等值线

In this paper, on the basis of analyzing the characteristic of drawing plane contour map by MapGIS and Surfer, the method of utilizing MapGIS to draw plane contour map with Surfer is presented.

本文分析了MapGIS和Surfer软件在绘制平面等值线图方面各自的特点，提出了在Surfer软件绘制平面等值线图的基础上，实现MapGIS软件快速制图的方法。

For contour generation method has been improved and put forward a simple and practical method of contour generation.

针对已有等值线生成方法进行了改进，提出了一种简单实用的等值线生成方法。

For instance,(1) mountain terrain map: displaying the terrain and topography, is 3D emulation of earth's surface, is convenient for customer to look into the physiognomy, and check the data of input;(2) contradistinguish map of mine well: displaying opposite position relation of the earths surface and workface, user can analysis surface movement and distortion value at every positions of the workface with the map;(3) 3D prediction model: displaying workface, survey dots, survey lines, terrain, movement and distortion in a same map with 3D graphics, revealing the relations of every elements' position;(4) isoline graphics: displaying the value of height, subsidence, incline, movement and distortion with different colors, and giving the value of every color at the side of the map;(5) color cloud diagram: revealing every targets with colors, coloring every point in the map with the color corresponding the value of height, subsidence, incline, movement and distortion and form transitional color in color cloud diagram.

通过井上下对照图，用户可以分析工作面的各个位置的地表移动变形值；（3）三维的预计模型：采用3D形式同时显示工作面、测线、测点、地表地形、地表移动及变形，显示了各要素的空间相对关系；（4）等值线：对地表高程、下沉、倾斜、曲率变形、水平移动和水平变形等各个分量以等值线方式显示。

One important feature ofHamiltonian systems is that it has energy(its energic function is Hamiltonian func-tion),then,its solutions on 2-dimensional plane are some contour lines,the points onstable manifold emanating from hyperbolic equilibrium point have the same energyas that on unstable manifold,then,one can guess that they form a closed curve,i.e.homoclinic orbits under certain conditions,and the contour lines in the innerpart of homoclinic orbit are periodic orbits.

哈氏系统的一个重要特征是它有能量存在(以Hamiltonian函数作为它的能量)，那么在二维平面上，它的解表现为一些等值线，从双曲平衡点发出的稳定流形和不稳定流形上的点具有相同的能量，那么可以猜测，在一定条件下它们构成一条封闭的曲线，即同宿轨，而且其内部的等值线都是周期轨道。

Along extrusion direction, the isobar in groove becomes to perpendicular to mandrel axis from perpendicular to groove, while the isobar in annulus clearance becomes to perpendicular to mandrel axis from inclining to mandrel axis.

沿挤出方向，螺槽中熔体的压力等值线由垂直于螺槽逐渐变为垂直于轴向，环形间隙中熔体的压力等值线由倾斜于轴向逐渐变为垂直于轴向。

By using the reterence crop evapotranspiration isogram and soilquality distribution graph of GuangXi Autonomous region, the plotting of isogram of Ky is studied.

借助广西自治区参照作物需水量等值线图及土壤质地分布图，对Ky等值线图的绘制进行了研究。

OpenGL-based VC, cassini elliptic function of the contour generation, isogram involving interpolation.

基于VC+OPENGL，关于cassini椭圆函数的等值线生成，涉及等值线插值问题。

In this paper, the tracing and the calculation method of the point of intersection of isopleth and net line are developed.

本文讨论了等值线与网格线交点的追踪和计算方法。用此方法画出等值线图，处理方便，迅速，准确，占用内存少

Biodiversity is one of the front areas of current biological research. The mechanisms of the formation, spatial distribution pattern, conservation and utilization of biodiversity have been an important area of biological and environmental research. In this study, through analyses of data about plant diversity, animal diversity, geographic factors, climatic factors, and energy factors by use of GIS software, statistic software and ecology software, the mainland of China was divided into 241 small districts of 2° by 2°. The environmental factors in each district were analyzed and isopleth maps of environmental elements were depicted.

生物多样性是当今生物学研究的热点问题之一，生物多样性的形成机制和分布格局以及保护利用问题一直是生物学和环境科学所研究的重要内容，本文由此出发，以中国陆地为研究区域，通过植物多样性数据、动物多样性数据、地理因子、气候因子、能量因子等资料，利用MAPGIS、MAPINFO等GIS软件，SPSS、DPS等统计学软件以及CANOCO等生态学软件，将中国陆地划分为241个小区，分析了各区内的环境特点，统计了各区内生物多样性的数量，并绘出环境因子等值线图，中国陆地种子植物科、属、种，裸子植物种、蕨类植物种、兽类、鸟类、爬行类、两栖类种数的等值线分布图，对中国陆地植物、动物多样性现状、分布格局及与环境因子的关系进行了研究。

In the procedure of researching and developing project, brings forward the method of fast establishing new project based on template file; develops the module used for forecasting movement and deformation of multiple random-shape faces according to probability integral principle; according to the traits of forecasted data, puts forward a new algorithm of drawing isoclines in Maplnfo environment; designs the new algorithm of drawing section plane and the new calculation of area and volume of subsided section based on isoclines; at the same time, gives the rale of classifying mine surface damage under GIS environment on the basis of GIS uncertainty theory.

在课题的研制过程中，提出了以模板文件形式快速建立新项目的方法；运用概率积分法编写了任意形状多工作面开采沉陷地表移动与变形预计模块；根据预计数据的特点，基于MapInfo设计了等值线新的绘制算法；基于等值线设计了新的剖面图绘制算法和塌陷区面积、体积的计算方法；并结合GIS不确定性理论提出了GIS图形环境下矿区地表塌陷破坏等级划分准则。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。