fix(ofApp.hpp): add flg_capture_only boolean flag to the ofApp class …

…constructor to control capture mode

fix(main.cpp): modify argument check condition to allow for optional capture mode argument
fix(main.cpp): pass capture mode argument to the ofApp constructor
fix(ofApp.cpp): initialize flg_capture_only member variable in the ofApp constructor
fix(ofApp.cpp): modify printKeys() function to only print keys if not in capture mode
fix(ofApp.cpp): exit the program after capturing a snapshot if in capture mode

include/ofApp.hpp

@@ -20,6 +20,7 @@ class ofApp : public ofBaseApp
   const int font_size;
 
   // flg
+  bool flg_capture_only;
   bool flg_autoplay;
   bool flg_loop;
   bool flg_goal;
@@ -58,5 +59,5 @@ class ofApp : public ofBaseApp
   void dragEvent(ofDragInfo dragInfo);
   void gotMessage(ofMessage msg);
 
-  ofApp(Graph* _G, Solution* _P);
+  ofApp(Graph* _G, Solution* _P, bool flg_capture_only = false);
 };

src/main.cpp

@@ -11,7 +11,7 @@ const std::regex r_pos = std::regex(R"(\((\d+),(\d+)\),)");
 int main(int argc, char *argv[])
 {
   // simple arguments check
-  if (argc != 3 || !std::ifstream(argv[1]) || !std::ifstream(argv[2])) {
+  if (argc < 3 || !std::ifstream(argv[1]) || !std::ifstream(argv[2])) {
     std::cout << "Please check the arguments, e.g.,\n"
               << "> mapf-visualizer assets/random-32-32-20.map "
                  "assets/demo_random-32-32-20.txt"
@@ -45,6 +45,7 @@ int main(int argc, char *argv[])
 
   // visualize
   ofSetupOpenGL(100, 100, OF_WINDOW);
-  ofRunApp(new ofApp(&G, &solution));
+  ofRunApp(new ofApp(&G, &solution,
+                     (argc > 3 && std::string(argv[3]) == "capture_mode")));
   return 0;
 }

src/ofApp.cpp

@@ -32,7 +32,7 @@ static void printKeys()
   std::cout << "- esc : terminate" << std::endl;
 }
 
-ofApp::ofApp(Graph* _G, Solution* _P)
+ofApp::ofApp(Graph* _G, Solution* _P, bool _flg_capture_only)
     : G(_G),
       P(_P),
       N(P->front().size()),
@@ -42,14 +42,15 @@ ofApp::ofApp(Graph* _G, Solution* _P)
       agent_rad(scale / std::sqrt(2) / 2),
       goal_rad(scale / 4.0),
       font_size(std::max(scale / 8, 6)),
+      flg_capture_only(_flg_capture_only),
       flg_autoplay(true),
       flg_loop(true),
       flg_goal(true),
       flg_font(false),
-      flg_snapshot(false),
+      flg_snapshot(flg_capture_only),
       flg_zoomout(false),
       flg_zoomin(false),
-      line_mode(LINE_MODE::STRAIGHT)
+      line_mode(flg_capture_only ? LINE_MODE::PATH : LINE_MODE::STRAIGHT)
 {
 }
 
@@ -73,7 +74,7 @@ void ofApp::setup()
   cam.removeAllInteractions();
   cam.addInteraction(ofEasyCam::TRANSFORM_TRANSLATE_XY, OF_MOUSE_BUTTON_LEFT);
 
-  printKeys();
+  if (!flg_capture_only) printKeys();
 }
 
 void ofApp::update()
@@ -209,6 +210,7 @@ void ofApp::draw()
   if (flg_snapshot) {
     ofEndSaveScreenAsPDF();
     flg_snapshot = false;
+    if (flg_capture_only) std::exit(0);
   }
 
   cam.end();