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40 строки
1.3 KiB
C++
40 строки
1.3 KiB
C++
#include <iostream>
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#include <vector>
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#include "svg.h"
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using namespace std;
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void show_histogram_svg(const std::vector<unsigned int>& bins) {
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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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cout << "<?xml version='1.0' encoding='UTF-8'?>" << endl;
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cout << "<svg width='" << IMAGE_WIDTH << "' height='" << IMAGE_HEIGHT << "' xmlns='http://www.w3.org/2000/svg'>" << endl;
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cout << "<rect fill='#eee' stroke='#ccc' width='100%' height='100%'/>" << endl;
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double top = 0;
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for (size_t i = 0; i < bins.size(); i++) {
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top = TEXT_BASELINE + i * BIN_HEIGHT;
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cout << "<text x='" << TEXT_LEFT << "' y='" << top << "'>" << i << "</text>" << endl;
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// çåð ñòë
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for (size_t j = 0; j < bins[i]; j++) {
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// Õ ïðàâî-ëåâî
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size_t x_position = bins[i] - j - 1;
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cout << "<rect x='" << (TEXT_LEFT + TEXT_WIDTH + x_position * BLOCK_WIDTH)
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<< "' y='" << (top - TEXT_BASELINE)
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<< "' width='" << (BLOCK_WIDTH - 1)
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<< "' height='" << (BIN_HEIGHT - 1)
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<< "' fill='blue' stroke='black'/>" << endl;
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}
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}
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cout << "</svg>" << endl;
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}
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