code: формат svg

svg.cpp

@@ -0,0 +1,56 @@
+#include <iostream>
+#include <vector>
+#include "svg.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_text(double left, double baseline, string text) {
+    cout << "<text x='20' y='35'>anything you want</text>";
+}
+
+void
+svg_rect(double x, double y, double width, double height, string stroke, string fill){
+    cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke='" << 'red' << "' fill='" << '48d1cc' << "' />";
+}
+void
+svg_end() {
+    cout << "</svg>\n";
+}
+
+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;
+
+size_t max_count = 0;
+    for (double bin: bins){
+        if (bin > max_count) {
+            max_count = bin;
+        }
+    }
+
+svg_begin(400, 300);
+double top = 0;
+    for (size_t bin : bins) {
+        const double bin_width = (IMAGE_WIDTH - TEXT_WIDTH) * bin / max_count;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "red","48d1cc");
+        top += BIN_HEIGHT;
+    }
+    svg_end();
+}