开关量控制应用，利用板卡控制外部设备，性能可靠

arcgis 颜色渐变功能，该功能可以设置从一中颜色渐变到另一种颜色。-arcgis color gradient feature, which can set the color gradient from one to another in a different color.

图像缩放，双线性变换，效果较好 ，能较高比例缩放图像-image resize

三角网生成 采用三角网生长算法 自动生成随机点，构建三角网-Triangle Generation using triangulation algorithm automatically generate growth random, Construction triangulation

本程序为大地测量中高斯投影坐标计算的，包括了正算和反算-This procedure for the geodetic coordinates of Gauss projection calculations, including the calculation of the positive operators and the anti-

MapX 控件是一个常用的GIS功能组件，而鹰眼图是GIS中一个基本的功能。本文简介了MapX并详细说明在Visual Basic和Visual C++开发环境下利用MapX 控件实现鹰眼图的方法。 -MapX is a commonly used GIS components, and Hawkeye GIS map is a basic function. This paper outlines a detailed description and MapX in Visual Basic and Visual C development environment using MapX achieve Hawkeye map.

Example of bird s-eye

简单画图，可以调整线宽，设置颜色，以及字体等，给大家共享-Simple drawing. You can switch the line border, color, font, etc. Share with others.

一个GIS地图的DOME，有基本功能：选择变、点选、矩形选择等等。-A GIS map of DOME, a basic function: to choose change, click, rectangular selection and so on.

OpenGIS协会 OGC 制定的关于地理实体结构、方法的实现标准，这里给出了COM/OLE的实现规范，包括点、线、面、空间参考系统等一系列的实现标准规范，有COM和CORBA两种技术形式。可供开发组件GIS系统或深入学习GIS实体实现的人员参考-OGC OpenGIS Association on the development of the geographical entity structure, methods of achieving the standards, Here is a COM/OLE achieving the standard, including point, line, surface, Spatial Reference System Implementation of a series of standards and norms, COM and CORBA two forms of technology. Components for the development of GIS or GIS-depth study to achieve the entity reference

这是用VB编写的用以解决在建立数字高程模型中的内插问题-This is the preparation for the VB solution in the establishment of digital elevation model of interpolation problem