text: гистограмма

histogram.cpp

@@ -2,11 +2,30 @@
 
 using namespace std;
 
+void
+find_minmax(const std::vector<double>& numbers, double& Min, double& Max) {
+    Min = numbers[0];
+    Max = numbers[0];
+    for(size_t x : numbers)
+    {
+        if(x < Min)
+        {
+            Min = x;
+        }else
+        {
+            if(x > Max)
+            {
+                Max = x;
+            }
+        }
+    }
+}
+
 std::vector<size_t> make_histogram(std::vector<double> numbers, size_t bin_count)
 {
     std::vector<size_t> bins(bin_count);
     double Min, Max;
-   // find_minmax(numbers, Min, Max);
+    find_minmax(numbers, Min, Max);
     double bin_size = (Max - Min) / bin_count;
     for (double x : numbers)
         {

main.cpp

@@ -2,6 +2,7 @@
 #include <vector>
 #include "text.h"
 #include "histogram.h"
+#include "svg.h"
 using namespace std;
 struct Input {
     std::vector<double> numbers;
@@ -25,6 +26,6 @@ int main()
 {
     auto in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins,in.bin_count);
+    show_histogram_svg(bins);
     return 0;
 }

svg.cpp

@@ -0,0 +1,54 @@
+#include "svg.h"
+#include <iostream>
+#include <vector>
+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='35'>anything you want</text>";
+}
+void
+svg_rect(double x, double y, double width, double height){
+    cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke ='cyan' fill='#fce156' />\n";
+}
+void svg_rect(double x, double y, double width, double height,
+        string stroke = "black", string fill = "black"){
+    cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke ='cyan' fill='#fce166' />\n";
+}
+void
+svg_end() {
+    cout << "</svg>\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;
+    const auto BLOCK_WIDTH = 10;
+    svg_begin(400, 300);
+//    svg_rect(50, 0,bins[0] * 10, 30);
+    svg_text(20, 20, to_string(bins[0]));
+    svg_end();
+
+    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_rect(0, 0, 100, 200, "blue", "#aaffaa");
+}

svg.h

@@ -0,0 +1,10 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+#include <iostream>
+#include <vector>
+
+
+void
+show_histogram_svg(std::vector<size_t> bins);
+
+#endif // SVG_H_INCLUDED