A function in many programming languages for computing the arctangent with two arguments
A function in many programming languages for computing the arctangent with two arguments
Questions tagged [atan2]
152 questions
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Normalising angle between negative y-axis and vector
From picture: I have to calculate alpha, defined as the angle between the lines that connects two points and the y-axis, with a range 0 to 180 in the direction that can be seen in the image, and with a range of 0 to -180 in the opposite (arrow…
Garu94
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2 answers
Atan2 is giving the false angle when object's y or z change in Unity
I wrote a algorithm. Its normally working.
Just i can not get right angle of x when y or z changes
float x = Mathf.Atan2(transform.forward.y, transform.forward.z) * Mathf.Rad2Deg
This code is giving the right angle when my object angles are…
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2 answers
Make players look direction relative to camera unity
I'm making a third person character controller in unity, I have the Player Moving with a direction and an animation. My question is: how do I make the movement rotation relative to the camera rotation
NOTE:
I am Not using transform.translate or any…
an inconspicuous semicolon
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Reverse of Atan2 with det and dot product of two vectors as input
I have a piece of code that returns the angle between two vectors in the range of [0,360]. For this I used this question: Direct way of computing clockwise angle between 2 vectors. Now I need to create a function that takes a vector and an angle as…
dexterdy Krataigos
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Making a vector library in python, but my heading() function has a problem with the atan2 function
I'm making a vector library for python (I'm pretty new to python) and I'm making a function to find the heading of the vector. Here's the code for it. (I'm using radians for all of this, btw).
def heading(self):
return math.atan2(self.x,…
pythag0ras_
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Issue with plotting a contourplot using atan2
I am trying to plot a multiplication of Gaussians in polar coordinates, but I have an issue with the atan2 function of Python.
This is my code:
import matplotlib.pyplot as plt
import numpy as np
xmin = -400
xmax = 400
ymin = -400
ymax =…
Margot
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Find the points between two points on a circle in the smaller angle
So the idea is that I want to get 20 points in X,Y coordinates between two clicks on a cirlce. The only criteria is that the points always have to be between the smaller angle between the 2 clicks.
Lets say the midpoint of the circle is c.x,c.y,…
Gabor
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How to limit the return angle from atan2() to [-pi/4,pi/4]?
I am using atan2() to find the angle between x,y values. I understand atan2 method returns a numeric value between –pi and pi. How do I map that value to [-pi/4, pi/4]. The question is related to this Limiting atan2 to specific angle ranges but I…
user4024419
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Conversion from cartesian to spherical coordinates and floating-point imprecision
I need to convert cartesian to spherical coordinates, but my implementation is suffering from floating-point imprecision. Here's what I'm doing until now:
template
Point3 cartesian_to_spherical(Point3 const&…
0xbadf00d
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how to calculate the angle in degrees using Atan2()
i need your help with this code i have here:
Console.WriteLine();
Console.WriteLine("Enter first X value: ");
float point1X = float.Parse(Console.ReadLine());
Console.WriteLine("Enter first Y value: ");
float point1Y =…
Thoomana Novakid
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How do I avoid circular movements when placing a cube on the camera position, but a bit behind?
So this is my code:
three.js
r00ster
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How do I move a picturebox from a point to my cursor gradually in C#?
I'm currently working on making a game in C# for a school project. What I want to be able to do in the program is to be able to shoot a picturebox out of my character sprite and to get that picturebox to travel toward the cursor gradually.
I've…
jallebuS
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Result of atan2 is not smooth
I am using atan2 (in MATLAB) to calculate angles, and then I take the gradient of the angle. I can see that the angle is not smooth at places like pi and pi/2, but that is not visible in the plot. Then, plotting the gradient of the angle shows big…
Tom Ligon
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Odeint function from scipy.integrate gives wrong result
I use odeint function to solve a coupled differential equations system and plot one of the variables (theta_i) after the system is solved. My variable (theta_i) comes from the equation:
theta_i = np.arctan2(g1,g2)
where g1 ang g2 are variables…
Meanmachine
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output of function doesn't store correctly
I have a function solving a differential equation system. I want to plot one of the result variables (theta_i) after the system is solved. This variable comes from the equation:
np.arctan2(g1,g2)
so its values suppose to be between -pi and pi. If I…
Meanmachine
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