Unlike 4D Draw, 4D CAD follows mathematical conventions for coordinates

- positive X-coordinates extend to the right (the positive X-axis)
- negative X-coordinates extend to the left (the negative X-axis)
- positive Y-coordinates extend to the top (the positive Y-axis)
- negative Y-coordinates extend to the bottom (the negative Y-axis).

4D CAD is two-dimensional (there are no 3D features).

Coordinates are 64-bit floating-point values, see Unit and scale.

This manual uses the `.`

for decimal fractions
The notation for a point with X-coordinate `1.23`

and Y-coordinate `−4.56`

is
`(1.23,−4.56)`

.

**Methods**

CADDistanceXY.