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89 строки
2.5 KiB
C++

#include <iostream>
#include <vector>
#include <string>
#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){
cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke ='cyan' fill='#fce166' />\n";
}
void
svg_procent(double left_procent, double baseline, string text) {
cout << "<text x='"<< left_procent << "' y='"<< baseline << "'> "<< text <<"% </text>";
}
void
show_histogram_svg(const vector<size_t>& bins, const vector<size_t>& procent) {
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 double SCALE = IMAGE_WIDTH - TEXT_WIDTH;
svg_begin(800, 300);
double max_count = 0;
for (double x: bins) {
if (x > max_count) {
max_count = x;
}
}
double top = 0;
if ((max_count*BLOCK_WIDTH)>SCALE){
for (size_t i = 0; i < bins.size(); i++) {
const double bin_width = SCALE * ( bins[i] / max_count);
const auto TEXT_LEFT_PROCENT = SCALE+TEXT_WIDTH+20;
svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bins[i]));
svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
svg_procent(TEXT_LEFT_PROCENT, top + TEXT_BASELINE, to_string(procent[i]));
top += BIN_HEIGHT;
cout << endl;
cout << bin_width;
}
}
else{
for (size_t i = 0; i < bins.size(); i++) {
const double bin_width = BLOCK_WIDTH * bins[i];
const auto TEXT_LEFT_PROCENT = (max_count * BLOCK_WIDTH)+TEXT_WIDTH+20;
svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bins[i]));
svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
svg_procent(TEXT_LEFT_PROCENT, top + TEXT_BASELINE, to_string(procent[i]));
top += BIN_HEIGHT;
cout << endl;
cout << bin_width;
}
}
svg_end();
}