## Mirroring

In this section, create a shield by using [Mirroring] to create a symmetric object.

Please create a new document.

### Preparation : Top view

In the past pages, you created objects in the Perspective view.

You create a base part of a shield by using Top view and Grid.

Please click the layout icon in the View header, and select the [Top] menu.

The view has been changed the Top view.

Switch the [Fc] button for the Top view on.

You can also change to an orthogonal view by clicking the title in the View header, and adjust the view angle in the View Panel.

### Preparation : Grid

Click [Snap] in the [Edit Option], and select [Grid].

Click icon on [Grid] side, and [Set Grid] dialog will be opened.

Change [Interval] to [2.50], and push [OK] button.

Please scale the view to display scales by 10 intervals like the following image.

### Setting of Mirroring

Click [Prop] button in Object Panel. Object Panel will be opened.

Rename [obj1] to [shield].

Please select [Separated] in [Mirroring], and push [Close] button.

### Create a base part (1)

You create a base part of a shield by using [Create] command.

Select the [Create] command. And confirm [Quadrangle] is active in the Sub panel.

Begin to create a quadrangle in the green zone in the Top view in the following image.

Please click four times like drawing a quadrangle. A quadrangle will be created. Call this face "Face A".

Click first and second points |  | Click third point |  | Click fourth point, and a quadrangle is created.

Note: A vertex is placed by the interval of the grid because [Grid] option is on.

A quadrangle is displayed as a mirror at the opposite side at the same time that "Face A" is created.

A mirroring object is displayed in real time by specifying in the Object Property. Data exist in the single side only, and display on both sides. Symmetry is always ensured.

A shield is symmetric, and mirroring is effective.

### Create a base part (2)

Continue to create a base part by using [Create] command.

Create a quadrangle ("Face B") like the following image. In this time, a vertex in the Face B shares with the Face A.

Click the vertex in the face A |  | Share a vertex with a face A |  | Create a face B

Click [Polygon] in the Sub panel.

Create a new pentagon includes a shared vertex with the Face A and the Face B. This new face is named "Face C".

Create a polygon sharing with vertices.
Create a face shared a vertex with Face A and Face B. |  | Click the final 5th point. |  | Click a right button after the last point is put. |

You can select [Line], [Triangle], [Quadrangle] and [Polygon] in the Sub panel.

### Create a base part (3)

Now create faces from D to I.

Create faces by using [Create] command like the following image.

[Fc] button in the View header is off in the left image. A Black character is drawn on a quadrangle, and a red character is drawn on a polygon.

Create faces from D to I. |  | Finished

[Grid] is effective to create an object consisting of lines.

### Assign a material to faces

Click [Clone] button in the Material Panel twice, and there are 3 materials in the Material Panel.

Rename 3 materials and change colors in the same way described in doughnut page.

Prepare 3 materials by [Clone] |  | Rename and change colors

Select [Material] command.

Select "shield mark" in the Material Panel, and click a face in the view.

The current material is assigned to the clicked face.

When a mouse cursor is on a face, it becomes yellow. |  | The current material is assigned.

Please assign a material "shield mark" and a "shield-B" to faces like the following image.

### Freeze mirroring

Call [Menu > Object > Freeze].

The object becomes a non-mirror one by [Freeze], and vertices are also displayed on the left side of the shield.

Note: Confirm the [Mirroring] setting in the Object Property after freezing.

Thus, mirroring is very efficient to create symmetric shape.

### Symmetry editing

You can edit a shape with keeping symmetry by [Sym] (Symmetric edit) after freezing.

Switch [Sym] in the [Edit Option] on.

Select [Move] command.

Select a face described in the following image, and move it. Symmetry face in the red circle was moved together.

Select a face in [Move] command. |  | Drag a handle. |  | Move a face, and a symmetric pair of a face will be moved together.

Symmetry edit finds symmetric pair of a vertex and a face, and modifies it together.

Switch [Sym] button off.

### Finish

The following operations are performed in the Perspective view.

Click the layout icon in the View header, and select [Pers] menu to change the layout to a perspective view.

Now you make a shield-mark thick.

Call [Menu > Edit > Select all].

Select [Extrude] command, and extrude all faces.

After selecting all faces, select [Extrude] command. |  | Drag any face |  | Extrude a whole shield..

Select [Select] command.

Unselect four faces assigned the material "shield B" by clicking with Shift key.

The yellow zone is selected. (This image is not an actual display but a composite image for an explanation.)

Make them more thick by using [Extrude] command. Faces assigned "shield-A" or "shield-mark" are extruded.

Select [Select] command, and click 6 faces assigned the material "shield-mark" with Shift key one by one to unselect them.

Only faces assigned "shield-A" are selected.

The yellow zone is selected. (This image is not an actual display but a composite image for an explanation.)

Finally, make a thickness by using [Extrude] command. A top of the "shield-A" is extruded.

### Completed

A shield has been completed.

This model does not have a backside of faces. You can create it by [Create] command or [Hole] command.

You have been finished all the easy tutorials.

Create a cactus |