# To-Drop-a-Perpendicular-Line-From-a-3D-Point-to-the-XY-Plane

To Drop a Perpendicular Line From a 3D Point to the XY Plane

# To Drop a Perpendicular Line From a 3D Point to the XY Plane

1. Click Home tabDraw panelLine. Find
2. Use an object snap to specify a point on an object that is not on the XY plane of the UCS.

This location defines the first point of the line.

3. Enter .xy and then enter @ at the Of prompt.

This operation extracts the X and Y coordinate values from the first point.

4. Enter 0 to specify the Z value.

The X and Y values extracted from the first point are combined with a new Z value (0) to finish the definition of the second point.

5. Press Enter to end the command.

sp Drop a Perpendicular Line From a 3D Point to the XY Plane. Use an object snap to specify a point on an object that is not on the XY plane of the UCS. This location defines the first point of the line. Enter .xy and then enter @ at the Of prompt.Line. Use an object snap to specify a point on an object that is not on the XY plane of the UCS. This location defines the first …3D planes, see the Algorithm 4 discussion … L. If L is an infinite line, then this is the length of a perpendicular dropped from P to L. … For any 2D point P = (x, y), the distance d(P,L) can be computed directly from this  …Drop perpendicular to the x-axis, it intersects x-axis at the point (1,0,0). The vector from the point (1,0,0) to the point (1,-3, 8) is perpendicular to …perpendicular lines from the points to the surface, …. So (x,y) are scatter plotted, and for each z point, there is a perpendicular …. and the vertical drops given by the FEX program would seem more appropriate as …

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