Changeset 19 for liacs/mss/project/colour-tracking.c

Timestamp:

Dec 2, 2009, 7:33:14 AM (15 years ago)

Author:

Rick van der Zwet

Message:

Checkerboard generation (test field)

File:

• liacs/mss/project/colour-tracking.c (modified) (4 diffs)

liacs/mss/project/colour-tracking.c

@@ -31 +31 @@
 }
 
+/* Convert the virtual mapping to screen size */
+int ratio (const int size, const int current_size, const int orig_size) {
+    double t = (double)size / current_size;
+    t *= orig_size;
+    // printf("%i/%i -> %i\n", size, current_size, (int)t);
+    return((int)t);
+}
+
 int InitSystem(int argc, char *argv[]) {
     // Don't care which camera to use. Use specified number elsewise
-    int cam_number = -1;
-    if (argc > 1)
-        cam_number = atoi(argv[1]);
-    printf("Using camera %i\n", cam_number);
+    if (argc < 3) {
+        printf("Usage: %s <cam number> <screen width> <screen height>\n",
+            argv[0]);
+        return(64);
+    }
+    const int cam_number = atoi(argv[1]);
+    const int screen_width = atoi(argv[2]);
+    const int screen_height = atoi(argv[3]);
+    printf("INFO Using camera %i\n", cam_number);
+    printf("INFO Screen size %ix%i\n", screen_width, screen_height);
     CvCapture *capture = cvCaptureFromCAM(cam_number);
     int width = cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH);
@@ -122 +136 @@
                                 xmax = n;
                                 ymax = m;
-                                printf("Current value: %ix%i=%i\n", xmax, ymax, cvalue);
+                                //printf("Current value: %ix%i=%i\n", xmax, ymax, cvalue);
                         }
                 } else {
@@ -155 +169 @@
         cvCopy(output,filter, NULL);
         cvCircle(target, cvPoint(xmax, ymax), 10, CV_RGB(255,0,0),4, 8, 0);
-        xdo_mousemove(xdo,xmax,ymax);
+        xdo_mousemove(xdo, ratio(xmax,width,screen_width), 
+            ratio(ymax,height,screen_height));
                         
 
@@ -192 +207 @@
    retval = InitSystem(argc, argv);
    xdo_free(xdo);
-}
+   return(retval);
+}