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Yuri

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21 Nov 2012 geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland

David, thanks a lot! Yuri

06 Nov 2012 geom3d Library to handle 3D geometric primitives: create, intersect, display, and make basic computations Author: David Legland

David, very nice and useful package. Thanks.

I have a question about sphericalAngle function. I defined the following plane:
>> p1 = [1, 1, 1]; p2 = [100, 100, 1]; p3 = [1, 100, 1];
>> pl = createPlane(p1, p2, p3);

Then a point outside the plane and the projection point onto the plane:

>> l1 = [40,40,40];
>> j1 = projPointOnPlane(l1, pl);

I'd expect the angle between l1, j1 and any point on the plane to be pi/2. However, this is what I get:

>> alpha_rad = sphericalAngle(l1, j1, p3)

alpha_rad =

1.5745 (~ pi/2)

>> alpha_rad = sphericalAngle(l1, j1, p1)

alpha_rad =

0 + 2.1073e-08i (= 0)

>> alpha_rad = sphericalAngle(l1, j1, p2)

alpha_rad =

3.1416 - 0.0000i (= pi)

Can you, please, clarify the way the function works?

Thanks

02 Jul 2012 2D/3D image segmentation toolbox 2D/3D image segmentation using level-set based active contour/surface with AOS scheme Author: Yan Zhang

Has anybody found a solution for this message:

Undefined function or method 'zy_binary_boundary_detection' for input arguments of type 'uint8'?

29 Jun 2012 Viewer3D MIP, Color, Slice and Shaded 3D (shearwarp) Volume Rendering, interactive 3D view/measurement GUI Author: Dirk-Jan Kroon

How can I change the voxel sizes, window width, etc from my Matlab function rather than using the GUI every time again?

20 Jun 2012 Viewer3D MIP, Color, Slice and Shaded 3D (shearwarp) Volume Rendering, interactive 3D view/measurement GUI Author: Dirk-Jan Kroon

I'm new to the dicom format. I have a directory of hundreds of CT slices of a wrist. How do I read all them into the tool to obtain a 3D image?

Thanks

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