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C++ Matrix::GetElement方法代码示例

本文整理汇总了C++中Matrix::GetElement方法的典型用法代码示例。如果您正苦于以下问题：C++ Matrix::GetElement方法的具体用法？C++ Matrix::GetElement怎么用？C++ Matrix::GetElement使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Matrix的用法示例。


在下文中一共展示了Matrix::GetElement方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: CalLnr

 Matrix Kinematics::CalLnr(const Matrix &rerr)
{
	Matrix tem;
	Matrix lnr(3,1);
	float theta;
	
	tem.MakeUnitMatrix(3);
	
	lnr.SetElement(0,0,0);
	lnr.SetElement(1,0,0);
	lnr.SetElement(2,0,0);
	if (rerr==tem)
	{
		
	}
	else
	{
       
		theta = acos(  (rerr.GetElement(0,0) + rerr.GetElement(1,1) + rerr.GetElement(2,2) -1 ) / 2 );
		if (theta != theta)
		{
			return(lnr);
		}
		if (fabs(sin(theta))<EPS)
		{
			return(lnr);
		}
		
		lnr.SetElement(0,0, ( theta/(2*sin(theta))*(rerr.GetElement(2,1) - rerr.GetElement(1,2)) ) );
		lnr.SetElement(1,0, ( theta/(2*sin(theta))*(rerr.GetElement(0,2) - rerr.GetElement(2,0)) ) );
		lnr.SetElement(2,0, ( theta/(2*sin(theta))*(rerr.GetElement(1,0) - rerr.GetElement(0,1)) ) );

	}
	return(lnr);
}
开发者ID:hyperchi，项目名称:Cpp，代码行数:35，代码来源:Kinematics.cpp

示例2: Problem_1_C_a

void Problem_1_C_a()
{
	Image imTransformer, imTransformerWarped;
	int iRows = 500, iCols = 500;
	string strNames[2] = {"transformmer.raw","transformer_warped.raw"};

	InitImage(&imTransformer,strNames[0],iRows,iCols,3);
	InitImage(&imTransformerWarped,strNames[1],iRows,iCols,3);
	
	imTransformer.ReadImageData();
	imTransformerWarped.FillColor(0);
	
	Matrix *pmatUX[4], *pmatUX_inv[4], *pmatXU[4], *pmatTrans[4];

	Point ptO1(0.5,0.5);
	Point ptO2(0.5,0.0);
	Point ptO3(0.3086,0.0386);
	Point ptO4(0.0,0.0);
	Point ptO5(0.0386,0.3086);
	Point ptO6(0.0,0.5);

	Point ptI1(0.5,0.5);
	Point ptI2(0.5,0.0);
	Point ptI3(0.25,0.00);
	Point ptI4(0.00,0.00);
	Point ptI5(0.00,0.25);
	Point ptI6(0.0,0.5);

	Point ptaOp[1][6] = {{ptO1,ptO2,ptO3,ptO4,ptO5,ptO6,}};
	Point ptaIp[1][6] = {{ptI1,ptI2,ptI3,ptI4,ptI5,ptI6,}};
		
	for(int i = 0;i<1;i++)
	{
		Matrix matU(6,1), matV(6,1);
		Matrix matX(6,1), matY(6,1);
		
		double dU[6] = {ptaOp[i][0].iX, ptaOp[i][1].iX, ptaOp[i][2].iX, ptaOp[i][3].iX, ptaOp[i][4].iX, ptaOp[i][5].iX};
		double dV[6] = {ptaOp[i][0].iY, ptaOp[i][1].iY, ptaOp[i][2].iY, ptaOp[i][3].iY, ptaOp[i][4].iY, ptaOp[i][5].iY};
		double dX[6] = {ptaIp[i][0].iX, ptaIp[i][1].iX, ptaIp[i][2].iX, ptaIp[i][3].iX, ptaIp[i][4].iX, ptaIp[i][5].iX};
		double dY[6] = {ptaIp[i][0].iY, ptaIp[i][1].iY, ptaIp[i][2].iY, ptaIp[i][3].iY, ptaIp[i][4].iY, ptaIp[i][5].iY};
		
		matU.SetElements(dU);	
		matV.SetElements(dV);
		matX.SetElements(dX);
		matY.SetElements(dY);
		
		//
		cout<<"\n";
		matX.PrintMatrix();
		cout<<"\n";
		matY.PrintMatrix();

		pmatUX[i] = Matrix::FindMatrixA(matU,matV,2);
		pmatUX_inv[i] = pmatUX[i]->InverseMatrix();
		//
		cout<<"\n";
		pmatUX_inv[i]->PrintMatrix();

