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102 строки
2.7 KiB
C++
102 строки
2.7 KiB
C++
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#include <math.h>
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#include <iostream>
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#include <conio.h>
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#include <vector>
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#include <string>
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#include "svg.h"
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using namespace std;
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void
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svg_begin(double width, double height)
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{
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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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{
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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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{
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cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
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}
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void
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svg_rect(double x, double y, double width, double height, string stroke = "black", string fill = "black")
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{
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cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke='"<<stroke<<"' fill='"<<fill<<"' />";
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}
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void
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show_histogram_svg(const vector<size_t>& bins, const std::vector<double>& borders, size_t bin_count, string filling) {
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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 BLOCK_WIDTH = 10;
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const auto MAX_WIDTH = IMAGE_WIDTH-TEXT_WIDTH;
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vector <string> colors = {"red", "blue", "gold", "lime", "aqua", "green", "orange"};
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size_t border = 0;
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size_t number_of_blocks;
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svg_begin(IMAGE_WIDTH,IMAGE_HEIGHT);
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size_t max_bin = *max_element(bins.begin(), bins.end());
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double top = 0;
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size_t paint_swicher = 0;
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string color;
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double max_count = bins[0];
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for (size_t i = 0; i < bins.size(); i++)
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{
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if (max_count<bins[i])
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{
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max_count=bins[i];
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}
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}
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for (size_t bin : bins)
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{
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if (filling != "base"){
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color = filling;
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}
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else{
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color = colors[paint_swicher];
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}
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number_of_blocks = bin;
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if ((max_bin * BLOCK_WIDTH) > (IMAGE_WIDTH - TEXT_WIDTH)){
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number_of_blocks = ((IMAGE_WIDTH - TEXT_WIDTH)/10) * (static_cast<double>(bin) / max_bin);
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}
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const double bin_width = BLOCK_WIDTH * number_of_blocks;
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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, "black", color);
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paint_swicher += 1;
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if (paint_swicher > 6){
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paint_swicher = 0;
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}
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if (border < bin_count - 1){
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top += BIN_HEIGHT;
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svg_text(TEXT_LEFT / 2, top + TEXT_BASELINE , to_string(borders[border]));
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border += 1;
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top += BIN_HEIGHT;
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}
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}
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svg_end();
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}
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