visual3d:tutorials:modeling:building_a_model
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| visual3d:tutorials:modeling:building_a_model [2024/07/16 19:33] – created sgranger | visual3d:tutorials:modeling:building_a_model [2024/07/17 15:46] (current) – created sgranger | ||
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| A **calibration file** (often referred to as a **Standing Trial** or a **Static Trial**) is a short motion capture of the subject in a stationary pose. Marker positions are averaged automatically over all frames to compensate for noise in the data. **NOTE:** If the subject moved during the standing trial, a subset of frames, in which the subject is stationary, can be selected for computing the average locations of the markers. The command **Modify Frame Range For Static Calibration** is located in the **Model** Menu items.\\ | A **calibration file** (often referred to as a **Standing Trial** or a **Static Trial**) is a short motion capture of the subject in a stationary pose. Marker positions are averaged automatically over all frames to compensate for noise in the data. **NOTE:** If the subject moved during the standing trial, a subset of frames, in which the subject is stationary, can be selected for computing the average locations of the markers. The command **Modify Frame Range For Static Calibration** is located in the **Model** Menu items.\\ | ||
| - | {{tutorial1_1.gif}}\\ | + | {{:tutorial1_1.gif}}\\ |
| In this figure, **Anatomical markers** are placed at anatomically relevant locations (e.g. palpable bony landmarks near segment endpoints). **Tracking markers** are placed at convenient locations for tracking the segments. Suggested rules for marker placement on rigid clusters is described in the following article: | In this figure, **Anatomical markers** are placed at anatomically relevant locations (e.g. palpable bony landmarks near segment endpoints). **Tracking markers** are placed at convenient locations for tracking the segments. Suggested rules for marker placement on rigid clusters is described in the following article: | ||
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| What you see in the 3D viewer varies with the viewing options you select.\\ | What you see in the 3D viewer varies with the viewing options you select.\\ | ||
| - | {{tutorial1_7.jpg}}\\ | + | {{:tutorial1_7.jpg}}\\ |
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| == View Segments: == | == View Segments: == | ||
| - | Clicking the **View** Segments toggle {{ShowBonesButton.jpg}} button will toggle on and off the model files assigned to the segments. The model files are wire frame objects formatted as either a //.v3g// or //.obj// file or a VRML //.wrl// file. The model file is usually a representation of the bone(s) used for the 3D animation. In the example the model file is a 3D representation of the pelvis bone. | + | Clicking the **View** Segments toggle {{:ShowBonesButton.jpg}} button will toggle on and off the model files assigned to the segments. The model files are wire frame objects formatted as either a //.v3g// or //.obj// file or a VRML //.wrl// file. The model file is usually a representation of the bone(s) used for the 3D animation. In the example the model file is a 3D representation of the pelvis bone. |
| - | {{tutorial1_12.jpg}} | + | {{:tutorial1_12.jpg}} |
| **Note:** The 3D animation object is purely for visualization. You can rotate, scale or move the bones relative to the segment coordinate system and it will not affect the analysis. | **Note:** The 3D animation object is purely for visualization. You can rotate, scale or move the bones relative to the segment coordinate system and it will not affect the analysis. | ||
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| == View Segment Geometry: == | == View Segment Geometry: == | ||
| - | To view the geometry click the **View Segment Geometry** toggle button {{GeometryToggle.jpg}} on the toolbar. | + | To view the geometry click the **View Segment Geometry** toggle button {{:GeometryToggle.jpg}} on the toolbar. |
| - | {{tutorial1_10.jpg}} | + | {{:tutorial1_10.jpg}} |
| * The width of the cylinder is defined by the endpoint radii of the segment. | * The width of the cylinder is defined by the endpoint radii of the segment. | ||
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| View segment lines allows you to view a "stick figure" | View segment lines allows you to view a "stick figure" | ||
