Commit 4f517c76b909f099e3f4a31b4256b3a782b4d9e6
1 parent
bbb519e6
added color-mapped networks, parallel viewing of two networks
Showing
1 changed file
with
171 additions
and
119 deletions
Show diff stats
main.cpp
... | ... | @@ -8,7 +8,7 @@ |
8 | 8 | |
9 | 9 | //STIM includes |
10 | 10 | #include <stim/visualization/gl_network.h> |
11 | -#include <stim/visualization/gl_aabb.h> | |
11 | +#include <stim/visualization/gl_aaboundingbox.h> | |
12 | 12 | #include <stim/parser/arguments.h> |
13 | 13 | #include <stim/visualization/camera.h> |
14 | 14 | |
... | ... | @@ -18,62 +18,117 @@ |
18 | 18 | //BOOST includes |
19 | 19 | #include <boost/tuple/tuple.hpp> |
20 | 20 | |
21 | -stim::gl_aabb<float> bb; | |
22 | -stim::camera cam; | |
21 | +//visualization objects | |
22 | +stim::gl_aaboundingbox<float> bb; //axis-aligned bounding box object | |
23 | +stim::camera cam; //camera object | |
23 | 24 | |
24 | -stim::gl_network<float> GT; | |
25 | -stim::gl_network<float> T; | |
25 | +unsigned num_nets = 0; | |
26 | +stim::gl_network<float> GT; //ground truth network | |
27 | +stim::gl_network<float> T; //test network | |
26 | 28 | |
27 | 29 | //hard-coded parameters |
28 | -float resample_rate = 0.5; | |
30 | +float resample_rate = 0.5; //sample rate for the network (fraction of sigma used as the maximum sample rate) | |
31 | +float camera_factor = 1.2; //start point of the camera as a function of X and Y size | |
32 | +float orbit_factor = 0.01; //degrees per pixel used to orbit the camera | |
29 | 33 | |
30 | 34 | //mouse position tracking |
31 | 35 | int mouse_x; |
32 | 36 | int mouse_y; |
33 | 37 | |
38 | +//OpenGL objects | |
39 | +GLuint cmap_tex = 0; //texture name for the color map | |
40 | + | |
41 | +//sets an OpenGL viewport taking up the entire window | |
42 | +void glut_render_single_projection(){ | |
43 | + | |
44 | + glMatrixMode(GL_PROJECTION); //load the projection matrix for editing | |
45 | + glLoadIdentity(); //start with the identity matrix | |
46 | + int X = glutGet(GLUT_WINDOW_WIDTH); //use the whole screen for rendering | |
47 | + int Y = glutGet(GLUT_WINDOW_HEIGHT); | |
48 | + glViewport(0, 0, X, Y); //specify a viewport for the entire window | |
49 | + float aspect = (float)X / (float)Y; //calculate the aspect ratio | |
50 | + gluPerspective(60, aspect, 0.1, 1000000); //set up a perspective projection | |
51 | +} | |
52 | + | |
53 | +//sets an OpenGL viewport taking up the left half of the window | |
54 | +void glut_render_left_projection(){ | |
55 | + | |
56 | + glMatrixMode(GL_PROJECTION); //load the projection matrix for editing | |
57 | + glLoadIdentity(); //start with the identity matrix | |
58 | + int X = glutGet(GLUT_WINDOW_WIDTH) / 2; //only use half of the screen for the viewport | |
59 | + int Y = glutGet(GLUT_WINDOW_HEIGHT); | |
60 | + glViewport(0, 0, X, Y); //specify the viewport on the left | |
61 | + float aspect = (float)X / (float)Y; //calculate the aspect ratio | |
62 | + gluPerspective(60, aspect, 0.1, 1000000); //set up a perspective projection | |
63 | +} | |
64 | + | |
65 | +//sets an OpenGL viewport taking up the right half of the window | |
66 | +void glut_render_right_projection(){ | |
67 | + | |
68 | + glMatrixMode(GL_PROJECTION); //load the projection matrix for editing | |
69 | + glLoadIdentity(); //start with the identity matrix | |
70 | + int X = glutGet(GLUT_WINDOW_WIDTH) / 2; //only use half of the screen for the viewport | |
