Golf simulation system

1. An apparatus having a configurable upper surface with a changeable contour, the apparatus comprising:

a covering forming the upper surface, the covering being flexible such that the covering is movable between a base condition in which the upper surface has a substantially planar configuration and a contoured condition in which the upper surface has a contoured configuration; and

a covering support assembly configured to support the covering in the base condition and the contoured condition, the support assembly comprising:

a plurality of movable positioning elements having the covering resting thereon, the plurality of positioning elements being positioned in an array below the entire covering, the positioning elements each having an upper end contacting a portion of the covering, the positioning elements being movable to adjust a vertical position of the upper end of the positioning element contacting the covering to create contours anywhere on the upper surface; and

a movement actuator configured to move at least one of the positioning elements, one of the movement actuators acting on at least one of the positioning elements such that the positioning elements are movable independently of other positioning elements;

wherein each positioning element comprises a pin having a top end and a head mounted on the top end of the pin and defining at least a portion of the upper end of the positioning element, wherein the head of one positioning element is unconnected to the heads of adjacent positioning elements; and

each head has a maximum width and is spaced from adjacent heads by a closest spacing which is less than the maximum width of the head.

2. The apparatus of claim 1 wherein the upper end of a said positioning element is attached to the covering.

3. The apparatus of claim 1 wherein the upper end of a said positioning element is unattached to the covering.

4. The apparatus of claim 1 wherein the covering is elastomerically stretchable.

5. The apparatus of claim 1 wherein the head has a top surface with a convex shape.

6. The apparatus of claim 1 wherein the maximum width of the head is greater than the maximum width of the pin.

7. The apparatus of claim 1 wherein the positioning elements are elongated with a longitudinal axis, the longitudinal axis being substantially vertically oriented.

8. The apparatus of claim 1 wherein the upper ends of the positioning elements are moveable with respect to a reference plane, the reference plane being defined by upper ends of the positioning elements being in a neutral position, the positioning elements having a plurality of raised positions located vertically higher than the neutral position.

9. The apparatus of claim 1 wherein the covering support assembly includes a guide configured to guide the positioning elements as the elements move.

10. A golf simulation system comprising:

a screen with a projection surface and configured to project a golf hole and a portion of a golf green associated with the golf hole being simulated by the golf simulation system;

a ball path analysis device configured to predict a path of a ball struck by a club of a user and to project the path on the projection screen; and

a green simulation apparatus located in front of the screen and having a configurable upper surface with a changeable contour configured to simulate a portion of a golf green associated with the golf hole being simulated and projected on the screen, the apparatus comprising:

a covering forming the upper surface, the covering being flexible such that the covering is movable between a base condition in which the upper surface has a substantially planar configuration and a contoured condition in which the upper surface has a contoured configuration; and

a covering support assembly configured to support the covering in the base condition and the contoured condition, the support assembly comprising:

a plurality of movable positioning elements having the covering resting thereon, the plurality of positioning elements being positioned in an array below the covering, the positioning elements each having an upper end contacting a portion of the covering, the positioning elements being movable to adjust a vertical position of the upper end of the positioning element contacting the covering; and

a movement actuator configured to move at least one of the positioning elements, one of the movement actuators acting on one of the positioning elements such that each of the positioning elements is movable independently of other positioning elements.

11. The system of claim 10 wherein a said positioning element comprises:

a pin having a top end and a bottom end; and

a head mounted on the pin, the head being located on the top end of the pin and defining at least a portion of the upper end of the positioning element;

wherein each head has a maximum width and is spaced from adjacent heads by a closest spacing which is less than the maximum width of the head.

12. The system of claim 11 wherein the head of one positioning element is unconnected to the heads of adjacent positioning elements.

13. The system of claim 10 wherein the upper ends of the positioning elements are moveable with respect to a reference plane, the reference plane being defined by upper ends of the positioning elements being in a neutral position, the positioning elements having a plurality of raised positions located vertically higher than the neutral position.