From 7053e484577f9478e87dd72a050b8c166b26d35f Mon Sep 17 00:00:00 2001
From: VeretennikovMA <VeretennikovMA@mpei.ru>
Date: Wed, 8 May 2024 00:02:59 +0300
Subject: [PATCH] 4. SVG
---
main.cpp | 2 +-
svg.cpp | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
svg.h | 15 +++++++++++++
3 files changed, 82 insertions(+), 1 deletion(-)
create mode 100644 svg.cpp
create mode 100644 svg.h
diff --git a/main.cpp b/main.cpp
index 9a5a050..af98169 100644
--- a/main.cpp
+++ b/main.cpp
@@ -31,5 +31,5 @@ int
main() {
auto in = input_data();
auto bins = make_histogram(in.numbers, in.bin_count);
- show_histogram_text(bins);
+ show_histogram_svg(bins);
}
diff --git a/svg.cpp b/svg.cpp
new file mode 100644
index 0000000..de51dd1
--- /dev/null
+++ b/svg.cpp
@@ -0,0 +1,66 @@
+#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);
+ double top = 0;
+
+ size_t maxbin = 0;
+ for (size_t bin : bins){
+ if (bin > maxbin){
+ maxbin = bin;
+ }
+ }
+ if (maxbin * BLOCK_WIDTH <= IMAGE_WIDTH - TEXT_WIDTH){
+ 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();
+ }
+ else{
+ float kf = static_cast<double>(IMAGE_WIDTH - TEXT_WIDTH) / (maxbin * BLOCK_WIDTH);
+ for (size_t bin : bins) {
+ const double bin_width = BLOCK_WIDTH * bin * kf;
+ 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..433e877
--- /dev/null
+++ b/svg.h
@@ -0,0 +1,15 @@
+#pragma once
+#include <iostream>
+#include <vector>
+#include<string>
+
+void
+svg_begin(double width, double height);
+void
+svg_end();
+void
+svg_text(double left, double baseline, std::string text);
+void
+svg_rect(double x, double y, double width, double height, std::string stroke = "black", std::string fill = "black");
+void
+show_histogram_svg(const std::vector<size_t>& bins);