diff --git a/svg.cpp b/svg.cpp new file mode 100644 index 0000000..619aecd --- /dev/null +++ b/svg.cpp @@ -0,0 +1,77 @@ +#include <math.h> +#include <iostream> +#include <conio.h> +#include <vector> +#include <string> +#include "swg.h" + +using namespace std; + +void +svg_begin(double width, double height) +{ + cout << "<?xml version='1.0' encoding='UTF-8'?>\n"; + cout << "<svg "; + cout << "width='" << width << "' "; + cout << "height='" << height << "' "; + cout << "viewBox='0 0 " << width << " " << height << "' "; + cout << "xmlns='http://www.w3.org/2000/svg'>\n"; +} + +void +svg_end() +{ + cout << "</svg>\n"; +} + +void +svg_text(double left, double baseline, string text) +{ + cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>"; +} + +void +svg_rect(double x, double y, double width, double height, string stroke = "black", string fill = "black") +{ + cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke='"<<stroke<<"' fill='"<<fill<<"' />"; + +} + + +void +show_histogram_svg(const vector<size_t>& bins) +{ + const auto IMAGE_WIDTH = 400; + const auto IMAGE_HEIGHT = 300; + const auto TEXT_LEFT = 20; + const auto TEXT_BASELINE = 20; + const auto TEXT_WIDTH = 50; + const auto BIN_HEIGHT = 30; + const auto BLOCK_WIDTH = 10; + const auto BLACK = "black"; + const auto RED = "red"; + const auto MAX_WIDTH = IMAGE_WIDTH-TEXT_WIDTH; + + + svg_begin(IMAGE_WIDTH,IMAGE_HEIGHT); + + double top = 0; + double max_count = bins[0]; + for (size_t i = 0; i < bins.size(); i++) + { + if (max_count<bins[i]) + { + max_count=bins[i]; + } + } + + for (size_t bin : bins) + { + double bin_width = (MAX_WIDTH)*(bin/max_count); + svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin)); + svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, BLACK, RED); + top += BIN_HEIGHT; + } + + svg_end(); +} diff --git a/swg.h b/swg.h new file mode 100644 index 0000000..af68030 --- /dev/null +++ b/swg.h @@ -0,0 +1,8 @@ +#ifndef SVG_H_INCLUDED +#define SVG_H_INCLUDED +#include <vector> + +void +show_histogram_svg(const std::vector<size_t>& bins); + +#endif // SVG_H_INCLUDED