защита 3 лабы

main.cpp

@@ -1,43 +1,45 @@
 #include <iostream>
 #include <vector>
 #include "histogram.h"
-#include "text.h"
 #include "svg.h"
-#include <curl/curl.h>
 using namespace std;
 
 struct Input {
     vector<double> numbers;
     size_t bin_count;
+    size_t scale_step;
 };
 
-Input input_data(istream& in, bool prompt) {
-    Input inp;
+Input input_data() {
+    Input in;
     size_t number_count;
-    if (prompt){
     cerr << "Enter number count: ";
-    }
     cin >> number_count;
 
-    inp.numbers.resize(number_count);
-    if (prompt){
+    in.numbers.resize(number_count);
     cerr << "Enter numbers: ";
-        }
     for (size_t i = 0; i < number_count; i++) {
-        cin >> inp.numbers[i];
+        cin >> in.numbers[i];
     }
 
-    if (prompt) {
     cerr << "Enter bin count: ";
+    cin >> in.bin_count;
+
+    cerr << "Enter scale step (2-9): ";
+    cin >> in.scale_step;
+    if (in.scale_step < 2 || in.scale_step > 9) {
+        cerr << "ERROR: Invalid scale step\n";
     }
-    cin >> inp.bin_count;
-    return inp;
+
+    return in;
 }
 
 int main() {
-    curl_global_init(CURL_GLOBAL_ALL);
-    auto in = input_data(cin, true);
+    auto in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_svg(bins);
+
+
+    show_histogram_svg(bins, in.scale_step);
+
     return 0;
 }

svg.cpp

@@ -1,38 +1,63 @@
 #include <iostream>
 #include <vector>
 #include <string>
+#include <fstream>
 #include "svg.h"
 
 using namespace std;
 
-void svg_begin(double width, double height) {
-    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
-    cout << "<svg "
+void svg_begin(double width, double height, ofstream& out) {
+    out << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    out << "<svg "
         << "width='" << width << "' "
         << "height='" << height << "' "
         << "viewBox='0 0 " << width << " " << height << "' "
         << "xmlns='http://www.w3.org/2000/svg'>\n";
 }
 
-void svg_end() {
-    cout << "</svg>\n";
+void svg_end(ofstream& out) {
+    out << "</svg>\n";
 }
 
-void svg_text(double left, double baseline, string text) {
-    cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>\n";
+void svg_text(double left, double baseline, string text, ofstream& out) {
+    out << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>\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
+void svg_rect(double x, double y, double width, double height, ofstream& out,
+              string stroke = "black", string fill = "black") {
+    out << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height
         << "' stroke='" << stroke << "' fill='" << fill << "' />\n";
 }
 
-void show_histogram_svg(const vector<size_t>& bins) {
+void draw_scale(double width, double height, double max_width, size_t step, ofstream& out) {
+    const double SCALE_HEIGHT = 30;
+    const double TEXT_OFFSET = 20;
+    const double MARK_HEIGHT = 10;
+
+    double scale_y = height - SCALE_HEIGHT;
+
+    svg_rect(0, scale_y, width, 2, out, "black", "black");
+
+    double step_size = width / step;
+    for (size_t i = 0; i <= step; i++) {
+        double mark_x = i * step_size;
+        svg_rect(mark_x, scale_y - MARK_HEIGHT, 2, MARK_HEIGHT, out, "black", "black");
+        svg_text(mark_x - 5, scale_y + TEXT_OFFSET, to_string(i), out);
+    }
+}
+
+void show_histogram_svg(const vector<size_t>& bins, size_t scale_step) {
     if (bins.empty()) {
         cerr << "Error: Empty bins vector\n";
         return;
     }
 
+    ofstream out("marks.svg");
+    if (!out.is_open()) {
+        cerr << "Error: Cannot open output file\n";
+        return;
+    }
+
     const auto IMAGE_WIDTH = 400;
     const auto IMAGE_HEIGHT = 300;
     const auto TEXT_LEFT = 20;
@@ -41,7 +66,7 @@ void show_histogram_svg(const vector<size_t>& bins) {
     const auto BIN_HEIGHT = 30;
     const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
 
-    svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
+    svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT, out);
 
     double top = 0;
     size_t max_count = bins[0];
@@ -53,10 +78,13 @@ void show_histogram_svg(const vector<size_t>& bins) {
 
     for (size_t bin : bins) {
         const double bin_width = MAX_WIDTH * (static_cast<double>(bin) / max_count);
-        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
-        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", "red");
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin), out);
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, out, "black", "red");
         top += BIN_HEIGHT;
     }
 
-    svg_end();
+    draw_scale(IMAGE_WIDTH, IMAGE_HEIGHT, MAX_WIDTH, scale_step, out);
+
+    svg_end(out);
+    out.close();
 }

svg.h

@@ -2,8 +2,8 @@
 #define SVG_H_INCLUDED
 
 #include <vector>
-#include <cstddef> // Äëÿ size_t
+#include <cstddef>
 
-void show_histogram_svg(const std::vector<size_t>& bins);
+void show_histogram_svg(const std::vector<size_t>& bins, size_t scale_step);
 
 #endif // SVG_H_INCLUDED