Creo Elements/Direct 3D Access lets you visualize parts and assemblies in perspective. This is particularly important in the design stage to get a more realistic view of the solid model.
In this section:
• To open the View Settings dialog box
• To change to perspective viewing
• To change the perspective view dynamically
◦ Example: Specifying the field of view
To open the View Settings Dialog Box
1. Right-click the viewport and select Viewport Properties. The Vport dialog box opens.
2. Under Projection, click Settings. The View Settings dialog box opens.
The viewing options available are:
From Pt
This is the point from which you view the model. It is the same as the eye point. The closer the point is to the model, the greater the distortion. The From Pt cannot be inside the model. To specify the from point, click From Pt and enter coordinate points in the user input line.
To Pt
This is the point to which the view diminishes. The default value is in the center of the model. The closer the point is to the eye point, the greater the distortion.
Distance
This is the distance between the From Pt and the To Pt. As the distance becomes smaller, the perspective view becomes stronger.
Field View
Use this option to set the field of view. This is similar to changing the camera objective angle. The value for the angle is between 1 and 179 degrees. Increasing the angle moves the model away from you.
Refresh
Use this option to refresh the menu (some situations may arise when the menu values are out-of-sync with the camera position).
When viewing a part in perspective, you can do machining, modifying, or other operations on the part. However, be careful when doing so as the perspective view may, for example, exaggerate how a tapered edge looks.
You can reset the values by clicking Fit on the Status Bar.
From Point, To Point, Distance
Item
Description
1
From Point
2
To Point
3
Viewing Direction
4
Distance between From Pt and To Pt.
To change to perspective viewing
1. Open the Vport dialog box.
2. Click Perspective under Projection. Creo Elements/Direct 3D Access displays the active viewport in perspective mode. To return to normal viewing, click Parallel under Projection.
You may need to use File > Customize to add Dynamic to your toolbars.
2. Click icon number 9 (above the sliding bar) and move the sliding bar horizontally.
3. Click to keep the positions and close the menu.
You can change the perspective view absolutely by clicking the perspective icon directly and entering a value. The entered value is used to calculate the distance between the camera position and the reference point. A positive factor increases the distance and a negative factor decreases the distance. For best results, adjust the perspective view dynamically because you get graphical feedback of the view as it changes.
Example: Specifying the field of view
1. Open the Vport dialog box.
2. Pin the dialog box in position.
3. Click Perspective under Projection.
4. Under Projection, click Settings. The View Settings dialog box opens.
5. Click Field View.
6. Enter 30 in the user input line (or in the Field View box). Creo Elements/Direct 3D Access displays the active viewport in perspective mode at the specified viewing angle.
You can reset the values by clicking Fit on the Status Bar.
Fit on the Status Bar.
Dynamic. The Knobs dialog box opens.
to keep the positions and close the menu.