plot point at angle

In this image i am able to find D and b. so, is there any matlab command or logic to plot point D in 3D. Here D is a point at distance and b is angle of that point..

Answer 1

[Sachin Ganjare]

You can use plot3 command

Answer 2

[Matt J]

Use the scatter3 command

[Lalit Patil]

no, this is not the thing that i want.. I have only 'D' and 'b' and from it i want to create 3D structure.. surely i have x and y but i didn't want to use it..

[Matt J]

I don't really follow, I'm afraid. If you have geometric quantities that specify your point in 3D space, why couldn't/wouldn't you convert them to the X,Y,Z coordinates that MATLAB functions require?

Aside from that, what "3D structure" are you referring to? Please be careful about terminology, since in MATLAB language a 3D structure could be confused with this

>> s(2,3,4).a=1

s = 

2x3x4 struct array with fields:
    a