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Bitmap Class Reference

This class is the abstract basis class (aka Interface) for implementing bitmap support for the raytracer. More...

#include <Bitmap.h>

Inheritance diagram for Bitmap

Inheritance graph
[legend]
List of all members.

Public Methods

 Bitmap ()
virtual ~Bitmap ()
virtual void getPixel (float x,float y,float &r,float &g,float &b,float &a)=0
 Return the color of the image. More...

virtual bool load (const char *filename)=0
 DEPRECIATED! loads an image. More...


Detailed Description

This class is the abstract basis class (aka Interface) for implementing bitmap support for the raytracer.

To encapsulate an image library this interface is derived. The bitmap is quadratic and size of 1. Therefore the routines for retrieving the color of a pixel use floats for the coordinates.

Author(s):
Stefan Michel
See also:
BitmapFactory , BitmapImageLib , BitmapFactoryImageLib


Member Function Documentation

void Bitmap::getPixel ( float x,
float y,
float & r,
float & g,
float & b,
float & a ) [pure virtual]
 

Return the color of the image.

As the image has the size of 1x1 the coordinates are providet with floats.

Parameters:
x   x-coordinate of pixel to be retrieved. The value must be in the intervall of 0..1
y   y-coordinate of pixel to be retrieved. The value must be in the intervall of 0..1
r   return value: the red component of the color at the given coordinate
g   return value: the green component of the color at the given coordinate
b   return value: the blue component of the color at the given coordinate
a   return value: the alpha component of the color at the given coordinate

bool Bitmap::load ( const char * filename ) [pure virtual]
 

DEPRECIATED! loads an image.

Parameters:
filename   path and filename of an valid file. The underlying engine has to support the fileformat


The documentation for this class was generated from the following file:
  • Bitmap.h
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Copyright (c) 2001 Stefan Michel, All Rights Reserved.
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