Geometry of the circle and how it applies to shot shaping . - LynnBlakeGolf Forums

Geometry of the circle and how it applies to shot shaping .

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Old 12-14-2012, 03:07 PM
O.B.Left O.B.Left is offline
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Geometry of the circle and how it applies to shot shaping .
Guys and Gals

Id like to discuss ball response , shot shaping from a geometric perspective. Ive posted this in the Lab to encourage free expression and extrapolation beyond what Homer alluded to in his book. But lets stick to Homerian based , backed up with quotes extrapolations.

IMO Homer wasnt the first to attack ball reaction in golf through the looking glass provided by geometry . Others of course have addressed the subject from other angles ; a physics perspective and/or with radar data etc. Each with their own benefits perhaps.

In light of these various interesting and worthy investigations and the potential for discord, if I may, I'd like to propose a singular rule for our own enjoyment and sanity.

RULE #1. Lets leave discord of any nature and those other forms of investigation aside and stick to the geometry of the circle alone. Please.

Lets:

1. Pull Homers references to ball response together , verbatim. Its all over the place in the book. What do you guys have saved to your computers?

2. Re Post Yoda's thoughts on the matter. There is one post in particular that we need to dissect carefully. There is clarification needed, perhaps he will help out.

3. Discuss how we use this geometry to shape our shots?

4. Try to doodle some drawings that would better explain the geometry Homer was referring to . Geometry being best understood in drawings rather than words after all. A major factor in why the book is so dang obtuse IMO. Imagine high school geometry class in words only! Over and above ball response if we go a little further with the drawings we would be knocking on the door to a visual explanation to one of Homers more perplexing (but keerect) statements: "There is no angle of approach to the angle of approach".


I can take us fairly deep into this stuff (I think tbd) but I need your help with the references and further insight. I thank you in advance.

Last edited by O.B.Left : 12-15-2012 at 10:54 AM.
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Old 12-14-2012, 03:21 PM
O.B.Left O.B.Left is offline
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First thing.

The actual , in the field , clubhead orbit , given the moving centre and lever contraction and extension does not describe a perfect circle . But the geometry of the circle still holds as a model for investigation. If this is still problematic then consider this : nearing the impact area (where the rubber hits the road) the orbit is at its most circular nature given lever extension. Still not perfectly circular but darn close.

Also the geometry of the ellipse is born of the geometry of the circle.

I know that some have used this against homer in the past but i wont mention that as it would be a violation of rule #1 and Id have to ask myself to delete or edit my own post.

Last edited by O.B.Left : 12-14-2012 at 03:28 PM.
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Old 12-14-2012, 03:33 PM
O.B.Left O.B.Left is offline
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You can not draw a perfect circle without a steady constant centre. And a fixed radius.
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Old 12-14-2012, 03:42 PM
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THE GOLFING MACHINE

PAGE VII

PREFACE: INTRODUCTION TO THE BOOK

"......................The Golf Stroke involves mainly, two basic elements – the Geometry of the Circle and the Physics of Rotation. "
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Old 12-14-2012, 07:53 PM
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Daryl Daryl is offline
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2-D-0 DIRECTIONAL FACTORS
Quote:
Another need for a “perfect circle” motion is for directional control. If the Clubface is maintaining a constant relationship to the radius of its rotation – whether the face is open, closed or square – then the direction imparted at any one point of the arc will always be the same for “centered” (Sweet Spot) Impact (2-F).
When the Target Line is introduced, the intersection is called Low Point.

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Last edited by Daryl : 12-14-2012 at 08:31 PM.
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Old 12-15-2012, 12:22 AM
O.B.Left O.B.Left is offline
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Awesome thanks for playing along Daryl

What do you say we call the target line in your drawing the LOW POINT PLANE LINE . It is one and the same as the target line in your drawing given that geometry/ball placement at low point, but the target line and the low plane line diverge as the ball moves back , up and in along the arc of approach. Eh?

We're getting ahead of ourselves maybe but what do you think D?

Last edited by O.B.Left : 12-15-2012 at 12:34 AM.
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Old 12-16-2012, 04:21 PM
HungryBear HungryBear is offline
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Time to return to post #1

Expand into your ideas beyond the great start on drawings.



Originally Posted by O.B.Left View Post
Guys and Gals

Id like to discuss ball response , shot shaping from a geometric perspective. In light of these various interesting and worthy investigations and the potential for discord, if I may, I'd like to propose a singular rule for our own enjoyment and sanity.

Lets:

1. Pull Homers references to ball response together , verbatim. Its all over the place in the book. What do you guys have saved to your computers?

2. Re Post Yoda's thoughts on the matter. There is one post in particular that we need to dissect carefully. There is clarification needed, perhaps he will help out.

Can U start this answer with the Re. post you mention?

3. Discuss how we use this geometry to shape our shots?

4. Over and above ball response if we go a little further with the drawings we would be knocking on the door to a visual explanation to one of Homers more perplexing (but keerect) statements: "There is no angle of approach to the angle of approach".

The geometry is a macro scale representation of incramental geometry within the impact interval. There is no streight lines on the circle nor fixed angular relationships. I have not studied them but I assume the machines that "calculate" ball flight do exactly that- Take the - take the balls reaction and calculate the geometry and other physical factors necessary to produce that response- Kinda, "Once the answer is given the solution is trivial" Computers and software make it look easy and that is the only "new" in the NEW machines.

I can take us fairly deep into this stuff (I think tbd) but I need your help with the references and further insight. I thank you in advance.
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