		Matrix *pmatA, *pmatB;

		pmatA = Matrix::MatrixMultiply(*pmatUX_inv[i],matX);
		pmatB = Matrix::MatrixMultiply(*pmatUX_inv[i],matY);

		pmatTrans[i] = Matrix::MergeByRow(*pmatA->MatrixTranspose(),*pmatB->MatrixTranspose());
		//
		cout<<"\n";
		pmatTrans[i]->PrintMatrix();
		delete pmatA;
		delete pmatB;
	}

	iRows = 499;
	iCols = 499;

	for(int i = 0;i<iRows;i++)
	{
		for(int j = 0;j<iCols;j++)
		{
			double dU = (double)(i)/499.00;
			double dV = (double)(j)/499.00;
			Point ptP(dU,dV);			
									
			if(ptP.LiesWithinQuarterCircle(0.5,1))
			{
				Matrix *pmatIp;
				Matrix matOp(6,1);
				
				matOp.SetElement(0,0,1.00);
				matOp.SetElement(1,0,ptP.iX);
				matOp.SetElement(2,0,ptP.iY);
				matOp.SetElement(3,0,ptP.iX*ptP.iX);
				matOp.SetElement(4,0,ptP.iX*ptP.iY);
				matOp.SetElement(5,0,ptP.iY*ptP.iY);
				
				pmatIp = Matrix::MatrixMultiply(*pmatTrans[0],matOp);	

				double dX = pmatIp->GetElement(0,0);
				double dY = pmatIp->GetElement(1,0);

				Pixel *pxP = imTransformer.GetPixel(dX*iRows,dY*iCols);
//.........这里部分代码省略.........
开发者ID:ShreyanshDaga，项目名称:ImageProcessing-3，代码行数:101，代码来源:Problem_1.cpp

示例3: Problem_1_B


//.........这里部分代码省略.........

		pmatA = Matrix::MatrixMultiply(*matTransUX_inv[i],matX);
		pmatB = Matrix::MatrixMultiply(*matTransUX_inv[i],matY);

		pMatTran[i] = Matrix::MergeByRow(*pmatA->MatrixTranspose(),*pmatB->MatrixTranspose());

		delete pmatA;
		delete pmatB;
	}

	iRows = 499;
	iCols = 499;

	for(int i = 0;i<iRows;i++)
	{
		for(int j = 0;j<iCols;j++)
		{
			double dU = (double)(i)/499.00;
			double dV = (double)(j)/499.00;
			Point ptP(dU,dV);			
									
			if(ptP.LiesWithinTriangle(ptaOp[0]))
			{
				//Check for Triangle_1
				Matrix *pmatIp;
				Matrix matOp(3,1);
				
				matOp.SetElement(0,0,1.00);
				matOp.SetElement(1,0,ptP.iX);
				matOp.SetElement(2,0,ptP.iY);
				
				pmatIp = Matrix::MatrixMultiply(*pMatTran[0],matOp);
				
				double dX = pmatIp->GetElement(0,0);
				double dY = pmatIp->GetElement(1,0);

				Pixel *pxP = imCowboy.GetPixel(dX*iRows,dY*iCols);
				imCowboyWarped.SetPixel(i,j,*pxP);
				//imTestImgae_1_Warped.SetPixel(i,j,*pxP);

				delete pxP;
				delete pmatIp;
			}
			else if(ptP.LiesWithinTriangle(ptaOp[1]))
			{
				//Check for Triangle_2
				Matrix *pmatIp;
				Matrix matOp(3,1);
				
				matOp.SetElement(0,0,1.00);
				matOp.SetElement(1,0,ptP.iX);
				matOp.SetElement(2,0,ptP.iY);
				
				pmatIp = Matrix::MatrixMultiply(*pMatTran[1],matOp);
				
				double dX = pmatIp->GetElement(0,0);
				double dY = pmatIp->GetElement(1,0);

				Pixel *pxP = imCowboy.GetPixel(dX*iRows,dY*iCols);
				imCowboyWarped.SetPixel(i,j,*pxP);

				delete pxP;
				delete pmatIp;
			}
			else if(ptP.LiesWithinTriangle(ptaOp[2]))
			{
开发者ID:ShreyanshDaga，项目名称:ImageProcessing-3，代码行数:67，代码来源:Problem_1.cpp

