rotation

问题 I take a template and sample 8 points from it (now 36). Each little dot is a mask and i take the average value from that little dotted area and i add them to a list. It ends up looking something like these: [203, 176, 160, 174, 185, 185, 152, 136, 131, 131, 131, 131, 131, 137, 144, 133, 131, 130, 130, 130, 131, 130, 139, 160, 168, 150, 141, 160, 186, 201, 209, 214, 216, 216, 216, 217] [194, 207, 216, 217, 217, 217, 217, 217, 217, 216, 214, 170, 148, 159, 171, 175, 165, 136, 131, 131, 130, 131

问题 I take a template and sample 8 points from it (now 36). Each little dot is a mask and i take the average value from that little dotted area and i add them to a list. It ends up looking something like these: [203, 176, 160, 174, 185, 185, 152, 136, 131, 131, 131, 131, 131, 137, 144, 133, 131, 130, 130, 130, 131, 130, 139, 160, 168, 150, 141, 160, 186, 201, 209, 214, 216, 216, 216, 217] [194, 207, 216, 217, 217, 217, 217, 217, 217, 216, 214, 170, 148, 159, 171, 175, 165, 136, 131, 131, 130, 131

问题 SwiftUI not only gives us get automatic animation… it lets us control how the animation occurs, using the animatableData property. So cool! Only I can't get it to work. The following code displays a clock face on the screen (numbers 0…11 🙂) and shows a toggle switch. Switching the toggle rotates the numbers by 180 degrees, animated. Or that is my intent. But instead of each number taking an animated path around the circle of numbers, each number moves along a straight line to its new position

问题 SwiftUI not only gives us get automatic animation… it lets us control how the animation occurs, using the animatableData property. So cool! Only I can't get it to work. The following code displays a clock face on the screen (numbers 0…11 🙂) and shows a toggle switch. Switching the toggle rotates the numbers by 180 degrees, animated. Or that is my intent. But instead of each number taking an animated path around the circle of numbers, each number moves along a straight line to its new position

问题 I have a set of data points in 3D space which apparently all fall onto a specific plane. I use PCA to compute the plane parameters. The 3rd component of PCA gives me the normal vector of the plane (weakest component). What I want to do next is to transform all the points onto said plane and look at it in 2D. My idea was to do the following: Find a center point (average point) on the plane Substract it from all data points to arrange them around the origin Rotate the normal so that it becomes

问题 So I am implementing a block swap algorithm in python. The algorithm I am following is this: Initialize A = arr[0..d-1] and B = arr[d..n-1] 1) Do following until size of A is equal to size of B a) If A is shorter, divide B into Bl and Br such that Br is of same length as A. Swap A and Br to change ABlBr into BrBlA. Now A is at its final place, so recur on pieces of B. b) If A is longer, divide A into Al and Ar such that Al is of same length as B Swap Al and B to change AlArB into BArAl. Now B

问题 So I am implementing a block swap algorithm in python. The algorithm I am following is this: Initialize A = arr[0..d-1] and B = arr[d..n-1] 1) Do following until size of A is equal to size of B a) If A is shorter, divide B into Bl and Br such that Br is of same length as A. Swap A and Br to change ABlBr into BrBlA. Now A is at its final place, so recur on pieces of B. b) If A is longer, divide A into Al and Ar such that Al is of same length as B Swap Al and B to change AlArB into BArAl. Now B

问题 Python 2.7.10; Numpy 1.8.1 While going through the examples on matrix rotation here I keep getting an error. The code: m = np.arange(8).reshape((2,2,2)) np.rot90(m, 1, (1,2)) The error: TypeError: rot90() takes at most 2 arguments (3 given) I tried copy and pasting, and typing out, the code, but no joy. I understand the text of the error, but not the why, especially since it is code direct from the SciPy site. What is the issue? 回答1: Unfortunately, I think the New in version 1.12.0. has been

问题 Python 2.7.10; Numpy 1.8.1 While going through the examples on matrix rotation here I keep getting an error. The code: m = np.arange(8).reshape((2,2,2)) np.rot90(m, 1, (1,2)) The error: TypeError: rot90() takes at most 2 arguments (3 given) I tried copy and pasting, and typing out, the code, but no joy. I understand the text of the error, but not the why, especially since it is code direct from the SciPy site. What is the issue? 回答1: Unfortunately, I think the New in version 1.12.0. has been

问题 I have a c# script that can rotate a gun to point at the cursor. I needed the gun to flip to the other side of the player when the cursor is above or below the player. I solved this problem with the following script: (inside the update function) Vector2 weaponDistance = Camera.main.ScreenToWorldPoint(Input.mousePosition) - weapon.transform.position; float weaponRotation = Mathf.Atan2 (weaponDistance.y, weaponDistance.x) * Mathf.Rad2Deg; if (weaponRotation < 90f && weaponRotation > -90f) {