应用Visual FoxPro编制化探点位数据图

基于Visual FoxPro5．0可视化数据库管理系统,编制《化探点位数据图工具》软件,实现化探非规则测网的计算机自动提取点位的横坐标、纵坐标,点位号的横坐标、纵坐标;自动制作点位图、元素数据图、规则测网自动制作点位图、元素数据图等功能。程序界面友好、使用方便。     

地质剖面图自动绘制方法

研究了地质剖面图自动绘制的AutoLISP二次开发原理与方法，并研制出一套实用的自动绘图系统，包括数据录入、数据库的建立、数据文件的系统导入、各个绘图模块的具体编测以及菜单文件的加载运行等。开放的岩性花纹图例库不仅包含常用的岩性图例，而且可以随时增删；系统的计算、转化与输出功能使得绘图过程更加智能化；可编程对话框提供了必要的提示、多样化接口与所需参数的输入，使得软件操作简便，界面友好，充分发挥了AutoLISP二次开发的强大优势，提高了工作效率。     

地质矿产实验室质量控制图的计算机制作

国家规范在质量控制中必须使用控制图.手工绘制存在耗时多、易出错和数据不宜保存、统计慢问题.使用通用Microsoft excel软件建立质量控制图的方法,建立一个标准图表(相当于一个模板),可以满足要求.导入原始数据就可以自动生成相应的质量控制图,降低制图难度,提高速度,且非常方便存储和数据统计.     

解析空中三角测量的作业流程研究

介绍了VirtuoZo AAT软件解析空三加密的主要流程,结合本次设计的区域进行解析中三角测量加密,总结出在作业过程中提高精度和作业效率的一些方法。解析空中三角测量的作业流程主要包括测区基本参数的设置、影像列表的建立、全自动内定向、确定航带间的相对位置、自动提取连接点、连接点的编辑和PATB平差软件的使用。论述了在使用Vir-tuoZo AAT软件进行解析空中三角测量加密的过程以及在操作中可能出现的问题,提出通过精确刺点、多次加密等方法来解决,从而使测量精度得以改善。     

MAPGIS大比例尺数字测图系统的设计

随着城市信息化建设特别是GIS应用的发展，对大比例尺数字图的需求日益增加。以往的测图软件往往着重于制图的需要，很少考虑GIS应用的需求。在MAPGIS平台的基础上，根据系统性、兼容性、扩展性和开发性等原则，详细探讨了大比例尺数字测图系统的整体结构、数据组织、工作流程，设计了一个完整的数字测图系统。该系统具有野外数据采集、输入、处理、联接成图、编辑与修改及绘图等淡啤酒，在输入地物图形的同时，可以输入图形属性信息，输出符合国家标准图式的图形，并自动生成和维护拓扑关系。输出成果数据可以直接进入GIS系统，进行分析处理。     

不规则测网电测深法绘图系统软件的开发与应用

复杂的地质构造及地形起伏使电测深法野外施工难度增大。由于测网布置极不规则,物探方面已开发的计算机软件难以处理这种不规则测网的电法数据和自动成图问题。本文简述了不规则测网绘图数据的来源,处理过程,软件各模块的设计以及软件应用效果。     

数字化航测DLG新旧图式符号转换技术方法

利用现有软件功能进行数字化航测DLG新旧图式等数据自动转换,研究新、旧图式DLG数据符号转换技术流程,介绍使用CASS2008成图软件批量修改数据的图层、编码、图块、线型等方法,使用ObjectArx进行CAD二次开发,实现了各个要素符号线宽的批量转换,提高批量测绘数据处理能力。     

JDT-6陀螺测斜仪软件GyroSProcess设计与实现

针对JDT-6陀螺测斜仪配套软件“陀螺测斜仪JDT-6”在使用过程中显露出的同时需要串、并口进行通信,仍无法脱离Windows98操作系统现象,并根据工程实践中提出的新要求采用VB6开发了适用于这款仪器的软件GyroSProcess。新软件除涵盖原功能外,还在数据通信方面将串、并两条通道合二为一个USB口或COM口;导入已有测斜数据,减少数据采集量,提高测斜作业效率;计算机自动控制绞车的运行,使数据采集过程自动化;运用对象编程技术,将测斜图件转成AutoCAD形式。介绍了新软件部分增加功能中采用的关键技术、算法。经现场试验,证明GyroSProcess软件的测量结果与旧软件结果一致,可替代旧软件而成为JDT-6陀螺测斜仪的新一代配套软件。     

