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@ -10,236 +10,236 @@ |
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Canvas::Canvas(unsigned int width, unsigned int height, unsigned int num_colors): |
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dim(2), width(width), height(height), num_colors(num_colors), v(0) { |
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dim(2), width(width), height(height), num_colors(num_colors), v(0) { |
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int_array = new unsigned int[width*height*num_colors]; |
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size = new unsigned int[2]; |
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size[0] = width; |
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size[1] = height; |
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int_array = new unsigned int[width*height*num_colors]; |
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size = new unsigned int[2]; |
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size[0] = width; |
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size[1] = height; |
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assert(int_array != NULL); |
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assert(int_array != NULL); |
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clear(); |
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clear(); |
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#ifdef HARDDEBUG |
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cout << "New canvas" << endl; |
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cout << "New canvas" << endl; |
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#endif |
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} |
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void Canvas::clear() { |
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for ( unsigned int i = 0; i < width*height*num_colors; i++ ) { |
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int_array[i] = 0; |
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} |
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for ( unsigned int i = 0; i < width*height*num_colors; i++ ) { |
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int_array[i] = 0; |
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} |
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} |
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//void Canvas::update_viewwindow() {
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//
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// //width and height of attractor
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// const double dx = xmax - xmin;
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// const double dy = ymax - ymin;
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// //width and height of attractor
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// const double dx = xmax - xmin;
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// const double dy = ymax - ymin;
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//
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// //fix aspect ratio
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// if ( dx > dy * ((float)width / height) ) {
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// const double height2 = dx * ((float)height / width);
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// const double middle = 0.5 * (ymax + ymin);
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// ymax = middle + 0.5 * height2;
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// ymin = middle - 0.5 * height2;
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// //fix aspect ratio
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// if ( dx > dy * ((float)width / height) ) {
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// const double height2 = dx * ((float)height / width);
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// const double middle = 0.5 * (ymax + ymin);
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// ymax = middle + 0.5 * height2;
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// ymin = middle - 0.5 * height2;
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//
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// } else {
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// const double width2 = dy * ((float)width / height);
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// const double middle = 0.5 * (xmax + xmin);
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// xmax = middle + 0.5 * width2;
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// xmin = middle - 0.5 * width2;
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// }
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// } else {
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// const double width2 = dy * ((float)width / height);
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// const double middle = 0.5 * (xmax + xmin);
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// xmax = middle + 0.5 * width2;
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// xmin = middle - 0.5 * width2;
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// }
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//
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// //add a 4% marge
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// xmin -= 0.02 * dx;
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// xmax += 0.02 * dx;
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// ymin -= 0.02 * dy;
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// ymax += 0.02 * dy;
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// //add a 4% marge
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// xmin -= 0.02 * dx;
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// xmax += 0.02 * dx;
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// ymin -= 0.02 * dy;
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// ymax += 0.02 * dy;
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//
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// //constants for speed
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// constant1 = width / (xmax - xmin);
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// constant2 = height / (ymax - ymin);
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// //constants for speed
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// constant1 = width / (xmax - xmin);
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// constant2 = height / (ymax - ymin);
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//}
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void Canvas::plot(double x, double y) { |
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// gets x and y coordinate
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// ranges [-1, 1] and [-1, 1]
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// so how to do the aspect shiz, i don't know
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const unsigned int x_int = x*width + width*.5; |
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const unsigned int y_int = y*width + height*.5; |
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const unsigned int index = x_int + width * y_int; |
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if(x_int < width && y_int < height) { |
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int_array[index]++; |
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} |
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// gets x and y coordinate
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// ranges [-1, 1] and [-1, 1]
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// so how to do the aspect shiz, i don't know
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const unsigned int x_int = x*width + width*.5; |
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const unsigned int y_int = y*width + height*.5; |
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const unsigned int index = x_int + width * y_int; |
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if(x_int < width && y_int < height) { |
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int_array[index]++; |
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} |
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} |
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void Canvas::plot(double x, double y, unsigned int c) { |
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// same as plot(double x, double y)
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// now with color control
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const unsigned int x_int = x*width + width*.5; |
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const unsigned int y_int = y*width + height*.5; |
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const unsigned int index = x_int + width * y_int + width*height*c; |
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if(x_int < width && y_int < height) { |
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int_array[index]++; |
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} |
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// same as plot(double x, double y)
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// now with color control
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const unsigned int x_int = x*width + width*.5; |
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const unsigned int y_int = y*width + height*.5; |
