joshua
/
awesome-attractor
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made some shit, going to hardcode some shit

master
unknown 14 years ago
parent
68ab1640a3
commit
2e97437faf
8 changed files with 269 additions and 279 deletions
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  1. 1
      AttractorKernel.hpp
  2. 240
      Canvas.cpp
  3. 44
      Canvas.hpp
  4. 137
      canvae/PNG.cpp
  5. 27
      canvae/PNG.hpp
  6. 58
      canvae/Raw.cpp
  7. 24
      canvae/Raw.hpp
  8. 13
      main.cpp

1
AttractorKernel.hpp
View File

@ -22,7 +22,6 @@ protected:
// stuff used by subclasses // stuff used by subclasses
AttractorKernel(const unsigned int dimension, const unsigned int numberOfParameters); AttractorKernel(const unsigned int dimension, const unsigned int numberOfParameters);
void reallocParameters(const unsigned int numberOfParameters);
public: public:

240
Canvas.cpp
View File

@ -1,241 +1,3 @@
#include "Logger.hpp"
#include <fstream>
#include <cmath>
#include <cstdlib>
#include <cassert>
#include "pngwriter/pngwriter.h"
#include "Canvas.hpp" #include "Canvas.hpp"
// lol
Canvas::Canvas(unsigned int width, unsigned int height, unsigned int num_colors):
dim(2), width(width), height(height), num_colors(num_colors), v(0) {
int_array = new unsigned int[width*height*num_colors];
size = new unsigned int[2];
size[0] = width;
size[1] = height;
assert(int_array != NULL);
clear();
LogDebug("New Canvas\n");
}
void Canvas::clear() {
for ( unsigned int i = 0; i < width*height*num_colors; i++ ) {
int_array[i] = 0;
}
}
//void Canvas::update_viewwindow() {
//
// //width and height of attractor
// const double dx = xmax - xmin;
// const double dy = ymax - ymin;
//
// //fix aspect ratio
// if ( dx > dy * ((float)width / height) ) {
// const double height2 = dx * ((float)height / width);
// const double middle = 0.5 * (ymax + ymin);
// ymax = middle + 0.5 * height2;
// ymin = middle - 0.5 * height2;
//
// } else {
// const double width2 = dy * ((float)width / height);
// const double middle = 0.5 * (xmax + xmin);
// xmax = middle + 0.5 * width2;
// xmin = middle - 0.5 * width2;
// }
//
// //add a 4% marge
// xmin -= 0.02 * dx;
// xmax += 0.02 * dx;
// ymin -= 0.02 * dy;
// ymax += 0.02 * dy;
//
// //constants for speed
// constant1 = width / (xmax - xmin);
// constant2 = height / (ymax - ymin);
//}
void Canvas::plot(double x, double y) {
// gets x and y coordinate
// ranges [-1, 1] and [-1, 1]
// so how to do the aspect shiz, i don't know
const unsigned int x_int = x*width + width*.5;
const unsigned int y_int = y*width + height*.5;
const unsigned int index = x_int + width * y_int;
if(x_int < width && y_int < height) {
int_array[index]++;
}
}
void Canvas::plot(double x, double y, unsigned int c) {
// same as plot(double x, double y)
// now with color control
const unsigned int x_int = x*width + width*.5;
const unsigned int y_int = y*width + height*.5;
const unsigned int index = x_int + width * y_int + width*height*c;
if(x_int < width && y_int < height) {
int_array[index]++;
}
}
void Canvas::plot(double x, double y, unsigned int c, double intensity) {
// same as plot(double x, double y, unsigned int c)
// but now uses the float array (not yet implemented
}
/*
I/O functions
*/
void Canvas::output() {
LogMoreInfo("Canvas: \n Dimensions: %d x %d x %d\n", width, height, num_colors);