71 | + int Y = glutGet(GLUT_WINDOW_HEIGHT); | |
72 | + glViewport(X, 0, X, Y); //specify the viewport on the right | |
73 | + float aspect = (float)X / (float)Y; //calculate the aspect ratio | |
74 | + gluPerspective(60, aspect, 0.1, 1000000); //set up a perspective projection | |
75 | +} | |
76 | + | |
77 | +void glut_render_modelview(){ | |
78 | + | |
79 | + glMatrixMode(GL_MODELVIEW); //load the modelview matrix for editing | |
80 | + glLoadIdentity(); //start with the identity matrix | |
81 | + stim::vec<float> eye = cam.getPosition(); //get the camera position (eye point) | |
82 | + stim::vec<float> focus = cam.getLookAt(); //get the camera focal point | |
83 | + stim::vec<float> up = cam.getUp(); //get the camera "up" orientation | |
84 | + | |
85 | + gluLookAt(eye[0], eye[1], eye[2], focus[0], focus[1], focus[2], up[0], up[1], up[2]); //set up the OpenGL camera | |
86 | +} | |
87 | + | |
88 | +//draws the network(s) | |
34 | 89 | void glut_render(void) { |
35 | 90 | |
36 | - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | |
91 | + if(num_nets == 1){ //if a single network is loaded | |
92 | + glut_render_single_projection(); //fill the entire viewport | |
93 | + glut_render_modelview(); //set up the modelview matrix with camera details | |
94 | + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //clear the screen | |
95 | + GT.glCenterline(GT.nmags() - 1); //render the GT network (the only one loaded) | |
96 | + } | |
37 | 97 | |
38 | - glMatrixMode(GL_MODELVIEW); | |
39 | - glLoadIdentity(); | |
40 | - stim::vec<float> eye = cam.getPosition(); | |
41 | - stim::vec<float> focus = cam.getLookAt(); | |
42 | - stim::vec<float> up = cam.getUp(); | |
98 | + if(num_nets == 2){ //if two networks are loaded | |
43 | 99 | |
44 | - gluLookAt(eye[0], eye[1], eye[2], focus[0], focus[1], focus[2], up[0], up[1], up[2]); | |
100 | + glut_render_left_projection(); //set up a projection for the left half of the window | |
101 | + glut_render_modelview(); //set up the modelview matrix using camera details | |
102 | + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //clear the screen | |
45 | 103 | |
46 | - | |
104 | + glEnable(GL_TEXTURE_1D); //enable texture mapping | |
105 | + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); //texture map will be used as the network color | |
106 | + glBindTexture(GL_TEXTURE_1D, cmap_tex); //bind the Brewer texture map | |
47 | 107 | |
48 | - // render the bounding box | |
49 | - glColor3f(0.0, 0.0, 1.0); | |
50 | - bb.glWire(); | |
51 | - | |
108 | + GT.glCenterline(GT.nmags() - 1); //render the GT network | |
52 | 109 | |
53 | - //render the GT network (red) | |
54 | - glColor3f(1.0, 0.0, 0.0); | |
55 | - GT.glCenterline(); | |
110 | + glut_render_right_projection(); //set up a projection for the right half of the window | |
111 | + glut_render_modelview(); //set up the modelview matrix using camera details | |
112 | + T.glCenterline(T.nmags() - 1); //render the T network | |
56 | 113 | |
57 | - //render the T network (green) | |
58 | - glColor3f(0.0, 1.0, 0.0); | |
59 | - T.glCenterline(); | |
114 | + } | |
60 | 115 | |
61 | 116 | glutSwapBuffers(); |
62 | 117 | } |
63 | 118 | |
64 | 119 | // defines camera motion based on mouse dragging |
65 | 120 | void glut_motion(int x, int y){ |
66 | - float factor = 0.01; | |
121 | + | |
67 | 122 | |
68 | - float theta = factor * (mouse_x - x); | |
69 | - float phi = factor * (y - mouse_y); | |