求解矿物反射色主波长和饱和度的一种新检索表

文章为目前国际矿相学界通用的两种标准白色光源（Ａ和Ｃ光源）以及等能光源提供了一套求解矿物颜色主波长和饱和度的新检索数据表。利用该表解法可以脱离色品图，并具有简单快速、准确可靠的优点。此外，还为Ａ和Ｃ两种标准光源提供了一套饱和度值从０．２％～１００％的色品图。     

地球化学样品分析质量管理系统

利用VFP6．0强大的数据计算和管理功能，设计了对地质调查样品分析数据的实验室质量管理系统。该系统不仅可以同时管理多个图幅样品的数据，还可以自动实现样品编码、内检样品按指定比例随机生成、一级和二级标样质量汇总、内检合格率和报出率计算、二级标样质量监控图绘制以及按选定格式进行分析数据和内检数据的导入和导出，可以根据用户的需要输出美观的表格。该系统适用于不同比例尺化探数据的实验室质量管理。     

Current trends in formats and coordinate transformations of geospatial data — based on MyGeoData Converter

With the rise in the number of applications using geospatial data and the number of GIS applications, the number of people who come into contact with geospatial data is increasing, too. Despite many attempts to introduce standardized formats in this area, they are often ignored by software developers as well as the users themselves for various reasons. When creating or exporting geographical data, users choose the format with regard to the software they use, or for which the data are intended. Users then have to deal with conversion of data formats, and considering its use also the issue of their transformation to the appropriate spatial reference system. This work presents findings related to this issue, obtained from several years of operation of an online service for the conversion and transformation of geographical data which is heavily used by users from all over the world. It presents statistics of individual formats use and spatial reference systems of geospatial data use from the point of view of both input and output data. The results, besides other things, are shown in the form of a pie chart map in which various needs of users from a variety of countries can be seen. The results of this work can be used especially by developers of applications which use geospatial data; it will allow them to quickly understand current user needs.     

天然场音频电磁法在蒙古国朝格陶勒盖铜铅锌多金属矿勘查中的应用研究

通过天然场音频电磁法在朝格陶勒盖铜、铅、锌多金属矿区的研究工作,结合地质资料并运用EH4 Data Processing Program数据处理软件,对采集数据进行有效提取,实现了天然场信号的有效加密,并应用于推测和圈定矿区内中、深部地下构造及围岩蚀变接触带位置等.通过后期钻孔验证表明,该方法能够提供丰富的找矿信息.在...     

Spatial and temporal study of nitrate concentration in groundwater by means of coregionalization

 Spatial and temporal behavior of hydrochemical parameters in groundwater can be studied using tools provided by geostatistics. The cross-variogram can be used to measure the spatial increments between observations at two given times as a function of distance (spatial structure). Taking into account the existence of such a spatial structure, two different data sets (sampled at two different times), representing concentrations of the same hydrochemical parameter, can be analyzed by cokriging in order to reduce the uncertainty of the estimation. In particular, if one of the two data sets is a subset of the other (that is, an undersampled set), cokriging allows us to study the spatial distribution of the hydrochemical parameter at that time, while also considering the statistical characteristics of the full data set established at a different time. This paper presents an application of cokriging by using temporal subsets to study the spatial distribution of nitrate concentration in the aquifer of the Lucca Plain, central Italy. Three data sets of nitrate concentration in groundwater were collected during three different periods in 1991. The first set was from 47 wells, but the second and the third are undersampled and represent 28 and 27 wells, respectively. Comparing the result of cokriging with ordinary kriging showed an improvement of the uncertainty in terms of reducing the estimation variance. The application of cokriging to the undersampled data sets reduced the uncertainty in estimating nitrate concentration and at the same time decreased the cost of the field sampling and laboratory analysis. Received: 23 July 1997 · Accepted: 31 March 1998     

Software Dedicated for the Curation of Geochemical Data Sets in Analytical Laboratories

Software designed for analytical laboratories to guarantee traceability and accessibility of rocks with their geochemical properties has been developed. The software documents the sample origin, current sample location and the location of any sample subsets (e.g., thin sections, solutions, etc.), and archives all associated geochemical data sets. The software can be installed on a personal computer so is available for use in any laboratory and allows curation before and after publication. The software will be of use in integrating and sharing geological reference materials within and among institutes. In this article, the system design and implementation are detailed. All source codes for the software are available at http://dream.misasa.okayama-u.ac.jp/ .     

