public static WW.Math.Point3D SnapHorizontalOrVertical(
DxfEntity.Interactor interactor,
WW.Math.Point3D p,
InteractionContext context,
int controlPointIndex)
{
bool flag = InputUtil.IsShiftPressed();
CadInteractionContext interactionContext = context as CadInteractionContext;
if (interactionContext != null)
{
flag ^= interactionContext.DefaultNonDiagonalLines;
}
if (interactor.IsActive && flag)
{
DxfLine entity = (DxfLine)interactor.Entity;
WW.Math.Point2D point2D1 = context.ProjectionTransform.TransformTo2D(controlPointIndex == 0 ? entity.point3D_1 : entity.point3D_0);
WW.Math.Point3D point3D = p;
WW.Math.Point2D point2D2 = context.ProjectionTransform.TransformTo2D((WW.Math.Point2D)point3D);
Vector2D vector2D = point2D2 - point2D1;
p = System.Math.Abs(vector2D.X) >= System.Math.Abs(vector2D.Y) ? context.InverseProjectionTransform.TransformTo3D(new WW.Math.Point2D(point2D2.X, point2D1.Y)) : context.InverseProjectionTransform.TransformTo3D(new WW.Math.Point2D(point2D1.X, point2D2.Y));
}
return(p);
}