推导出用三顶点的测地坐标计算地球椭球面上三角形面积的公式。
The formula for area of triangle on ellipsoid by means of geodesic coordinate is derived in this paper.
用户利用待测颜色的光谱三刺激值调用该接口，即可快速地获得该颜色在不同色度空间的色品图中的位置及相应的色品坐标。
The interface of the control is provided and it is easy to be called to calculate the chromaticity coordinates and display the color in different chromatic spaces.
通过数据采集，进行坐标转换，能够方便地计算出测点超欠挖。
Through data collection and coordinate transformation, the over-under-excavated values can be obtained easily.
对采用坐标展点器展绘碎部点坐标所测绘的大比例尺地形图的精度进行了系统地分析，并定量地给出了采用不同测距方式展点测图的点位中误差。
The precision of a large scale topographic map is systematically analyzed, which is measured and drawn with the help of coordinate point distributor for the distribution of the detailed points.
同时对测头系统、机床坐标定位误差进行了补偿，有效地提高了在线检测精度。
This system could compensate the positioning errors of machine tools, improve the measuring accuracy effectively.
同时对测头系统、机床坐标定位误差进行了补偿，有效地提高了在线检测精度。
This system could compensate the positioning errors of machine tools, improve the measuring accuracy effectively.
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