123 | + float theta = orbit_factor * (mouse_x - x); //determine the number of degrees along the x-axis to rotate | |
124 | + float phi = orbit_factor * (y - mouse_y); //number of degrees along the y-axis to rotate | |
70 | 125 | |
71 | - cam.OrbitFocus(theta, phi); | |
126 | + cam.OrbitFocus(theta, phi); //rotate the camera around the focal point | |
72 | 127 | |
73 | - mouse_x = x; | |
128 | + mouse_x = x; //update the mouse position | |
74 | 129 | mouse_y = y; |
75 | - | |
76 | - glutPostRedisplay(); | |
130 | + | |
131 | + glutPostRedisplay(); //re-draw the visualization | |
77 | 132 | } |
78 | 133 | |
79 | 134 | // sets the mouse position when clicked |
... | ... | @@ -82,19 +137,78 @@ void glut_mouse(int button, int state, int x, int y){ |
82 | 137 | mouse_y = y; |
83 | 138 | } |
84 | 139 | |
85 | -// re-calculates the projection matrix if the window is reshaped | |
86 | -void glut_reshape(int x, int y){ | |
140 | +#define BREWER_CTRL_PTS 11 //number of control points in the Brewer map | |
141 | +void texture_initialize(){ | |
142 | + | |
143 | + //define the colormap | |
144 | + static float brewer_map[BREWER_CTRL_PTS][3] = { //generate a Brewer color map (blue to red) | |
145 | + {0.192157f, 0.211765f, 0.584314f}, | |
146 | + {0.270588f, 0.458824f, 0.705882f}, | |
147 | + {0.454902f, 0.678431f, 0.819608f}, | |
148 | + {0.670588f, 0.85098f, 0.913725f}, | |
149 | + {0.878431f, 0.952941f, 0.972549f}, | |
150 | + {1.0f, 1.0f, 0.74902f}, | |
151 | + {0.996078f, 0.878431f, 0.564706f}, | |
152 | + {0.992157f, 0.682353f, 0.380392f}, | |
153 | + {0.956863f, 0.427451f, 0.262745f}, | |
154 | + {0.843137f, 0.188235f, 0.152941f}, | |
155 | + {0.647059f, 0.0f, 0.14902f} | |
156 | + }; | |
157 | + | |
158 | + glGenTextures(1, &cmap_tex); //generate a texture map name | |
159 | + glBindTexture(GL_TEXTURE_1D, cmap_tex); //bind the texture map | |
160 | + | |
161 | + glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); //enable linear interpolation | |
162 | + glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | |
163 | + glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_CLAMP); //clamp the values at the minimum and maximum | |
164 | + glTexImage1D(GL_TEXTURE_1D, 0, 3, BREWER_CTRL_PTS, 0, GL_RGB, GL_FLOAT, //upload the texture map to the GPU | |
165 | + brewer_map); | |
166 | +} | |
167 | + | |
168 | +//Initialize the OpenGL (GLUT) window, including starting resolution, callbacks, texture maps, and camera | |
169 | +void glut_initialize(){ | |
170 | + | |
171 | + int myargc = 1; //GLUT requires arguments, so create some bogus ones | |
172 | + char* myargv[1]; | |
173 | + myargv [0]=strdup ("netmets"); | |
174 | + | |
175 | + glutInit(&myargc, myargv); //pass bogus arguments to glutInit() | |
176 | + glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA); //generate a color buffer, depth buffer, and enable double buffering | |
177 | + glutInitWindowPosition(100,100); //set the initial window position | |
178 | + glutInitWindowSize(320,320); //set the initial window size | |
179 | + glutCreateWindow("NetMets - STIM Lab, UH"); //set the dialog box title | |
87 | 180 | |
88 | - glMatrixMode(GL_PROJECTION); | |
89 | - glLoadIdentity(); | |
90 | - glViewport(0, 0, x, y); | |
91 | - float aspect = (float)x / (float)y; | |
92 | - gluPerspective(60, aspect, 0.1, 1000000); | |
181 | + | |
182 | + // register callback functions | |
