查询词典 regular polygon

This method mainly studies the change detection based on the judge of temple and threshold value of the land use class. The land use patch is expressed by vector polygon along with raster region. First the spectrum feature databank with histogram, texture and shape features of the patch is formed. Then, the patches are classified and their change types were judged.

其基本思路是在矢栅位置配准的基础上，以矢量多边形和栅格面阵共同表示的土地利用图斑为基本单位，建立土地类别解译标识，在此基础上对所有图斑进行基于图斑的分类、利用检测模板和阈值来判断图斑类型是否发生变化，并对变化图斑进行表示和更新。

GIS ; vector polygon ; gridding ; areal interpolation

地理信息系统；矢量多边形；网格化；面积内插

Research on fast algorithm of point inclusion query. From the point of view of computational geometry, winding number is extended from close curve to line segment, polygon, 2-dimensional object, plane subdivision, polyhedra, 3-dimensional object and 3D subdivision.

7，研究点查询的快速算法，从计算几何的角度将环绕系数扩展到一个除闭合曲线外的线段，多边形，二维对象，平面分割，多面体，三维对象，三维空间分割等，进而构造出各种情况下的点查询代数算法。

RAW Height Map#define STEP_SIZE 16 // Width And Height Of Each Quad#define HEIGHT_RATIO 1.5f // Ratio That The Y Is Scaled According To The X And Z HDC hDC=NULL;// Private GDI Device ContextHGLRC hRC=NULL;// Permanent Rendering ContextHWND hWnd=NULL;// Holds Our Window HandleHINSTANCE hInstance;// Holds The Instance Of The Application bool keys[256];// Array Used For The Keyboard Routinebool active=TRUE;// Window Active Flag Set To TRUE By Defaultbool fullscreen=TRUE;// Fullscreen Flag Set To TRUE By Defaultbool bRender = TRUE;// Polygon Flag Set To TRUE By Default 这里我们用了一个字节数组g_HeightMap

在这篇教程中图的大小是1024×1024.STEP_SIZE是我们用来绘制地形的正方体的大小，减小步长，地形图就会变得更加平滑。有一点很重要，步长越小你的程序所做的工作就将越多，特别是在使用大的高度图时。HEIGHT_RATIO用来缩放地形的Y轴的值，较小的HEIGHT_RATIO可以用来绘制较平的山，较大的HEIGHT_RATIO用来绘制较高的山。在下面的代码中，你会看到变量bRender。如果bRender的值为真，我们就填充模式绘制多边形，如果它的值为假，那么我们就用线框模式绘制地形。

After SBF solution cultivation for some days, the Ca/P coating was very easily deposited on the porous surface that was constituted of cystiform polygon made up with irregular nanometer circles like honeycomb. The energy spectrum showed that n/n atom ratio is about 1.61:1 which is very similar to that of HA and human bone. The active surface of the porous titanium after acid-alkali treatment and SBF solution condition which calcium-phosphorus ions was supersaturated induced the formation of Ca/P deposition layer.

SBF溶液培养后发现沉积层由蜂巢状多边形胞状物组成，这些胞状物是由网状纳米环无规则排列构成，能谱测定钙、磷元素原子比n／n约为1.61∶1，与HA和人骨中的钙磷原子比很接近；通过对沉积机理的分析，认为微孔钛的活性表面和SBF溶液过饱和离子浓度的环境造成了液相中钙磷盐的沉积。

Study on the driving forces of land use/cover temporal-spatial change. On the basis of the systematical study on natural and social-ecomic factors including climate, population, technology and affluence status etc. during the past 50 years in this area, the multivariate statistics simulation models of LUCC were developed for two periods of 1950's-1980's and 1986-2000 respectively. Then, the Thiesson polygon method was used to the spatial allocation of soci-economic factors, thereby the spatial relationship between land use degree change and socieconomic factor variation was detected within GIS. Based on the analysis of the integrative characters in different geographical divisions, the electivity index was employed to describe the possible impacts of the natural landscape structure on spatial differentiation of land use transition. At last, correlation analysis between major roads and the distribution of land use change was made.

分析近50年气候资料和人文因子在不同年代的变化特点，系统地研究了气温和降水等自然因子和人口、农牧业发展、经济状况等人文因子对区域土地利用变化的影响；从时间序列的角度分析了50年代至80年代初和80年代中期至2000年两个时段土地利用／土地覆被变化的驱动因子，在相关分析的基础上，分时段建立了区域土地利用／覆被变化的自然-人文影响统计诊断模型；针对不同经济类型区选择典型县，分析近15年土地利用变化外在人文驱动力的区域相似性和差异性；尝试以THIESSEN多边形方法进行社会经济统计数据的空间化处理，探讨了土地利用程度变化与人文因素变化的空间相关关系；以优先指数模型和土地利用类型转化率与距交通干线距离的相关模型分析了景观自然与人文结构对土地利用空间转化过程的影响。

This isn't racing, but a torturous exercise in learning to keep a floaty polygon block (referred to in the game as a "car") on a flat and blurry texture map long enough to reach the first curve.

这不是比赛，而是一个艰苦的工作学习，以保持floaty多边形块（中所提到的游戏为&车&）的一个单位和模糊的纹理映射足够长的时间，达到第一个曲线。

Some example results show that it is consistent with current formular.So it not only provides an index for assessing the accuracy of line and polygon but also give a formular which can determine the size of confidence...

这不仅为GIS中线、面的精度评定提供了一个指标，而且为任意p维随机向量在不同置信度下、置信区间大小的确定提供了一个通用公式

Cells with abundant processes are in the shape of ellipse, fusiform, polygon and triangle.

非洲鸵鸟是目前世界上现存鸟类中最大的一种。

Cells were polygon and round ellipse in bulk, and only a small part were fusiform.

共同培养11天后，大部分细胞呈多边形、圆形、椭圆形，少量细胞呈梭形。

That snake Alaric named Archbishop...

庇护。。。那个毒如蛇蝎的Alaric被命名为大教主。。。

You have done lots of magical things to be amazed at.

你做了很多神奇的事物感到惊讶。