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const unsigned int index = x_int + width * y_int + width*height*c; |
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if(x_int < width && y_int < height) { |
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int_array[index]++; |
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} |
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} |
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void Canvas::plot(double x, double y, unsigned int c, double intensity) { |
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// same as plot(double x, double y, unsigned int c)
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// but now uses the float array (not yet implemented
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// same as plot(double x, double y, unsigned int c)
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// but now uses the float array (not yet implemented
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} |
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/*
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I/O functions |
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I/O functions |
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*/ |
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void Canvas::output() { |
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std::cout << "Canvas: " << std::endl; |
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std::cout << "Dimensions: " << width << " x " << height << " x " << num_colors << std::endl; |
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std::cout << "Dimensions: " << width << " x " << height << " x " << num_colors << std::endl; |
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} |
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void Canvas::output_file(const char * filename){ |
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unsigned int * max_int = new unsigned int[num_colors]; |
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double * power = new double[num_colors]; |
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for ( unsigned int i = 0; i < num_colors; i++ ) { |
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max_int[i] = 0; |
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double cumulative = 0; |
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unsigned int n = 0; |
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for ( unsigned int j = 0; j < width*height; j++) { |
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if ( max_int[i] < int_array[j+i*width*height] ) { |
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max_int[i] = int_array[j+i*width*height]; |
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} |
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if ( int_array[j+i*width*height] ) { |
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cumulative += int_array[j+i*width*height]; |
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n++; |
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} |
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} |
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if ( n > 100 ) { |
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const double average = cumulative / (double)n; |
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power[i] = -2.5/log(average/(double)max_int[i]); |
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if ( power[i] < 0 ) |
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power[i] = 1; |
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} else { |
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power[i] = 1; |
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} |
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if ( n <= 10 ) { |
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std::cout << "not enough data" << std::endl; |
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} |
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} |
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const double vibrancy = 2.0; |
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double averagePower = 0; |
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for ( unsigned int i = 0; i < num_colors; i++ ) { |
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averagePower += power[i]; |
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} |
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averagePower /= (double)num_colors; |
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for ( unsigned int i = 0; i < num_colors; i++ ) { |
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power[i] = vibrancy*power[i] + (1.0 - vibrancy)*averagePower; |
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} |
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pngwriter * pngFile = new pngwriter(width, height, 0.0, filename); |
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pngFile->setcompressionlevel(9); |
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pngFile->settext("Attractor", "Joshua Moerman", "A awesome attractor", "AwesomeAttractor"); |
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for ( unsigned int x = 0; x < width; x++ ) { |
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for ( unsigned int y = 0; y < height; y++ ) { |
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double r = 0.0; |
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double g = 0.0; |
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double b = 0.0; |
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for ( unsigned int c = 0; c < num_colors; c++ ) { |
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const double norm_value = (double)int_array[x + y*width + c*width*height]/max_int[c]; |
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switch(c){ |
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case 0: { |
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r = (pow(norm_value, power[c]))*3.5; |
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break; |
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} |
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case 1: { |
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g = (pow(norm_value, power[c]))*3.0; |
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break; |
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} |
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case 2: { |
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b = (pow(norm_value, power[c]))*3.0; |
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break; |
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} |
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default: |
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break; |
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} |
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} |
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//pngwriter clips values for me
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pngFile->plot(x, y, r, g, b); |
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} |
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} |
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delete[] max_int; |
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delete[] power; |
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std::cout << "ready for writing file i suppose: " << filename << std::endl; |
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std::ofstream file(filename); |
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if ( !file ) { |
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std::cout << "jij hebt pech, geen png voor jou" << std::endl; |
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} |
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std::cout << filename << std::endl; |
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pngFile->close(); |
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unsigned int * max_int = new unsigned int[num_colors]; |
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double * power = new double[num_colors]; |
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for ( unsigned int i = 0; i < num_colors; i++ ) { |
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max_int[i] = 0; |
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double cumulative = 0; |
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unsigned int n = 0; |
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for ( unsigned int j = 0; j < width*height; j++) { |
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if ( max_int[i] < int_array[j+i*width*height] ) { |
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max_int[i] = int_array[j+i*width*height]; |
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} |
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if ( int_array[j+i*width*height] ) { |
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cumulative += int_array[j+i*width*height]; |
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n++; |
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} |
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} |
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if ( n > 100 ) { |
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const double average = cumulative / (double)n; |
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power[i] = -2.5/log(average/(double)max_int[i]); |
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if ( power[i] < 0 ) |
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power[i] = 1; |
