| Diploma Thesis Percolation Simulation C++ Sourcecode Documentation |
00001 // svg.h 00002 // output of spheres to SVG graphics 00003 // 00004 // (C) 14.10.2001 cpp__at__AndreasKrueger__dot__de 00005 // version 1.1 last change: 16.3.2002 00006 00007 #ifndef _STRING_ 00008 #include <string> 00009 #endif 00010 00011 #ifndef _LIST_ 00012 #include <list> 00013 #endif 00014 00015 #ifndef _STRSTREAM_ 00016 #include <strstream> 00017 using std::ostrstream; 00018 #endif 00019 00020 00021 namespace graphics { 00022 00023 00024 class RGBcolor { 00025 REAL R; 00026 REAL G; 00027 REAL B; 00028 public: 00029 RGBcolor(); 00030 RGBcolor(REAL, REAL, REAL); 00031 string svg(); 00032 }; 00033 00034 RGBcolor::RGBcolor(){R=0; G=0; B=0;} 00035 RGBcolor::RGBcolor(REAL R_, REAL G_, REAL B_) : R(R_), G(G_), B(B_) {}; 00036 00037 string RGBcolor::svg(){ 00038 ostrstream temp; 00039 temp<<"rgb("<<R<<"%,"<<G<<"%,"<<B<<"%)"; 00040 temp <<'\0'; 00041 return temp.str(); 00042 } 00043 00044 00045 class shape { 00046 protected: 00047 RGBcolor fillcolor; 00048 RGBcolor strokecolor; 00049 REAL opacity; 00050 public: 00051 shape (){}; 00052 shape (RGBcolor fillcolor_, RGBcolor strokecolor_, REAL opacity_) 00053 : fillcolor(fillcolor_), strokecolor(strokecolor_), opacity(opacity_){}; 00054 string svgstyle(bool fill, bool stroke, bool opac); 00055 virtual string svg(bool fill, bool stroke, bool opac) {return "";} ; 00056 }; 00057 00058 00059 string shape::svgstyle(bool fill, bool stroke, bool opac){ 00060 ostrstream temp; 00061 if (fill||stroke||opac) { 00062 if (fill) temp<<"fill=\""<<fillcolor.svg()<<"\" "; 00063 if (stroke) temp<<"stroke=\""<<strokecolor.svg()<<"\" "; 00064 if (opac) temp<<"opacity=\""<<opacity<<"\" "; 00065 } 00066 temp <<'\0'; 00067 return temp.str(); 00068 } 00069 00070 00071 00072 class circle : public shape { 00073 COORDFLOAT cx; 00074 COORDFLOAT cy; 00075 REAL r; 00076 public: 00077 circle(){}; 00078 circle(COORDFLOAT cx_, COORDFLOAT cy_, REAL r_) : cx(cx_), cy(cy_), r(r_) {}; 00079 circle(COORDFLOAT cx_, COORDFLOAT cy_, REAL r_, RGBcolor fillcolor_, RGBcolor strokecolor_, REAL opacity_); 00080 string svg(bool fill, bool stroke, bool opac); 00081 }; 00082 00083 circle::circle(COORDFLOAT cx_, COORDFLOAT cy_, REAL r_, RGBcolor fillcolor_, RGBcolor strokecolor_, REAL opacity_) 00084 : cx(cx_), cy(cy_), r(r_), shape(fillcolor_, strokecolor_, opacity_) {}; 00085 00086 string circle::svg(bool fill, bool stroke, bool opac){ 00087 ostrstream temp; 00088 temp<<"<circle cx=\""<<cx<<"\" cy=\""<<cy<<"\" r=\""<<r<<"\" "; 00089 temp<<svgstyle(fill, stroke, opac); 00090 temp<<" />"; 00091 temp <<'\0'; 00092 return temp.str(); 00093 } 00094 00095 00096 00097 00098 class rect : public shape { 00099 COORDFLOAT x; 00100 COORDFLOAT y; 00101 COORDFLOAT width; 00102 COORDFLOAT height; 00103 public: 00104 rect(COORDFLOAT x_, COORDFLOAT y_, COORDFLOAT width_, COORDFLOAT height_) 00105 : x(x_), y(y_), width(width_), height(height_) {}; 00106 rect(COORDFLOAT x_, COORDFLOAT y_, COORDFLOAT width_, COORDFLOAT height_, 00107 RGBcolor fillcolor_, RGBcolor strokecolor_, REAL opacity_) 00108 : x(x_), y(y_), width(width_), height(height_), shape (fillcolor_, strokecolor_, opacity_) {}; 00109 string svg(bool fill, bool stroke, bool opac); 00110 }; 00111 00112 string rect::svg(bool fill, bool stroke, bool opac){ 00113 ostrstream temp; 00114 temp<<"<rect x=\""<<x<<"\" y=\""<<y<<"\" width=\""<<width<<"\" height=\""<<height<<"\" "; 00115 temp<<svgstyle(fill, stroke, opac) << "/>"; 00116 temp <<'\0'; 00117 return temp.str(); 00118 } 00119 00120 00121 00122 class svg { 00123 string filename; 00124 string xmlHeader; 00125 string svgParameter; 00126 string svgBody; 00127 public: 00128 svg(); 00129 void setBody(string svgBody_); 00130 void append2Body(string element); 00131 void append2Body(shape element, bool fill, bool stroke, bool opac); 00132 void append2Body(std::list<shape*> & listofelements, bool fill, bool stroke, bool opac); 00133 void choose_header(int number); 00134 void choose_parameters(int number); 00135 void svg::write2file(string filename_); 00136 }; 00137 00138 svg::svg(){svgBody="";}; 00139 00140 void svg::setBody(string svgBody_){ 00141 svgBody=svgBody_; 00142 } 00143 00144 void svg::append2Body(string element){ 00145 svgBody+="\n"; 00146 svgBody+=element; 00147 } 00148 00149 void svg::append2Body(shape element, bool fill, bool stroke, bool opac){ 00150 svgBody+="\n"; 00151 svgBody+=element.svg(fill, stroke, opac); 00152 } 00153 00154 void svg::append2Body(std::list<shape*> & listofelements, bool fill, bool stroke, bool opac){ 00155 std::list<shape*>::iterator e; 00156 string svgobject; 00157 for (e=listofelements.begin();e!=listofelements.end();e++){ 00158 svgBody+= (*e)->svg(fill, stroke, opac); 00159 svgBody+="\n"; 00160 } 00161 } 00162 00163 void delete_objects(std::list<shape*> & listofelements){ 00164 std::list<shape*>::iterator e; 00165 for (e=listofelements.begin();e!=listofelements.end();e++){ 00166 delete (*e); 00167 } 00168 } 00169 00170 const string XML_HEADER_1="<?xml version=\"1.0\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.0//EN\" \n\"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">"; 00171 00172 void svg::choose_header(int number){ 00173 switch(number){ 00174 case 1: 00175 xmlHeader=XML_HEADER_1; 00176 break; 00177 } 00178 } 00179 00180 const string SVG_PARAMETER_0=""; 00181 const string SVG_PARAMETER_2="width=\"12cm\" height=\"3.5cm\""; 00182 const string SVG_PARAMETER_1="width=\"12cm\" height=\"3.5cm\" viewBox=\"0 0 1200 350\""; 00183 00184 void svg::choose_parameters(int number){ 00185 switch(number){ 00186 case 0: 00187 svgParameter=SVG_PARAMETER_0; 00188 break; 00189 case 1: 00190 svgParameter=SVG_PARAMETER_1; 00191 break; 00192 case 2: 00193 svgParameter=SVG_PARAMETER_2; 00194 break; 00195 } 00196 } 00197 00198 void finddebug(){ 00199 cout <<"founddebug"<<endl; 00200 } 00201 00202 void svg::write2file(string filename_){ 00203 filename=filename_; 00204 FILE* outFile= fopen( filename.c_str(), "w" ); 00205 if (outFile==0){ 00206 cout << filename<<endl; 00207 finddebug(); 00208 } 00209 fprintf(outFile,"%s",xmlHeader.c_str()); 00210 00211 fprintf(outFile,"%s","\n<svg "); 00212 fprintf(outFile,"%s",svgParameter.c_str()); 00213 