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103 строки
2.4 KiB
C++
103 строки
2.4 KiB
C++
#include <iostream>
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#include <vector>
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#include "histogram.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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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
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<< "' y='" << baseline
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<< "'>" << text << "</text>";
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}
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void svg_rect(double x, double y, double width, double height,
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string stroke = "red", string fill = "#79553D") {
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cout << "<rect x='" << x
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<< "' y='" << y
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<< "' width='" << width
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<< "' height='" << height
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<< "' stroke='" << stroke
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<< "' fill='" << fill
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<< "' />";
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}
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void
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show_histogram_svg(const vector<size_t>& stolb) {
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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 size_t MAX_ASTERISK = IMAGE_WIDTH - TEXT_WIDTH;
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svg_begin(400, 300);
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size_t maxlen = 0;
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for (size_t len : stolb)
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{
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if (maxlen < len) maxlen = len;
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}
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double top = 0;
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for (size_t bin : stolb) {
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size_t wight = bin;
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if ((maxlen * 10) > MAX_ASTERISK) {
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if (maxlen != bin) wight = MAX_ASTERISK * (static_cast <double> (bin / maxlen));
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else if (maxlen == bin) wight = MAX_ASTERISK;
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}
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const double bin_width = BLOCK_WIDTH * wight;
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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);
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top += BIN_HEIGHT;
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}
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svg_end();
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}
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struct Input {
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vector<double> numbers;
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size_t bucket{};
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size_t number_count{};
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};
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Input
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input_data() {
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Input in;
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cin >> in.number_count;
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cin >> in.bucket;
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in.numbers.resize(in.number_count);
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for (size_t i = 0; i < in.number_count; i++) {
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cin >> in.numbers[i];
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}
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return in;
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}
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int main()
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{
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auto in = input_data();
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auto stolb = make_histogram(in.numbers, in.bucket, in.number_count);
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//show_histogram_text(stolb, in.bucket);
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show_histogram_svg(stolb);
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return 0;
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}
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