dxf2svg.cpp

/*
 * Build a SVG from an dxf, will support conversion to Inkscape types
 *
 * Author:
 *   Matt Squires <squiresm@colorado.edu>
 *
 * Copyright (C) 2005 Matt Squires
 *
 * Released under GNU GPL and LGPL, read the file 'GPL.txt' and 'LGPL.txt' for details
 */


#include <fstream>
#include <iostream>
#include "read_dxf.h"
#include "entities.h"
#include "blocks.h"
#include "entities2elements.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>


int main(int argc,char *argv[]) {
	// Later include options for different conversions like converting as much as possible into paths
	int ink = 1; // Assume for now there is no inkscape stuff to add extra

    if (argc <= 1)
    {
		std::cerr << "usage: dxf2svg input.dxf > output.svg\n";
        return 1;
    }
	
    const double scaling = 90;  // converstion from in to pt
    
    // Read the DXF file

    //std::cout << "About to read file \n" << std::endl;
    std::vector<std::vector<dxfpair> > output = dxf_get_sections(argv[1]);
    //std::cout << "Finished reading file \n" << std::endl;
    
    const std::vector<std::vector<dxfpair> > entities_info = separate_parts(output[4]); // Entities is the 5th part of the file.
    entities ents(entities_info); // Sort entities into their respective parts
    
    const std::vector<std::vector<dxfpair> > tables_info = separate_parts(output[2]); // Tables is the 3rd part of a dxf file.
    tables tbls(tables_info);  // Sort the information in the tables
        
    const std::vector<std::vector<dxfpair> > blocks_info = separate_parts(output[3]); // Tables is the 4th part of a dxf file.
    blocks blks(blocks_info);  // Sort the information in the tables
    
    // Get the various file informations
    const std::vector<layer> layers = tbls.ret_layers();
    
    const char *units = "in";
    
    if (ink < 1) {
        // Write a general svg header
        std::cout << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\n\t\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n<svg xmlns=\"http://www.w3.org/2000/svg\"\n\txmlns:xlink=\"http://www.w3.org/1999/xlink\">\n";
        std::cout << "\tx=\"0.00000000\"\n\ty=\"0.00000000\"\n\twidth=\"744.09448\"\n\theight=\"-1052.3622\"" << std::endl;
    }
    else{
        std::cout << "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>" << std::endl;
        std::cout << "<!-- Created with dxf2svg -->" << std::endl;
        std::cout << "<svg" << std::endl;
        std::cout << "\txmlns:dc=\"http://purl.org/dc/elements/1.1/\"" << std::endl;
        std::cout << "\txmlns:cc=\"http://web.resource.org/cc/\"" << std::endl;
        std::cout << "\txmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"" << std::endl;
        std::cout << "\txmlns:svg=\"http://www.w3.org/2000/svg\"" << std::endl;
        std::cout << "\txmlns=\"http://www.w3.org/2000/svg\"" << std::endl;
        std::cout << "\txmlns:sodipodi=\"http://inkscape.sourceforge.net/DTD/sodipodi-0.dtd\"" << std::endl;
        std::cout << "\txmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\"" << std::endl;
        std::cout << "\t>" << std::endl;

    }
    
    // Now write SVG elements to file
    if (layers.size() < 1) {
        write_all(ents, tbls, blks, scaling, units);
    }
    else
    {
        for (size_t i = 0; i < layers.size(); i++) {
            std::cout << "\t<g\n\t\tinkscape:label=\"" << layers[i].name() <<  "\"\n\t\tinkscape:groupmode=\"layer\"\n\t\tid=\"layer" << i+1 << "\">" << std::endl;
            write_by_layer(ents, tbls, blks, scaling, units, layers[i].name());
            std::cout << "\t</g>" << std::endl;
        }
    }
    
    // Close SVG
    std::cout << "</svg>";

	return 0;
}