//$Id:$ /* DXFTOPOV.CPP - A program utility to convert DXF 3D line data to POV-ray script format. This program only converts DXF line entities. Copyright (C) 1995, 1996 Richard J. Bono This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. Please direct inquiries, comments and modifications to: Richard J. Bono 44 Augusta Rd. Brownsville, TX 78521 email: rjbono@applied-synergetics.com Revision history: $Log:$ Acknowledgements & References: Kirby Urner for subtly guiding my thought processes over a three day-weekend resulting in this code. Chris Fearnley for providing GNU POV scripts for several polyhedrons. Most of the POV header sections came from Chris' scripts. POV-ray is available on most on-line services and through the internet. DXF file format data is available on Compuserve. Search for file R12DXF.TXT in the Acad forum. Comments: This program is slowly evolving into perhaps a useful utility. DOME produces DXF file output in either DXF line (for buckyball) or 3D polyface for all other DXF constructs. DXFtoPOV converts DXF formats to POV-ray scripts. This program does not currently eliminate redundant connections so that the script files end up a bit larger than they should. Also it may not be able to handle some non-DOME produced DXF files. I will be addressing these issues in a future release. */ #include #include #include #include #include #include static char rcsid[]="$Id:$"; int main(int argc, char *argv[]); void logo_display(void); void logo_display(void) { char rev[]="$Revision: 1.4 $"; int i, j; char level[10]; //Get the revision level. I have been using GNU RCS to do revision control. //This revision level will be used to automatically display the correct rev level. j = 11; i = 0; while(rev[j] != ' '){ level[i] = rev[j]; j++; i++; } level[i] = '\0'; cout << "DXFtoPOV " << level << ", Copyright (C) 1995, 1996 - Richard J. Bono" << '\n'; cout << "DXFtoPOV comes with ABSOLUTELY NO WARRANTY. This is free software," << '\n'; cout << "and you are welcome to redistribute it under certain conditions." << '\n'; cout << "See GNU General Public License for more details." << '\n' << '\n'; } int main(int argc, char *argv[]) { char DXFfile[80]; char POVfile[80]; char DXF_line[80]; char last_line[80]; double sX, sY, sZ, eX, eY, eZ, cX, cY, cZ; int temp, temp1, line_ok, line_value, face_value; logo_display(); if(argc != 3){ cout << "Usage - DXFTOPOV filename.DXF filename.POV"; exit(0); } else if(argc == 3){ strcpy(DXFfile, argv[1]); strcpy(POVfile, argv[2]); } else{ cout << "Command line error --- Terminating Execution" << '\n'; cout << "Type DXFTOPOV for usage" << '\n'; } //Open file streams DXF for input POV for output ifstream DXF(DXFfile); ofstream POV(POVfile); //set up format for POV file data POV << setiosflags(ios::fixed) << setw(8) << setprecision(6); //set up file header POV << "//POV-Ray script" << '\n'; POV << "#include" << '"' << "colors.inc" << '"' << '\n' << '\n'; POV << "#declare Cam_factor = 6" << '\n'; POV << "#declare Camera_X = 1 * Cam_factor" << '\n'; POV << "#declare Camera_Y = 0.5 * Cam_factor" << '\n'; POV << "#declare Camera_Z = -0.3 * Cam_factor" << '\n'; POV << "camera { location " << '\n'; POV << " up <0, 1.0, 0> right <-1.33, 0, 0>" << '\n'; POV << " direction <0, 0, 3> look_at <0, 0, 0> }" << '\n' << '\n'; POV << "light_source { color White }" << '\n'; POV << "light_source { color White }" << '\n'; POV << '\n' << "// Background:" << '\n'; POV << "background {color Gray75}" << '\n' << '\n'; POV << "// POV script created by DXFTOPOV: " << '\n' << '\n'; POV << "union {" << '\n'; //Get the chord data do{ //get a line and see if says LINE or 3DFACE DXF >> DXF_line; face_value = strcmp(DXF_line, "3DFACE"); line_value = strcmp(DXF_line, "LINE"); if(!face_value){ //found a face...now get 1st point do{ line_ok = 1; //now look for starting X coordinate strcpy(last_line, DXF_line); DXF >> DXF_line; temp = strcmp(DXF_line, "10"); temp1 = strcmp(last_line, "8"); if(!temp && temp1){ //found coordinates, get and store DXF >> sX; DXF >> DXF_line; DXF >> sY; DXF >> DXF_line; DXF >> sZ; DXF >> DXF_line; DXF >> eX; DXF >> DXF_line; DXF >> eY; DXF >> DXF_line; DXF >> eZ; DXF >> DXF_line; DXF >> cX; DXF >> DXF_line; DXF >> cY; DXF >> DXF_line; DXF >> cZ; line_ok = 0; //save data to POV script POV << "sphere{<" << sX << ", " << sY << ", " << sZ; POV << ">,0.04 pigment {Blue} no_shadow}" << '\n'; POV << "sphere{<" << eX << ", " << eY << ", " << eZ; POV << ">,0.04 pigment {Blue} no_shadow}" << '\n'; POV << "sphere{<" << cX << ", " << cY << ", " << cZ; POV << ">,0.04 pigment {Blue} no_shadow}" << '\n'; POV << "cylinder{<" << sX << ", " << sY << ", " << sZ << ">, "; POV << "<" << eX << ", " << eY << ", " << eZ << ">,0.03 pigment {Red} no_shadow}" << '\n'; POV << "cylinder{<" << sX << ", " << sY << ", " << sZ << ">, "; POV << "<" << cX << ", " << cY << ", " << cZ << ">,0.03 pigment {Red} no_shadow}" << '\n'; POV << "cylinder{<" << cX << ", " << cY << ", " << cZ << ">, "; POV << "<" << eX << ", " << eY << ", " << eZ << ">,0.03 pigment {Red} no_shadow}" << '\n'; POV << "triangle{<" << sX << ", " << sY << ", " << sZ << ">, " << '\n'; POV << " <" << eX << ", " << eY << ", " << eZ << ">, " << '\n'; POV << " <" << cX << ", " << cY << ", " << cZ << "> " << '\n'; POV << "pigment {Blue} no_shadow}" << '\n'; } }while(line_ok == 1); } else if(!line_value){ //found a line...get the first point do{ line_ok = 1; //now look for starting X coordinate strcpy(last_line, DXF_line); DXF >> DXF_line; temp = strcmp(DXF_line, "10"); temp1 = strcmp(last_line, "8"); if(!temp && temp1){ //found coordinates, get and store DXF >> sX; DXF >> DXF_line; DXF >> sY; DXF >> DXF_line; DXF >> sZ; DXF >> DXF_line; DXF >> eX; DXF >> DXF_line; DXF >> eY; DXF >> DXF_line; DXF >> eZ; line_ok = 0; //save data to POV script POV << "sphere{<" << sX << ", " << sY << ", " << sZ; POV << ">,0.04 pigment {Blue} no_shadow}" << '\n'; POV << "sphere{<" << eX << ", " << eY << ", " << eZ; POV << ">,0.04 pigment {Blue} no_shadow}" << '\n'; POV << "cylinder{<" << sX << ", " << sY << ", " << sZ << ">, "; POV << "<" << eX << ", " << eY << ", " << eZ << ">,0.03 pigment {Red} no_shadow}" << '\n'; } }while(line_ok == 1); } }while(!DXF.eof()); //keep going until there is no more data //add a rotation POV << "rotate <0, 0, 0> }" << '\n'; //close the data files POV.close(); DXF.close(); cout << "Conversion complete!" << '\n'; return(0); }