{"id":121,"date":"2009-09-04T23:40:59","date_gmt":"2009-09-05T06:40:59","guid":{"rendered":"https:\/\/mathpirate.net\/log\/?p=121"},"modified":"2009-09-04T23:40:59","modified_gmt":"2009-09-05T06:40:59","slug":"dratapillar","status":"publish","type":"post","link":"https:\/\/mathpirate.net\/log\/2009\/09\/04\/dratapillar\/","title":{"rendered":"Dratapillar!"},"content":{"rendered":"<p><a href=\"https:\/\/mathpirate.net\/log\/wp-content\/uploads\/2009\/09\/Dratapillar.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-122\" title=\"Dratapillar\" src=\"https:\/\/mathpirate.net\/log\/wp-content\/uploads\/2009\/09\/Dratapillar-300x251.jpg\" alt=\"Dratapillar\" width=\"300\" height=\"251\" srcset=\"https:\/\/mathpirate.net\/log\/wp-content\/uploads\/2009\/09\/Dratapillar-300x251.jpg 300w, https:\/\/mathpirate.net\/log\/wp-content\/uploads\/2009\/09\/Dratapillar.jpg 334w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>This centerpoint issue is more trouble than I originally anticipated.\u00c2\u00a0 It&#8217;s deeper than just an integer problem.\u00c2\u00a0 The ball contour is not a consistent size or shape, which is really throwing off the calculations.\u00c2\u00a0 Even with a five point weighted average, the projection error is huge, not to mention the fact that now any jitter will cause the next five frames to be worthless.\u00c2\u00a0<\/p>\n<p>I think I&#8217;m going to have to try to turn the tables and use the error to my advantage.\u00c2\u00a0 I&#8217;m going to continue with the projection and implement the boundary reflections and paddle plane intersection calculations.\u00c2\u00a0 (So far, I&#8217;ve only done the boundary plane intersection, and I&#8217;m projecting forward and backward, which I don&#8217;t need to do.)\u00c2\u00a0 Once I get that, I&#8217;ll be able to keep a history of the paddle plane intersection points.\u00c2\u00a0 I should be able to average those and throw out any outliers, and use that to determine where the real point will be.<\/p>\n<p>Damn!\u00c2\u00a0 My statistics textbook is at work!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This centerpoint issue is more trouble than I originally anticipated.\u00c2\u00a0 It&#8217;s deeper than just an integer problem.\u00c2\u00a0 The ball contour is not a consistent size or shape, which is really throwing off the calculations.\u00c2\u00a0 Even with a five point weighted average, the projection error is huge, not to mention the fact that now any jitter [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[24],"tags":[15,14,23],"_links":{"self":[{"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/posts\/121"}],"collection":[{"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/comments?post=121"}],"version-history":[{"count":1,"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/posts\/121\/revisions"}],"predecessor-version":[{"id":123,"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/posts\/121\/revisions\/123"}],"wp:attachment":[{"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/media?parent=121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/categories?post=121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathpirate.net\/log\/wp-json\/wp\/v2\/tags?post=121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}