12,045 questions
-2
votes
2
answers
82
views
Image rotation causing misplacement
I've stripped this issue down to an image on a ZStack. The image should be in the lower left corner of the ZStack. When the .rotation for the image is modified, the location changes as if the ...
- 67
0
votes
1
answer
45
views
Rotate Pelvis to face the camera UE5.6
I am in the process of making an active ragdoll character in ue5.6. I have gotten the ragdoll walking, grabbing, hanging, jumping, and all sorts of fun stuff. But I am currently stuck on how to make ...
- 1
0
votes
1
answer
29
views
How to get face/head direction/rotation from BVH files - Axis Studio?
I'm trying to get the direction/rotation of the head or the direction/rotation of the face from the neck.
I'm working whit a BHV file exported from Axis Studio:
Body: Axis Studio
Euler Order: XYZ
...
- 94
1
vote
0
answers
61
views
Euler angles continuity ZYX (Yaw Pitch Roll) when pitch crosses ±90
I’m using a Force Dimension Omega.7. From its 3×3 rotation matrix
𝑅
, I extract ZYX Euler angles (Yaw–Pitch–Roll) as:
double yaw= std::atan2(R\[1\]\[0\], R\[0\]\[0\]); // Z
double pitch = std::...
- 1
0
votes
0
answers
61
views
Gyro stabilization tilts sideways on slanted ramps (Unreal C++ custom movement component)
I’m building a custom movement system for my project (kind of a physics-driven movement framework).
Everything works great, except for one annoying issue with GYRO STABILIZATION.
Video showcase of the ...
- 1
0
votes
2
answers
98
views
Problem with offset when rotating text on an image (Pillow)
main.py
from PIL import Image, ImageDraw, ImageFont
base_img = Image.new("RGBA", (100, 100), (0, 255, 0))
txt = 'Sample <del color=red>text<del>'
rotate = 120
font = ImageFont....
0
votes
2
answers
246
views
How to rotate one vector around another by a certain angle using struct and quaternion in C language?
I am solving this problem-
U and K are vectors is R3. U rotated around K by an angle θ in radian produces a new vector V. Find the components of V as functions of U , K and θ.
I solved the problem ...
- 469
3
votes
3
answers
219
views
How to rotate a page by arbitrary angle in pymupdf?
I couldn't find how to rotate a text page of a PDF by an arbitraty angle in the pymupdf documentation.
There is page.set_rotation(angle), however, which only allows for 0, 90, 180, 270 degrees, which ...
- 27k
5
votes
1
answer
147
views
Rotate an image with transparent background
I have trouble rotating images with transparent background while retaining a transparent background. magick::image_rotate() adds a white background with a gray border (I think due to anti-aliasing).
...
- 1,220
0
votes
0
answers
53
views
Correct azimuth and GPS-based rotation logic
I'm building an Android app that uses the smartphone's sensors and GPS to rotate a camera (Pivo device) to face a specific GPS coordinate.
Azimuth Calculation
My phone is in portrait mode, and I want ...
- 1
1
vote
1
answer
89
views
Using QuestPDF with a Header having Rotate(-90) the text does not position correctly
I'm using .NET 8, C#, Blazor server, VS 2022 and QuestPDF Version="2025.5.1".
I have been unable to get the header cells to provide Rotate(-90) correctly. I am new to QuestPDF. I have ...
- 691
2
votes
3
answers
99
views
How to rotate a 2d circle around another?
I'm trying to rotate a circle around another circle in 2d.
I have the following code implemented, which rotates the circle on its axis, however, I want to rotate the circle around the other one.
var w ...
- 51
1
vote
0
answers
23
views
SPH in N-body-simulation with gravity dampens planetary rotation
I implemented a N-body-simulation that combines gravity and SPH (smoothed particle hydrodynamics). With this I can get nice "planets" that warp when they get close and that can collide. But ...
- 543
0
votes
1
answer
41
views
Variable does not update when used from different script, trying to get an object to aim at where the camera is pointing
The main goal of my code is to make my turret aim at the location that the camera is pointing at, I have used the hit.point information of a raycast function to find the position of where the camera ...
- 45
0
votes
1
answer
120
views
Find the correct orientation (eigenvectors) when aligning/registering two point clouds using PCA
I have a point cloud (using the Stanford Bunny). I'm trying to estimate the value of the rotation angle, assuming that my point cloud data (PCD) is centered and the rotation occurs only in the XY ...
0
votes
0
answers
60
views
How to make animals come from sides of screen and go in different direction
This is a top down image of the game. The character can move forward, back, and side to side
My problem is getting animals to spawn from both sides, going from left to right and right to left, in C#.
