File:Tubular neighborhood3.png
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Size of this preview: 431 × 599 pixels. Other resolutions: 173 × 240 pixels | 345 × 480 pixels | 928 × 1,289 pixels.
Original file (928 × 1,289 pixels, file size: 24 KB, MIME type: image/png)
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DescriptionTubular neighborhood3.png | Illustration of en:Tubular neighborhood |
Source | Made with en:Matlab |
Author | Oleg Alexandrov 03:01, 1 June 2007 (UTC) |
Permission (Reusing this file) |
Public domain |
Public domainPublic domainfalsefalse |
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Source code (MATLAB)[edit]
% illustration of tubular neighborhood
function main()
a=0; b=2*pi; N = 100;
X=linspace(a, b, N);
Y=sin(X);
ll = 4; % length of lines perpendicular to the curve
thin_line = 2;
thick_line = 4;
% will draw lines perpendicular to the graph of Y=f(X) at
% points separted by length of 'spacing'
spacing = 0.04;
M = floor(spacing*N);
% colors
red=[0.867 0.06 0.14];
blue = [0, 129, 205]/256;
green = [0, 200, 70]/256;
gray=0.8*[1, 1, 1];
figure(1); clf; hold on; axis equal; axis off;
view(23, 36);
% plot the lines
for k=1:N
p = (k-1)*M+2;
if p >= N
break;
end
plot3([X(p), X(p)], [Y(p), Y(p)], [-ll, ll], 'color', red, 'linewidth', thin_line)
end
% plot the curve
plot3(X, Y, 0*X, 'linewidth', thick_line, 'color', blue);
saveas(gcf, 'Tubular_neighborhood3.eps', 'psc2')
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 04:48, 2 June 2007 | 928 × 1,289 (24 KB) | Oleg Alexandrov (talk | contribs) | {{Information |Description=Illustration of en:Tubular neighborhood |Source=Made with en:Matlab |Date= |Author= Oleg Alexandrov 03:01, 1 June 2007 (UTC) |Permission=Public domain |other_versions= }} {{PD-self}} ==Matlab |
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