Difference between revisions of "User:Labrat/Sandbox"
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[[File:Rotation-tilt-overlay.jpg|Axis Tilt & rotation overlay. Courtesy blueprintbowling.com]] | [[File:Rotation-tilt-overlay.jpg|Axis Tilt & rotation overlay. Courtesy blueprintbowling.com]] | ||
| − | The following graphic compares the Blueprint overlay with the existing wiki overlay is | + | The following graphic compares the Blueprint overlay (left) with the existing wiki overlay. The overlay on the right is a perspective view - the overlay lines for which are approximately correct for a viewer two feet from the ball. For video work from the back of the approach at the height of the centre of the ball, the Blueprint version is correct with a perspective error of less than 0.5%. |
[[File:Axis-rotation-axis-tilt-overlays.jpg|Axis & rotation overlays]] | [[File:Axis-rotation-axis-tilt-overlays.jpg|Axis & rotation overlays]] | ||
Revision as of 02:46, 2 February 2015
The following axis tilt & rotation overlay is provided by permission of Bill Sempsrott from blueprintbowling.com. It is mathematically correct and is based on a point of view level with the centre of the ball and an infinite distance away, as explained in this article: http://blueprintbowling.com/blog/Posts/axis-rotation-and-axis-tilt-explained.aspx
The following graphic compares the Blueprint overlay (left) with the existing wiki overlay. The overlay on the right is a perspective view - the overlay lines for which are approximately correct for a viewer two feet from the ball. For video work from the back of the approach at the height of the centre of the ball, the Blueprint version is correct with a perspective error of less than 0.5%.
