NX How to define a very light density

2019-04-18T18:50:45Z
NX for Design

Summary


Details

The density in Customer Defaults can be set to 0.00001, but the density cannot 
be set to .0000000001.



Solution

The default density resides in the %UGII_BASE_DIR%\UGII\ug_modeling.dpx file. 
This is the dpx file for the Modeling application. 
In the dpx file, the validation criteria can be provided for the defaults. For 
this density default, the validation criteria is that it should be greater than 
zero.


To compare two real numbers, NX uses a tolerance value such that if the 
difference between the two values to be compared is less than or equal to the 
tolerance value, the two values are considered equal.


For this example the tolerance value is the same value that's trying to be 
entered i.e. 0.0000000001 (1 e-10). The difference between this value and zero 
is equal to 0.0000000001. Therefore, according to the above criteria, this 
value is equal to zero. But, this violates the validation criteria and an error 
message is displayed by the framework.


The density has to be entered in the customer defaults as scientific 
notation. If this value is incremented such that it is made (1.1 e-10), the 
value for density can be set successfully.


To set the Customer Default for density: 
1. Select 'File-->Utilities-->Customer Defaults'. 
2. Expand 'Modeling' and highlight 'Solid Modeling'. 
3. On the 'Mass and Density' tab, enter the density as shown above: 
 1.1 e-10 
4. OK the Customer Defaults dialog. 
5. Exit and re-start NX.



Notes and References


Hardware/Software Configuration

Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: GATEWAY
Version: V10.0
Function: CUSTOMER_DEFS

Ref: 001-2116316

KB Article ID# PL8010976

Contents

SummaryDetails

Associated Components

Modeling