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Questions tagged [simulation]

Simulation is the imitation of some real thing, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system.

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OpenCV - Are Lens Distortion Coefficients inverted for projectPoints?

Good day guys, I am trying to simulate and image with lens barrel distortion. I create a virtual chessboard (only the corners) and then project it onto my image plane using OpenCV. The idea is to project these points with known distortion…
Hein Wessels
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Sharing Computation of Force in Haskell

I'm implementing a N-Body simulation in Haskell. https://github.com/thorlucas/N-Body-Simulation Right now, each particle calculates its Force, then acceleration against each other particle. In other words, O(n²) computations of force. I could reduce…
Thor Correia
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Subcircuits in HSpice netlist?

Working on Hspice first time so please bear with me. I need to write netlist for CMOS And gate. Currently, I had finished writing and testing of CMOS-Nand & inverter part. 1. CMOS Nand Gate 2. Cmos inverter I know to to implement AND gate, I need…
Virange
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Run a C# application from python script

I've just about finished coding a decently sized disease transmission model in C#. However, I'm fairly new to .NET and am unsure how to proceed. Currently I just double-click on the .exe file and the model imports config setting from text files,…
Mandelbrot
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Parallel loops and Random produce odd results

I just started playing with the Task Parallel Library, and ran into interesting issues; I have a general idea of what is going on, but would like to hear comments from people more competent than me to help understand what is happening. My apologies…
Mathias
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Matlab/CUDA: ocean wave simulation

I've studied "Simulating Ocean Water" article by Jerry Tessendorf and tried to program the Statistical Wave Model but I didn't get correct result and I don't understand why. In my program I tried only to create a wave height field at time t = 0…
Eugene Kolesnikov
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JQuery click() on a div button won't fire

I am trying to emulate a user's click on a site who's code I do not control. The element I am trying to engage with a div acting as button.
coneybeare
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What content have you made/seen made using procedural techniques

I was looking at some study i have to do in the future to do with procedural generation techniques and i was wondering what type of content you have: Developed Helped Develop Seen implemented Tried to develop and what methods/techniques/procedures…
Craig
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How do I generate discrete random events with a Poisson distribution?

I'm aware of Knuth's algorithm for generating random Poisson distributed numbers (below in Java) but how do I translate that into calling a method, generateEvent(), randomly over time? int poissonRandomNumber(int lambda) { double L =…
blank
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Is my site being attacked? Suhosin simulation, very strange activity in IP Log

I will preface this question by saying I am NOT a web developer, nor do I have much knowledge in this field. I am a business owner and have a low volume website that my customers purchase products on. I've noticed this set of queries a few minutes…
user3100907
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Collision Detection between Accelerating Spheres

I am writing a physics engine/simulator which incorporates 3D space flight, planetary/stellar gravitation, ship thrust and relativistic effects. So far, it is going very well, however, one thing that I need help with is the math of the collision…
RBarryYoung
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Three.js Retrieve data from WebGLRenderTarget (water sim)

I am trying to port this (http://madebyevan.com/webgl-water/‎) over to THREE. I think I'm getting close (just want the simulation for now, don't care about caustics/refraction yet). I'd like to get it working with shaders for the GPU boost. Here's…
relicweb
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3D Engine for Driving Simulation

Is there any open-source 3D graphics and physics engine specialized in driving simulation? Something like a configurable game engine targeted at games that involve driving, or something more specialized to urban traffic conditions and that would…
luvieere
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Molecular dynamics simulation: fluctuating dipole model implementation

I'm conducting a molecular dynamics simulation for silica. Some time ago I turned to the fluctuating dipole model, and after much effort I'm still having problems implementing it. In short, all oxygen atoms in the system are polarizable, and their…
Denis
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R: Converting cartesian coordinates to polar coordinates, and then calculating distance from origin

I've been looking for a solution to convert cartesian coordinates (lat, long) that I have to polar coordinates in order to facilitate a simulation that I want to run, but I haven't found any questions or answers here for doing this in R. There are a…
stewart6
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