diff --git a/svg.cpp b/svg.cpp new file mode 100644 index 0000000..3e04594 --- /dev/null +++ b/svg.cpp @@ -0,0 +1,45 @@ +#include <iostream> +#include <vector> +#include "svg.h" + +void svg_begin(double width, double height) { + std::cout << "<?xml version='1.0' encoding='UTF-8'?>\n"; + std::cout << "<svg "; + std::cout << "width='" << width << "' "; + std::cout << "height='" << height << "' "; + std::cout << "viewBox='0 0 " << width << " " << height << "' "; + std::cout << "xmlns='http://www.w3.org/2000/svg'>\n"; +} + +void svg_end() { + std::cout << "</svg>\n"; +} + +void svg_text(double left, double baseline, std::string text) { + std::cout << "<text x='" << left << "' y='"<< baseline <<"'>"<< text <<"</text>"; +} + +void svg_rect(double x, double y, double width, double height) { + std::cout << "<rect x='"<< x <<"' y='"<< y <<"' width='"<< width <<"' height='"<< height <<"' fill='#FF0000' />"; +} + +void show_histogram_svg(const std::vector<double>& 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; + const auto BLOCK_WIDTH = 10; + + svg_begin(400, 300); + double top = 0; + for (size_t bin : bins) { + const double bin_width = BLOCK_WIDTH * bin; + svg_text(TEXT_LEFT, top + TEXT_BASELINE, std::to_string(bin)); + svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT); + top += BIN_HEIGHT; + } + + svg_end(); +} diff --git a/svg.h b/svg.h new file mode 100644 index 0000000..f4f7c5b --- /dev/null +++ b/svg.h @@ -0,0 +1,9 @@ +#ifndef SVG_H_INCLUDED +#define SVG_H_INCLUDED + +#include <vector> + +void show_histogram_svg(const std::vector<double>& bins); + + +#endif // SVG_H_INCLUDED