示例4: Problem_1_A


//.........这里部分代码省略.........
	ptaT7[2].iY = 0.25;

	ptaT8[0].iX = 0.50;
	ptaT8[0].iY = 0.00;
	ptaT8[1].iX = 0.25;
	ptaT8[1].iY = 0.25;
	ptaT8[2].iX = 0.50;
	ptaT8[2].iY = 0.50;


	iRows = 499;
	iCols = 499;

	for(int i = 0;i<iRows;i++)
	{
		for(int j = 0;j<iCols;j++)
		{
			double dU = (double)(i)/499.00;
			double dV = (double)(j)/499.00;
			Point ptP(dU,dV);			
									
			if(ptP.LiesWithinTriangle(ptaT1))
			{
				//Check for Triangle_1
				Matrix *pmatIp;
				Matrix matOp(3,1);
				
				matOp.SetElement(0,0,1.00);
				matOp.SetElement(1,0,ptP.iX);
				matOp.SetElement(2,0,ptP.iY);
				
				pmatIp = Matrix::MatrixMultiply(matTrans1,matOp);
				
				double dX = pmatIp->GetElement(0,0);
				double dY = pmatIp->GetElement(1,0);

				Pixel *pxP = imPuppy.GetPixel(dX*iRows,dY*iCols);
				imPuppyWarped.SetPixel(i,j,*pxP);
				imTestImgae_1_Warped.SetPixel(i,j,*pxP);

				delete pxP;
				delete pmatIp;
			}
			else if(ptP.LiesWithinTriangle(ptaT2))
			{
				//Check for Triangle_2
				Matrix *pmatIp;
				Matrix matOp(3,1);
				
				matOp.SetElement(0,0,1.00);
				matOp.SetElement(1,0,ptP.iX);
				matOp.SetElement(2,0,ptP.iY);
				
				pmatIp = Matrix::MatrixMultiply(matTrans2,matOp);
				
				double dX = pmatIp->GetElement(0,0);
				double dY = pmatIp->GetElement(1,0);

				Pixel *pxP = imPuppy.GetPixel(dX*iRows,dY*iCols);
				imPuppyWarped.SetPixel(i,j,*pxP);
				imTestImgae_1_Warped.SetPixel(i,j,*pxP);

				delete pxP;
				delete pmatIp;
			}
			else if(ptP.LiesWithinTriangle(ptaT3))
开发者ID:ShreyanshDaga，项目名称:ImageProcessing-3，代码行数:67，代码来源:Problem_1.cpp

示例5: 

TEST(MatrixTests, ShouldCalculatePerspectiveProjectionMatrix)
{
    Matrix projectionMatrix = Matrix::CreatePerspectiveProjectionMatrix2(0.78, 1, 0.01, 1.0);

    EXPECT_NEAR(2.432765, projectionMatrix.GetElement(0, 0), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(0, 1), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(0, 2), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(0, 3), 0.000001);

    EXPECT_NEAR(0, projectionMatrix.GetElement(1, 0), 0.000001);
    EXPECT_NEAR(2.432765, projectionMatrix.GetElement(1, 1), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(1, 2), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(1, 3), 0.000001);

    EXPECT_NEAR(0, projectionMatrix.GetElement(2, 0), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(2, 1), 0.000001);
    EXPECT_NEAR(-1.010101, projectionMatrix.GetElement(2, 2), 0.000001);
    EXPECT_NEAR(-1, projectionMatrix.GetElement(2, 3), 0.000001);

    EXPECT_NEAR(0, projectionMatrix.GetElement(3, 0), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(3, 1), 0.000001);
    EXPECT_NEAR(-0.01010101, projectionMatrix.GetElement(3, 2), 0.000001);
    EXPECT_NEAR(0, projectionMatrix.GetElement(3, 3), 0.000001);
}
开发者ID:mszacun，项目名称:3dEngine，代码行数:24，代码来源:MatrixTests.cpp

示例6: Vector

TEST(MatrixTests, ShouldCalculateViewMatrix)
{
    Matrix viewMatrix = Matrix::CreateViewMatrix(Vector(0, 0, -10), Vector(0, 0, 0), Vector(0, 1, 0));

    EXPECT_NEAR(-1, viewMatrix.GetElement(0, 0), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(0, 1), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(0, 2), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(0, 3), 0.000001);

    EXPECT_NEAR(0, viewMatrix.GetElement(1, 0), 0.000001);
    EXPECT_NEAR(1, viewMatrix.GetElement(1, 1), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(1, 2), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(1, 3), 0.000001);

    EXPECT_NEAR(0, viewMatrix.GetElement(2, 0), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(2, 1), 0.000001);
    EXPECT_NEAR(-1, viewMatrix.GetElement(2, 2), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(2, 3), 0.000001);

    EXPECT_NEAR(0, viewMatrix.GetElement(3, 0), 0.000001);
    EXPECT_NEAR(0, viewMatrix.GetElement(3, 1), 0.000001);
    EXPECT_NEAR(10, viewMatrix.GetElement(3, 2), 0.000001);
    EXPECT_NEAR(1, viewMatrix.GetElement(3, 3), 0.000001);
}
开发者ID:mszacun，项目名称:3dEngine，代码行数:24，代码来源:MatrixTests.cpp


注：本文中的Matrix::GetElement方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。