183 | + glutDisplayFunc(glut_render); //function executed for rendering - renders networks | |
184 | + glutMouseFunc(glut_mouse); //executed on a mouse click - sets starting mouse positions for rotations | |
185 | + glutMotionFunc(glut_motion); //executed when the mouse is moved while a button is pressed | |
186 | + | |
187 | + texture_initialize(); //set up texture mapping (create texture maps, enable features) | |
188 | + | |
189 | + stim::vec<float> c = bb.center(); //get the center of the network bounding box | |
93 | 190 | |
191 | + //place the camera along the z-axis at a distance determined by the network size along x and y | |
192 | + cam.setPosition(c + stim::vec<float>(0, 0, camera_factor * std::max(bb.size()[0], bb.size()[1]))); | |
193 | + cam.LookAt(c[0], c[1], c[2]); //look at the center of the network | |
94 | 194 | } |
95 | 195 | |
196 | +//compare both networks and fill the networks with error information | |
197 | +void compare(float sigma){ | |
198 | + | |
199 | + GT = GT.compare(T, sigma); //compare the ground truth to the test case - store errors in GT | |
200 | + T = T.compare(GT, sigma); //compare the test case to the ground truth - store errors in T | |
201 | + | |
202 | + //calculate the metrics | |
203 | + float FPR = GT.average(1); //calculate the metrics | |
204 | + float FNR = T.average(1); | |
205 | + | |
206 | + std::cout << "FNR: " << FPR << std::endl; //print false alarms and misses | |
207 | + std::cout << "FPR: " << FNR << std::endl; | |
208 | +} | |
209 | + | |
210 | +// Output an advertisement for the lab, authors, and usage information | |
96 | 211 | void advertise(){ |
97 | - //output advertisement | |
98 | 212 | std::cout<<std::endl<<std::endl; |
99 | 213 | std::cout<<"========================================================================="<<std::endl; |
100 | 214 | std::cout<<"Thank you for using the NetMets network comparison tool!"<<std::endl; |
... | ... | @@ -107,94 +221,32 @@ void advertise(){ |
107 | 221 | std::cout<<" compare two files with a tolerance of 10 (units defined by the network)"<<std::endl; |
108 | 222 | std::cout<<" netmets file1 --gui"<<std::endl<<std::endl; |
109 | 223 | std::cout<<" load a file and display it using OpenGL"<<std::endl; |
110 | - | |
111 | -} | |
112 | - | |
113 | -void compare(float sigma){ | |
114 | - | |
115 | - // compare ground truth with truth and viceversa | |
116 | - stim::network<float> cGT = GT.compare(T, sigma); | |
117 | - stim::network<float> cT = T.compare(GT, sigma); | |
118 | - | |
119 | - //calculate the metrics | |
120 | - float FPR = cGT.average(1); | |
121 | - float FNR = cT.average(1); | |
122 | - // print false alarms and misses | |
123 | - std::cout << "FNR: " << FPR << std::endl; | |
124 | - std::cout << "FPR: " << FNR << std::endl; | |
125 | -} | |
126 | - | |
127 | -void glut_initialize(){ | |
128 | - float factor = 1.2; | |
129 | - | |
130 | - // init GLUT and create Window | |
131 | - int myargc = 1; | |
132 | - char* myargv[1]; | |
133 | - myargv [0]=strdup ("netmets"); | |
134 | - | |
135 | - glutInit(&myargc, myargv); | |
136 | - glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA); | |
137 | - glutInitWindowPosition(100,100); | |
138 | - glutInitWindowSize(320,320); | |
139 | - glutCreateWindow("Lighthouse3D- GLUT Tutorial"); | |
140 | - | |
141 | - | |
142 | - // register callbacks | |
143 | - glutDisplayFunc(glut_render); | |
144 | - glutMouseFunc(glut_mouse); | |
145 | - glutMotionFunc(glut_motion); | |
