Bezier curve drawing device, Bezier curve drawing manner and program

摘要

A Bezier curve drawing device is configured as follows. A control point coordinate acquiring unit (10) acquires the coordinates of a plurality of control points of a Bezier curve. An inter-control point distance calculation unit (11) selects, using the minimum distance of a resolution for displaying the Bezier curve as a unit, either the horizontal distance or the vertical distance of adjacent control points of the Bezier curve, whichever is greater, adds up thus selected distances between adjacent control points, the added-up value being calculated as an indicator of the length of the Bezier curve. A division number setting unit (12) sets, based on the indicator of the length, the number of divisions to be used when the Bezier curve is divided and drawn. A Bezier division apex calculation unit (16) calculates, according to the number of divisions set by the division number setting unit (12), the coordinates of the end points of each interval obtained by dividing the Bezier curve.