From 1a71d05e316e91999a607a43c7501e69304aa5d1 Mon Sep 17 00:00:00 2001
From: BykovDA <BykovDA@mpei.ru>
Date: Wed, 30 Apr 2025 16:19:46 +0300
Subject: [PATCH] =?UTF-8?q?=D0=B2=D1=8B=D0=B2=D0=BE=D0=B4=20=D0=B3=D0=B8?=
 =?UTF-8?q?=D1=81=D1=82=D0=BE=D0=B3=D1=80=D0=B0=D0=BC=D0=BC=D1=8B=20=D0=B2?=
 =?UTF-8?q?=20svg=20=D1=84=D0=BE=D1=80=D0=BC=D0=B0=D1=82=D0=B5?=
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---
 svg.cpp | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 svg.cpp

diff --git a/svg.cpp b/svg.cpp
new file mode 100644
index 0000000..30ad08d
--- /dev/null
+++ b/svg.cpp
@@ -0,0 +1,48 @@
+#include "svg.h"
+void
+svg_begin(double width, double height) {
+    std::cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    std::cout << "<svg ";
+    std::cout << "width='" << width << "' ";
+    std::cout << "height='" << height << "' ";
+    std::cout << "viewBox='0 0 " << width << " " << height << "' ";
+    std::cout << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void
+svg_end() {
+    std::cout << "</svg>\n";
+}
+void
+svg_text(double left, double baseline, std::string text) {
+    std::cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
+}
+void
+svg_rect(double x,double y,double width,double height,std::string stroke = "red",std::string fill= "black"){
+    std::cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke='"<<stroke<<"' fill='"<<fill<<"' />";}
+void
+show_histogram_svg(const std::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;
+    const auto COLOUR_1 = "green";
+    const auto COLOUR_2 = "blue";
+    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, std::to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT,COLOUR_1,COLOUR_2);
+        top += BIN_HEIGHT;
+    }
+
+    svg_end();
+}
+
+