diff --git a/svg.cpp b/svg.cpp new file mode 100644 index 0000000..149f2cd --- /dev/null +++ b/svg.cpp @@ -0,0 +1,55 @@ +#include "svg.h" +#include +#include + +using namespace std; + +void svg_begin(double width, double height) { + cout << "\n"; + cout << "\n"; +} + +void svg_end() { + cout << "\n"; +} + +void svg_text(double left, double baseline, const string& text) { + cout << "" << text << "\n"; +} + +void svg_rect(double x, double y, double width, double height, const string& stroke, const string& fill) { + cout << "\n"; +} + +void show_histogram_svg(const vector& bins) { + const auto IMAGE_WIDTH = 400; + const auto IMAGE_HEIGHT = 300; + const auto TEXT_LEFT = 20; + const auto TEXT_BASELINE = 20; + const auto TEXT_WIDTH = 50; + const auto BIN_HEIGHT = 30; + + size_t max_count = 0; + for (size_t count : bins) { + if (count > max_count) { + max_count = count; + } + } + + double BLOCK_WIDTH = (IMAGE_WIDTH - TEXT_WIDTH) / static_cast(max_count); + + svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT); + + double top = 0; + for (size_t bin : bins) { + double bin_width = BLOCK_WIDTH * bin; + svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin)); + svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "black", "#aaaaaa"); + top += BIN_HEIGHT; + } + + svg_end(); +}