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gis_system's Introduction

GIS_system

作者：Benjamin

功能：读取地图数据，绘制地图，放大，缩小，平移，在状态栏实时显示鼠标所在动态位置

坐标，控制鼠标放大缩小时的速率

开发工具：Microsoft Visual Studio 2017, Visual Basic .Net

开发日记：

                     beta Version 1.0 Date: Sept.21st
                        ·实现了地图绘制
                        ·实现显示鼠标位置信息
                     beta Version 2.0 Date: Oct.8th
                        ·增加了缩放放大功能
                        ·增加地图平移功能
                        ·修复了存在的一些bug
                     Version: 3.0 Date: Oct.9th
                        ·修复了存在的bug，实现在光标处缩放
                        ·修复了存在的bug，修复了图片拖拽时与拖拽位置不符的情况
                     Version: 4.0 Date: Oct.13th
                        ·增加了选择缩放速率功能

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