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105 строки
2.6 KiB
C++
105 строки
2.6 KiB
C++
#include <iostream>
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#include <vector>
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#include <string>
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#include <random>
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#include <sstream>
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#include <iomanip>
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#include "text.h"
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#include "histogram.h"
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#include "histogram_internal.h"
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using namespace std;
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std::string getRandomHexColor() {
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random_device rd; // Èñòî÷íèê ñëó÷àéíûõ ÷èñåë
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mt19937 gen(rd()); // Ãåíåðàòîð Mersenne Twister
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std::uniform_int_distribution<> dis(0, 255); // Ðàâíîìåðíîå ðàñïðåäåëåíèå [0, 255]
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int r = dis(gen); // Êðàñíûé
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int g = dis(gen); // Çåëåíûé
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int b = dis(gen); // Ñèíèé
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// Ôîðìèðóåì HEX-ñòðîêó
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std::stringstream hexStream;
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hexStream << "#"
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<< std::hex << std::setw(2) << std::setfill('0') << r
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<< std::hex << std::setw(2) << std::setfill('0') << g
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<< std::hex << std::setw(2) << std::setfill('0') << b;
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return hexStream.str();
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}
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void
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svg_begin(double width, double height) {
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cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
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cout << "<svg ";
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cout << "width='" << width << "' ";
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cout << "height='" << height << "' ";
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cout << "viewBox='0 0 " << width << " " << height << "' ";
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cout << "xmlns='http://www.w3.org/2000/svg'>\n";
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}
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void
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svg_end() {
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cout << "</svg>\n";
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}
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void
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svg_text(double left, double baseline, string text) {
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cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>" << endl;
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}
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void svg_rect(double x, double y, double width, double height, string stroke = "black", string fill = "black") {
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cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke='" << stroke << "' fill='" << fill << "' />" << endl;
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}
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void
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show_histogram_svg(const vector<size_t> bins) {
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auto mm = *(max_element(bins.begin(), bins.end()));
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const auto IMAGE_WIDTH = 400;
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const auto IMAGE_HEIGHT = 300;
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const auto TEXT_LEFT = 20;
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const auto TEXT_BASELINE = 20;
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const auto TEXT_WIDTH = 50;
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const auto BIN_HEIGHT = 30;
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const auto PROCENT_SPACE = 50;
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auto BLOCK_WIDTH = 10;
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auto sum_bins = 0;
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BLOCK_WIDTH = (IMAGE_WIDTH - TEXT_WIDTH) / mm;
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svg_begin(600, 400);
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for (size_t Elem : bins) {
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sum_bins += Elem;
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}
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double top = 0;
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for (size_t bin : bins) {
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const double bin_width = BLOCK_WIDTH * bin;
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double PROCENT = double(bin) / double(sum_bins);
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PROCENT = round(PROCENT * 100) / 100 ;
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
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svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "grey", getRandomHexColor());
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svg_text(IMAGE_WIDTH + PROCENT_SPACE, top + TEXT_BASELINE, to_string(int(PROCENT * 100)) + "%");
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top += BIN_HEIGHT;
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}
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//svg_begin(400, 300);
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//svg_text(20, 35, to_string(bins[0]));
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//svg_rect(50, 0, bins[0] * 10, 30, "purple", "red");
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svg_end();
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}
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