CAJ | 학술논문

叶脉是叶片真实感中不可缺少的部分，本文提出了一种基于粒子系统的叶脉模拟方法。首先用户通过交互方式描绘叶片的轮廓及主叶脉和第二层叶脉，第三层以及更深层的叶脉由粒子系统生成；其次系统为每个叶片内的栅格化点寻找最接近自己的吸引点(交互指定的叶脉)，并生成有向引力图；在叶片轮廓内随机撒播粒子，粒子根据引力图指定的方向移动，通过不断的与其他粒子合并生成叶脉。该方法能较好的模拟植物深层次的叶脉。
협맥시협편진실감중불가결소적부분，본문제출료일충기우입자계통적협맥모의방법。수선용호통과교호방식묘회협편적륜곽급주협맥화제이층협맥，제삼층이급경심층적협맥유입자계통생성；기차계통위매개협편내적책격화점심조최접근자기적흡인점(교호지정적협맥)，병생성유향인력도；재협편륜곽내수궤살파입자，입자근거인력도지정적방향이동，통과불단적여기타입자합병생성협맥。해방법능교호적모의식물심층차적협맥。
Leaf veins is an integral part of the leaf realistic, this paper proposes a method based on particle system to simulate leaf veins. First, the user interactively sketches the outline of the leaves, main veins and the second layer veins, the third and deeper veins are generated by the particle system.second, the system ifnds the closest attraction node (assignation veins in interaction) for the grid nodes of the leaf, generates the gravity graph with direction and randomly scatters particles within the outline of the leaf, particles moved under the direction given by the gravity graph. By constantly merging with other particles veins were generated. The method is capable of simulating the deep veins of plants.