METHOD AND DEVICE FOR PREPARING FRAME DATA, FRAME DATA-PREPARATION PROGRAM, AND METHOD AND DEVICE FOR DRAWING

摘要

PROBLEM TO BE SOLVED: To provide a frame data-preparation method capable of preparing frame data at high speeds and a drawing method and device utilizing the frame data-preparation method.

SOLUTION: The frame data-preparation method comprises preparing frame data used in forming an image by moving a spatial optical modulator in which a plurality of drawing elements are arranged in a scanning direction making an angleθwith the arrangement direction of the drawing elements and inputting frame data to the spatial optical modulator in accordance with the movement. The frame data is prepared on the basis of image data in which pixel data is two-dimensionally arranged in a subsidiary scanning direction corresponding to the scanning direction and in a main scanning direction intersecting a subsidiary scanning direction, the image data is deformed to ensure that pixel data corresponding to the drawing elements (circle 1 to circle 6) are arranged in the main scanning direction and frame data is prepared on the basis of the deformed image data.

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