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Questions tagged [angle]

A shape, formed by two lines or rays diverging from a common point (the vertex).

Angle is also used to designate the measure of an angle or of a rotation. This measure is the ratio of the length of a circular arc by its radius. In the case of an angle (figure), the arc is centered at the vertex and delimited by the sides. In the case of a rotation, the arc is centered at the center of the rotation and delimited by any point and its image by the rotation.

Source: mathopenref wikipedia

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How to find angle between two straight lines (paths) on a SVG in Javascript?

I have two straight lines as in SVG canvas. Using pixel coordinates of LineA (A1x, A1y) (A2x, A2y) and LineB (B1x, B1y) (B2x, B2y) how can I calculate the angle between these lines. I have below code which works for THREE points (it works…
XIMRX
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Plot angle between vectors

I am searching for quite a while already now for a function that plots the angle between two arrows / line segments. e.g.: (source: matrix44.net) Can this be done easily or do I have to find the function of a segment of a radius? I am surprised…
pthesling
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Get angle of view of android camera device

I want to know the angle of view from the camera, just like in this question but using android.hardware.camera2. How can I reproduce the next code using the new camera2 library. Camera.Parameters p = camera.getParameters(); double thetaV =…
David D.
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Get angle in terms of 360 degrees

I would like to get an angle in terms of 360 degrees... for my game, I need to know which direction the player is heading in... The code here gets the proper angles, but only in terms of 90 degree increments: (meaning, when I click in upper left…
user3871
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Calculating angle between two points - java

I need to calculate the angle in degrees between two points, with a fixed point that is connected with the given two points by a line. Here is an image that illustrates what I need: Here is what I have tried so far: public static float…
David Lasry
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Angle gradient in canvas

I'm looking for a code that permits to have this effect on a canvas' stroke. I've already got an animated circular stroke, I only need to get the ANGLE gradient, not linear and not radial. I've got only 3 colours. The existing one is available here…
AndrePliz
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Continous angles in C++ (eq unwrap function in matlab)

I guess it is not that hard, but I have been stuck on that one for a while. I have a joint that can rotate both direction. A sensor gives me the angle of the joint in the range -pi and +pi. I would like to convert it in the range -infinity and …
Vince
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How to calculate angle between two Geographical/GPS coordinates?

I have two GPS Coordinates e.g. (Lat1, Long1) and (Lat2,Long2) Could anybody please help me find the angle between those two points. Values should be 0-360 degrees.
Chintan Patel
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Correcting the Yaw part of one Quaternion by the Yaw part of another one

I have the following problem: A quaternion (q1) from a motion capturing device needs to be corrected by the yaw angle (and only yaw!) from another orientation quaternion (q2) derived by a second tracked object, so that the pitch and roll of q1 is…
Raboon
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Given start point, angles in each rotational axis and a direction, calculate end point

I have a start point in 3D coordinates, e.g. (0,0,0). I have the direction I am pointing, represented by three angles - one for each angle of rotation (rotation in X, rotation in Y, rotation in Z) (for the sake of the example let's assume I'm one of…
Nick Udell
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Getting the angle from a direction vector?

I have this simple function to set an angle for a vector. It effectively gets the vector's current magnitude (length), calulates the angle and converts the angle from radians to degrees. Then I apply the angle to X and Y, lastly multiplying the…
Matthew Spence
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Calculate angle of triangle Python

I'm trying to find out the angle of the triangle in the following, I know it should be 90 degrees, however I don't know how to actually calculate it in the following: Here's what I've tried: angle = math.cos(7/9.899) angleToDegrees =…
Shannon Hochkins
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Get angle between point and origin

This might have been answered before, sorry if it has. I basically need to get the angle from origin to point. So lets say Origin is (0, 0) and my target point is (3, 0). 3 O'clock = 90 degrees 6 O'clock = 180 degrees 9 O'clock = 270 degrees 12…
Dave
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How to detect mouseenter direction on a specific element

I currently have a function which detects the direction of the mouse enter. It returns an integer (0-3) for each section as illustrated below. I'm trying to figure out how to alter this function to produce an output based on this…
ahren
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Get tilt angle from the android accelerometer

I have a class that implements SensorEventListener and I would like to get the tilt Angle of my device using the Accelerometer. I looked for examples on the internet but they use Sensor.TYPE_MAGNETIC_FIELD. I believe my device doesn't have this…
user1615888
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