fprintf(outFile,"%s",">\n"); 00214 fprintf(outFile,"%s",svgBody.c_str()); 00215 fprintf(outFile,"%s","\n</svg>\n"); 00216 fclose( outFile ) ; 00217 } 00218 00219 00220 00221 00222 00223 void svg_test(){ 00224 svg myPicture; 00225 myPicture.choose_header(1); 00226 myPicture.choose_parameters(0); 00227 myPicture.setBody(""); 00228 RGBcolor color1=RGBcolor(100,0,0); 00229 RGBcolor color2=RGBcolor(0,0,80); 00230 RGBcolor color3=RGBcolor(0,100,0); 00231 myPicture.append2Body(rect (0,0,1000, 1000,color1,color2, 1).svg(true, true, true)); 00232 myPicture.append2Body(circle (300,300,50,color2,color3, 0.5).svg(true, true, true)); 00233 myPicture.append2Body(circle (330,300,50,color2,color3, 0.5).svg(true, true, true)); 00234 string filename=FILEHEAD2; filename+="test.svg"; 00235 myPicture.write2file(filename); 00236 cout <<"Written the file "<<filename<<". \nPlease watch it using a SVG plugin."<<endl; 00237 } 00238 00239 string real2string(REAL arg){ 00240 ostrstream temp; 00241 temp<<arg; 00242 temp <<'\0'; 00243 return temp.str(); 00244 } 00245 00246 00247 void svg_circles(COORDFLOAT L, NUMBER N, REAL R){ 00248 00249 std::list<shape*> objects; 00250 shape* object; 00251 00252 RGBcolor color1=RGBcolor(80,0,0); 00253 RGBcolor color2=RGBcolor(0,0,0); 00254 RGBcolor color3=RGBcolor(0,0,100); 00255 00256 int i=N; 00257 for(i; i>0; i--){ 00258 object= new circle (long_random(L),long_random(L), R, color3, color2, 0.7); 00259 objects.push_back(object); 00260 } 00261 svg myPicture; 00262 myPicture.choose_header(1); 00263 myPicture.choose_parameters(0); 00264 myPicture.setBody(rect (0,0,L, L,color1,color2, 0.8).svg(true, true, true)); 00265 00266 string group=""; 00267 group+="<g style=\"fill:"+color3.svg()+"; "; 00268 group+="stroke-width:"+real2string(R/40)+"; stroke:" + color2.svg() + "\">\n"; 00269 00270 // idea: don't keep the huge string, 00271 // but directly write it into a file 00272 00273 myPicture.append2Body(group); 00274 myPicture.append2Body(objects, false, false, true); 00275 myPicture.append2Body("</g>"); 00276 00277 string filename=FILEHEAD2; 00278 ostrstream temp2; 00279 temp2<<"random_N"<<N<<"_L"<<L<<"_R"<<R<<".svg"; 00280 temp2 <<'\0'; 00281 filename+=temp2.str(); 00282 myPicture.write2file(filename); 00283 cout <<"Written the file "<<filename<<". \nPlease watch it using a SVG plugin."<<endl; 00284 delete_objects(objects); 00285 } 00286 } // end of namespace graphics 00287 00288 namespace frontend{ 00289 void svg_frontend(){ 00290 cout <<"SVG Scalable Vector Graphics\nPlease choose\n"<<endl; 00291 cout <<"a test (t)"<<endl; 00292 cout <<"throw random discs (r)"<<endl; 00293 00294 char a; cin>>a; 00295 00296 switch (a) { 00297 case 't': graphics::svg_test(); break; 00298 case 'r': 00299 COORDFLOAT L=500; 00300 cout<<"number of discs : "; 00301 NUMBER N; cin >>N; 00302 REAL Rcrit=R_critical_guessed (N, L, 2); 00303 cout<<"choose radius (r.critical="<<Rcrit<<") : "; 00304 REAL R; cin >>R; 00305 graphics::svg_circles(L, N, R); break; 00306 } 00307 } 00308 00309 } // end of namespace frontend
| Diploma Thesis Sourcecode
Documentation check out the text and the executable binaries |