Programming for drawing error ellipse 繪制誤差橢圓的程序設(shè)計方法
Based on the error theory of point measurement are the identifying of the error range set , sketch of the error ellipse , analysis on displacement of the monitoring sites and error detection , providing a fundamental theory infrastructure for dynamic assessment of surface displacement and gray prediction 根據(jù)點(diǎn)位測量的誤差理論,確定定誤差值域范圍,繪出誤差橢圓;對各監(jiān)測點(diǎn)進(jìn)行位移與誤差判別分析,為地表位移動態(tài)分析和灰色預(yù)測提供理論基礎(chǔ)。
Based on a thorough investigation on positional variances of quality control points of jacket , absolute error ellipse and relative error ellipse , which can show the precision of quality control points of jacket in any direction , are presented and then applied to quality control of jacket 在對質(zhì)量控制點(diǎn)的點(diǎn)位方差進(jìn)行深入研究的基礎(chǔ)上,給出表示導(dǎo)管架質(zhì)量控制點(diǎn)在任意方向上精度的絕對誤差橢圓和相對誤差橢圓,進(jìn)而將這兩種誤差橢圓應(yīng)用于導(dǎo)管架的質(zhì)量控制中,從而使導(dǎo)管架的質(zhì)量控制更有效和準(zhǔn)確。