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| author | Siddhesh Wani | 2015-05-25 14:46:31 +0530 |
|---|---|---|
| committer | Siddhesh Wani | 2015-05-25 14:46:31 +0530 |
| commit | db464f35f5a10b58d9ed1085e0b462689adee583 (patch) | |
| tree | de5cdbc71a54765d9fec33414630ae2c8904c9b8 /tests/unit_tests/test305_Moebius | |
| download | Scilab2C_fossee_old-db464f35f5a10b58d9ed1085e0b462689adee583.tar.gz Scilab2C_fossee_old-db464f35f5a10b58d9ed1085e0b462689adee583.tar.bz2 Scilab2C_fossee_old-db464f35f5a10b58d9ed1085e0b462689adee583.zip | |
Original Version
Diffstat (limited to 'tests/unit_tests/test305_Moebius')
| -rw-r--r-- | tests/unit_tests/test305_Moebius/Moebius.sci | 66 | ||||
| -rw-r--r-- | tests/unit_tests/test305_Moebius/XYgrid.sci | 32 |
2 files changed, 98 insertions, 0 deletions
diff --git a/tests/unit_tests/test305_Moebius/Moebius.sci b/tests/unit_tests/test305_Moebius/Moebius.sci new file mode 100644 index 0000000..cb598c0 --- /dev/null +++ b/tests/unit_tests/test305_Moebius/Moebius.sci @@ -0,0 +1,66 @@ +//SCI2C: DEFAULT_PRECISION= DOUBLE
+
+function Moebius()
+
+//the program construct moebius
+// and klein bottle surface from
+//http://www.metlin.org/mathematics/
+// topological-constructs/non-orientable-surfaces/
+
+
+// ---------------------
+// --- Moebius strip ---
+// ---------------------
+num_points = 20;
+R = 20;
+a = -0.4;
+b = 0.4;
+
+step=(b-a)./(num_points-1);
+step1=(2*%pi)./num_points;
+s=a:step:b;
+t=0:step1:2*%pi;
+
+[S, T] = XYgrid(s, t);
+x = [R + (S.*cos(T./2))].*cos(T);
+y = [R + (S.*cos(T./2))].*sin(T);
+z = S.*sin(T./2);
+
+disp('x(1:10)')
+disp(x(1:10))
+disp('y(1:10)')
+disp(y(1:10))
+disp('z(1:10)')
+disp(z(1:10))
+
+// ENABLE/DISABLE PLOT
+// scf(0); surf(x, y, z);
+
+// -----------------------
+// --- Klein Bottle II ---
+// -----------------------
+num_points = 50;
+
+//u = linspace (0, 2*(%pi), num_points);
+//v = linspace (0, 2*(%pi), num_points);
+step_u = (2*%pi)./num_points
+u = 0:step_u:2*%pi;
+v = u;
+
+[U,V] = XYgrid(u,v);
+
+x1 = cos(U).*(cos(U./2).*(sqrt(2)+cos(V))+(sin(U./2).*sin(V).*cos(V)));
+y1 = sin(U).*(cos(U./2).*(sqrt(2)+cos(V))+(sin(U./2).*sin(V).*cos(V)));
+z1 = -1.*sin(U./2).*(sqrt(2)+cos(V))+cos(U./2).*sin(V).*cos(V);
+
+disp('x1(1:10)');
+disp(x1(1:10));
+disp('y1(1:10)')
+disp(y1(1:10))
+disp('z1(1:10)')
+disp(z1(1:10))
+// ENABLE/DISABLE PLOT
+// scf(1) ;surf(x1, y1, z1)
+
+endfunction
+
diff --git a/tests/unit_tests/test305_Moebius/XYgrid.sci b/tests/unit_tests/test305_Moebius/XYgrid.sci new file mode 100644 index 0000000..0957237 --- /dev/null +++ b/tests/unit_tests/test305_Moebius/XYgrid.sci @@ -0,0 +1,32 @@ +//SCI2C: NIN= 2 +//SCI2C: NOUT= 2 +//SCI2C: OUT(1).TP= IN(1).TP
+//SCI2C: OUT(1).SZ(1)= IN(2).SZ(2) +//SCI2C: OUT(1).SZ(2)= IN(1).SZ(2) +//SCI2C: OUT(2).TP= IN(1).TP +//SCI2C: OUT(2).SZ(1)= IN(2).SZ(2) +//SCI2C: OUT(2).SZ(2)= IN(1).SZ(2) +//SCI2C: DEFAULT_PRECISION= DOUBLE + +// ------------------------------------ +// this script emulate the matlab meshgrid +// only for bidimensional mesh. +// ------------------------------------ + +function [X,Y] = XYgrid(x,y) + +n = length(x); +m = length(y); + +X=zeros(m,n); +Y=zeros(m,n); + +for k=1:m + X(k,1:n)=x; +end + +for h=1:n + Y(1:m,h)=y'; +end + +endfunction |