双源面波数据采集与处理系统及其应用效果

双源面波数据采集与处理系统融两种勘探方法的硬件性能和软件功能于一体,既能采集与处理主动源面波数据,又能采集与处理被动源面波数据。同一测线上的双源面波联合勘探,既能兼顾浅层勘探分辨率的要求,同时也可以达到更大的勘探深度,取得良好的地质效果。对于同一场地,不同类型观测台阵、不同采集时间数据的被动源频散曲线具唯一性;排列的布设与空间位置无关,主动源面波采集数据重现性良好。     

TESSIN VISLab—laboratory for scientific visualization

Scientific visualization is an integral part of the modeling workflow, enabling researchers to understand complex or large data sets and simulation results. A high-resolution stereoscopic virtual reality (VR) environment further enhances the possibilities of visualization. Such an environment also allows collaboration in work groups including people of different backgrounds and to present results of research projects to stakeholders or the public. The requirements for the computing equipment driving the VR environment demand specialized software applications which can be run in a parallel fashion on a set of interconnected machines. Another challenge is to devise a useful data workflow from source data sets onto the display system. Therefore, we develop software applications like the OpenGeoSys Data Explorer, custom data conversion tools for established visualization packages such as ParaView and Visualization Toolkit as well as presentation and interaction techniques for 3D applications like Unity. We demonstrate our workflow by presenting visualization results for case studies from a broad range of applications. An outlook on how visualization techniques can be deeply integrated into the simulation process is given and future technical improvements such as a simplified hardware setup are outlined.     

MapGIS数据与Surfer数据相互转换的实现

剖析了Surfer的数据文件和MapGIS的数据文件格式,提出了其相互转换的方法,并编制了转换软件.特别是指出MapGIS网格化的ASCⅡ码文件,即DET文件,可以通过简单的编辑形成通用的网格化GRD文件格式,不应当再进行网格化.提出利用Surfer勾绘特定的地球化学元素异常图,转成MapGIS修饰出版的实用制图程序.     

Quantitative discrimination between magmatic units of the singhbhum granite

The weight-percent values of four mineralogic variables (quartz, K feldspar, color index, and muscovite) for 10 sets of granitic rocks (20–50 samples in each set) from magmatic units of the Singhbhum granite were used for (1) computation of the Mahalanobis' generalized distance functions (D ²) between all pairs of the 10 sets, (2) testing significance of the difference between the multivariate means, and (3) computation of the linear discriminant functions between all possible pairs of the sets. The 10 data sets are for six magmatic units which belong to three successive but closely related phases of emplacement. The multivariate means for all sets are significantly different except for those between two of the sets of phase I. Cluster analysis on the basis of theD ² values enables the 10 sets to be placed into four distinct groups. Group A includes two subgroups, one of which consists of two sets representing typical members of phase I; the other subgroup includes two sets which are typical of phase II. Group B includes two sets which are typical of phase III. The other four sets do not group with the typical representatives of the three phases, probably because of certain special conditions of their emplacement. A separate series ofD ² computation from the same data, but excluding the color index, was unsuccessful in making the four aberrant sets group with the typical members of the respective phases. Efficient LDF's could be determined for discrimination between most pairs of the 10 sets of granite rocks.     

SURFER软件图形数据的进一步处理和利用

ＳＵＲＦＥＲ软件可将原始数据网格化，自动生成等值线图形，使用方便，但它的图形编辑功能较弱，无中文标注功能，多图层操作功能方面也不能令人满意，为了弥补这些不足，需对其数据做进一步处理。本文讨论了ＳＵＲＦＥＲ软件数据的进一步处理和利用中的一些问题，作为例子，着重探讨ＳＵＲＦＥＲ软件与其它系统的接口     

湖南金刚石的显微塑性变形特征

湖南金刚石主要产自沅江流域.金刚石表面普遍遭受了强烈的熔蚀, 与位错相关的熔蚀特征主要为熔蚀线和熔蚀孔道.熔蚀线常见的为一组和二组, 有时为三组, 组内相互平行, 组间相互交切.熔蚀孔道则沿主滑移面成排分布, 孔道圆而直, 其形成的原因与主滑移面和另一强滑移面交切形成的应力虚脱区有关.将金刚石沿生长中心磨成薄片, 在阴极发光(CL)、正交偏光和显微放大观察发现, 金刚石的主滑移面方向常表现为平行消光条带, 一组条带相互平行, 二组相互交切, 三组形成六方环, 四组构成应力幻影.消光条带与褐色色带的形成密切相关, 有褐色色带必有消光条带与之对应, 但有消光条带则不一定有褐色色带与之对应.透射电镜(TEM) 资料显示: 金刚石中刃型位错与螺旋位错均有发育, 位错缠结十分明显, 位错密度分布不均, 在位错缠结的带内位错密度明显高于带间.从生长与变形特征的关系来看, 金刚石的塑性变形发生于生长完成之后.