDissertation-Fig9-4.tif |
English: Construction of a linkage in Sketchpad (left) that generates a conic section. The time exposure at the right shows the resulting conic section traced by the moving point. This figure from Ivan Sutherland's famous Sketchpad dissertation was scanned, with permission from Sutherland, using an original paper copy of the dissertation. It has been previously published online in an electronic edition prepared by Alan Blackwell and Kerry Rodden, and freely available at http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-574.html The original high resolution scans used to create the electronic edition are now being placed on Wikimedia commons in accordance with Sutherland's wishes to make this work freely available. His original research was carried out under a U.S. National Science Foundation Fellowship. |
Date | |
Source | Electronic edition of Sutherland's Sketchpad dissertation, edited by Blackwell & Rodden |
Author | Scanned by Kerry Rodden from original photograph by Ivan Sutherland |
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:38, 26 January 2011 | 1,193 × 470 (550 KB) | AlanBlackwell (talk | contribs) | {{Information |Description={{en|1=15 second time exposure of an animation created by Sketchpad, showing the paths of four points that are constrained by a mechanical linkage. This figure from Ivan Sutherland's famous Sketchpad dissertation was scanned, wi |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on ca.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 1,193 px |
---|---|
Height | 470 px |
Bits per component | 8 |
Compression scheme | Uncompressed |
Pixel composition | Palette |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 6 |
Data arrangement | chunky format |
Hidden category: