Learning Heart

  • Learning Heart

    Get Learning Heart From Microsoft Store

  • SphereGen collaborated with St. George’s University to develop The Learning Heart. The Learning Heart is a Microsoft HoloLens application that assists students in understanding the elements of the Heart. As a study aid and teaching tool, this application can be used individually or collaboratively by multiple HoloLens users. Grasp the material like never before in this immersive experience!

    The holograms are fully 3-Dimensional and can be traversed around and viewed from any position and angle. Holograms will not interact with or be effected by the real world, and will perform actions on command. Holograms will appear roughly 1-2 meters in front of your initial location, so for best experience, use Learning Heart in an area with at least 1 meter of empty space.

Interface

On Startup, an animated heart and user-interface will appear in front of you. This interface is ever-present and can be used to navigate through the functionality of Learning Heart. Initially, the heart will begin in an anchored state and will remain in that initial location until commanded otherwise. All interface options have voice commands that appear when gazed upon. Because of this, the Learning Heart can be navigated with voice-commands.

Go Back

  • Go Back

  • Voice Commands: “Back”, “Parent”
    Availability: Can be used with All Elements of the Heart as long as the element is connected (not spliced).
    On Selection: Select the element that links to the current element.
    When to Use: Traverse the Hearts Hierarchy of Elements

Change Appearance of the Heart

  • Appearance

  • Voice Commands: “View”, “Appearance”
    Availability: Can be used with All elements except the Heart as a whole.
    On Selection: Adjust the appearance of other elements by making them transparent, or fully visible.
    When to Use: Make it easier to view elements of the heart that are normally difficult to see, such as elements inside the chambers of the heart.

Rearrange the Elements of the Heart

  • Rearrange

  • Voice Commands:  “Rearrange”, “Reorganize”
    Availability:

    • Must not be in Modify Mode
    • Chosen element must be the Whole Heart or part of a spliced element.

    On Selection:

    • Toggle A:  All elements of the heart that are currently united will be separated.
    • Toggle B:  All elements of the heart that are currently separated will be united to form the heart.

    When to Use: Rearrange the elements of the Heart so that they appear as separate parts, or unite them all together to form the whole heart.

Splice and Separate From, or Reattach One Element of the Heart To, its Parent Model

  • Splice

  • Voice Commands: “Splice”
    Availability: Element must have a tangible form and the heart in its entirety must not be rearranged (separated)
    On Selection:

    • Toggle A: Separate this element from the rest.
    • Toggle B: Reattach this element to the rest.

    When to Use: Separate or reattach an individual element. This opens up the ability to modify this element.

Anchoring the Menu Interface

  • Anchor

  • Voice Commands: “Anchor”
    Availability: Always
    On Selection:

    • Toggle A: Force/lock the interface to its current position.
    • Toggle B: Unlock the interface and allow it to freely follow the user.

    When to Use: Force the interface to stay in position, or begin staying in view of the user when not looking down.

Turn Narration Function On/Off

  • Narrate

  • Voice Commands:  “Narrate”, “Read”
    Availability: Always
    On Selection:

    • Toggle On: Play a narration of the current element.
    • Toggle Off: Stop playing a narration of the current element.

    When to Use: When you want to listen to the information and hear the correct pronunciation of terms.

Control the Auto-Play of Narrated Information

  • Auto-Play

  • Voice Commands: “Auto Play”
    Availability: Always
    On Selection:

    • Toggle On: Cause a narration of newly selected elements to play immediately.
    • Toggle Off: Prevent the immediate narration of newly selected elements.

    When to Use:  Turn Auto Play Element Narration on / off.

Modify and Manipulate the Element

Voice Commands: “Modify”
Availability:

  • When an element is spliced away from the others.
  • When an element is separated due to rearranging.
  • When the current object is the Heart.

On Selection: A transparent bounding box will be seen around the element to be modified. A separate interface containing the actions Move, Rotate and Resize will appear nearby.
When to Use: Each modification can be performed by tapping and holding your finger on the bounding box, and then dragging your finger in any direction.
Modifications

  • Move – Adjust the position of the current element by tapping, holding, and dragging on the bounding box.
  • Rotate – Adjust the rotation of the current element by tapping, holding and dragging on the bounding box.
  • Resize – Increase or Decrease the size of the current element by Tapping, Holding, and Dragging to the Left or Right on the bounding box.

Exit Modify Mode

Voice Commands: “Finish”, “Complete”
Availability: When modifying an element.
On Selection: Stop modifying the element and return to viewing mode.

Display the Credits

Voice Commands: “Credits”
Availability: Always
On Selection:

  • Toggle On: Display the credits for Learning Heart
  • Toggle Off: Stop displaying the credits for Learning Heart

When to Use: Display / stop displaying the credits.

Selection (Equivalent to a click/air-tap)

Voice Commands: “Select”
Availability: Gaze upon an Element or button in the interface
On Selection: Action is equivalent to a mouse click.

Elements currently available within Learning Heart

Aorta

  • Aorta

    Screenshot of the Aorta

  • Tangible & Modifiable:  Yes
    Links from: Heart
    Contains / Links to: Aortic Valve
    Description: The large vessel which carries oxygenated blood from the left ventricle of the heart to the rest of the body.

Aortic Valve

  • Aortic Valve

    Screenshot of the Aortic Valve

  • Tangible & Modifiable: Yes
    Links from: Aorta
    Description: The valve between the left ventricle and the aorta which closes when the ventricles relax to prevent back flow of blood from the aorta into the heart.