| - | click the **View Segment Lines** {{SegmentToggle.jpg}} toggle button. | + | click the **View Segment Lines** {{:SegmentToggle.jpg}} toggle button. |
| The yellow segment lines displayed are: | The yellow segment lines displayed are: | ||
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| Start -> Programs -> C-Motion -> Visual3D Create a new model using the standing trial | Start -> Programs -> C-Motion -> Visual3D Create a new model using the standing trial | ||
| - From the **Model** menu, select **Create - Hybrid Model from C3D file.**\\ | - From the **Model** menu, select **Create - Hybrid Model from C3D file.**\\ | ||
| - | {{tutorial1_2.jpg}}\\ | + | {{:tutorial1_2.jpg}}\\ |
| - Select **Visual3D Hybrid Model.** | - Select **Visual3D Hybrid Model.** | ||
| - A dialog titled ”Select the calibration file for the new model” will appear;\\ | - A dialog titled ”Select the calibration file for the new model” will appear;\\ | ||
| select ”Lower Body Static Trial.c3d.” Click **Open.**\\ | select ”Lower Body Static Trial.c3d.” Click **Open.**\\ | ||
| - | {{tutorial1_3.png}}\\ | + | {{:tutorial1_3.png}}\\ |
| - Visual3D will switch to Model Building mode automatically. The 3D viewer will display the average value of the marker locations from the standing file. The dialog bar to the left of the screen will contain a list of segments, which by default will contain only a segment representing the Laboratory (e.g. Motion Capture Volume).\\ | - Visual3D will switch to Model Building mode automatically. The 3D viewer will display the average value of the marker locations from the standing file. The dialog bar to the left of the screen will contain a list of segments, which by default will contain only a segment representing the Laboratory (e.g. Motion Capture Volume).\\ | ||
| - | {{tutorial1_4.jpg}}\\ | + | {{:tutorial1_4.jpg}}\\ |
| **Note:** Your screen may look slightly different.\\ | **Note:** Your screen may look slightly different.\\ | ||
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| * Clicking an individual marker highlights it and displays a label with its name and location. Clicking it again will unhighlight it and remove the label. | * Clicking an individual marker highlights it and displays a label with its name and location. Clicking it again will unhighlight it and remove the label. | ||
| - | * The {{TID.jpg}} button toggles between marker numbers, marker names, and no annotation. | + | * The {{:TID.jpg}} button toggles between marker numbers, marker names, and no annotation. |
| === Creating the Pelvis Segment === | === Creating the Pelvis Segment === | ||
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| - From the **Segment Name** box, select //Pelvis.// | - From the **Segment Name** box, select //Pelvis.// | ||
| - From the **Segment Type** box, select // | - From the **Segment Type** box, select // | ||
| - | {{tutorial1_5.jpg}}\\ | + | {{:tutorial1_5.jpg}}\\ |
| - Click **Create.** | - Click **Create.** | ||
| - A dialogue box labeled Enter Body Mass and Height will open because Visual3D needs the subject to be assigned a mass and a height. For this example, Enter //48.6// kg and //1.57// m, and click **OK.**\\ | - A dialogue box labeled Enter Body Mass and Height will open because Visual3D needs the subject to be assigned a mass and a height. For this example, Enter //48.6// kg and //1.57// m, and click **OK.**\\ | ||
| - | {{tutorial1_6.png}}\\ | + | {{:tutorial1_6.png}}\\ |
| - In the **Pelvis** tab, enter these values: | - In the **Pelvis** tab, enter these values: | ||
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| - **Depth:** //0.14000// (Physical depth of the pelvis; Mid ASIS to Mid PSIS) | - **Depth:** //0.14000// (Physical depth of the pelvis; Mid ASIS to Mid PSIS) | ||
| - Click **Build Model** to build the segment. You should now see a pelvis segment on your standing model. If you do not see the pelvis segment after clicking **Build Model**, double check the values you entered in the last step.\\ | - Click **Build Model** to build the segment. You should now see a pelvis segment on your standing model. If you do not see the pelvis segment after clicking **Build Model**, double check the values you entered in the last step.\\ | ||
| - | {{tutorial1_22.jpg}}\\ | + | {{:tutorial1_22.jpg}}\\ |
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| **Note:** Each of the view buttons is a toggle button and will either toggle on or off a particular view. | **Note:** Each of the view buttons is a toggle button and will either toggle on or off a particular view. | ||
