Value object or not for 3d points ?

Posted by Stefano Borini on Stack Overflow See other posts from Stack Overflow or by Stefano Borini
Published on 2010-03-16T10:29:55Z Indexed on 2010/03/17 6:01 UTC
Read the original article Hit count: 280

Filed under:

value-objects

|

design

|

geometry

I need to develop a geometry library in python, describing points, lines and planes in 3d space, and various geometry operations. Related to my previous question.

The main issue in the design is if these entities should have identity or not. I was wondering if there's a similar library out there (developed in another language) to take inspiration from, what is the chosen design, and in particular the reason for one choice vs. the other.

© Stack Overflow or respective owner

Related posts about value-objects

PHP OOP Concepts (Value Objects / Data Access Objects)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I've just started to learn PHP OOP, previously I have been doing PHP in a procedural manner. I was reading this article and I've got a couple of quick questions, How is the constructor for value objects commonly defined? As one that takes in all "data members" as parameters or stick to the… >>> More
Modelling Attributes using Value Objects

as seen on Code Project - Search for 'Code Project'
Look beyond fundamental data types when modelling object attributes >>> More
Defining relationship in value objects using Hibernate

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, We have three tables .We need to get data from these tables based upon particular conditions. Like if TableA.columv=TableB.columc=tableC.column then get data. We are using value objects to map Objects to relations. Question is how to maintain these relation ships in value objects. And how to… >>> More
Value objects in DDD - Why immutable?

as seen on Stack Overflow - Search for 'Stack Overflow'
I don't get why value objects in DDD should be immutable, nor do I see how this is easily done. (I'm focusing on C# and Entity Framework, if that matters.) For example, let's consider the classic Address value object. If you needed to change "123 Main St" to "123 Main Street", why should I need… >>> More
Generating ActionScript value objects from middle-tier Java classes

as seen on Stack Overflow - Search for 'Stack Overflow'
In a Flex / Java app stack using remoting (via BlazeDS), classes to hold data passed back and forth between client and server need to be maintained in both the client (in ActionScript) and server (in Java). I want a way to maintain theses classes in Java only, and have the corresponding ActionScript… >>> More

Related posts about design

What is difference between Interaction design, Visual Design, Web design, UX design, UI design, UI d

as seen on Stack Overflow - Search for 'Stack Overflow'
What is difference between Interaction design, Visual Design, Web design, UX design, UI design, UI development? BTB, link found below answered for UI Vs UX. http://stackoverflow.com/questions/1334496/difference-between-ui-and-ux >>> More
The Incremental Architect’s Napkin - #5 - Design functions for extensibility and readability

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Originally posted on: http://geekswithblogs.net/theArchitectsNapkin/archive/2014/08/24/the-incremental-architectrsquos-napkin---5---design-functions-for.aspx The functionality of programs is entered via Entry Points. So what we´re talking about when designing software is a bunch of functions handling… >>> More
Logo Design Online: Process Of Hiring And Working With An Online Logo Design Company

as seen on Article City - Search for 'Article City'
Hiring an online logo design company is not easy these days; you will find hundreds of logo design companies on just click of a mouse. But it';s up to your decision making skills how you select a best... [Author: Gisselle Gloria - Web Design and Development - October 05, 2009] >>> More
OO Design - polymorphism - how to design for handing streams of different file types

as seen on Stack Overflow - Search for 'Stack Overflow'
I've little experience with advanced OO practices, and I want to design this properly as an exercise. I'm thinking of implementing the following, and I'm asking if I'm going about this the right way. I have a class PImage that holds the raw data and some information I need for an image file. Its… >>> More
Is there any guidelines to convert Table design to Div design keeping same cross browser compatible

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there any guidelines to convert Table design to Div design keeping same cross browser compatible layout? >>> More