Back Section

  • Posteroinferior Aspect of the Heart

    Screenshot of the Back Section of the Heart Wall

  • Tangible & Modifiable: Yes
    Links from: Heart
    Contains / Links to: Left Coronary Artery, Right Coronary Artery, Superior Vena Cava , Inferior Vena Cava
    Description: Posteroinferior aspect of the heart is made up of three layers: epicardium, myocardium, and endocardium.

Bicuspid Valve

  • Bicuspid

    Screenshot of the Bicuspid

  • Tangible & Modifiable: Yes
    Links from: Left Ventricle
    Description: The Left Atrioventricular valve between the atrium and the ventricle on the left side of the heart, which closes during ventricular contraction to prevent back flow of blood from the ventricle into the atrium.

  • Brachiocephalic Trunk

    Tangible & Modifiable: No
    Links from: Aorta
    Description: N/A

  • Inferior Vena Cava

    Tangible & Modifiable: No
    Links from: Back Section
    Description: A large vein carrying deoxygenated blood from the lower body to the right atrium of the heart.

Front Section

  • Anterosuperior Aspect of the Heart

    Screenshot of the Front Section of the Heart Wall

  • Tangible & Modifiable: Yes
    Links from: Heart
    Contains / Links to: Left Coronary Artery, Right Coronary Artery
    Description: Anterosuperior aspect of the heart is made up of three layers: epicardium, myocardium, and endocardium.

Left Coronary Artery

  • Left Coronary Artery

    Screenshot of the Left Coronary Artery

  • Tangible & Modifiable: Yes
    Links from: Back Section, Front Section

    Description: Supplies blood to the myocardium (heart tissue) itself; that is, coronary capillaries deliver oxygenated blood (nutrients) to all of the heart’s cells. The left coronary artery and its branches supply the majority of oxygenated blood to ventricular myocardium, and additionally to the left atrium, left atrial appendage, pulmonary artery, and aortic root.

Left Ventricle

Tangible & Modifiable: Yes
Links from: Heart
Contains / Links to: Bicuspid Valve
Description: The lower left chamber of the heart which pumps oxygenated blood from the heart to the body via the aorta.

Pulmonary Trunk

  • Pulmonary Trunk

    Screenshot of the Pulmonary Trunk

  • Tangible & Modifiable: Yes
    Links from: Heart
    Contains / Links to: Pulmonary Valve
    Description: Transmits oxygen-depleted, carbon dioxide-rich blood from the right ventricle to the lungs.

Pulmonary Valve

  • Pulmonary Valve

    Screenshot of the Pulmonary Valve

  • Tangible & Modifiable: Yes
    Links from: Pulmonary Trunk
    Description: The valve between the right ventricle and the pulmonary trunk, which closes when the ventricles relax to prevent back flow of blood from the pulmonary trunk into the heart.

Right Coronary Artery

  • Right Coronary Artery

    Screenshot of the Right Coronary Artery

  • Tangible & Modifiable: Yes
    Links from: Back Section, Front Section

    Description: Supplies blood to the myocardium (heart tissue) itself; that is, coronary capillaries deliver oxygenated blood (nutrients) to all of the heart’s cells. Numerous clinically relevant arterial branches arise from the right coronary artery, including those that supply the conduction system.

  • Right Ventricle

    Tangible & Modifiable: Yes
    Links from: Heart
    Contains / Links to: Tricuspid Valve
    Description: The lower right chamber of the heart which pumps deoxygenated blood from the heart to the lungs via the pulmonary trunk.

  • Superior Vena Cava

    Tangible & Modifiable: No
    Links from: Back Section
    Description: A large vein carrying deoxygenated blood from the head, arms, and upper body to the right atrium of the heart.

Tricuspid Valve

  • Tricuspid

    Screenshot of the Tricuspid

  • Tangible & Modifiable: Yes
    Links from: Right Ventricle
    Description: The Right Atrioventricular valve between the atrium and the ventricle on the right side of the heart which closes during ventricular contraction to prevent back flow of blood from the ventricle into the atrium.

Sharing Service:

Requirements for Sharing to Work

  • Windows Computer
    Windows Computer

  • Minor Knowledge of the Command Prompt
    Minor Knowledge of the Command Prompt

  • Local Area Network / Router
    Local Area Network / Router

  • The Following Files
    The Following Files
    Download

Setup / Turning it on

Temporary Setup (Preferred)

  • Open the Command prompt.
  • Navigate to the folder where the installed root folder resides, using the change directory command followed by the full address. If saved to the desktop, it should look similar to this “cd Desktop\Sharing\Server”.
  • Once here, type “SharingService.exe -local” and press Enter.
  • The Sharing Service should now be running.
  • To Turn the sharing Service off, either close out of the command prompt by clicking the X in the top right of the window, or type “q” and press Enter.

Setup and Install as a Service

  • Open the Command prompt as an administrator
  • Navigate to the folder where the installed root folder resides, using the change directory command followed by the full address. If saved to the desktop, it would look like this
  • “cd Desktop\Sharing\Server”
    • In the command prompt, type “SharingService.exe -install” and press Enter.
      • You should see a message that the service was installed successfully.
    • In the command prompt, type “sc.exe config SharingService obj= LocalSystem password= “*LEAVE THIS EMPTY*”
    • After Installation
      • To Start the Service
  • Through the Command Prompt:
    • Type “NET start SharingService” and press Enter.
  • Or Through the Services Window:
    • Open up the Services Application Window, Right-Click on the Sharing Service and click “Start” (Image in Attachments)
      • To Stop the Service
          • Type “net stop SharingService” and press Enter.
          • Open up the services Application Window, Right-Click on the Sharing Service and click “Stop”
        • Through the Command Prompt:
        • Or Through the Services Window:
  • To uninstall
    • Through the Command Prompt:
      • Type “sc delete SharingService” and press Enter
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