Вы не можете выбрать более 25 тем
Темы должны начинаться с буквы или цифры, могут содержать дефисы(-) и должны содержать не более 35 символов.
67 строки
2.1 KiB
C++
67 строки
2.1 KiB
C++
#include "svg.h"
|
|
#include <iostream>
|
|
#include <numeric>
|
|
using namespace std;
|
|
|
|
void svg_begin(double width, double height) {
|
|
cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
|
|
cout << "<svg width='" << width << "' height='" << height << "' "
|
|
<< "viewBox='0 0 " << width << " " << height << "' "
|
|
<< "xmlns='http://www.w3.org/2000/svg'>\n";
|
|
|
|
// Ñòèëè äëÿ SVG
|
|
cout << "<style>\n"
|
|
<< " .bar-green { fill: #4CAF50; stroke: #388E3C; stroke-width: 1; }\n"
|
|
<< " .bar-red { fill: #F44336; stroke: #D32F2F; stroke-width: 1; }\n"
|
|
<< " .text { font: 12px sans-serif; fill: #333; }\n"
|
|
<< "</style>\n";
|
|
}
|
|
|
|
void svg_end() {
|
|
cout << "</svg>\n";
|
|
}
|
|
|
|
void svg_text(double left, double baseline, string text) {
|
|
cout << "<text class='text' x='" << left << "' y='" << baseline << "'>"
|
|
<< text << "</text>";
|
|
}
|
|
|
|
void svg_rect(double x, double y, double width, double height, bool is_above_average) {
|
|
string bar_class = is_above_average ? "bar-red" : "bar-green";
|
|
cout << "<rect class='" << bar_class << "' x='" << x << "' y='" << y
|
|
<< "' width='" << width << "' height='" << height << "' />";
|
|
}
|
|
|
|
void show_histogram_svg(const vector<size_t>& bins) {
|
|
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 MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
|
|
|
|
svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
|
|
|
|
double top = 0;
|
|
size_t max_count = 0;
|
|
for (size_t count : bins) {
|
|
if (count > max_count) max_count = count;
|
|
}
|
|
|
|
// Âû÷èñëÿåì ñðåäíþþ âûñîòó ñòîëáöà
|
|
double average_height = 0;
|
|
if (!bins.empty()) {
|
|
average_height = accumulate(bins.begin(), bins.end(), 0.0) / bins.size();
|
|
}
|
|
|
|
for (size_t bin : bins) {
|
|
const double bin_width = MAX_WIDTH * (static_cast<double>(bin) / max_count);
|
|
svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
|
|
svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, bin > average_height);
|
|
top += BIN_HEIGHT;
|
|
}
|
|
|
|
svg_end();
|
|
}
|