Hauv kev ua lej, ib qho spline yog ib qho tshwj xeeb muaj nuj nqi uas txhais tau hais los ntawm ntau tus lej. … Splines yog cov curves nrov hauv cov subfields vim yog qhov yooj yim ntawm lawv txoj kev tsim kho, lawv qhov yooj yim thiab qhov tseeb ntawm kev ntsuas, thiab lawv lub peev xwm los kwv yees cov duab nyuaj los ntawm kev nkhaus haum thiab sib tham sib nkhaus tsim.
Dab tsi yog qhov nkhaus spline siv rau?
A spline nkhaus yog lej sawv cev rau qhov uas nws yooj yim los tsim ib qho interface uas yuav tso cai rau tus neeg siv los tsim thiab tswj cov duab ntawm txoj kab nkhaus thiab qhov chaw Txoj hauv kev dav yog tias tus neeg siv nkag mus rau ib ntu ntawm cov ntsiab lus, thiab ib qho nkhaus yog tsim nws cov duab zoo raws li qhov sib lawv liag.
Dab tsi yog cov khoom tseem ceeb ntawm spline nkhaus?
Txoj kev ntawm B-spline Curve:
Txhua lub hauv paus muaj nuj nqi muaj 0 lossis +ve tus nqi rau txhua qhov tsis muajTxhua lub hauv paus ua haujlwm muaj tus nqi siab tshaj plaws tshwj tsis yog k=1. Qhov degree ntawm B-spline nkhaus polynomial tsis yog nyob ntawm tus naj npawb ntawm cov ntsiab lus tswj uas ua rau nws txhim khu kev siv ntau dua li Bezier nkhaus.
Dab tsi yog qhov zoo ntawm B-spline nkhaus hla Bezier nkhaus?
Ua ntej, B-spline nkhaus tuaj yeem yog Bézier nkhaus. Qhov thib ob, B-spline curves txaus siab rau txhua yam tseem ceeb uas Bézier nkhaus muaj. Thib peb, B-spline curves muab kev tswj tau yooj yim dua li Bézier nkhaus tuaj yeem ua. Piv txwv li, qhov degree ntawm B-spline nkhaus yog cais los ntawm tus naj npawb ntawm cov ntsiab lus tswj.
Puas yog spline tseem ceeb?
Taw qhia. Splines yog chav kawm tseem ceeb ntawm kev ua lej siv rau kev kwv yeesIb qho spline yog ib qho kev ua haujlwm ntau yam uas feem ntau tau piav qhia tias yog "zoo li nws tuaj yeem ua tsis tau txo qis rau polynomial" (de Boor 2001). Piv txwv li, lub cubic spline qhia raws li cov kab hauv daim duab.