Adjust simulation planet radius according resolution

videodev-simulation.cc

@@ -55,8 +55,6 @@ int VideoDev_Simulation::Open() {
 
 	if (inframe != NULL) Close();
 
-//	conf_width = w;
-//	conf_height = h;
 	conf_format = convert_from_pixelformat (V4L2_PIX_FMT_RGB24);
 	simulation.SetResolution(conf_width, conf_height);
 
@@ -119,10 +117,10 @@ int VideoDev_Simulation::CaptureStop() {
  * If something goes wrong return an error code.
  * Return code VDEV_STATUS_AGAIN is not an error. There was no video image ready to read.
  */
-#define SIMULATION_SIZE 15
+#define SIMULATION_SIZE 16
 int VideoDev_Simulation::Grab(VideoFrame *vf) {
-	int posx, posy, x ,y;
-	double r, a, dsec;
+	int posx, posy, x ,y, r, radius;
+	double a, dsec;
 
 	// try to match a speed of 20Hz
 	dsec = get_cycletime(&lastframetv);
@@ -131,7 +129,8 @@ int VideoDev_Simulation::Grab(VideoFrame *vf) {
 	memset (inframe, 0x0, conf_width*conf_height*3);
 	simulation.GetPos(&posx, &posy);
 
-	for (r = 1; r < SIMULATION_SIZE; r++) for (a = 0; a < M_PI * 2.0; a += 0.1) {
+	radius = conf_width * SIMULATION_SIZE / 1920;
+	for (r = 1; r < radius; r++) for (a = 0; a < M_PI * 2.0; a += 0.1) {
 		x = posx + (sin(a) * r);
 		y = posy + (cos(a) * r);
 		if (x >= 0 && x < conf_width && y >= 0 && y < conf_height) {
@@ -308,4 +307,3 @@ void Simulation::AxisStop() {
 	axis[0].active = 0;
 	axis[1].active = 0;
 }
-