}
void Canvas::output_file(const char * filename){
unsigned int * max_int = new unsigned int[num_colors];
double * power = new double[num_colors];
for ( unsigned int i = 0; i < num_colors; i++ ) {
max_int[i] = 0;
double cumulative = 0;
unsigned int n = 0;
for ( unsigned int j = 0; j < width*height; j++) {
if ( max_int[i] < int_array[j+i*width*height] ) {
max_int[i] = int_array[j+i*width*height];
}
if ( int_array[j+i*width*height] ) {
cumulative += int_array[j+i*width*height];
n++;
}
}
if ( n > 100 ) {
const double average = cumulative / (double)n;
power[i] = -2.5/log(average/(double)max_int[i]);
if ( power[i] < 0 )
power[i] = 1;
} else {
power[i] = 1;
}
if ( n <= 10 ) {
LogInfo("not enough data\n");
}
}
const double vibrancy = 2.0;
double averagePower = 0;
for ( unsigned int i = 0; i < num_colors; i++ ) {
averagePower += power[i];
}
averagePower /= (double)num_colors;
for ( unsigned int i = 0; i < num_colors; i++ ) {
power[i] = vibrancy*power[i] + (1.0 - vibrancy)*averagePower;
}
pngwriter * pngFile = new pngwriter(width, height, 0.0, filename);
pngFile->setcompressionlevel(9);
pngFile->settext("Attractor", "Joshua Moerman", "A awesome attractor", "AwesomeAttractor");
for ( unsigned int x = 0; x < width; x++ ) {
for ( unsigned int y = 0; y < height; y++ ) {
double r = 0.0;
double g = 0.0;
double b = 0.0;
for ( unsigned int c = 0; c < num_colors; c++ ) {
const double norm_value = (double)int_array[x + y*width + c*width*height]/max_int[c];
switch(c){
case 0: {
r = (pow(norm_value, power[c]))*3.5;
break;
}
case 1: {
g = (pow(norm_value, power[c]))*3.0;
break;
}
case 2: {
b = (pow(norm_value, power[c]))*3.0;
break;
}
default:
break;
}
}
//pngwriter clips values for me
pngFile->plot(x, y, r, g, b);
}
}
delete[] max_int;
delete[] power;
LogInfo("Writing %s\n", filename);
std::ofstream file(filename);
if ( !file ) {
LogError("Couldn't write to file");
}
pngFile->close();
LogMoreInfo("File written");
}
void Canvas::output_file(){
char filename[50];
time_t t = time(0);
struct tm* lt = localtime(&t);
int r = rand() % 10;
sprintf(filename, "render/attractor_%04d-%02d-%02d_%02d-%02d-%02d-%01d.png", lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday, lt->tm_hour, lt->tm_min, lt->tm_sec, r);
output_file(filename);
}
void Canvas::output_raw(const char * filename){
std::ofstream outfile (filename, std::ofstream::binary);
outfile.write(reinterpret_cast<char*>(int_array), sizeof(unsigned int)*width*height*num_colors);
}
void Canvas::output_raw(){
char filename[52];
time_t t = time(0);
struct tm* lt = localtime(&t);
int r = rand() % 10;
sprintf(filename, "render/canv%dx%d_%04d-%02d-%02d_%02d-%02d-%02d-%01d.canv", width, height, lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday, lt->tm_hour, lt->tm_min, lt->tm_sec, r);
output_raw(filename);
}
void Canvas::input_raw(const char * filename){
std::ifstream infile(filename, std::ifstream::binary);
if ( ! infile ) {
LogError("Could not read file %s", filename);
return;
}
infile.seekg (0, std::ios::end);
int length = infile.tellg();
infile.seekg (0, std::ios::beg);
LogDebug("Length: %d =? %d\n", length, static_cast<int>(width*height*num_colors*sizeof(unsigned int)));
infile.read (reinterpret_cast<char*>(int_array), sizeof (unsigned int)*width*height*num_colors);
}

