def modifySingleVector(self, v=Vector([0,0,0], [0,0,0]), diff_x=0, diff_y=0, move_x=0, move_y=0, move_z=0, screen_vectors=[], scale = 1):
#Scale vector if user scrolled mouse
v.start_point[0] *= scale
v.start_point[1] *= scale
v.start_point[2] *= scale
v.end_point[0] *= scale
v.end_point[1] *= scale
v.end_point[2] *= scale
# Rotate Vector according to the current screen_x/y axis
if diff_x != 0:
v.rotateAroundAnotherVector(axis_vector=self.screen_y_vector, angle_of_rotation=diff_x)
if diff_y != 0:
v.rotateAroundAnotherVector(axis_vector=self.screen_x_vector, angle_of_rotation=diff_y)
if v not in screen_vectors:
#If objects are moving
if move_x != 0:
v.start_point += self.screen_x_vector.vector * move_x
v.end_point += self.screen_x_vector.vector * move_x
if move_y != 0:
v.start_point += self.screen_y_vector.vector * move_y
v.end_point += self.screen_y_vector.vector * move_y
#Modify the 2d representation of the vector in a 3d space
#Set start point and end point Vectors
start_point_vector = Vector(end_point=v.start_point, temp_vector=True)
end_point_vector = Vector(end_point=v.end_point, temp_vector=True)
#Get 2d coordinates of the start and the end of the 2d vector on that plane
v.screen_start_point = start_point_vector.get2dCoordinates(self.screen_x_vector, self.screen_y_vector)
v.screen_end_point = end_point_vector.get2dCoordinates(self.screen_x_vector, self.screen_y_vector)
scale_x = self.x_axis_scale
scale_y = self.y_axis_scale
root_point_x = self.root_point[0]
root_point_y = self.root_point[1]
x1 = -1 * v.screen_start_point [0]
y1 = v.screen_start_point[1]
x2 = -1 * v.screen_end_point[0]
y2 = v.screen_end_point[1]
self.app_canvas.coords(v.canvas_object,
#X1, Y1
root_point_x - x1 * scale_x, root_point_y - y1 * scale_y,
#X2, Y2
root_point_x - x2 * scale_x, root_point_y - y2 * scale_y
)
