3 axis drawings - into the page an x or an 0?

Question

I know their is a standard notation for pointing into the page and coming out of the page. I believe into the page is X and coming out of the page is 0. Is that correct??

Answer 1

Close. Going into the page is indeed an X, but coming out of the page is usually a dot. Both symbols, the X and the dot, are normally drawin inside a circle. The idea, by the way, is that you're looking at the point of the arrow if it's coming out of the page, or the fletching of the arrow if it's going into the page. Check out page 3 of my second reference.

Answer 2

DavidK93 gave the correrct answer if you are trying to show magnetic fields. If you draw a conductor as a line on paper (2D), then the current in the conductor will creat magnetic field lines into and out of the paper. And the "arrow" notation is conventionally used for that. The "right hand rule" also applies as follows: Grab the line with your right hand, with the thumb pointing in the direction of the current flow. The fingers now are pointing in the direction of the magnetic field, finger tips being the arrowheads.

Answer 3

typically in 3D drawings, the x-axis is left to right, the y-axis is up and down and the z-axis is in and out of the page, typically drawn at a 45-degree angle.. in and out of the page is positive z and negative z, respectively. drawing the axis at an angle gives a perception of depth to your drawing...

Answer 4

Well it all depends on your point of view:

I was taught with the perspective in the first octant (that is x,y,and z are all positive). This would mean that out from the paper is positive and towards the paper is 0 and the negatives.

Then again you need to know what your perspective is, it might be different than mine.