code: добавлена функция вывода гистограмы рисунком в цвете

histogram.cpp

@@ -1,6 +1,6 @@
 
 #include "histogram.h"
-const void find_minmax(const std::vector<double>& numbers, double& min, double& max) {
+void find_minmax(const std::vector<double>& numbers, double& min, double& max) {
     min = numbers[0];
     max = numbers[0];
     for (double x : numbers) {

lab3.cbp

@@ -32,13 +32,22 @@
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
 		</Compiler>
-		<Unit filename="histogram.cpp">
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram.h">
 			<Option target="&lt;{~None~}&gt;" />
 		</Unit>
-		<Unit filename="histogram.h">
+		<Unit filename="histogram_internal.h">
 			<Option target="&lt;{~None~}&gt;" />
 		</Unit>
 		<Unit filename="main.cpp" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
+		<Unit filename="text.cpp" />
+		<Unit filename="text.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>

main.cpp

@@ -2,6 +2,7 @@
 #include <vector>
 #include "histogram.h"
 #include "text.h"
+#include"svg.h"
 using namespace std;
 
 struct Input {
@@ -25,7 +26,7 @@ input_data(){
 int main()
 {   auto in = input_data();
     auto bins = make_histogram(in.numbers,in.bin_count);
-    show_histogram(bins,in.bin_count);
+    show_histogram_svg(bins);
 
 }
 

svg.cpp

@@ -0,0 +1,46 @@
+#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_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,string fill){
+    cout<<"<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height <<"' stroke='" << stroke <<"' fill= '"<< fill <<"'/>";
+    }
+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);
+        svg_text(20, 20, to_string(bins[0]));
+    svg_rect(50, 0, bins[0] * 10, 30,"red","#ffeeee");
+    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, "red", "#ffeeee");
+    top += BIN_HEIGHT;
+}
+    svg_end();
+}
+
+
+
+

svg.h

@@ -0,0 +1,7 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+#include<vector>
+#include<iostream>
+void show_histogram_svg(const std::vector<size_t>& bins);
+
+#endif // SVG_H_INCLUDED