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Questions tagged [cylindrical]

58 questions
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Gnuplot and Spherical/Cylindrical plotting

I have some questions with plotting in 3D withe Gnuplot I need to plot some data (from files) in spherical coordinates. My data are organized as following, azimuth zenith intensity 1 2 0.256e-2 2 2 0.156e-2 3 3 ... …
PsichO_RObi
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Line Segment Raycasting Intersection as Cylinder

I'm writing an app in OpenGL and C++. I need to detect when the user clicks on a line segment with raycasting. However, because lines are only a pixel thick, I need to treat each line segment as a 3D cylinder to allow the user some leeway when…
user1765354
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How to convert image to cylindrical shape?

I am using objective c language. I want to convert my image to cylindrical shape. Here I am using below cpp file code to convert image. cv::Mat CylindricalWarper2 (Mat img) { cv::Mat destImgMat(img.size(), CV_8U); for(int y…
Ankit
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Plot surface in cylindrical coordinate system in matlab

I have a function and want to plot it on cylindrical coordinate. w(z,theta)=sin(n.pi.z/a).sin(m.theta) The limits of variables are: z=0..a , theta=0..theta_0 and radius of cylinder is R=1. As a physical sense I can explain that if we in the…
hamid
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Wrap Image on cylindrical image using c#

I want to wrap one image on another image (This image will be containing object like cylinder.) This will be the same effect like wrapper on any bottle. I want to achieve it in asp.net. I tried to search over internet but could not find the…
Sagar Joshi
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Plotting a rectangular matrix into a circle

I have generated a rectangular matrix with the azimouth angle changing with rows and the radius changing as you change column. These are meant to represent the relative velocities experienced by a rotating helicopter blade. This produces a matrix…
user3185852
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Boundary conditions in MATLAB cellular automata model

I'm trying to write a code to implement a cellular automata model in MATLAB and I'm having difficulty at the boundaries. I am attempting to use cylindrical boundary conditions, so the top and bottom row activate one another whilst the left and right…
ren
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Why does Python suddenly stop if the input is Yes?

I'm trying to make this program in Python which asks for the surface area and volume of a cylinder. At the end, it asks the user if it wants to calculate volume/surface area. However, if they do type in Yes, nothing happens. What is wrong with my…
Turbo
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How to find volume of petrol in horizontal cylindrical tank?

I have a task find out the amount of petrol in a horizontal cylindrical tank. I have 3 parameters. I tried this formula but did't get, help me please V=A*L radios=113.5,length=600,height=10 (height is level(cm) of petrol in Tank at end of the…
user2477724
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MATLAB going from Cart to Pol back to Cart coords for cylindrical plot

1. What I WANT to do: (i) Use input n to generate an n*n cartesian grid [x y] = meshgrid(linspace(-1,1,n)); (ii) Generate polar coordinates [theta r] = cart2pol(x,y); (iii) Evaluate a function in cylindrical coordinates z = f(theta,r); …
caseyalan
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Linear programming add weight

I have been tasked with writing a linear program that will tell the user where to add weight onto a cylindrical drum in order to balance the center of gravity. The weights are 2 lbs and 5 lbs, and a Maximum of 10 lbs can be added into one location.…
user2007843
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paste multiple images on the surface of a cylinder in ios and scroll it

I need a scroll view where multiple images are arranged in a cylindrical manner and on scrolling, the images should revolve like images on a glass cup. The cup should be slightly tilted so that the image at the back can also be seen. I tried using…
Abdur Rahman
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How to limit voronoi calculations in Matlab?

I have a stack of images of an elliptical cylinder. Within the cylinder are a few "dots"/seeds of importance. I've calculated the euclidean distance between them and the nearest neighbour. My next step is to make a voronoi diagram and calculate the…
Yotam Levy
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