The use of computer for plotting relative isogram is a method that imitates manual operation.
相对等值图的计算机绘制，是模拟手工方法进行的。
And scanning line algorithm is used for the first time in displaying the plane and space isogram and nephogram.
首次将扫描线算法用于平面和空间等值线图和彩色云图的显示。
Moreover the isogram chart of countrywide maximum temperature gradient of concrete pavements with frequency of 2% is plotted.
并且绘制了全国2%频率水泥混凝土路面最大温度梯度等值线图。
The formulation for equilibrizing the lowest oil water interfacial tension was found by drawing an interfacial tension isogram.
界面张力等值图法是筛选驱油剂配方的一种有效方法。
In the process of drawing isogram the coordinates-origin method is used to control the cumulative errors of plotter and decrease them to the least.
为了控制绘图仪的累积误差，在绘制过程中，采用了坐标原点法，使累积误差减至最低限度。
This paper concentrates on how to track and extract the isogram cluster from the map image so that they can be vectorized and inputted into the spatial database rapidly and automatically.
研究地图中等值线群的快速输入问题，给出了自动跟踪提取等值线群的有效算法。
For special earthquake location research, it also provides function to draw two dimensional isogram drawings of earthquake location error and distribution drawings of three dimensional error.
对于专门进行地震定位研究的工作，还提供了绘制地震定位误差二维等值线图和三维误差分布图的功能。
For special earthquake location research, it also provides function to draw two dimensional isogram drawings of earthquake location error and distribution drawings of three dimensional error.
对于专门进行地震定位研究的工作，还提供了绘制地震定位误差二维等值线图和三维误差分布图的功能。
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