HAS-Motion Software Documentation

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the_bigger_tip_can_be_pulled_off_to_reveal_the_smaller_tip._because_of_this_variability_it_is_important_that_each_lab_measure_the_distance_from_the_center_of_the_marker_to_the_tip._this_means_that_the_value_for_the_z-offset_in_the_figure_above_should_be_set_uniquely_for_each_laboratory._the_travel_of_the_marker_doesn_t_matter_too_much_but_visual3d_assumes_the_pointer_is_extended_during_the_static_trial_because_this_is_the_start_position_for_estimating_the_travel._custom_pointer_configurations_the_visual3d_digitizing_pointer_module_can_be_configured_for_any_custom_digitizing_pointer_that_uses_motion_capture_markers_to_locate_the_pointer_in_a_3d_volume._pointers_equipped_with_a_trigger_mechanism_can_trigger_an_event_that_will_help_visual3d_identify_frames_of_interest_automatically._for_example_the_davis_pointer_has_a_spring_in_the_housing_that_can_be_compressed_with_the_tip_located_at_the_anatomical_landmark_of_interest._compressing_the_spring_causes_the_motion_capture_markers_to_move_closer_together._visual3d_can_identify_events_associated_with_the_spring_compression_and_thus_can_determine_the_anatomical_landmarks_automatically._other_pointers_such_as_those_that_are_used_commonly_with_northern_digital_cameras_require_a_separate_external_trigger_or_the_user_must_identify_the_events_manually_which_actually_isn_t_a_terrible_burden_because_it_is_necessary_to_verify_the_events_even_when_the_process_is_automatic._verification_is_required_because_the_user_may_change_their_mind_and_choose_to_digitize_the_same_landmark_twice_e.g._because_the_tip_slipped_on_the_first_attempt_._the_result_is_that_this_erroneous_event_must_be_deleted._model_template_the_model_template_contains_the_configuration_of_the_digitizing_pointer_and_the_definition_of_the_digitizing_landmarks._in_most_cases_the_user_simply_needs_to_open_the_model_template_to_load_the_pointer_and_landmark_definitions}}