...
- 19
0
votes
0
answers
42
views
Fix a layer orientation within a symbol in Illustrator?
I need a symbol in Illustrator, that needs to be rotated differently for each instance. However, a part of it, just one layer, should remain fixed at the same orientation.
I know I can achieve it by ...
- 173
0
votes
0
answers
46
views
Rotate header of swiftui table column
I am trying to rotate the header of a TableColumn. I would also like it not being truncated or cropped.
This does not work:
TableColumn(Text("Column Name").rotationEffect(Angle(degrees: 45)),...
- 2,836
0
votes
0
answers
52
views
Smartphone attitude rotation from reference frame, airplane like
I am working on a mobile application using magnetometer, gyroscope and accelerometer to get information about device attitude as yaw, pitch and roll.
I am using Expo which has a DeviceMotion API ...
- 18
0
votes
1
answer
64
views
how to put camera beside airplane in Unity C#
I would like to position the camera and follow the airplane beside it.
The camera is in front of the airplane and not following it.
I tried this:
public class FollowPlayerX : MonoBehaviour
{
...
- 19
1
vote
1
answer
79
views
Rotating smoothly in python ursina
I'm currently writing a game and in one of my Entity subclasses, I need it to rotate "smoothly" instead of doing a teleporting esque rotation. Right now I have
def smooth_look_at(self, ...
- 21
0
votes
0
answers
26
views
Print rotation angles when rotating with TransformControls in R3F
I’m trying out R3F in React and rotating a capsule model using TransformControls (only on the Z-axis). I want to print the current rotation angle whenever it changes, but only the initial angle gets ...
- 1
1
vote
0
answers
55
views
Flutter 3D Model Won't Rotate
I recently have a project where I need to display a 3D model, such as an OBJ or GLB file, using Flutter and allow it to move by dynamically modifying its angle in real-time.
I tried using flutter_cube ...
- 11
0
votes
0
answers
37
views
Suggestions on how to fix holes appearing in 2D image rotation shader?
I have a HLSL shader I am using in unity and the idea is to take a 2D image and a depth map of that image, and rotate them based on an euler input. Right now it's rotating exactly how I want it to, ...
0
votes
1
answer
115
views
DirectX quaternion camera - rolling when changing pitch and yaw
Ok so, I'm currently making my own little engine using DirectX11. I got a lot of things working and decided to go back to my Transform class to make it a bit more polished. I changed my rotation from ...
- 23
0
votes
1
answer
49
views
Colors Turn Black After Combining Multiple Layer Rotations in SceneKit Rubik’s Cube (Swift), But Not Individually or in Specific Combinations
I’m encountering an issue where the colors of the cubelets turn black after combining multiple layer rotations, but not after individual rotations or the specific combination of left layer rotation + ...
- 15
2
votes
1
answer
68
views
Mathf.Clamp() does not adequately restrict mouselook Y-axis camera rotation at high sensitivities/input values. How can I account for this context?
I am trying to write a method, MouseLookFirstPerson(), to control camera orientation with mouse axis input. From what I can gather, the most common basic way of preventing the camera from inverting ...
- 45
0
votes
1
answer
53
views
Object Keeps Rotating with Mouse Even When No Code for Rotation is Active unity
I'm working on a Unity project where I need to rotate an object using either the mouse or the controller. However, I've run into an issue: the object keeps rotating with the mouse even when the left ...
1
vote
2
answers
72
views
java drawString vertically
I am trying to paint in paintComponent strings vertically within a given rectangle, so that the text beginning is at the vertical edge of the rectangle.
My idea is to rotate the text around its center....
- 21
0
votes
1
answer
47
views
Matplotlib polygons: Polygons are skewed after rotation
I am trying to draw an object defined by several vertices and then rotate it by defining a face and a vector that I want that face to be normal to. It works fine if I choose a vector that is parallel ...
- 117
-1
votes
1
answer
59
views
I Want to Image rotation in a modal pop up (overflow: auto )with CSS and JQuery , Wnen i Apply some part of image cuts when angle 90 or 270
When image in vertical position watermark (date time) not show properly ](https://i.sstatic.net/LOlcendr.png)
Question:
I am working on a modal where an image can be rotated by 90 degrees each time ...
0
votes
1
answer
46
views
How to handle independent camera elevation in Three.js
I have the following code that is run on every frame:
const yRotationPerFrame =
(scaleSensitivity(leftStick.x) * framePeriod) / 15
const forwardVelocity = scaleSensitivity(...
