| 数据转换中弧线失真问题的研究 |
| |
| 引用本文： | 魏金占,唐媛.数据转换中弧线失真问题的研究[J].城市勘测,2014(1):82-84. |
| |
| 作者姓名： | 魏金占 唐媛 |
| |
| 作者单位： | [1]南宁市勘察测绘地理信息院,广西南宁530022 [2]南宁市房产信息管理服务中心,广西南宁530022 |
| |
| 摘 要： | 平台多样性造成数据的转换十分频繁，但由于各类原因数据转换中总出现数据失真问题，特别是弧线曲线类数据。本文尝试使用弧线数据转换后特征点位置不变这一特性，通过重新定义弧线起始角、旋转角和结束角，利用特征点反算起始角、旋转角和结束角，之后再利用平台自身函数通过计算得到的角度参数重新构建弧线，不仅实现了一般圆弧的转换，也实现了椭圆弧的无损转换。
|
| 关 键 词： | 弧线 数据转换 失真 |
Study of Arc Distortion in the Data Conversion |
| |
| Wei Jinzhan,Tang Yuan.Study of Arc Distortion in the Data Conversion[J].Urban Geotechnical Investigation & Surveying,2014(1):82-84. |
| |
| Authors: | Wei Jinzhan Tang Yuan |
| |
| Affiliation: | 1. Nanning Explore and Survey Geoinformation Insititute, Nanning 530021, China; 2. Nanning City Real Estate Information Management Service Center,Nanning 530022, China) |
| |
| Abstract: | The variety of data platform makes frequent data conversion .Because of various problems ,the Distortion of data in the Conversion is very common ,especially to arc and curve object .In this paper a new method was brought for-wards based on the fixedness of arc feature points .By the redefinition of characteristic angles such as starting angle ,rota-tion angle and ending angle ,a new arc was rebuilt ,which helps us to fulfill the lossless data conversion . |
| |
| Keywords: | arc data conversion distortion |
| 本文献已被 CNKI 维普 等数据库收录！ |
