transformation

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MatrixTransform's matrix looks transposed to me

This is more a question of curiosity why MatrixTransform the way it is, rather than a real problem. MSDN gives the affine transformation matrix of MatrixTransform like this:[详细]

2023-01-25 14:13 分类：问答
Need to un-flatten XML using XLST Transformation

I have a source XML file which I need to un-flatten into a more structured XML so that I can then process later on as a dataset.[详细]

2023-01-24 21:09 分类：问答
OpenGL LookAt function: is the up vector arbitrary?

I am trying to understand the glLookAt function. It takes 3 triplets.开发者_运维知识库 The first is the eye position, the second is the point at which the eye stares. That point will appear in the c[详细]

2023-01-23 12:11 分类：问答
OpenGL Rotation of an object around a line

I am programming in OpenGL and C++. I know 2 points on 1 line (a diagonal line) and wish to rotate an object around that diago开发者_JAVA技巧nal line. How can I go about doing this? I know how to use[详细]

2023-01-20 21:50 分类：问答
Lists in Python [duplicate]

This question already has answers here: Closed 12 years ago. Possible Duplicate: What is the easiest way to convert list with str into list with int? =)[详细]

2023-01-19 21:49 分类：问答
Translation problem while scaling an object

I have a QGraphicsPolygonItem defined as: myShape << QPointF(-50, -50) << QPointF(50, -50)[详细]

2023-01-18 12:06 分类：问答
xsl remove all non-numeric characters and leading 1

I need to convert incoming phone number strings to a standardized format开发者_如何学JAVA that does not have any non-numeric characters and strips off the leading number if it is 1.[详细]

2023-01-18 05:46 分类：问答
Apply an affine transformation to view in Interface Builder

Is it possible to apply an affine transformation to a view directly in Interface Builder? I know I can attach an outlet and assign it to the transform in code, but I\'d like 开发者_如何学Gothe conveni[详细]

2023-01-17 07:22 分类：问答
What is a practical process for doing data transformation on a live system when hibernate + code generation is used?

I have an existing database defined via HBM.XML files (code and sql dml generated via Hibernate tools), and am looking for a practical way to perform data transformation on existing data. So suppose t[详细]

2023-01-13 01:09 分类：问答
xor n sets of variables for use in SAT transformation

I am doing a transformation from a customoized set cover problem to a sat, so I can perhaps use a sat solver for my problem.[详细]

2023-01-12 19:52 分类：问答