Patent ID: 8077164

Claim:
A drawing apparatus, comprising: a writer which writes image data to a first memory; a first resolution changer which changes a resolution of the image data stored in said first memory into a descending direction, and writes low-resolution image data obtained through the change to a second memory; a display which displays an image on the basis of the low-resolution image data stored in said second memory on a display surface; a designator which designates an arbitrary point within said display surface that displays the image on the basis of the low-resolution image data stored in the second memory; a drawer which performs drawing processing on the image data in said first memory according to a movement of a point designated by said designator on said display surface that displays the image on the basis of the low-resolution image data stored in the second memory; and an activator which repetitively activates said first resolution changer and repetitively activates said drawer, wherein a frequency at which said drawer is activated by said activator is higher than a frequency at which said first resolution changer is activated by said activator, and said activator alternatively activates said first resolution changer and said drawer.