From 497d896f6f0ba566def5796b3bed03ea59fa98f5 Mon Sep 17 00:00:00 2001
From: MokeevNV <MokeevNV@mpei.ru>
Date: Thu, 1 May 2025 22:47:27 +0300
Subject: [PATCH] =?UTF-8?q?code:=205.svg(=D1=84=D0=B0=D0=B9=D0=BB=20=D1=80?=
 =?UTF-8?q?=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=B0=D1=86=D0=B8=D0=B8)?=
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---
 svg.cpp | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 svg.cpp

diff --git a/svg.cpp b/svg.cpp
new file mode 100644
index 0000000..149f2cd
--- /dev/null
+++ b/svg.cpp
@@ -0,0 +1,55 @@
+#include "svg.h"
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+void svg_begin(double width, double height) {
+    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    cout << "<svg ";
+    cout << "width='" << width << "' 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, const string& text) {
+    cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>\n";
+}
+
+void svg_rect(double x, double y, double width, double height, const string& stroke, const string& fill) {
+    cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke='" << stroke << "' fill='" << fill << "' />\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;
+
+    size_t max_count = 0;
+    for (size_t count : bins) {
+        if (count > max_count) {
+            max_count = count;
+        }
+    }
+
+    double BLOCK_WIDTH = (IMAGE_WIDTH - TEXT_WIDTH) / static_cast<double>(max_count);
+
+    svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
+
+    double top = 0;
+    for (size_t bin : bins) {
+        double bin_width = BLOCK_WIDTH * bin;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", "#aaaaaa");
+        top += BIN_HEIGHT;
+    }
+
+    svg_end();
+}