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darova


Last seen: 5 dagar ago Active since 2019

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Answered
get satellite orbit points from plot
See this link: 3d curve interpolation

mer än ett år ago | 0

Answered
Plot a curve on vertical axis
What about this a = 30; % left corner angle L = 10; % triangle size r...

mer än ett år ago | 0

Answered
How to plot streamline, streakline and pathlines without using 'streamline streamline, odexx or similar functions in Matlab'
What about ode45? Streamline is just a trajectory, if you have vector field you can find a solution [x,y,z] = peaks(20); [u,v]...

mer än ett år ago | 0

Answered
3D Sphere projection in Matlab
interpolate in spherical coordinates i = rand(20,1); j = rand(20,1); r = 1 + 0.1*rand(20,1); i1 = linspace(min(i),max(i),30)...

mer än ett år ago | 1

Answered
Plot part of sphere by binary map.
What about plot3? [x,y,z] = sphere(20); [az,el] = meshgrid(200:5:250,0:5:20); [x1,y1,z1] = sph2cart(az*pi/180,el*pi/180,1); ...

mer än ett år ago | 0

Answered
How to evaluate vector function defined in 2D with meshgrid?
Try cat fun = @(x, y) cat(3, sin(x).*sin(x), cos(x).*cos(y));

mer än ett år ago | 0

Answered
How do I fit a surface to this data properly?
I don't have this problem s = load('data.mat'); x = s.x; y = s.y; z = s.z; xx = linspace(min(x),max(x),20); yy = linspace(...

mer än ett år ago | 0

Answered
I want to fit lines to the 3D points seen in the photo and get its shape But I do not know how to do it. please guide me. The points file is available.
SOmething is wrong with the data you attached s = importdata('POINT.txt'); x = s(:,1); y = s(:,2); z = s(:,3); plot3(x,y,z,...

mer än ett år ago | 0

| accepted

Answered
How can I plot brillouin zone of 14 bravais lattice crystal
What about this [x,y,z] = sphere(4); surf(x,y,z,'facecolor','none')

mer än ett år ago | 0

Answered
I have a set of experimental data in form of a parameter as a function of the other, keeping certain conditions constant. How do I know the best curve that fits the data?
Use fit x = 0:0.1:2; y = x.^2 + 0.2*rand(size(x)); f = fit(x(:),y(:),'poly2'); plot(x,y,'.r') line(x,f(x)) legend('origina...

mer än ett år ago | 0

Answered
Using fit inside a loop
Try cell sf{1} = @(x) sin(x); sf{2} = @(x) cos(x); x = 0:0.1:10; plot(x,sf{1}(x),'r') line(x,sf{2}(x))

mer än ett år ago | 0

Answered
i have to create a grid using meshgrid fn. and name it as grid_mat. i'm unable to name it and select points on it for different planets .
You can't assing variables that way a = b = 0; You can use deal [a,b] = deal(0); Or you can separately initiate variables a...

mer än ett år ago | 0

Answered
How do you use contour if you only know f(x,y,z) but not z(x,y)?
Use isosurface with griddata [x,y,z] = meshgrid(-10:10); % x y z range f = x + y.^2 - z.^2; % function ...

mer än ett år ago | 0

| accepted

Answered
Howextract results From pdeplot3D to plotthe temperature variation in XY Plan
You are looking for pdecont

mer än ett år ago | 0

Answered
How to present point of latitude and elevation on the map by using MATLAB?
See geoshow

mer än ett år ago | 0

| accepted

Answered
Calculating area volume from longitude, latitude and altitude
Convert spherical coordinates into cartesian using sph2cart Use alphaShape to build an object and calculate volume

mer än ett år ago | 0

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Answered
How can I extrapolate following data to a certain value in x direction.
Make this changes to your code Transmission = [Tranmission Tansmission(end)]; Length = [Length 5000];

mer än ett år ago | 0

| accepted

Answered
How to Interpolate between ROIs in 3D space
Maybe it will be helpfull t = linspace(0,2*pi,11)+pi/2; r = 3 + sin(5*t); % create a start [x,y] = pol2cart(t,r); ...

mer än ett år ago | 0

Answered
How to generate Q4 element mesh in selected area?
What about this? x = [-10:-8 -7:7 8:10]; y = [-8:-6 -5:5 6:8]; [X,Y] = meshgrid(x,y); i1 = -8<X & X<8 & -6<Y & Y<6; % ...

mer än ett år ago | 0

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Answered
plot 5 indipendent vectors in 3D plot
Just use griddata to interpolate data Delta is represented by color. x = 20*rand(100,1)-10; % surface coordinates y = 20...

mer än ett år ago | 0

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Answered
Image analysis. Measure the radius of a bending filament as a function of arc length
See this example. Red lines are normals from first edge/curve. I'd use polyxpoly to calculate intersections between normals and ...

mer än ett år ago | 0

Answered
Time integration function in Matlab
Use trapz if you have numerical data Use integral for formula

mer än ett år ago | 0

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Answered
I want to hide the circles and only plot centroids with "+" sign
binarize use regionprops

mer än ett år ago | 0

Answered
How to rotate a surface(or a 2D plane) in 3D Cartesian coordinate ?
See this example: R = @(a) [cosd(a) -sind(a); sind(a) cosd(a)]; t = 0:.1:2*pi; [x,y] = pol2cart(t,5+sin(5*t)); line(x,y) v1...

mer än ett år ago | 0

| accepted

Answered
Solve multiple eigenvalue ODE problem with bvp4c
Remove those spaces

mer än ett år ago | 0

Answered
Plot multiple contours in 3D without volume data
You can use surf t = linspace(0,2*pi,50); [x1,y1] = pol2cart(t,1+0.1*sin(5*t)); % first contour [x2,y2] = pol2cart(t,1); ...

mer än ett år ago | 0

Answered
How to find Area Under the Curve of a Smoothing Spline Curve Fitted Model from Discrete Data Points ?
Use code instead of application x = [0.3 0.55 0.6 0.7 0.8 1.2 1.4 2.0 2.5 3.0 3.5 4.0]; y = [0.0010640542,0.0010009253,0.00097...

mer än ett år ago | 0

Answered
Create local coordinate system and update throughout flight
Just find tangent of a trajectory x = 0:.1:pi; y = sin(x); u0 = diff(x); % component of a tangent v0 = diff(y)...

mer än ett år ago | 0

Answered
Griddata generates duplicate points while plotting CFD imported 3D data on an xy Plane
There is something wrong with the data D = importdata('data.txt'); X = D.data(:,2); Y = D.data(:,3); Z = D.data(:,4); p...

mer än ett år ago | 0

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