- 39
0
votes
0
answers
80
views
Ew resizing rotated rectange in html canvas
I'm trying to resizing a rotated rectangle in html canvas. The direction of resizing is to east, so basically, the rectangle width must grow, while it mantains the height fixed.
I achieved to do it in ...
0
votes
0
answers
26
views
Camera jitters when rotating but not moving
My camera rotates whenever I rotate it, I am not sure why, I have tried many solutions including: multiplying by time.deltatime, dividing by time.deltatime, trying all variations of update void, I ...
- 45
2
votes
2
answers
105
views
Processing 3D Local Rotation
So I am trying to emulate a robotic arm in Processing, and have most of it working. The problem I'm having is that the last arm segment (excluding the pinchers) needs to rotate along it's own relative ...
- 61
0
votes
1
answer
52
views
How to superimpose the rotated subplot on the another sublot?
I would like to release such configuration of plots as it presented on the picture:
The next parameters have to be variable:
Position of subplot origin point
Rotation angle of subplot
Size of ...
- 27
0
votes
0
answers
37
views
How to rotate a vector in a global frame by yaw/pitch/roll that matches expected motions
For a spacesim, I'm trying to rotate a vector of 1,0,0 (X,Y,Z) by a quaternion in C that will describe motion through space in relation to a global fixed frame (right-handed) of +X=forward, +Y=right, ...
0
votes
0
answers
46
views
How to make a rectangle rotate around its own center in a ZStack
I'm working with SwiftUI and I have a rectangle inside a ZStack that I want to rotate. However, the rotation is happening around the center of the entire ZStack, not the center of the rectangle itself....
- 11
0
votes
0
answers
158
views
How do I rotate camera in Ursina engine?
I'm making a simple space simulator, and all I need is to fly around. I managed to make camera move around but I cannot make it rotate correctly along its axes.
I couldn't make FirstPersonController ...
- 1
0
votes
0
answers
157
views
How to calc the correct angle in OpenCV and rotate image based on coordinates?
I'm working on a project and I'm detecting every table in an image via OpenCV. I was able to detect, extract and crop the tables, so I already have the cropped images with all the tables.
Now my ...
0
votes
0
answers
66
views
Having trouble getting the correct position to draw my sprite to when rotating it
I'm having trouble drawing my animation to the correct position. I draw my animation from an atlas, and offset the position of the animation by how many pixels have been trimmed when packing the ...
0
votes
1
answer
95
views
Rotate on X axis with GD
I try to generate a JPEG file from a database containing elements positionned in a container with coordinates (x,y), size (w/h), x axis angle and texture image.
I have the GD extension installed on ...
- 63
0
votes
0
answers
58
views
Rotete a Flutter Widget by dragging upper right corner
I'm trying to come up with a Flutter sicker widget that I can rotate, resize and move around. The following code works as expected the first time. However, once the widget is rotated the subsequent ...
- 683
1
vote
0
answers
48
views
Issue with Cropping and Rotating an Image While Maintaining Correct Dimensions
I am implementing a cropping functionality where I work with a downscaled version of the original image. The original image is stored in IndexedDB, and every time I fetch it, it is in its initial ...
1
vote
0
answers
76
views
How to rotate / scale around a reference point in flutter/dart?
I have a CustomPaint which I pass a object, derived from CustomPainter. In its paint() method I get a Canvas to which I draw an image.
Question: Now I need a rotation with a reference point - so not ...
- 1,362
-3
votes
2
answers
206
views
Rotation of a cube in a 3d space in unity
i like to rotate a cube on the vertical as well as the horizontal axis.
For this I have 4 inputs. Rotate left/right and up/down. The input ranges from -180 to 180 degrees on each axis.
I have tried ...
- 69
0
votes
0
answers
28
views
How to force left landscape a screen in a framework?
I am working on a Swift framework that requires specific screens to be displayed in a landscape-left orientation, while the rest of the application remains in its default portrait orientation.
I tried ...
0
votes
0
answers
32
views
Is the image rotation function (as seen in Word or PowerPoint) a Group?
I have been thinking of this problem for a while now, but can't seem to figure it out. We are all familiar with adding an image in a PowerPoint file, say for example, a square. We can rotate however ...
1
vote
0
answers
175
views
How do i get my 3D cube to rotate 45 degrees in any direction?
I am working on a 3D game and I want to get my cube(player) to be able to turn 45 degrees in any direction to give my player the ability to be able to turn. I have seen many ways of doing this online ...
- 11
0
votes
1
answer
429
views
React Native Reanimated Rotate an Animated.View on a negative y-axis value
I haven't been able to find any instructions on how to do this.
So, currently, I can "flip" an Animated.View using Gesture Handler. It works just like I want except that I want the bottom of ...