146 | - glutReshapeFunc(glut_reshape); | |
147 | - | |
148 | - //set up the camera | |
149 | - stim::vec<float> c = bb.center(); | |
150 | - //place the camera along the z-axis at a distance determined by the network size along x and y | |
151 | - cam.setPosition(c + stim::vec<float>(0, 0, factor * std::max(bb.size()[0], bb.size()[1]))); | |
152 | - cam.LookAt(c[0], c[1], c[2]); //look at the center | |
153 | - | |
154 | -} | |
155 | - | |
156 | -void display(){ | |
157 | - | |
158 | - | |
159 | - //generate a bounding volume | |
160 | - bb = GT.boundingbox(); | |
161 | - | |
162 | - //create the GLUT window and set callback functions | |
163 | - glut_initialize(); | |
164 | - | |
165 | - glut_reshape(glutGet(GLUT_WINDOW_WIDTH), glutGet(GLUT_WINDOW_HEIGHT)); | |
166 | - | |
167 | - // enter GLUT event processing cycle | |
168 | - glutMainLoop(); | |
169 | 224 | } |
170 | 225 | |
171 | 226 | int main(int argc, char* argv[]) |
172 | 227 | { |
173 | - //create an instance of arglist | |
174 | - stim::arglist args; | |
228 | + stim::arglist args; //create an instance of arglist | |
175 | 229 | |
176 | 230 | //add arguments |
177 | 231 | args.add("help", "prints this help"); |
178 | 232 | args.add("sigma", "force a sigma value to specify the tolerance of the network comparison", "10"); |
179 | 233 | args.add("gui", "display the network or network comparison using OpenGL"); |
180 | 234 | |
181 | - //parse the user arguments | |
182 | - args.parse(argc, argv); | |
235 | + args.parse(argc, argv); //parse the user arguments | |
183 | 236 | |
184 | - //test for help | |
185 | - if(args["help"].is_set() || args.nargs() == 0){ | |
186 | - advertise(); | |
187 | - std::cout<<args.str(); | |
188 | - exit(1); | |
237 | + if(args["help"].is_set() || args.nargs() == 0){ //test for help | |
238 | + advertise(); //output the advertisement | |
239 | + std::cout<<args.str(); //output arguments | |
240 | + exit(1); //exit | |
189 | 241 | } |
190 | - | |
191 | - //if one file is specified, load it as the ground truth | |
192 | - if(args.nargs() >= 1){ | |
193 | - GT.load_obj(args.arg(0)); | |
242 | + | |
243 | + if(args.nargs() >= 1){ //if at least one network file is specified | |
244 | + num_nets = 1; //set the number of networks to one | |
245 | + GT.load_obj(args.arg(0)); //load the specified file as the ground truth | |
194 | 246 | } |
195 | - | |
196 | - //if two files are provided, compare them | |
197 | - if(args.nargs() == 2){ | |
247 | + | |
248 | + if(args.nargs() == 2){ //if two files are specified, they will be displayed in neighboring viewports and compared | |
249 | + num_nets = 2; //set the number of networks to two | |
198 | 250 | float sigma = args["sigma"].as_float(); //get the sigma value from the user |
199 | 251 | T.load_obj(args.arg(1)); //load the second (test) network |
200 | 252 | |
... | ... | @@ -205,9 +257,9 @@ int main(int argc, char* argv[]) |
205 | 257 | } |
206 | 258 | |
207 | 259 | //if a GUI is requested, display the network using OpenGL |
208 | - if(args["gui"].is_set()) | |
209 | - display(); | |
210 | - | |
211 | - | |
212 | - | |
260 | + if(args["gui"].is_set()){ | |
261 | + bb = GT.boundingbox(); //generate a bounding volume | |
262 | + glut_initialize(); //create the GLUT window and set callback functions | |
263 | + glutMainLoop(); // enter GLUT event processing cycle | |
264 | + } | |
213 | 265 | } |
214 | 266 | \ No newline at end of file | ... | ... |