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61 строка
2.1 KiB
C++
61 строка
2.1 KiB
C++
#include <iostream>
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#include <vector>
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#include <string>
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using namespace std;
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void 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 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_end() {
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cout << "</svg>\n";
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}
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void svg_rect(double x, double y, double width, double height,string stroke = "black", string fill = "green")
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{
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cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' fill='" << fill << "' stroke='" << stroke << "' />";
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}
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int GetProc(int number_cnt, int bin)
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{
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if (number_cnt <= 0) return 0;
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if (bin < 0) return 0;
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return 100.0 * bin / number_cnt;
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}
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void show_histogram_svg(const vector<double>& bins, int number_cnt) {
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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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string colors[] {"#0000ff","#00ff00","#ff0000" ,"#00ffff" ,"#ff00ff" ,"#ffff00","#ffffff","#aaaaaa" };
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svg_begin(400, 300);
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double top = 0;
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int color_ptr=0;
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double max = bins[0];
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for (size_t bin : bins) if (bin > max) max = bin;
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cout << max;
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double k = (IMAGE_WIDTH - TEXT_WIDTH*2) / max;
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for (size_t bin : bins) {
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const double bin_width = k * bin;
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
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svg_text(IMAGE_WIDTH - TEXT_WIDTH + TEXT_LEFT, top + TEXT_BASELINE, to_string(GetProc(number_cnt,bin)) + "%");
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svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT,"black",colors[color_ptr]);
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top += BIN_HEIGHT;
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color_ptr++;
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if (color_ptr >= colors->size()) color_ptr = 0;
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}
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svg_end();
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}
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