a grid method of producing three dimension landforms from digital contour using VRML is studied on the basis of experiment.
本文在实验的基础上，探讨了利用ＶＲＭＬ技术从数字等高线生成三维地貌的一种格网方法。
It was introduced a way of digitizing contour lines with UN-SCAN-IT by an example.
通过实例介绍了用UN-SCAN-IT软件数字化等高线的方法,根据实例获得的数字高层模型数据,利用修正高斯模式,计算出复杂地形高程点的浓度值,然后利用Surfer 8。
According to the digital isoseismal map of 175 historical strong earthquakes of Yunnan,digital isoseisms model and 1∶400 active fault maps of Yunnan,the damage area based traditional way is compared with the area based the digital isoseisms model and the relationship between the long-axis of digital isoseisms and active fault is analyzed.
采用云南175个历史强震的等震线图、云南数字等震线模型和云南1∶400万活动断裂资料,对常规正圆法灾区范围量化与数字等震线模型灾区范围量化得到的云南宁洱6。