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Questions tagged [acceleration]

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175 questions
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Given acceleration data and the corresponding time, how can I find the position and velocity in MATLAB?

I am given this data in an excel spreadsheet. So after importing it would I just do velocity = cumtrapz(t,y) and then position = cumtrapz(velocity)?
Josh
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Wrong object rotation when I tilt my mobile in landscape orientation in Unity

I'm trying to rotate an object with the same tilt as my mobile I found this thread that is really helpful http://answers.unity3d.com/questions/139294/match-the-tilted-angle-of-phone-to-object.html But, when I put the device in landscape orientation…
rubengc
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Assigning Xeon-Phi to MPI process

My system has two xeon-phi cards attached to one single node. I am trying to run a distributed MPI code, that uses xeon-phi acceleration in offload mode. I am wondering if I run two MPI process per node, how would I assign xeon-phi to each MPI…
arbitUser1401
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animation starts when tilting

i like to start this animation when tilting. it doesn't, so i suppose some essential code is missing. please help: - (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration { flap.animationImages = [NSArray…
blacksheep
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How can I implement Declaration to bouncy ball?

i am trying to implement Deceleration on the bouncy ball. i am able to move the ball up and down but i wanted to add Declaration so when i drop the ball from height it jumps then strike the ground bounce once again and slowly slowly its speed…
UchihaSasuke
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From ODE45 take Angular acceleration MATLAB

I'm solving the eqaution motion and I need numerical integration, so I decided to use ode45 in Matlab. I found the displacement and the velocity, now I need to find the Angular acceleration and make plot with time. There's my code and…
MrPitivier
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Acceleration compensation on rotation vector using android device

I'm triying to get the inclination of an android device mounted on a moving vehicle using TYPE_ROTATION_VECTOR with sensor manager. It works fine until the vehicle accelerates or decelerates suddenly, moment in which it becomes a bit crazy and gives…
user2889840
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Calculation new velocities between objects (AABB)

lately I have been trying to create a 2D platformer engine in C++ with Direct2D. The problem I am currently having is getting objects that are resting against each other to interact correctly after accelerations like gravity have been applied to…
Tiedye
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Performance of Euler - Van Wijngaarden and sumalt transformations in conjunction with binary splitting

Given an acceleration structure like binary splitting, how well do acceleration transformations like Euler-Wijngaarden or sumalt perform when used side-by-side with it? https://en.wikipedia.org/wiki/Van_Wijngaarden_transformation The sumalt…
user2464424
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How to calculate acceleration needed based on existing acceleration/velocity rules

I have 3 values that determine an object's movement: velocity, acceleration, and maxVelocity. I also have a distance value that determines how close they are to their target (basically an X). This code runs each frame to determine actual movement…
Montblanka
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Catch acceleration event on screen

I have a menu that like a roulette, it's spinning like a whell. To catch the events i'm using touch began/move. How can i add it an acceleration ? I want to register to an acceleration event, when user touch an item and slide??
vadim
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increase speed/velocity, cocos2D

I'm following this tutorial: http://www.raywenderlich.com/475/how-to-create-a-simple-breakout-game-with-box2d-and-cocos2d-tutorial-part-12 but at the last part, it shows how we can reduce speed by applying damping on a body if (speed >…
The Windwaker
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Javafx 2d text rendering speed up

I am a little surprised that JavaFX do consume my CPU by showing simple floating text on a screen. My question is there any option tweaks to turn on hardware acceleration for nodes like Text? To Use GPU and not CPU when rendering 2D…
Mykola Golubyev
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How to calculate average velocity for different acceleration?

I want to calculate average speed of the distance traveled using gps signals. Is this formula calculates correct avg speed? avgspeed = totalspeed/count where count is the no.of gps signals. If it is wrong,please any one tell me the correct formula.
Aswin
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Accelerometer under constant acceleration and at rest

I am doing a project where I am using accelerometer to perform location tracking task. How do I differentiate between a state if object is under constant acceleration or is at rest? In both cases it will return a g, and as I understand, I will have…
user1466072
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