44
Canvas.hpp
View File

@ -2,49 +2,21 @@
#define CANVAS_HPP #define CANVAS_HPP
//#include "Vector.hpp"
#include "Attractor.hpp"
#include "Projector.hpp"
// TODO : Canvas class abstraheren (zodat er makkelijk verschillende soorten canvae gemaakt kunnen worden)
class Canvas { class Canvas {
friend class Projector; protected:
unsigned int dim;
unsigned int width;
unsigned int height;
unsigned int num_colors;
unsigned int * size; unsigned int dimension;
Canvas (const unsigned int dimension) : dimension (dimension) {};
unsigned int * int_array;
public: public:
double v; unsigned int getDimension() const { return dimension; };
Canvas(unsigned int width, unsigned int height, unsigned int num_colors = 1);
void clear(); virtual ~Canvas() {};
void plot(double x, double y); virtual void clear() = 0;
void plot(double x, double y, unsigned int c); virtual void plot (const double * normalizedPosition) = 0;
// TODO : make double array in canvas (ander soort canvas) virtual void output_file (const char * filename) const = 0;
// TODO : subpixel sampling (anders soort canvas)
void plot(double x, double y, unsigned int c, double intensity);
void output();
//void output(Vector& point);
void output_file(const char * filename);
void output_file();
void output_raw(const char * filename);
void output_raw();
void input_raw(const char * filename);
}; };
#endif // CANVAS_HPP #endif // CANVAS_HPP

137
canvae/PNG.cpp
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@ -0,0 +1,137 @@
#include "../Logger.hpp"
#include <fstream>
#include <cmath>
#include <cstdlib>
#include <cassert>
#include "../pngwriter/pngwriter.h"
#include "PNG.hpp"
PNG::PNG(unsigned int width, unsigned int height, unsigned int num_colors):
Canvas(2), width(width), height(height), num_colors(num_colors), v(0) {
int_array = new unsigned int[width*height*num_colors];
assert(int_array != NULL);
clear();
LogDebug("New Canvas\n");
}
void PNG::clear() {
for ( unsigned int i = 0; i < width*height*num_colors; i++ ) {
int_array[i] = 0;
}
}
void PNG::plot(double * position) {
const double& x = position[0];
const double& y = position[1];
const unsigned int x_int = x*width + width*.5;
const unsigned int y_int = y*width + height*.5;
const unsigned int index = x_int + width * y_int;
if(x_int < width && y_int < height) {
int_array[index]++;
}
}
/*
I/O functions
*/
void PNG::output_file(const char * filename){
unsigned int * max_int = new unsigned int[num_colors];
double * power = new double[num_colors];
for ( unsigned int i = 0; i < num_colors; i++ ) {
max_int[i] = 0;
double cumulative = 0;
unsigned int n = 0;
for ( unsigned int j = 0; j < width*height; j++) {
if ( max_int[i] < int_array[j+i*width*height] ) {
max_int[i] = int_array[j+i*width*height];
}
if ( int_array[j+i*width*height] ) {
cumulative += int_array[j+i*width*height];
n++;
}
}
if ( n > 100 ) {
const double average = cumulative / (double)n;
power[i] = -2.5/log(average/(double)max_int[i]);
if ( power[i] < 0 )
power[i] = 1;
} else {
power[i] = 1;
}
if ( n <= 10 ) {
LogInfo("not enough data\n");
}
}
const double vibrancy = 2.0;
double averagePower = 0;
for ( unsigned int i = 0; i < num_colors; i++ ) {
averagePower += power[i];
}
averagePower /= (double)num_colors;
for ( unsigned int i = 0; i < num_colors; i++ ) {
power[i] = vibrancy*power[i] + (1.0 - vibrancy)*averagePower;
}
pngwriter * pngFile = new pngwriter(width, height, 0.0, filename);
pngFile->setcompressionlevel(9);
pngFile->settext("Attractor", "Joshua Moerman", "A awesome attractor", "AwesomeAttractor");
for ( unsigned int x = 0; x < width; x++ ) {
for ( unsigned int y = 0; y < height; y++ ) {
double r = 0.0;
double g = 0.0;
double b = 0.0;
for ( unsigned int c = 0; c < num_colors; c++ ) {
const double norm_value = (double)int_array[x + y*width + c*width*height]/max_int[c];
switch(c){
case 0: {
r = (pow(norm_value, power[c]))*3.5;
break;
}
case 1: {
g = (pow(norm_value, power[c]))*3.0;
break;
}
case 2: {
b = (pow(norm_value, power[c]))*3.0;
break;
}
default:
break;
}
}
//pngwriter clips values for me
pngFile->plot(x, y, r, g, b);
}
}
delete[] max_int;
delete[] power;
LogInfo("Writing %s\n", filename);
std::ofstream file(filename);
if ( !file ) {
LogError("Couldn't write to file");
}
pngFile->close();
LogMoreInfo("File written");
}

