#include <iostream> #include <string> #include <vector> #include "svg.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, string fil){ cout << "<rect x = '" << x << "' y = '" << y << "' width = '" << width << "' height = '" << height << "' stroke = '" << stroke << "' fill = '" << fil << "' />"; } void show_histogram_svg(const vector<size_t>& bins) { const auto IMAGE_WIDTH = 400; const auto IMAGE_HEIGHT = 300; const auto IMAGE_LEFT = 20; const auto TEXT_LEFT = 30; const auto TEXT_BASELINE = 20; const auto TEXT_WIDTH = 50; const auto BIN_HEIGHT = 30; const auto BLOCK_WIDTH = 10; svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT); size_t max_count = 0; for (size_t x: bins) { if (x > max_count) { max_count = x; } } double top = 0; for (size_t bin : bins) { const double bin_width = (IMAGE_WIDTH - TEXT_WIDTH) * bin / max_count; const double text_left = bin_width + TEXT_LEFT; svg_rect(IMAGE_LEFT, top, bin_width, BIN_HEIGHT,"red","#ffeeee"); svg_text(text_left, top + TEXT_BASELINE, to_string(bin)); top += BIN_HEIGHT; } svg_end(); }