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} else { |
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power[i] = 1; |
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} |
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if ( n <= 10 ) { |
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std::cout << "not enough data" << std::endl; |
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} |
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} |
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const double vibrancy = 2.0; |
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double averagePower = 0; |
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for ( unsigned int i = 0; i < num_colors; i++ ) { |
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averagePower += power[i]; |
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} |
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averagePower /= (double)num_colors; |
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for ( unsigned int i = 0; i < num_colors; i++ ) { |
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power[i] = vibrancy*power[i] + (1.0 - vibrancy)*averagePower; |
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} |
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pngwriter * pngFile = new pngwriter(width, height, 0.0, filename); |
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pngFile->setcompressionlevel(9); |
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pngFile->settext("Attractor", "Joshua Moerman", "A awesome attractor", "AwesomeAttractor"); |
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for ( unsigned int x = 0; x < width; x++ ) { |
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for ( unsigned int y = 0; y < height; y++ ) { |
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double r = 0.0; |
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double g = 0.0; |
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double b = 0.0; |
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for ( unsigned int c = 0; c < num_colors; c++ ) { |
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const double norm_value = (double)int_array[x + y*width + c*width*height]/max_int[c]; |
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switch(c){ |
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case 0: { |
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r = (pow(norm_value, power[c]))*3.5; |
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break; |
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} |
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case 1: { |
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g = (pow(norm_value, power[c]))*3.0; |
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break; |
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} |
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case 2: { |
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b = (pow(norm_value, power[c]))*3.0; |
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break; |
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} |
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default: |
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break; |
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} |
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} |
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//pngwriter clips values for me
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pngFile->plot(x, y, r, g, b); |
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} |
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} |
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delete[] max_int; |
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delete[] power; |
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std::cout << "ready for writing file i suppose: " << filename << std::endl; |
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std::ofstream file(filename); |
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if ( !file ) { |
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std::cout << "jij hebt pech, geen png voor jou" << std::endl; |
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} |
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std::cout << filename << std::endl; |
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pngFile->close(); |
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} |
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void Canvas::output_file(){ |
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char filename[50]; |
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time_t t = time(0); |
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struct tm* lt = localtime(&t); |
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int r = rand() % 10; |
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char filename[50]; |
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time_t t = time(0); |
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struct tm* lt = localtime(&t); |
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int r = rand() % 10; |
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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); |
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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); |
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output_file(filename); |
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output_file(filename); |
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} |
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void Canvas::output_raw(const char * filename){ |
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std::ofstream outfile (filename, std::ofstream::binary); |
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std::ofstream outfile (filename, std::ofstream::binary); |
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outfile.write(reinterpret_cast<char*>(int_array), sizeof(unsigned int)*width*height*num_colors); |
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outfile.write(reinterpret_cast<char*>(int_array), sizeof(unsigned int)*width*height*num_colors); |
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} |
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void Canvas::output_raw(){ |
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char filename[52]; |
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time_t t = time(0); |
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struct tm* lt = localtime(&t); |
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int r = rand() % 10; |
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char filename[52]; |
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time_t t = time(0); |
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struct tm* lt = localtime(&t); |
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int r = rand() % 10; |
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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); |
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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); |
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output_raw(filename); |
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output_raw(filename); |
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} |
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void Canvas::input_raw(const char * filename){ |
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std::ifstream infile(filename, std::ifstream::binary); |
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std::ifstream infile(filename, std::ifstream::binary); |
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if ( ! infile ) { |
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std::cout << "poep" << std::endl; |
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return; |
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} |
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if ( ! infile ) { |
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std::cout << "poep" << std::endl; |
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return; |
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} |
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infile.seekg (0, std::ios::end); |
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int length = infile.tellg(); |
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infile.seekg (0, std::ios::beg); |
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infile.seekg (0, std::ios::end); |
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int length = infile.tellg(); |
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infile.seekg (0, std::ios::beg); |
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std::cout << "length: " << length << " =? " << static_cast<int>(width*height*num_colors*sizeof(unsigned int)) << std::endl; |
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std::cout << "length: " << length << " =? " << static_cast<int>(width*height*num_colors*sizeof(unsigned int)) << std::endl; |
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infile.read (reinterpret_cast<char*>(int_array), sizeof (unsigned int)*width*height*num_colors); |
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infile.read (reinterpret_cast<char*>(int_array), sizeof (unsigned int)*width*height*num_colors); |
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} |
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Joshua Moerman
14 years ago