This is my solution in Python. Works with 3d points and you can simplify for 2d. import numpy as np def closestDistanceBetweenLines(a0,a1,b0,b1,clampAll=False,clampA0=False,clampA1=False,clampB0=False,clampB1=False): ”’ Given two lines defined by numpy.array pairs (a0,a1,b0,b1) Return the closest points on each segment and their distance ”’ # If clampAll=True, set all clamps to True if clampAll: clampA0=True clampA1=True clampB0=True … Read more
The following answer is from Gof book (Design Patterns) An object’s class defines how the object is implemented. The class defines object’s internal state and the implementation of its operations. In contrast, an object’s type only refers to its interface – a set of requests to which it can respond. An object can have many … Read more
With current logging frameworks, the question is moot Current logging frameworks like slf4j or log4j 2 don’t require guard statements in most cases. They use a parameterized log statement so that an event can be logged unconditionally, but message formatting only occurs if the event is enabled. Message construction is performed as needed by the … Read more
There are different types of polymorphism: overloading polymorphism (also called Ad-hoc polymorphism) overriding polymorphism So yes it is part of polymorphism.
The File.Exists method exists primarily for testing for the existence of a file when you do not intend to open the file. For example testing for the existence of a locking file whose very existence tells you something but whose contents are immaterial. If you are going to open the file then you will need … Read more
It’s a nonsense from the mathematical perspective. Yes. No. Sort of. The thing is: Floating-point numbers are approximations. You want to use a wide range of exponents and a limited number of digits and get results which are not completely wrong. 🙂 The idea behind IEEE-754 is that every operation could trigger “traps” which indicate … Read more
I think the advantage is really that you reduce the amount of data copying required over traditional methods of reading a file. If your application can use the data “in place” in a memory-mapped file, it can come in without being copied; if you use a system call (e.g. Linux’s pread() ) then that typically … Read more
Are they more expensive than iterations? Yes they are. Many Lisp variants support the idea of a “tail-call optimisation” which allows many uses of a recursive function call to be converted into an iterative one (this is simplifying a bit). If tail-call is not supported, then a recursive function call will use progressively more memory … Read more
There are legitimate criticisms of the Microsoft advice from the accepted answer. Inconsistent treatment of acronyms/initialisms depending on number of characters: playerID vs playerId vs playerIdentifier. The question of whether two-letter acronyms should still be capitalized if they appear at the start of the identifier: USTaxes vs usTaxes Difficulty in distinguishing multiple acronyms: i.e. USID … Read more
This gives a signed angle for any angles: a = targetA – sourceA a = (a + 180) % 360 – 180 Beware in many languages the modulo operation returns a value with the same sign as the dividend (like C, C++, C#, JavaScript, full list here). This requires a custom mod function like so: … Read more