public method math2d.lineEquation
Brief
Calculates coefficients of the line equation.
Declaration | ||
|
Parameters | |
x1 |
The X coordinate of the first point of the line. |
y1 |
The Y coordinate of the first point of the line. |
x2 |
The X coordinate of the second point of the line. |
y2 |
The Y coordinate of the second point of the line. |
Returns
The function returns coefficients a
and c
of the y - (a * x + c) = 0
equation.
To calculate y coordinate of a point on the line use
y = a * x + c
To calculate x coordinate of a point on the line use
x = (y - b) / a
Please note that lines which are collinear to Cartesian axes have equations y = c
and x = c
.
Declared in math2d