Вы не можете выбрать более 25 тем
Темы должны начинаться с буквы или цифры, могут содержать дефисы(-) и должны содержать не более 35 символов.
59 строки
1.7 KiB
C++
59 строки
1.7 KiB
C++
#include "svg.h"
|
|
#include <math.h>
|
|
|
|
|
|
using namespace std;
|
|
|
|
void
|
|
svg_begin(double width, double height) {
|
|
cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
|
|
cout << "<svg ";
|
|
cout << "width='" << width << "' ";
|
|
cout << "height='" << height << "' ";
|
|
cout << "viewBox='0 0 " << width << " " << height << "' ";
|
|
cout << "xmlns='http://www.w3.org/2000/svg'>\n";
|
|
}
|
|
|
|
void
|
|
svg_end() {
|
|
cout << "</svg>\n";
|
|
}
|
|
void svg_text(double left, double baseline, string text){
|
|
cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
|
|
}
|
|
|
|
void svg_rect(double x, double y, double width, double height, string stroke, string fill){
|
|
cout << "<rect x='" << x << "' y='" << y << "' width='" << width * 3 << "' height='" << height << "' stroke='" << stroke << "' fill='" << fill << "' />";
|
|
}
|
|
|
|
void
|
|
show_histogram_svg(const vector<size_t>& bins) {
|
|
double max_count;
|
|
max_count = bins[0];
|
|
for (double x : bins) {
|
|
if (x > max_count) {
|
|
max_count = x;
|
|
}
|
|
}
|
|
//10 - (bin * 9) / max_count
|
|
string fill;
|
|
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 BLOCK_WIDTH = 10;
|
|
svg_begin(400, 300);
|
|
double top = 0;
|
|
for (size_t bin : bins) {
|
|
const double bin_width = BLOCK_WIDTH * bin;
|
|
svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
|
|
fill = "#" + to_string(int(10 - (bin * 9) / max_count))+ to_string(int(10 - (bin * 9) / max_count))+ to_string(int(10 - (bin * 9) / max_count));
|
|
svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT,"red", fill);
|
|
top += BIN_HEIGHT;
|
|
}
|
|
svg_end();
|
|
}
|
|
|