From cc853ac0ef6f1447bb6e138b8bb46448986fb4d2 Mon Sep 17 00:00:00 2001
From: "Dmitriy (BerezhkovDA)" <BerezhkovDA@mpei.ru>
Date: Sat, 4 May 2024 18:25:48 +0300
Subject: [PATCH] =?UTF-8?q?=D0=BF=D1=83=D0=BD=D0=BA=D1=82=206:=20=D0=B2?=
 =?UTF-8?q?=D1=8B=D0=B2=D0=BE=D0=B4=20=D0=B3=D0=B8=D1=81=D1=82=D0=BE=D0=B3?=
 =?UTF-8?q?=D1=80=D0=B0=D0=BC=D0=BC=D1=8B=20=D0=B2=20SVG?=
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---
 sem2_lab1/histogram.cpp             |  3 +-
 sem2_lab1/sem2_lab1.cpp             |  3 +-
 sem2_lab1/sem2_lab1.vcxproj         |  2 ++
 sem2_lab1/sem2_lab1.vcxproj.filters |  6 ++++
 sem2_lab1/svg.cpp                   | 52 +++++++++++++++++++++++++++++
 sem2_lab1/svg.h                     |  3 ++
 6 files changed, 67 insertions(+), 2 deletions(-)
 create mode 100644 sem2_lab1/svg.cpp
 create mode 100644 sem2_lab1/svg.h

diff --git a/sem2_lab1/histogram.cpp b/sem2_lab1/histogram.cpp
index 385ccfa..53c0a3c 100644
--- a/sem2_lab1/histogram.cpp
+++ b/sem2_lab1/histogram.cpp
@@ -1,6 +1,7 @@
 #include "histogram.h"
 using namespace std;
-static void find_minmax(const vector<double>& numbers, double& min, double& max) {
+void find_minmax(const vector<double>& numbers, double& min, double& max) {
+    if (numbers.size() == 0) return;
     min = numbers[0];
     max = numbers[0];
     for (double x : numbers)
diff --git a/sem2_lab1/sem2_lab1.cpp b/sem2_lab1/sem2_lab1.cpp
index 005c754..40f3d2e 100644
--- a/sem2_lab1/sem2_lab1.cpp
+++ b/sem2_lab1/sem2_lab1.cpp
@@ -5,6 +5,7 @@
 #include <vector>
 #include "histogram.h"
 #include "show_histogram.h"
+#include "svg.h"
 using namespace std;
 
 struct Input {
@@ -29,7 +30,7 @@ int main()
 {
     auto in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins);
+    show_histogram_svg(bins,in.numbers.size());
     return 0;
 }
 
diff --git a/sem2_lab1/sem2_lab1.vcxproj b/sem2_lab1/sem2_lab1.vcxproj
index 88cb2e8..f8d47d6 100644
--- a/sem2_lab1/sem2_lab1.vcxproj
+++ b/sem2_lab1/sem2_lab1.vcxproj
@@ -130,6 +130,7 @@
     <ClCompile Include="histogram.cpp" />
     <ClCompile Include="sem2_lab1.cpp" />
     <ClCompile Include="show_histogram.cpp" />
+    <ClCompile Include="svg.cpp" />
   </ItemGroup>
   <ItemGroup>
     <None Include=".gitignore" />
@@ -138,6 +139,7 @@
     <ClInclude Include="histogram.h" />
     <ClInclude Include="histogram_internal.h" />
     <ClInclude Include="show_histogram.h" />
+    <ClInclude Include="svg.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/sem2_lab1/sem2_lab1.vcxproj.filters b/sem2_lab1/sem2_lab1.vcxproj.filters
index e60da40..46a52d6 100644
--- a/sem2_lab1/sem2_lab1.vcxproj.filters
+++ b/sem2_lab1/sem2_lab1.vcxproj.filters
@@ -24,6 +24,9 @@
     <ClCompile Include="show_histogram.cpp">
       <Filter>Исходные файлы</Filter>
     </ClCompile>
+    <ClCompile Include="svg.cpp">
+      <Filter>Исходные файлы</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include=".gitignore" />
@@ -38,5 +41,8 @@
     <ClInclude Include="histogram_internal.h">
       <Filter>Файлы заголовков</Filter>
     </ClInclude>
+    <ClInclude Include="svg.h">
+      <Filter>Файлы заголовков</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/sem2_lab1/svg.cpp b/sem2_lab1/svg.cpp
new file mode 100644
index 0000000..2d81807
--- /dev/null
+++ b/sem2_lab1/svg.cpp
@@ -0,0 +1,52 @@
+#include <iostream>
+#include <vector>
+#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 << "' ";
+    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='" << left << "' y='" << baseline<< "'>" << text << "</text>" << endl;
+}
+void svg_end() {
+    cout << "</svg>\n";
+}
+void svg_rect(double x, double y, double width, double height,string stroke = "black", string fill = "green")
+{
+    cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' fill='" << fill << "' stroke='" << stroke << "' />";
+}
+void show_histogram_svg(const vector<double>& bins, int number_cnt) {
+    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;
+    string colors[] {"#0000ff","#00ff00","#ff0000" ,"#00ffff" ,"#ff00ff" ,"#ffff00","#ffffff","#aaaaaa" };
+    svg_begin(400, 300);
+    double top = 0;
+    int color_ptr=0;
+    double max = bins[0];
+    for (size_t bin : bins) if (bin > max) max = bin;
+    cout << max;
+    double k = (IMAGE_WIDTH - TEXT_WIDTH) / max;
+    for (size_t bin : bins) {
+        const double bin_width = k * bin;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT,"black",colors[color_ptr]);
+        top += BIN_HEIGHT;
+        color_ptr++;
+        if (color_ptr >= colors->size()) color_ptr = 0;
+    }
+
+    svg_end();
+
+}
+
diff --git a/sem2_lab1/svg.h b/sem2_lab1/svg.h
new file mode 100644
index 0000000..d8705e4
--- /dev/null
+++ b/sem2_lab1/svg.h
@@ -0,0 +1,3 @@
+#pragma once
+#include <vector>
+void show_histogram_svg(const std::vector<double>& bins,int number_cnt);
\ No newline at end of file