| 摘要 |
The invention relates to a method of displaying arcs of polynomial curves on a viewing medium of a display facility linked to a computer, itself linked to a memory. According to this method, via a method known as the Wang method, the interpolation depth k of the curve, of which an arc is to be displayed, is calculated. Then the i+1 first extremities of segments of a polyline interpolating the curve are calculated. Next, the coordinates of the start point Ad of the portion of polyline corresponding to the arc to be displayed are calculated and recorded, Ad being situated between Ei and Ei+1. Finally, the coordinates of the extremities Ei+z to Ej+1 of the segments of the portion of polyline are calculated and recorded, and the coordinates of the arrival point Af of this portion of polyline are calculated and recorded, Af being situated between Ej and Ej+1. The candidate pixels for the display of the arc are sought and displayed successively, as soon as Ad, Ei+1, Ei+1, Ei+2,..., Ej-1 Ej, Ej, Aj are obtained. <IMAGE>
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