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105 строки
3.0 KiB
C++
105 строки
3.0 KiB
C++
#include <iostream>
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#include <vector>
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#include <string>
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#include "svg.h"
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using namespace std;
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const auto IMAGE_WIDTH = 400;
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const auto IMAGE_HEIGHT = 700;
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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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const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
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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 stroke = "black", string fill = "aaaaaa") {
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cout << "<rect x='" << x<< "' y='" << y<< "' width='" << width<< "' height='" << height<< "' stroke='" << stroke<< "' fill='" << fill << "' />\n";
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}
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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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show_histogram_svg(const vector<size_t>& bins) {
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const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
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size_t max_count = 0;
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for (size_t x : bins) {
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if (x > max_count) {
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max_count = x;
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}
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}
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if (max_count == 0) {
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max_count = 1;
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}
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auto scale_factor = static_cast<double>(MAX_WIDTH) / (max_count * BLOCK_WIDTH);
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if (scale_factor > 1) {
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scale_factor = 1;
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}
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svg_begin(400, 300);
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double top = 0;
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for (size_t bin : bins) {
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double bin_width = BLOCK_WIDTH * bin * scale_factor;
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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);
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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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void
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svg_rect_hight(double x, double y, double width, double height, string stroke = "black", string fill = "hfhfh") {
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cout << "<rect x='" << x<< "' y='" << y<< "' width='" << width<< "' height='" << height<< "' stroke='" << stroke<< "' fill='" << fill << "' />\n";
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}
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void
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COLUMN_hight_function( double &COLUMN_height ,size_t bin_count,const vector<size_t>& bins){
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const auto MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH;
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size_t max_count = 0;
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for (size_t x : bins) {
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if (x > max_count) {
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max_count = x;
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}
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}
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if (max_count == 0) {
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max_count = 1;
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}
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auto scale_factor = static_cast<double>(MAX_WIDTH) / (max_count * BLOCK_WIDTH);
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if (scale_factor > 1) {
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scale_factor = 1;
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}
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svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT );
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if ((bin_count*COLUMN_height) > IMAGE_HEIGHT ){
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COLUMN_height= static_cast<double>(IMAGE_HEIGHT) / bin_count;
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}
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double top = 0;
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for (size_t bin : bins) {
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double bin_width = BLOCK_WIDTH * bin * scale_factor;
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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, COLUMN_height);
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top += COLUMN_height;
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}
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svg_end();
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}
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