Nobody replies :(
Well i had the following idea:
make a matrix [ A , eye(3) , MinBound , MaxBound] , and reduce it to row echelon form.
That way the first 3x3 chunk will be eye(3) , the second the inverse of A , the third and fourth the respective min and max bounds for the inverse, hopefully.
I have sets of 2d vectors to be transformed by an augmented matrix A that performs an affine transform.
Matrix A can have values that differ at most |d| from the identity matrix, to limit the transformation, meaning that the min/max bounds for A are I_3 \pm dI_3
The problem is that i'd lke...
I use the matrices from here
http://en.wikipedia.org/wiki/Rotation_matrix#Basic_rotations
to perform the rotations of each vector.
Instead of using a "combined" matrix i do the rotations one after another,which us equivalent.
Instead of using the inverse, i just use the negative...
I have two vectors, v1, v2 ( the "up" and "left" vector of an object) and i want to rotate with respect to them, to implement left/right rotation and up/down rotation.
But since i am aligning the reference vector with an axis, rotating via that axis, and performing the inverse alignment...
How to find that? In R3.
I want to rotate everything around a vector, at an angle A. (making a n openGL game at my free time)
I tried , for normalized vector V = <x,y,z>:
Displace V to start of axes.
angleToYZ = acos(y);
Rotate all around Z with that angle. (1)
angleToZ = acos(z)...
You're right , it was supposed to be given.
Rayleigh's DE is y''-\mu y' + \frac{\mu (y')^3}{3} + y = 0
By rearranging it to a system of DEs, you get
y_1 = y , y_1' = y_2 \\
y_2' = \mu y_2 - \frac{\mu (y_2)^3}{3} - y_1
So i have only the derivative of y2 , i.e. the 2nd derivative of y1.
Since...
As i said, i rotate around the image center.
p1 is the rotation angle,p2 and p3 the x ,y translations respectively.
I am doing what you describe , but the problem is the following:
Say i have an image I', its center located at cx,cy, and it's transformed by p1,p2,p3.
(These parameters are...
Homework Statement
Say we have a 2D rigid body transform, with parameters p = [ p_1,p_2,p_3] for rotation, x translation and y translation respectively.
I'm using the transform to .. transform an image.
Is there a way to have:
For a point x , y : x',y' = transform(x,y,p) <=> x,y =...