Image display apparatus, image display method and storage medium

An image display method comprising:

• acquiring time information;
• determining display positions of a plurality of pointer images in a display area of a display comprising a plurality of pixels, based on the time information,
• wherein each of the plurality of pointer images displays one of a plurality of pointers,
• wherein the plurality of pointer images comprises a longest pointer image that is the longest of the plurality of pointers,
• wherein the plurality of pointer images is sequentially displayed at a plurality of positions based on the time information so that the plurality of pointer images appears to rotate on a rotation path about a rotation axis,
• wherein the rotation path of the longest pointer image defines a pointer movement area, and
• wherein a plurality of segment areas is defined by dividing the pointer movement area;
• identifying, in the display area of the display:
• one of the plurality of segment areas including the display positions of the plurality of pointer images as a first area;
• an outer area outside the pointer movement area as a second area;
• and
• all segment area or areas of the plurality of segment areas in the pointer movement area other than the first area as a third area;
• and
• controlling the display to display the plurality of pointer images and a background image,
• wherein controlling the display to display the plurality of pointer images and the background image comprises:
• for each of the plurality of pixels in the first area of the display area of the display, performing a high-load display operation comprising:
• performing a judging operation of judging whether the each of the plurality of pixels coincides with a display position of one of the plurality of pointer images or the background image;
• and
• displaying one of the background image and the one of the plurality of pointer images based on a result of the judging operation;
• for each of the plurality of pixels in the second area of the display area of the display, performing a low-load display operation for displaying the background image without performing the judging operation;
• and
• for each of the plurality of pixels in the third area of the display area of the display, performing the low-load display operation for displaying the background image without performing the judging operation.

A non-transitory computer-readable storage medium having stored thereon a program that is executable by a computer to actualize functions comprising:

• acquiring time information;
• determining display positions of a plurality of pointer images in a display area of a display comprising a plurality of pixels, based on the time information,
• wherein each of the plurality of pointer images displays one of a plurality of pointers,
• wherein the plurality of pointer images comprises a longest pointer image that is the longest of the plurality of pointers,
• wherein the plurality of pointer images is sequentially displayed at a plurality of positions based on the time information so that the plurality of pointer images appears to rotate on a rotation path about a rotation axis,
• wherein the rotation path of the longest pointer image defines a pointer movement area, and
• wherein a plurality of segment areas is defined by dividing the pointer movement area;
• identifying, in the display area of the display:
• one of the plurality of segment areas including the display positions of the plurality of pointer images as a first area;
• an outer area outside the pointer movement area as a second area;
• and
• all segment area or areas of the plurality of segment areas in the pointer movement area other than the first area as a third area;
• and
• controlling the display to display the plurality of pointer images and a background image,
• wherein controlling the display to display the plurality of pointer images and the background image comprises:
• for each of the plurality of pixels in the first area of the display area of the display, performing a high-load display operation comprising:
• performing a judging operation of judging whether the each of the plurality of pixels coincides with a display position of one of the plurality of pointer images or the background image;
• and
• displaying one of the background image and the one of the plurality of pointer images based on a result of the judging operation;
• for each of the plurality of pixels in the second area of the display area of the display, performing a low-load display operation for displaying the background image without performing the judging operation;
• and
• for each of the plurality of pixels in the third area of the display area of the display, performing the low-load display operation for displaying the background images without performing the judging operation.