00:01
In this video we want to draw some directions given by miller indices for cartographic planes.
00:09
So our first one is going to be 1, 2, 2.
00:16
The parentheses here means that we're dealing with the plane, not the direction.
00:24
So if we go ahead and draw our x, y, and z axes, if we take the reciprocals of these we can get the points of intersection.
00:38
So we take 1, 1 half, and 1 half.
00:45
And if this is 1 unit, then we have the intersection of 1.
00:52
Oops, i labeled y and z wrong when i was talking.
00:58
Multitasking.
00:59
There we go.
00:59
X, y, z.
01:00
So 1, 1 half, 1 half.
01:04
And then we can draw the plane that intersects at those intercepts like so.
01:08
And then you know you could shade it in if i don't have any way to lighten the color.
01:14
So it would cross over, but that entire plane that encompasses that region.
01:20
Then for the 1, 1, 0.
01:31
So there's 1 unit on each.
01:33
Okay, reciprocal of 1 is 1, reciprocal of 1 is 1, reciprocal of 0 is infinity.
01:43
1, 1, and the infinity means that there's no intercept.
01:47
It's never going to cross the z axis.
01:51
In other words, it's parallel.
02:02
So we can sort of draw something like that...