#include "svg.h" #include <iostream> #include <vector> #include <string> #include <math.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 fill) { cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke = '" << stroke << "' fill = '" << fill << "' />"; } void pers(int bin, int sum, int& x) { x = round(bin * 100 / sum); } void show_histogram_svg(const vector<int>& 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; svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT); double top = 0; const size_t MAX_ASTERISK = IMAGE_WIDTH - TEXT_WIDTH; int maxb = bins[0], sum= bins[0]; for (size_t j = 1; j < bins.size(); j++) { if (bins[j] > maxb) maxb = bins[j]; sum += bins[j]; } int maxb1 = maxb * BLOCK_WIDTH; for (size_t bin : bins) { double bin_width; if (maxb1 > MAX_ASTERISK) { bin_width = BLOCK_WIDTH * MAX_ASTERISK * (bin / maxb1); } else bin_width = BLOCK_WIDTH * bin; svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin)); svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "red", "#ffeeee"); int x = 0; pers(bin, sum, x); svg_text((TEXT_LEFT+ TEXT_WIDTH+ bin_width), top + TEXT_BASELINE, (to_string(x)+ " % ")); top += BIN_HEIGHT; } svg_end(); }