| - | - Click the **Views Segment** toggle button {{ShowBonesButton.jpg}} on the toolbar until the pelvis bone disappears (the same effect can be achieved by pressing F5 on your keyboard).\\ | + | - Click the **Views Segment** toggle button {{:ShowBonesButton.jpg}} on the toolbar until the pelvis bone disappears (the same effect can be achieved by pressing F5 on your keyboard).\\ |
| - | {{tutorial1_8.jpg}}\\ | + | {{:tutorial1_8.jpg}}\\ |
| - | - Click the **Views Segment Geometry** toggle button {{GeometryToggle.jpg}} on the toolbar until you toggle off geometric view the pelvis (the same effect can be achieved by pressing F7 on your keyboard).\\ | + | - Click the **Views Segment Geometry** toggle button {{:GeometryToggle.jpg}} on the toolbar until you toggle off geometric view the pelvis (the same effect can be achieved by pressing F7 on your keyboard).\\ |
| **Note:** If you have followed this tutorial exactly this view may already be off. | **Note:** If you have followed this tutorial exactly this view may already be off. | ||
| - | Click the **Views Segment Lines** toggle button {{SegmentToggle.jpg}} on the toolbar until you toggle off the yellow lines which connect the segment end points. | + | Click the **Views Segment Lines** toggle button {{:SegmentToggle.jpg}} on the toolbar until you toggle off the yellow lines which connect the segment end points. |
| === Segment Properties === | === Segment Properties === | ||
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| - To modify the properties, make the desired change in the dialog. | - To modify the properties, make the desired change in the dialog. | ||
| - Click **Apply.**\\ | - Click **Apply.**\\ | ||
| - | {{tutorial1_9.jpg}}\\ | + | {{:tutorial1_9.jpg}}\\ |
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| - Set the **Horizontal Rotation** to //180// | - Set the **Horizontal Rotation** to //180// | ||
| - Click **OK** to accept the new rotation value and close the window.\\ | - Click **OK** to accept the new rotation value and close the window.\\ | ||
| - | {{tutorial1_13.jpg}}\\ | + | {{:tutorial1_13.jpg}}\\ |
| - Restore the pelvis image before proceeding: | - Restore the pelvis image before proceeding: | ||
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| - Click **Build Model.** A 3D image of a thigh will appear.\\ | - Click **Build Model.** A 3D image of a thigh will appear.\\ | ||
| **Note:** If you receive an error message about inertial properties and custom segments, you may have entered an incorrect number for the proximal radius.\\ | **Note:** If you receive an error message about inertial properties and custom segments, you may have entered an incorrect number for the proximal radius.\\ | ||
| - | {{tutorial1_14.jpg}} | + | {{:tutorial1_14.jpg}} |
| - Click **Close Tab** before proceeding.\\ | - Click **Close Tab** before proceeding.\\ | ||
| **Note:** Closing the tab will not affect the model in any way. | **Note:** Closing the tab will not affect the model in any way. | ||
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| - In the **Segments** tab, select //Right Shank// in the Segment Name box. | - In the **Segments** tab, select //Right Shank// in the Segment Name box. | ||
| - Click on the **Create Segment** button.\\ | - Click on the **Create Segment** button.\\ | ||
| - | {{tutorial1_15.jpg}}\\ | + | {{:tutorial1_15.jpg}}\\ |
| - In the **Right Shank** tab, enter these values:\\ | - In the **Right Shank** tab, enter these values:\\ | ||
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| - In the **Segments** tab, select //Right Foot// in the Segment Name box. | - In the **Segments** tab, select //Right Foot// in the Segment Name box. | ||
| - Click on the **Create Segment** button.\\ | - Click on the **Create Segment** button.\\ | ||
| - | {{tutorial1_16.jpg}}\\ | + | {{:tutorial1_16.jpg}}\\ |
| - In the **Right Foot** tab, enter these values:\\ | - In the **Right Foot** tab, enter these values:\\ | ||
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| === Create the Left Thigh Segment === | === Create the Left Thigh Segment === | ||
| - | {{tutorial1_17.jpg}} | + | {{:tutorial1_17.jpg}} |
| - In the **Segments** tab, select //Left Thigh// in the **Segment Name** box. | - In the **Segments** tab, select //Left Thigh// in the **Segment Name** box. | ||
visual3d/tutorials/modeling/building_a_model.1721158427.txt.gz · Last modified: 2024/07/16 19:33 by sgranger