/// <summary> /// returns true if the given feature is visible /// </summary> /// <param name="feat"></param> /// <returns></returns> public bool featureVisible(Feature feat) { if (!((feat.get_successful_measurement_flag()) && (feat.get_feature_measurement_model().fully_initialised_flag))) { if (feat.get_feature_measurement_model().fully_initialised_flag) { reconstructFeaturePosition(feat); int screen_x = 0; int screen_y = 0; projectFeature(feat, ref screen_x, ref screen_y); if ((screen_x > 0) && (screen_y > 0) && (screen_x < image_width) && (screen_y < image_height)) { Vector v = new Vector(2); v[0] = screen_x; v[1] = screen_y; feat.set_h(v); return(true); } else { return(false); } } else { return(false); } } else { return(true); } }