| 1. | General rules for building cartographic symbols base 地图符号库建立的基本规定 |
| 2. | Design and implement of map symbol design system in gis 中地图符号设计系统的设计与实现 |
| 3. | Autodesk map based on map symbol database design and development 地图符号库的设计与开发 |
| 4. | Design of area map symbols in layers 基于分层的面状地图符号设计 |
| 5. | Studying on the method of drawing digital map symbol based on object - oriented programming principle 基于面向对象原理的数字地图符号设计方法研究 |
| 6. | The map symbol base system is one of the indispensable base functions in electronic map system 地图符号库系统是电子地图系统中不可缺少的功能模块之一。 |
| 7. | Considering the demand of embedded system , this paper designs and realizes a map symbol base for vns specially 结合嵌入式系统的要求,设计并实现了适合嵌入式车辆导航系统的地图符号库。 |
| 8. | In this paper , the author goes deep into the character and composition rule of point , line and area symbols , and the definition of map symbol base is brought forward 本文深入研究了点状符号、线状符号、面状符号的特点及构造原理,给出了地图符号库的定义。 |
| 9. | On the other hand , the current popular map symbol base softwares do not meet the demand of the embedded vehicle navigation system . so it is necessary to build a special map symbol base system for vns 目前已有的通用型符号库软件不能满足嵌入式车辆导航系统的要求,因此需要自行研制一款地图符号库。 |
| 10. | Firstly , an eigenvector - fitting algorithm is used in contour lines color segmentation for extracting the color keys of map features ( include contour lines ) in order to reduce the phenomena of color - alias and color - misalignment 具体工作如下:第一,采用本征向量拟合算法提取各类地图符号(包括等高线)样本的颜色特征,用以克服扫描彩色地形图中的颜色混淆和假彩色现象。 |