FAQ Category Archives: Geometry

What are my choices to rotate, zoom, and pan to view my model?

These choices are described in Appendix 1.

How can I view my model in a MS Terminal Server window?

From version 5.2 upwards IES is using OpenGL for rendering the model display area. This has had many benefits for providing better model and analysis display, however, OpenGL does require more than 256 colors. The MS Terminal Server window only uses 256 colors, hence, it will be very difficult to obtain meaningful displays. One option […]

How are you sure of proper contact of two volumes in 3D programs?

Consider a simple example of a small cube placed over a big cube. If these two volumes are in proper contact, they would have an unique surface in common. In the Fig. 1a shown below, it appears that the two volumes are in proper contact, but they are not. The easiest way to verify whether […]

How can I draw a model without overlapping surfaces?

Whether you import a model from a CAD package or draw it in IES software, it is important that the drawing be physically realistic. Many things that are easy to draw, or which may be drawn to facilitate manufacturing (e.g. a cylinder “force-fit” to a hole, being slightly larger than the hole it is being […]

What are the limitations of Define Surface?

In version 6.0 of our 3D programs we introduced NURBS for easier definition of more general surfaces. However, we also still permit users to define surfaces from a Coons Patch routine based on the bounding segments of the surface. A basic description of each is given in Advantages of NURBS in CAE Modeling – this […]

Explain periodic modeling.

The periodic modeling features allow customers to take advantage of linear or angular periodic properties of their devices by modeling only the periodic portion of the device. This capability greatly simplifies model design time and significantly reduces model analysis time by up to 90% without sacrificing accuracy. Step 1: Create the model’s periodic portion by […]

Why do I get an error message Unable to Connect to Pro/Engineer?

There are two reasons you may see the error message shown to the right: You have not yet configured the Pro/E environment variable. For a description of how to do this, see How do I use the direct import from PRO-E?. You may be hitting a Pro-E bug which causes CAD links to “time-out” on […]

How do I use the direct import from PRO-E?

The import from PRO-E requires an environment variable to be set up. from your desktop Start menu choose Control Panel click on the System icon Choose the Environment Variables tab (depending on your Windows version this may be under “Advanced”). Setup a new variable with properties as shown below, with a value appropriate to your […]

How do I use the direct import from SDRC IDEAS?

The import from SDRC IDEAS requires an intermediate program to be launched from the SDRC “Additional Applications” launcher. The icon circled to the left will bring up the dialog box shown. Type in the program name as shown, then within your IES software chooseFile>Import>SDRC IDEAS and select in SDRC-E the part to import. After each […]

What IGES Export options do you recommend for SolidWorks?

Export Options from SolidWorks save as dialog box.

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