27
canvae/PNG.hpp
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@ -0,0 +1,27 @@
#ifndef PNG_HPP
#define PNG_HPP
#include "../Canvas.hpp"
class PNG : public Canvas {
unsigned int width;
unsigned int height;
unsigned int num_colors;
unsigned int * int_array;
public:
double v;
PNG (unsigned int width, unsigned int height, unsigned int num_colors = 1);
virtual void clear();
virtual void plot (const double * normalizedPosition);
virtual void output_file (const char * filename) const;
};
#endif // PNG_HPP

58
canvae/Raw.cpp
View File

@ -0,0 +1,58 @@
#include "../Logger.hpp"
#include <fstream>
#include <cmath>
#include <cstdlib>
#include <cassert>
#include <algorithm>
#include <numeric>
#include <functional>
#include "Raw.hpp"
Raw::Raw (const unsigned int dimension, const unsigned int* sizes_):
Canvas(dimension) {
sizes = new unsigned int[dimension];
assert(sizes != NULL);
std::copy(sizes_, sizes_ + dimension, sizes);
sizesMultiplied = new unsigned int[dimension];
assert(sizesMultiplied != NULL);
sizesMultiplied[0] = 1;
for ( unsigned int i = 1; i < dimension; ++i ) {
sizesMultiplied[i] = sizesMultiplied[i-1]*sizes[i-1];
}
arraySize = std::accumulate(sizes, sizes + dimension, multiplies<unsigned int>);
pixelArray = new unsigned int[arraySize];
assert(pixelArray != NULL);
clear();
LogDebug("New RawCanvas of dimension %d\n", dimension);
}
void Raw::clear() {
std::fill_n(pixelArray, arraySize, 0);
}
void Raw::plot(double * position) {
unsigned int index = 0;
for ( unsigned int i = 0; i < dimension; ++i ) {
index += (position[i]*sizes[i] + 0.5*sizes[i])*sizesMultiplied[i];
}
if(index < arraySize) {
int_array[index]++;
}
}
/*
I/O functions
*/
void Raw::output_file(const char * filename){
std::ofstream outfile (filename, std::ofstream::binary);
outfile.write(reinterpret_cast<char*>(int_array), sizeof(unsigned int)*width*height*num_colors);
}

24
canvae/Raw.hpp
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@ -0,0 +1,24 @@
#ifndef RAW_HPP
#define RAW_HPP
#include "../Canvas.hpp"
class Raw : public Canvas {
unsigned int * sizes;
unsigned int sizesMultiplied;
unsigned int * pixelArray;
unsigned int arraySize;
public:
Raw (const unsigned int dimension, const unsigned int* sizes);
virtual void clear();
virtual void plot (const double * normalizedPosition);
virtual void output_file (const char * filename) const;
};
#endif // RAW_HPP

13
main.cpp
View File

@ -13,6 +13,16 @@
int verbose; int verbose;
/*
char filename[50];
time_t t = time(0);
struct tm* lt = localtime(&t);
int r = rand() % 10;
sprintf(filename, "render/attractor_%04d-%02d-%02d_%02d-%02d-%02d-%01d.png", lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday, lt->tm_hour, lt->tm_min, lt->tm_sec, r);
*/
void showHelpText(){ void showHelpText(){
std::cout << "Awesome Attractor, version " << __DATE__ << std::endl; std::cout << "Awesome Attractor, version " << __DATE__ << std::endl;
std::cout << "Usage: AwesomeAttractor [OPTION]... FILE" << std::endl << std::endl; std::cout << "Usage: AwesomeAttractor [OPTION]... FILE" << std::endl << std::endl;
@ -64,7 +74,8 @@ int main(int argc, char *argv[]) {
Attractor myAttractor(attractorFile); Attractor myAttractor(attractorFile);
Projector projection; Projector projection;
Canvas canvas(width, height, 3); unsigned int sizes[] = {128, 128, 128};
Canvas* canvas = new Raw(3, sizes);
projection.canvas = &canvas; projection.canvas = &canvas;
myAttractor.projectors.push_back(&projection); myAttractor.projectors.push_back(&projection);