Point/Delta
Delta Offset Point
Creates a new point by applying X and Y offsets (dX, dY) to an existing reference point.
What It Does
The Point/Delta operator creates a new point by adding specified X and Y offset values to an existing reference point. This is the standard method for creating points at known distances from existing geometry.
Syntax
Point/Px, DeltaD, DeltaDz
Quick Input
P: [reference point]
Z: 0
dX: [X offset — positive = right, negative = left]
dY: [Y offset — positive = up, negative = down]
Direction Selector
No direction selector is required. The result is uniquely determined by the input geometry.
Worked Examples
Setup:
P0 = (100, 50)
Point/P0, dX=25, dY=10, 0
→ P16 = (125, 60) [+25 in X, +10 in Y]
Point/P0, dX=-30, dY=0, 0
→ P17 = (70, 50) [-30 in X, no Y change]
Point/P0, dX=0, dY=-20, 0
→ P18 = (100, 30) [no X change, -20 in Y]
Analytic Rule
New point coordinates:
x_new = x_ref + dX
y_new = y_ref + dY
Positive dX: offset to the right (+X direction)
Negative dX: offset to the left (-X direction)
Positive dY: offset upward (+Y direction)
Negative dY: offset downward (-Y direction)
Result: Exact analytic coordinates.
FAQ
What is the difference between Point/Delta and Point/Angle,Dist?
Point/Delta uses Cartesian X and Y offsets. Point/Angle,Dist uses polar coordinates — an angle and a distance. Use Delta when you know the X and Y distances. Use Angle,Dist when you know the direction and distance.
Can I use decimal offset values?
Yes. All offset values support decimal precision — for example dX=12.5, dY=-7.25.