基于Morphing的三维地质界面生成  

Three-Dimensional Geological Surface Creation Based on Morphing

作　　者：明镜[1] 颜玫[1] 

机构地区：[1]重庆市勘测院,重庆400020

出　　处：《地理与地理信息科学》2014年第1期37-40,共4页Geography and Geo-Information Science

基　　金：住房和城乡建设部2012年科学技术项目(2012-K8-10)

摘　　要：利用Morphing技术,参照四周地质界线的形态特征并以之为约束,插值生成一系列形态渐变的过渡曲线,采用轮廓线算法构建相邻曲线间的不规则三角网,并最终生成较为光滑的三维地质界面。将实际复合问题转化为4种基本问题进行求解,并详述了四边问题的实现细节。实验表明,该方法能够生成光滑三维地质界面,并较好地保留了已知地质界线的形态特征。Economic limitation leads to the scarcity of raw geological data as well as the roughness of resultant 3D geological models. To overcome it,a three-dimensional geological surface creation method based on Morphing is presented. The surrounding geological boundaries are utilized as constrains to interpolate a series of transitional curves. By merging the sub surfaces reconstructed from neighboring contours,the integrated smooth geological surface is constructed. Compound problems in practice are transformed into four basic problems. Implementation details of the four-edge-problem have also been discussed. As the ex- periment research demonstrates, the presented method is able to generate smooth 3D surface, which keeps features of surround- ing geological boundaries well.

关 键 词：MORPHING 三维地质界面生成 过渡曲线 模型光滑 三维地质建模 

分 类 号：P208[天文地球—地图制图学与地理信息工程]