code: пункт 5 формат SVG

main.cpp

@@ -2,6 +2,7 @@
 #include <vector>
 #include "histogram.h"
 #include "text.h"
+#include "svg.h"
 
 using namespace std;
 
@@ -36,6 +37,7 @@ int main(){
     Input in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_text(bins, in.bin_count);
+    show_histogram_svg(bins);
     return 0;
 }
 

svg.cpp

@@ -0,0 +1,62 @@
+#include "svg.h"
+#include <iostream>
+
+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) {
+    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;
+    double top = 0;
+    const size_t MAX_ASTERISK = IMAGE_WIDTH - TEXT_WIDTH;
+    svg_begin(IMAGE_WIDTH,IMAGE_HEIGHT);
+    double top = 0;
+
+    size_t maxbin=bins[0];
+    for (size_t i=0; i < bins.size(); i++){
+        if (maxbin < bins[i]){
+            maxbin=bins[i];
+        }
+    }
+
+    if (maxbin<=76){
+        for (size_t i=0; i < bins.size(); i++) {
+            double bin_width = BLOCK_WIDTH * bins[i];
+            svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bins[i]));
+            svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
+            top += BIN_HEIGHT;
+        }
+        svg_end();
+    } else {
+        for (size_t i=0; i < bins.size(); i++) {
+            double bin_width= MAX_ASTERISK * (static_cast<double>(bins[i]) / maxbin);
+            svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bins[i]));
+            svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
+            top += BIN_HEIGHT;
+        }
+    }
+    svg_end();
+}
+

svg.h

@@ -0,0 +1,10 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+
+#include <string>
+#include <vector>
+
+void show_histogram_svg(const std::vector<size_t>& bins);
+
+
+#endif // SVG_H_INCLUDED