| 1. | In chapter two and chapter three , this paper discusses the tracking and building of isolines from two aspect , regular grid data and random discrete data 文中第二章和第三章从规则格网数据和任意离散点数据两个方面讨论了等值线的追踪与生成。 |
| 2. | The surface movement and distortion isolines of bench - shape slope were obtained with inner programming language - fish of flac ( superscript 3d ) , and strained characteristics and stability of the slope were analyzed 采用该程序内嵌fish语言生成了台阶状边坡地表的移动和变形等值线,并分析了边坡受力特点及其稳定性。 |
| 3. | The author proposed a new method called gliding adaptive smoothing in this thesis , which avoided the crossing of isolines efficiently and removed corners of isolines as well . these phenomenons usually occur unexpectedly in conventional processing 在等深线平滑问题中,提出了一种处理复杂形状曲线的自适应动态平滑方法,解决了常规曲线平滑方法在处理复杂的等深线时出现的若干问题。 |
| 4. | The system adopt griding - method to build isolines from the two data . the edge - information structure is designed firstly in program and isopoints are deposited in the edge - information linked lists , which is convenient to the tracking and building of isolines 对于这两种数据,本系统均采用网格序列法来生成等值线。在程序中,首次设计了边信息结构,采用边信息链表的方式来存储等值点,大大方便了等值线的追踪与生成。 |
| 5. | And the functional box - counting method has been used to analyze radar rain date to obtain the multiple dimensions of the rain field and the results show that the gradient among the isolines of fractal dimensions can be used to quantitatively represent the gradient of the radar echoes 结果表明:为了增加一个站网的测量能力,在对其进行加密或调整时应该尽量增大其分形维数。雷达同波分维数曲线间的梯度大小可以用于定量表示雷达回波的梯度大小。 |
| 6. | Through analysis of potential vorticity in isobaric surface field , in low - troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation , at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower - troposphere ; soon positive potential vorticity disturbance in high - troposphere downward , form one vertical disturbance column , now corresponding precipitation develop stage ; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600 - 700 hpa isobaric surface field ; when near ground arises negative potential vorticity disturbance , precipitation also weaken 通过对等压面的位涡分析,发现了在暴雨发生前,在对流层低层有正位涡扰动存在并向北形成倾斜的扰动柱,同时也反映了对流层低层正位涡扰动对强对流天气的触发作用;随后高层正位涡向下扰动,形成一个垂直扰动柱,这时对应降水的发展阶段:在暴雨的鼎盛阶段, 600 700hpa上空维持水平分布的等值线,在其上还有正的位涡扰动;当近地面出现负的位涡扰动时,降水随之也减弱。 |
| 7. | The paper mainly discusses the tracking , building , filling and labeling of isolines etc . from the point of view of algorithm . finally it describe the application of isoline analyzing system that developed by myself in anfas project , which is presided over by eu ( european commission ) 本文主要从算法的角度讨论了等值线的追踪与生成,以及等值线的填充,等值线的标注等内容。最后描述了本人开发的等值线分析系统在欧盟主持的anfas项目(水灾分析和决策支持的数据融合)中的应用。 |
| 8. | The fractal dimensions of elevation isolines in 6 studying sections from 3 different types of geomorphological zones , including high mountain , low - moderate mountain and catchment basin , are computed by using successive coarsening method . the results show that all the studied isolines are statistical fractals , and the fractal dimensions take on different characters for different geomorphological types and scale ranges 在0 . 1 - 10km标度范围内,等高线分维值总体表现为最新隆起区(中低山区) >强烈隆起区(高山区)沉积凹陷区(盆地区) ;在5 - 200km标度范围内则表现出强烈隆起区最新隆起区沉积凹陷区。 |
| 9. | In addition , for regular grid data it presents an effective algorithm for some particularity that there are four isopoints in one grid cell and for random discrete data points it lays emphasis on triangulation . this paper firstly put forward three principles : attribute principle of adjoining isolines , attribute principle of isoregions and inclusion principle of ioslines after studying the character of isolines . the bivalue - topology algorithm based on boundary tracking is given , which is founded on the three principle and is used to fill isoregions 另外,在这两部分中除了对边信息链表的形成过程以及基于边信息链表的等值线生成做了详细讨论外,还对规则格网数据的等值线追踪中,一个网格单元上含四个等值点的特殊情形给出了一个比较有效的算法,并在任意离散点数据部分对平面点集的三角剖分进行了着重讨论。 |
| 10. | Recurring to pre - process program of ansys and drawing functions of winsurf , pre - process program serving to finite elements auto - division of dam bodies and basements models and post - process program capable of plotting various isolines of stress and dams " distortion are worked out . collecting program of data files necessary for dams " dynamic stability analysis is also finished 借助于ansys前处理程序和winsurf绘图功能,用vb6 . 0语言编制了用于进行坝体?坝基模型有限元网格自动划分的前处理程序和能够绘制各种应力等值线或坝体变形图的后处理程序;编制了进行土石坝地震稳定性分析所需要的数据文件集成程序。 |