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44 строки
1.5 KiB
C++
44 строки
1.5 KiB
C++
#include "svg.h"
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void
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show_histogram_svg(const vector<size_t>& bins, size_t number_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 BLOCK_WIDTH = 10;
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const auto PERCENT_WIDTH = 30;
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const auto PERCENT_LEFT = 20;
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svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
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double top = 0;
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size_t longest;
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if (!bins.empty()) {
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longest = bins[0];
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} else {
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longest = 0;
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}
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for (size_t bin : bins) {
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if (bin > longest) {
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longest = 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 = BLOCK_WIDTH * bin;
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size_t percent = (static_cast<double>(bin) / static_cast<double> (number_count) * 100);
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if (bin == longest){
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
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svg_rect(TEXT_WIDTH, top, IMAGE_WIDTH - TEXT_WIDTH - PERCENT_WIDTH - PERCENT_LEFT, BIN_HEIGHT, "#000000", "#00ffff");
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svg_perc(IMAGE_WIDTH - PERCENT_WIDTH, top + TEXT_BASELINE, to_string(percent));
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top += BIN_HEIGHT;
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} else{
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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, "#000000", "#00ffff");
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svg_perc(IMAGE_WIDTH - PERCENT_WIDTH, top + TEXT_BASELINE, to_string(percent));
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top += BIN_HEIGHT;
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}
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}
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svg_end();
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}
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