一種新的平面矢量場可視化方法

矢量場可視化是科學(xué)計(jì)算可視化的重要組成部分。提出了一種新的平面矢量場可視化
方法，該方法利用局部區(qū)域內(nèi)流線的近似平行性，將種子點(diǎn)的影響范圍擴(kuò)大，使一條流線能夠覆蓋與其平行的相鄰的幾條流線上的點(diǎn)，同時(shí)對流線之間進(jìn)行調(diào)和，使流線間比較平滑。由于該方法一條流線上覆蓋了更多的點(diǎn)，提高了計(jì)算速度，可達(dá)到交互可視化的要求。并將幾種方法的結(jié)果圖象進(jìn)行了比較。
關(guān)鍵字：科學(xué)計(jì)算可視化；矢量場可視化；線積分卷積；積分和畫
Abstract：Vector field visualization is an important part of visualization in scientific computing. A new planar vector field visualization method was discussed, it utilized the characteristic that the streamlines are approximately parallel in local vector field region, extended the range of seed point, thus streamline can cover more adjacent points, and averaged different streamlines so image was smoother . The method can cover more points in one streamline, it is fast enough to visualize vector field interactively. At last, different result images were compared.
Key words：visualization in scientific computing; vector field visualization; line integral
convolution; integral and draw