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-rw-r--r--gr-trellis/src/lib/fsm.cc66
-rw-r--r--gr-trellis/src/lib/fsm.h1
-rw-r--r--gr-trellis/src/lib/fsm.i1
3 files changed, 63 insertions, 5 deletions
diff --git a/gr-trellis/src/lib/fsm.cc b/gr-trellis/src/lib/fsm.cc
index 6e3933894..10ad553cd 100644
--- a/gr-trellis/src/lib/fsm.cc
+++ b/gr-trellis/src/lib/fsm.cc
@@ -21,6 +21,9 @@
*/
#include <cstdio>
+#include <string>
+#include <iostream>
+#include <fstream>
#include <stdexcept>
#include <cmath>
#include "base.h"
@@ -320,10 +323,63 @@ bool fsm::find_es(int es)
+//######################################################################
+//# generate trellis representation of FSM as an SVG file
+//######################################################################
+void fsm::write_trellis_svg( std::string filename ,int number_stages)
+{
+ std::ofstream trellis_fname (filename.c_str());
+ if (!trellis_fname) {std::cout << "file not found " << std::endl ; exit(-1);}
+ const int TRELLIS_Y_OFFSET = 30;
+ const int TRELLIS_X_OFFSET = 20;
+ const int STAGE_LABEL_Y_OFFSET = 25;
+ const int STAGE_LABEL_X_OFFSET = 20;
+ const int STATE_LABEL_Y_OFFSET = 30;
+ const int STATE_LABEL_X_OFFSET = 5;
+ const int STAGE_STATE_OFFSETS = 10;
+// std::cout << "################## BEGIN SVG TRELLIS PIC #####################" << std::endl;
+ trellis_fname << "<svg viewBox = \"0 0 200 200\" version = \"1.1\">" << std::endl;
+
+ for(unsigned int stage_num = 0;stage_num < number_stages;stage_num ++){
+ // draw states
+ for (unsigned int state_num = 0;state_num < d_S ; state_num ++ ) {
+ trellis_fname << "<circle cx = \"" << stage_num * STAGE_STATE_OFFSETS + TRELLIS_X_OFFSET <<
+ "\" cy = \"" << state_num * STAGE_STATE_OFFSETS + TRELLIS_Y_OFFSET << "\" r = \"1\"/>" << std::endl;
+ //draw branches
+ if(stage_num != number_stages-1){
+ for(unsigned int branch_num = 0;branch_num < d_I; branch_num++){
+ trellis_fname << "<line x1 =\"" << STAGE_STATE_OFFSETS * stage_num+ TRELLIS_X_OFFSET << "\" ";
+ trellis_fname << "y1 =\"" << state_num * STAGE_STATE_OFFSETS + TRELLIS_Y_OFFSET<< "\" ";
+ trellis_fname << "x2 =\"" << STAGE_STATE_OFFSETS *stage_num + STAGE_STATE_OFFSETS+ TRELLIS_X_OFFSET << "\" ";
+ trellis_fname << "y2 =\"" << d_NS[d_I * state_num + branch_num] * STAGE_STATE_OFFSETS + TRELLIS_Y_OFFSET << "\" ";
+ trellis_fname << " stroke-dasharray = \"3," << branch_num << "\" ";
+ trellis_fname << " stroke = \"black\" stroke-width = \"0.3\"/>" << std::endl;
+ }
+ }
+ }
+ }
+ // label the stages
+ trellis_fname << "<g font-size = \"4\" font= \"times\" fill = \"black\">" << std::endl;
+ for(unsigned int stage_num = 0;stage_num < number_stages ;stage_num ++){
+ trellis_fname << "<text x = \"" << stage_num * STAGE_STATE_OFFSETS + STAGE_LABEL_X_OFFSET <<
+ "\" y = \"" << STAGE_LABEL_Y_OFFSET << "\" >" << std::endl;
+ trellis_fname << stage_num << std::endl;
+ trellis_fname << "</text>" << std::endl;
+ }
+ trellis_fname << "</g>" << std::endl;
+
+ // label the states
+ trellis_fname << "<g font-size = \"4\" font= \"times\" fill = \"black\">" << std::endl;
+ for(unsigned int state_num = 0;state_num < d_S ; state_num ++){
+ trellis_fname << "<text y = \"" << state_num * STAGE_STATE_OFFSETS + STATE_LABEL_Y_OFFSET <<
+ "\" x = \"" << STATE_LABEL_X_OFFSET << "\" >" << std::endl;
+ trellis_fname << state_num << std::endl;
+ trellis_fname << "</text>" << std::endl;
+ }
+ trellis_fname << "</g>" << std::endl;
-
-
-
-
-
+ trellis_fname << "</svg>" << std::endl;
+// std::cout << "################## END SVG TRELLIS PIC ##################### " << std::endl;
+ trellis_fname.close();
+}
diff --git a/gr-trellis/src/lib/fsm.h b/gr-trellis/src/lib/fsm.h
index 66b1f1cc8..75255874b 100644
--- a/gr-trellis/src/lib/fsm.h
+++ b/gr-trellis/src/lib/fsm.h
@@ -58,6 +58,7 @@ public:
const std::vector< std::vector<int> > & PI () const { return d_PI; }
const std::vector<int> & TMi () const { return d_TMi; }
const std::vector<int> & TMl () const { return d_TMl; }
+ void write_trellis_svg( std::string filename ,int number_stages);
};
#endif
diff --git a/gr-trellis/src/lib/fsm.i b/gr-trellis/src/lib/fsm.i
index cec45fce3..e4c9e51a6 100644
--- a/gr-trellis/src/lib/fsm.i
+++ b/gr-trellis/src/lib/fsm.i
@@ -49,5 +49,6 @@ public:
const std::vector< std::vector<int> > & PI () const { return d_PI; }
const std::vector<int> & TMi () const { return d_TMi; }
const std::vector<int> & TMl () const { return d_TMl; }
+ void fsm::write_trellis_svg( std::string filename ,int number_stages);
};