Struct catransform3d
{
Cgfloat M11 (x scaling), M12 (Y shear), M13 (), m14 ();
Cgfloat m21 (x shear), m22 (Y scaling), M23 (), M24 ();
Cgfloat m31 (), M32 (), M33 (), m34 (perspective effect, the object to be operated must have a rotation angle, otherwise there is no effect. Of course, only the perspective effect can be obtained if there is a change in the z direction );
Cgfloat M41 (X translation), M42 (Y translation), m43 (Z translation), m44 (
M, which are arranged as follows:
M = | m0 m4 m8 m12 |
| M1 m5 m9 m13 |
| M2 m6 m10 m14 |
| M3 m7 m11 M15 |
2. void glMultMatrix {fd} (const TYPE * m)
Use the current matrix to multiply the matrix specified by * m and store the result in * m. The current matrix can be a matrix specified by glLoadMatrix () or a comprehensive result of other matrix transformation functions.
OpenGL's matrix stack refers to a Special Area in memory that is used to store
photo;In foreign countries, the value of 3R, 4R, 5R... is the shorter side of the photo.Electronic photo collection standards1. The electronic information of the photo is a color image, which is stored as a one-person image file. The image file is named by the ID card number (the secret officer ID number is used for military personnel) in the format "****. jpg "." ***** "indicates the ID card number (18 or 15 digits) or secret certificate number, and" jpg "indicates the image file format.Ii. Ba
example, catch (double D) does not capture the int type exceptions. (However, there may be conversions between the inheritance class and the base class. For example, you can capture exceptions of the base class to capture exceptions of the derived class type. Also, it can be converted from a typed pointer to an untyped pointer, so the catch clause with the const void * pointer can catch any type of pointer type exception)The order in which catch clauses perform exception type matching is the or
equivalent to the center of the layer. If you set frame to (40.0, 60.0, 120.0, 80.0), the position value is automatically set to (100,100 ). We can also see that the Conversion Calculation of rotation and scaling is relative to the reference point.
The size of the frame is the same as that of Figure 3, but the anchor point is (0.0, 0.0 ):
2.5 cornerradiusWhen you want to draw, edit the child layer, and draw borders and shadows, you can specify the radius used by the layer to produce the rou
BackgroundMaster-slave switchover is a necessary step for the high-availability MySQL architecture (that is, the use does not occur, but must be prepared ). Generally, it is set to double M (M1, M2). If the current status is M1 and M2 is read-only, the general process of switching is as follows:1. Stop the application from writing M1, and set M1 to read-only.2. Check the slave status of M2 until it catches up with M13. Set M1 to writableThe details ar
/share/,/var/lib are deleted, and my. cnf files under the/etc directory are deleted.
6. If you install rpm, run the following command to delete it:
Rpm-qa | grep-I nameRpm-e mysqlxxxxx
7. After uninstalling and deleting the files, run the following command to install the downloaded server and client:
Rpm-ivh mysqlxxx
8. I optimized part of my. cnf and made adjustments based on our project requirements.
[Mysqld]2 datadir =/var/lib/mysql3 socket =/var/lib/mysql. sock4 # user = mysql56 # Disabling
/log/192.168.1.130:/root/test-dirReal 4m35. 991 sUser 4m40. 208 sSys 0m5. 306 s
5. Package and compress while transmitting and decompressing time (using the push method for remote command execution via ssh ):
[Root @ cap131 ~] # Time tar czf-/var/log | ssh 192.168.1.130 tar xzf--C/root/test-dir/Tar: Removing leading '/' from member namesReal 3m33. 711 sUser 3m37. 066 sSys 0m22. 210 s
The time for compressing and transmitting while extracting while packing (using the pull method for remote comman
How to install and configure MySQL5.7.3.0
How to install and configure MySQL5.7.3.0
First, the MySQL official website downloads the mysqlserver installation software package from http://dev.mysql.com/downloads/.
Mysql-installer-community-5.7.3.0-m13.msi "not much said, double-click to enter the installation.
-------------------------------------- Split line --------------------------------------
Install MySQL in Ubuntu 14.04
MySQL authoritative guide
. 991 sUser 4m40. 208 sSys 0m5. 306 s
5. Package and compress while transmitting and decompressing time (using the push method for remote command execution via ssh ):
[Root @ cap131 ~] # Time tar czf-/var/log | ssh 192.168.1.130 tar xzf--C/root/test-dir/Tar: Removing leading '/' from member namesReal 3m33. 711 sUser 3m37. 066 sSys 0m22. 210 s
The time for compressing and transmitting while extracting while packing (using the pull method for remote command execution via ssh ):
[Root @ cap130 te
important and interesting results. -y * |-S X/K8 o z: S------------------------ Difficulty and difficulty * ROI * 7 K + _) F "F (W W2 s" e/m13 mk47 rifle (can deal with Level 1 martial arts experts) ${2 W-R: M8] % Y! O. KJoyce, gross huybrecht's Calabi-Yau manifolds and related geometries. is the latest special book about mirror wannry. describes the problems related to the Calabi Yau manifold. an overview of how Yau solves Calabi conjecture. there
. _ 41 = M. _ 42 = M. _ 43 = M. _ 44 = 0.0f;
Based on 0:
M. _ m00 = M. _ M01 = M. _ M02 = M. _ M03 = 0.0f;M. _ M10 = M. _ M11 = M. _ M12 = M. _ M13 = 0.0f;M. _ M20 = M. _ m21 = M. _ m22 = M. _ M23 = 0.0f;M. _ m30 = M. _ m31 = M. _ M32 = M. _ M33 = 0.0f;
Sometimes we want to access a specific row in the matrix. We can use the subscript Syntax of a one-dimensional array. For example, to reference the vector of row I in matrix m, we
(aux_single | aux_rgb );Auxinitposition (0, 0,500,500 );Auxinitwindow ("Arbitrary Clipping planes ");Myinit ();Auxreshapefunc (myreshape );Auxmainloop (Display );}
(6) operations on the matrix Stack
Before talking about the Matrix stack, we will first introduce two basic OpenGL matrix operation functions:
1. Void glloadmatrix {FD} (const type * m)
Set the element values in the current matrix. * M is a pointer to 16 elements (M0, M1,..., M15). These 16 elements are the elements in the curr
the transformation.
Matrix multiplication
The number of rows in Matrix C equals the number of rows in matrix A, and the number of columns in C equals the number of columns in B.
The element of the nth column of the product C is equal to the sum of the elements of the line m of the matrix A and the corresponding elements of the nth column of Matrix B.
Thinking?1. Why the point coordinates are converted to 1x4 Matrix 2. Why the transformation matrix must be a 4x4 matrix 3.
)L jump to the bottom of the screen (if set so=n, jump to the nth line)M jump to the middle of the screenF or F jumps to a character in the bank, lowercase f looks to the right, and capital F looks to the left. Or, switch between matchesT or T jumps to a character in the bank before the lowercase t looks to the right, and the upper case T looks to the left. Or, switch between matches/Regular expression jumps to the next match. Use n or N to switch between matches.The regular expression jumps to
border, and drag down. The back is automatically ready.
5. Because it is an S-shaped, you should pay attention when changing columns. For example, to change the column, enter "Q13+1" in the first position in the second column, then in the second column in the second position to enter the "m13+1" (must pay attention to this), and then use the mouse to drag the small black triangle, it is necessary to choose this (the second co
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