given image above,
I would like to check both segments (maroon/orange line could be in any slope value) which are parallel to each other if they intersect.
dashed lines are the perpendicular lines of the maroon or of the orange line (my plan is to use these to get the intersections) .
The problem now is, how can i get the points of the perpendicular lines.
Im welcome for other suggestions.
Get the vector of the line (marron/yellow) for this example the line has coords of ((1,2) (4,4))
v = (x2-x1), (y2-y1) = (3, 2))
v(perp) = (-2, 3) or (2, -3)
To create a line that starts an one of the points, say (1, 2) to get the end point add the v(perp) to the start point (1-2, 2+3) or (-1, 5). If you want a longer or shorter line scale the vector.
You can also use unit vector and magnitude but this should be easier. Pull out your Calculas II textbook or search the web for vector math.