package?com.android.test.test;

import?android.content.pm.ActivityInfo;
import?android.widget.Toast;

/**
?*?Created?by?11920?on?2017/5/12.
?*/

public?class?FourParaChange?{
????private?double?dxdyKdAngle;
????public?FourParaChange?（Matrix?MP）?{
????????int?iCol?=?MP.getCol（）;//MP矩陣的列數(shù)【X?Y?x?y】
????????int?iRow?=?MP.getRow（）;//MP矩陣【X?Y?x?y】的行數(shù)，等價(jià)于已知的公共點(diǎn)個(gè)數(shù)
????????if?（iRow?????????{
??????????return;
????????}
????????//方程:A*X=Mb
???//構(gòu)建系數(shù)矩陣A?和?Mb
????????Matrix?A=new?Matrix（2?*?iRow?4）;/*??A=X?-Y?1?0
							???????????????????Y??X?0?1???*/

????????Matrix?Mb=new?Matrix（2?*?iRow?1）;//b=?~[x?y]

????????int?j?=?0;
????????for?（int?i?=?0;?i?????????{
????????????double?X?=?MP.getElem（j?0）?Y?=?MP.getElem（j?1）;

????????????A.setElem（i?0X）;
????????????A.setElem（i?1-Y）;
????????????A.setElem（i?21）;
????????????A.setElem（i?30）;

????????????A.setElem（i?+?1?0Y）;
????????????A.setElem（i?+?1?1X）;
?