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Line Drawing System-1
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<h2 id="features">Features</h2> <p>It was controlled by a variety of host computers. Straight lines were smoothly rendered in real-time animation. General principles of operation were similar to the systems used today: 4x4 <a href="/facts/Transformation_matrix/qAwPXmpR">transformation matrices</a>, 1x4 <a href="/facts/Vertex_(computer_graphics)/lj0ltT3g">vertices</a>. Possible uses included flight simulation (in the product brochure there are screenshots of landing on a carrier), scientific imaging and <a href="/facts/Geographic_information_system/PoP1kVoa">GIS</a> systems. </p> <h2 id="history">History</h2> <p>The first LDS-1 was shipped to the customer (<a href="/facts/BBN_Technologies/9kA7axL3">BBN</a>) in August 1969.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> Only a few of these systems were ever built. One was used by the <i><a href="/facts/Los_Angeles_Times/jFHbcmb9">Los Angeles Times</a></i> as their first typesetting/layout computer. One went to <a href="/facts/NASA/TIMCV0yV">NASA</a> Ames Research Center for Human Factors Research. Another was bought by the <a href="/facts/Port_Authority_of_New_York/KjQdrqjD">Port Authority of New York</a> to develop a tugboat pilot trainer for navigation in the harbor. The MIT Dynamic Modeling had one, and there was a program for viewing an ongoing game of <i><a href="/facts/Maze_War/xrAocCDg">Maze War</a></i>. <a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a><a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Case_Western_Reserve_University/S0xlUbTM">Case Western Reserve University § Computing</a>, where Project Logos had an LDS-1.</li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://bitsavers.org/pdf/evansAndSutherland/lds-1/">LDS-1 documentation</a></li></ul> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Vector_General/jKaA6syp">Vector General</a></li> <li><a href="/facts/SuperPaint/C6dzF7Uu">SuperPaint</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Evans & Sutherland Computer Corp. and DEC (January 1970). "LDS-1/PDP-10 Display System" (PDF). Evans & Sutherland. <a href="http://bitsavers.org/pdf/evansAndSutherland/lds-1/LDS-1_Brochure.pdf" target="_blank">http://bitsavers.org/pdf/evansAndSutherland/lds-1/LDS-1_Brochure.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Evans, David C (March 1971). "Graphical Man-Machine Communications (semi-annual technical report for 1 July 1970 to 31 December 1971" (PDF). Defense Advanced Research Projects Agency. Archived from the original (PDF) on March 4, 2016. <a href="https://web.archive.org/web/20160304051542/http://www.dtic.mil/dtic/tr/fulltext/u2/725102.pdf" target="_blank">https://web.archive.org/web/20160304051542/http://www.dtic.mil/dtic/tr/fulltext/u2/725102.pdf</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Line Drawing System Model 1 System Reference Manual (PDF). Evans & Sutherland Computer Corp. January 1, 1970. p. 4. <a href="http://www.bitsavers.org/pdf/evansAndSutherland/lds-1/LDS-1_System_Reference_Man_Jan70.pdf" target="_blank">http://www.bitsavers.org/pdf/evansAndSutherland/lds-1/LDS-1_System_Reference_Man_Jan70.pdf</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"DigiBarn Events: David Lebling describes Maze at MIT (1974+)". www.digibarn.com. Retrieved 2021-08-04. <a href="https://www.digibarn.com/history/04-VCF7-MazeWar/stories/lebling.html" target="_blank">https://www.digibarn.com/history/04-VCF7-MazeWar/stories/lebling.html</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Moss, Richard (2015-05-21). "The first first-person shooter". Polygon. Retrieved 2021-08-04. <a href="https://www.polygon.com/features/2015/5/21/8627231/the-first-first-person-shooter" target="_blank">https://www.polygon.com/features/2015/5/21/8627231/the-first-first-person-shooter</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> </ol>