Graphic meter display
AssigneeYazaki Corporation
InventorKazuyoshi Ogasawara
Life of this patent
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Abstract
A trapezoid-shaped motion blur pointer image is composed of edges of normal pointer images. The normal pointer image and the motion blur pointer image are not overlapped with each other to prevent unevenness in brightness. The brightness of the motion blur pointer image is even in a whole area of the motion blur pointer image. The brightness of the motion blur pointer image has an inverted relationship with an area thereof, or is varied corresponding to a rotation speed of the pointer image.
Claims6
A graphic meter display for displaying a rotating pointer on a graphic display screen by updating a frame, from a last frame to a present frame, by drawing one of two images at a time on the graphic display screen every selected unit of time, comprising
- a motion blur pointer image, and
- a rotating pointer image, wherein
- when a pointer has a rotation speed and the rotation speed of the pointer to be displayed is more than a specific value, only the motion blur pointer image, composed of a trapezoid of which opposite sides are position coordinates of the pointer corresponding to the last frame and position coordinates of the pointer corresponding to the present frame, is drawn on the graphic display screen, and the graphic display screen displays the drawn motion blur pointer image as an image in the present frame, and
- when the pointer has a rotation speed and the rotation speed of the pointer to be displayed is less than or equal to the specific value, only the rotating pointer image is drawn on the graphic display screen, and the graphic display screen displays the drawn rotating pointer as an image in the present frame.
Dependencies are inferred from the claim text.