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68 строки
2.1 KiB
C++
68 строки
2.1 KiB
C++
#include "svg.h"
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#include <iostream>
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#include <vector>
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#include <math.h>
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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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std::cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
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std::cout << "<svg ";
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std::cout << "width='" << width << "' ";
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std::cout << "height='" << height << "' ";
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std::cout << "viewBox='0 0 " << width << " " << height << "' ";
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std::cout << "xmlns='http://www.w3.org/2000/svg'>\n";
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}
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void
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svg_text(double left, double baseline, std::string text) {
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std::cout << "<text x='"<< left <<"' y='"<< baseline <<"'>"<< text <<"</text>";
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}
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void svg_rect(double x, double y, double width, double height,std::string stroke = "black", std::string fill = "green"){
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std::cout<< "<rect x='"<< x <<"' y='"<< y <<"' width='"<< width <<"' height='"<< height <<"' stroke = '" << stroke <<"' fill = '" << fill <<"' />";
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}
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void
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svg_end() {
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std::cout << "</svg>\n";
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}
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void
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show_histogram_svg(std::vector<size_t> bins,size_t max_count) {
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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 SCALE = 10;
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const auto BLOCK_WIDTH = (IMAGE_WIDTH - TEXT_WIDTH);
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svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
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double top = 0;
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if((SCALE*max_count)>BLOCK_WIDTH)
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{
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for (size_t i = 0; i < bins.size(); i++) {
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const double bin_width = BLOCK_WIDTH * (bins[i]/max_count);
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const auto TEXT_LEFT_PROCENT = SCALE+TEXT_WIDTH+20;
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, std::to_string(bins[i]));
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svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
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top += BIN_HEIGHT;
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}}
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else{
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for (size_t i = 0; i < bins.size(); i++) {
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const double bin_width = bins[i] * SCALE;
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const auto TEXT_LEFT_PROCENT = (max_count*SCALE)+TEXT_WIDTH+20;
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, std::to_string(bins[i]));
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svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
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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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}
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