pentaho transformation

Conversion combination Imagine an object in any direction and position in the world. We want to render it to a camera in any direction and position. To achieve this, all vertices of an object must be transformed from the object coordinate system to the world coordinate system, and then from the world coordinate system to the camera coordinate system. The mathematical transformations are summarized as follows: Matrix Multiplication satisfies the combination law, so we can use a matrix to directl

The K-L transform (Karhunen-loeve Transform) is a transformation based on statistical characteristics, some of which are referred to as hotelling (Hotelling) transformations, since he first gave the method of transforming discrete signals into a series of unrelated coefficients in 1933. The outstanding advantage of the K-L transformation is that it is good to correlate and is the best

I_dovelemonSource: CSDNDate: 2015/5/18Topics: affine transformations, orthogonal matrices, inversion, matrix multiplicationIntroductionLong time no blog, this period has been busy, today to write down the internship when the problems encountered, while continuing to update their blog.What I want to say today is some of the doubts about the 3D transformation. Mainly in what is affine transformation? What is

start with: Vertex coordinate transformation when Direct3D learn the basics of getting started, here will detail its principles: The process of rendering three-dimensional objects in Direct3D is divided into two stages: "1" tl (transforming and Lighting), i.e. coordinate transformation and illumination; "2" grating processing stage. One, tl assembly line: The following figure: 1, world

Http://blog.csdn.net/bailang71/article/details/1966158 Windows form programming coordinate system type GDI + uses three coordinate spaces: World, page, and device. World coordinates are the coordinate systems used to establish special world models in graphics. They are also the coordinate systems passed in. NET Framework. The page coordinate system refers to the coordinate system used by a drawing (such as a form or control. The device coordinate system is the coordinate system used by a physic

2.3.3 basic two-dimensional transformation The basic two-dimensional transformations include scaling, rotating, shearing, and translation ). 1) Proportional Transformation Proportional transformation is to enlarge or reduce the horizontal coordinates of any point on the plane by S11 times, and the vertical coordinates by s22 times, that is S is called the propor

ArticleDirectory Preface I. 3D mathematical history 2. Matrix Transformation 3. Implementation in OpenGL Iv. Projection Transformation 5. View Transformation Vi. Postscript 7. Reference [OpenGL ES 03] 3D Transformation: model, view, projection, and viewport Luo chaohui (http://www

The Perspective Transformation (Perspective transformation) is the projection of a picture into a new visual plane (viewing Plane), also known as a projection map (projective Mapping). The General transformation formula is: U,v is the original picture to the left, corresponding to get the transformed picture coordinates x,y, which.The

1. Coordinate Transformation of nodes in the static state of bones (reference posture) For example, there are three coordinate systems nested with each other: Child skeleton coordinate system, parent skeleton coordinate system, and world coordinate system. First, we do not consider the movement of bones.VCIs VertexVPosition in the Local Coordinate System of the Child skeletonWhen the bones are still: From child coordinate to parent coordinate:V

Original post address: http://blog.csdn.net/popy007/article/details/1797121 Perspective Projection is an important part of a 3D fixed assembly line. It is used to transform the points in the camera space from the cone (frustum) to the canonical view volume, the Perspective division action after cropping. In the algorithm, it is completed in two steps: Perspective matrix multiplication and perspective division. Perspective Projection Transformation is

Some netizens write to me hoping to understand the concrete derivation process of world space to camera space transformation matrix in fixed pipeline. In fact, I used the vector geometry in game programming in 6 has simply described the camera transform as an example of the use of base theory, but may still not be specific enough. In this article, I will try to explain the entire context of the camera transformati