From 1c660f937854d40cd275a6e251e75d5f6abf350d Mon Sep 17 00:00:00 2001
From: TabolinIA <TabolinIA@mpei.ru>
Date: Wed, 22 May 2024 01:29:51 +0300
Subject: [PATCH] =?UTF-8?q?code:=20=D0=B4=D0=BE=D0=B4=D0=B5=D0=BB=D0=B0?=
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---
 svg.cpp | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 svg.h   |  6 ++++++
 2 files changed, 59 insertions(+)
 create mode 100644 svg.cpp
 create mode 100644 svg.h

diff --git a/svg.cpp b/svg.cpp
new file mode 100644
index 0000000..0727984
--- /dev/null
+++ b/svg.cpp
@@ -0,0 +1,53 @@
+#include <vector>
+#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 = "black", string fill = "red"){
+    cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << " ' stroke='" << stroke << "' fill='" << fill << "' ></rect>";
+}
+
+
+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;
+
+    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));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
+        top += BIN_HEIGHT;
+    }
+    svg_end();
+}
+
diff --git a/svg.h b/svg.h
new file mode 100644
index 0000000..adca9a4
--- /dev/null
+++ b/svg.h
@@ -0,0 +1,6 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+void
+show_histogram_svg(const std::vector<size_t>& bins);
+
+#endif // SVG_H_INCLUDED