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83 строки
2.3 KiB
C++
83 строки
2.3 KiB
C++
#include "svg01.h"
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#include <vector>
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#include <iostream>
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#include <string>
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using namespace std;
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void
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svg_begin(double width, double height) {
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cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
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cout << "<svg ";
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cout << "width='" << width << "' ";
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cout << "height='" << height << "' ";
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cout << "viewBox='0 0 " << width << " " << height << "' ";
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cout << "xmlns='http://www.w3.org/2000/svg'>\n";
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}
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void
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svg_end() {
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cout << "</svg>\n";
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}
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void
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svg_text(double left, double baseline, string text) {
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cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
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}
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void
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svg_rect(double x, double y, double width, double height, string colors_stroke, string colors_fill){
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cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' stroke='" << colors_stroke << "' fill='" << colors_fill << "'/>";
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}
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void
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input_colors(string &colors_stroke, string &colors_fill){
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string color_personal;
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cerr << "Do you want to change colors? Yes/No" << endl;
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cin >> color_personal;
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while ((color_personal != "No") && (color_personal != "Yes")){
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cerr << "WRONG ANSWER! Try again!" << endl;
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cin >> color_personal;
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}
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if (color_personal == "No"){
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return;
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}
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else {
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cerr << "What color for a stroke do you want?" << endl;
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cin >> colors_stroke;
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cerr << "What color to fill do you want?" << endl;
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cin >> colors_fill;
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}
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return;
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}
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void
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show_histogram_svg(const vector<size_t>& bins, string colors_stroke, string colors_fill) {
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const auto IMAGE_WIDTH = 400;
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const auto IMAGE_HEIGHT = 300;
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const auto TEXT_LEFT = 20;
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const auto TEXT_BASELINE = 20;
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const auto TEXT_WIDTH = 50;
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const auto BIN_HEIGHT = 30;
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const auto BLOCK_WIDTH = 10;
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svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
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double top = 0;
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double maxel = bins[0];
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for (size_t bin : bins) {
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if (maxel > bin){
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maxel = bin;
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}
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}
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for (size_t bin : bins) {
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const double bin_width = (( IMAGE_WIDTH - TEXT_WIDTH ) / BLOCK_WIDTH ) * ( bin / maxel );
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
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svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, colors_stroke, colors_fill);
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top += BIN_HEIGHT;
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}
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svg_end();
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}
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