Method and apparatus for scroll displaying an image on screen
First Claim
1. An apparatus scroll displaying an image on a screen during a scrolling operation, said apparatus comprising:
- a memory section storing whole image information;
a display displaying a partial image extracted from said whole image information of said memory section, said display comprising a display screen;
a first region setting section setting a whole image region having first display coordinates (X, Y) for said whole image information in said memory section said whole image region moving as the coordinates (X, Y) are moved;
a second region setting section setting a screen region having second display coordinates (x, y) for the display screen of said display;
a conversion magnification setting section setting coordinates conversion magnifications (K1, K2) for converting the second display coordinates (x, y) in said screen region into the first coordinates (X, Y) in said whole image region;
a pointer operating section moving a pointer on the display screen of said display during the scrolling operation;
a pointer movement detecting section detecting coordinates values (x, y) of said second display coordinates of a present pointer position during the movement on the screen by said pointer operating section;
a coordinates converting section coupled to the conversion magnification setting section and to the pointer operating section and converting the pointer coordinates values (x, y) after completion of movement detected by said pointer movement detecting section into coordinates values (X, Y) of the first display coordinates of the whole image region by using said coordinates conversion magnifications (K1, K2) causing the coordinates (X, Y) of said whole image region to move as the coordinates (x, y) of the pointer move;
a third region setting section coupled to the coordinates converting section and setting a display region corresponding to said screen region into said whole image region by using the conversion coordinates values (X, Y) obtained by said coordinates converting section as a start point; and
a display control section coupled to the display and to the second region setting section and controlling the scrolling operation by extracting the image of said display region set by said third region setting section from said whole image region and for allowing the image to be scroll displayed by said display.
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Abstract
At the time of a scrolling operation, the pointer coordinates (x, y) when moving the pointer on the display are detected and converted into the coordinates values (X, Y) of a whole image region on a memory by using coordinates conversion magnifications (K1, K2). An image in the display region corresponding to the screen region is extracted from the memory while using the conversion coordinates values (X, Y) as a start point (origin) and is displayed on a display. The extracting display by the coordinates conversion is repeated at a sampling period of the pointer which is moved. The extracted image is scroll displayed in association with the pointer movement.
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Citations
15 Claims
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1. An apparatus scroll displaying an image on a screen during a scrolling operation, said apparatus comprising:
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a memory section storing whole image information; a display displaying a partial image extracted from said whole image information of said memory section, said display comprising a display screen; a first region setting section setting a whole image region having first display coordinates (X, Y) for said whole image information in said memory section said whole image region moving as the coordinates (X, Y) are moved; a second region setting section setting a screen region having second display coordinates (x, y) for the display screen of said display; a conversion magnification setting section setting coordinates conversion magnifications (K1, K2) for converting the second display coordinates (x, y) in said screen region into the first coordinates (X, Y) in said whole image region; a pointer operating section moving a pointer on the display screen of said display during the scrolling operation; a pointer movement detecting section detecting coordinates values (x, y) of said second display coordinates of a present pointer position during the movement on the screen by said pointer operating section; a coordinates converting section coupled to the conversion magnification setting section and to the pointer operating section and converting the pointer coordinates values (x, y) after completion of movement detected by said pointer movement detecting section into coordinates values (X, Y) of the first display coordinates of the whole image region by using said coordinates conversion magnifications (K1, K2) causing the coordinates (X, Y) of said whole image region to move as the coordinates (x, y) of the pointer move; a third region setting section coupled to the coordinates converting section and setting a display region corresponding to said screen region into said whole image region by using the conversion coordinates values (X, Y) obtained by said coordinates converting section as a start point; and a display control section coupled to the display and to the second region setting section and controlling the scrolling operation by extracting the image of said display region set by said third region setting section from said whole image region and for allowing the image to be scroll displayed by said display. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of scroll displaying an image on a screen during a scrolling operation, said method comprising:
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a first region setting step of setting a whole image region having first display coordinates (X, Y) for whole image information stored in a memory section said whole image region moving as the coordinates (X, Y) are moved; a second region setting step of setting a screen region having second display coordinates (x, y) for a display screen of a display; a conversion magnification setting step of setting coordinates conversion magnifications (K1, K2) for converting the second display coordinates (x, y) of said screen region into the first display coordinates (X, Y) of the whole image region; a pointer operating step of moving a pointer on the screen of said display at the time of a scrolling operation; a pointer movement detecting step of detecting the coordinates values (x, y) of said second display coordinates of a present pointer the movement of the pointer on the screen by said pointer operating step; a coordinates converting step of converting the pointer coordinates values (x, y) after the movement detected by said pointer movement detecting step into the coordinates values (X, Y) of the whole image region by using said coordinates conversion magnifications (K1, K2) causing the coordinates (X, Y) of said whole image region to move as the coordinates (x, y) of the pointer move; a third region setting step of setting a display region corresponding to the screen region into said whole image region while using the conversion coordinates values (X, Y) derived in said coordinates converting step as a start point; and a display step of controlling the scrolling operation by extracting the image in the display region set by said third region setting step from the whole image region and allowing the extracted image to be scroll displayed by said display. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A display system, comprising:
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a memory storing an image and having a display region projected onto the image, the display region including contents of the image within the display region, and the display region having memory coordinates in the image and the display region moving as the coordinates are changed; a monitor display having a screen region displaying the contents of the display region and having a pointer with a pointer position in the screen region corresponding to the memory coordinates of the display region in the image; and a computer coupled to said memory and said monitor display and controlling the memory coordinates responsive to movement of the pointer position causing the memory coordinates to move as the pointer moves in the screen region.
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Specification