What does Obj C stand for?
What does Obj C stand for?
Objective-C
Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. Objective-C source code ‘implementation’ program files usually have . m filename extensions, while Objective-C ‘header/interface’ files have .
What is self Obj C?
The self keyword refers to the instance calling the method . In addition to accessing properties, this can be used to call other methods defined on the same class (e.g., [self anotherMethod]).
Why did Apple use Objective-C instead of C++?
It’s because Objective C has been the de facto language for Mac OS X development before it was Mac OS X. When Jobs left Apple to set up NeXT, the language Objective C was developed as a specific language that wasn’t C++ and avoided many of its pitfalls.
What is iVar Objective-C?
private vs public For a private/protected variable, use iVar; for a public variable, use property. If you want to use the benifit of property attributes for a private variable, like retain, nonatomic etc., declare the property in the implementation file as a private property.
What is C ## used for?
What Is C#? C# is a modern, general-purpose programming language that can be used to perform a wide range of tasks and objectives that span over a variety of professions. C# is primarily used on the Windows . NET framework, although it can be applied to an open source platform.
What can be stored in an OBJ file?
OBJ file allows color and texture information to store in an associated file format called the Material Template Library (MTL). Multi-color geometric models render using these two files together. MTL files are ASCII based and facilitates in computer rendering by describing light reflecting properties of a surface using the model of Phong
Is the OBJ file the same as the mtl file?
Nevertheless, there can be interoperability problems associated with applying colors and textures using an associated MTL file. An OBJ file refers to the MTL file in an mtllib declaration and definitions for objects (polygonal or freeform) within the OBJ file can refer to a particular named material definition with a usemtl statement.
How to describe a polygon in OBJ file format?
To describe a polygon, the file first describes each point [vertex] with the “v” keyword, then describes the face with the “f” keyword. The line of a face command contains the enumerations of the points in the face, as 1-based indices into the list of points, in the order they occurred in the file.”
When did the Obj format first come out?
The OBJ format was developed by Wavefront Technologies around 1990 and the format was openly documented before 1995 as Appendix B1 of a manual for version 3 of the Advanced Visualizer software sold by Wavefront.