*setqualitycriteria

Defines the current element quality criteria via flexible string input.

Syntax

*setqualitycriteria string_array number_of_strings mode

Type

HyperMesh Tcl Modify Command

Description

Defines the current element quality criteria via flexible string input. This may be useful for autocleanup, interactive QI meshing, QI node optimization, element cleanup, etc...

Inputs

string_array
The ID of the string array that contains the element quality criteria information. The string array is created using the *createstringarray command. This should always be set to 1.
There are two types of strings, quality parameters and threshold penalty values.
The 13 quality parameter strings have the following structure: 
?line_number? tag switch weight ideal good warn failed worst ?method?
line_number(optional)
Line number.
tag
The unique parameter tag. Valid values are:
  • min length
  • max length
  • aspect ratio
  • warpage
  • max angle quad
  • min angle quad
  • max angle tria
  • min angle tria
  • skew
  • jacobian
  • chordal dev
  • taper
  • % of trias
switch
0 - Disables
1 - Enables the parameter.
weight
The dimensionless parameter weight in the composite quality index (1.0 is default).
ideal good warn fail worst
A sequence of parameters value thresholds defining the start value of the corresponding parameter range. The sequence should be monotonic, either increasing or decreasing according to the specific parameter.
method (optional)
The method solver ID used for calculation of the parameter. See the list of the methods IDs in the description of *elementchecksettings command. If the method is omitted, then the default method is applied.
The threshold penalty string has the following structure:
?line_number? tag ideal_rate good_rate warn_rate fail_rate worst_rate
line_number (optional)
Line number.
tag
The string 'penalty value'.
ideal_rate good_rate warn_rate fail_rate worst_rate
A non-decreasing sequence of dimensionless ratings corresponding to the parameters' thresholds and used for calculation of the composite quality index by each parameter value. The default penalties values are 0.0, 0.8, 1.0, 10.0. It is not recommended to change the ratings for ideal and fail thresholds from the default values.
number_of_strings
Integer indicating the size (number of strings) in the string array created using *createstringarray.
mode
0 - The criteria are reset completely for all the elements quality parameters. Any omitted parameters are disabled.
1 - The criteria data are changed only for the input elements quality parameters. Any omitted parameters remain unchanged.

Examples

Completely reset the quality criteria using default methods:

*createstringarray 14 \
" 0 penalty value      0.00    0.00    0.80    1.00   10.00" \
" 1 min length        1 1.0   3.000   2.749   1.502   1.000   0.749  1" \
" 2 max length        1 1.0   3.000   3.600   4.500   6.000   9.000  0" \
" 3 aspect ratio      1 1.0   1.000   2.000   4.400   5.000  10.000  0" \
" 4 warpage           1 1.0   0.000   5.000  13.000  15.000  30.000  0" \
" 5 max angle quad    1 1.0  90.000 110.000 134.000 140.000 160.000  0" \
" 6 min angle quad    1 1.0  90.000  70.000  46.000  40.000  20.000  0" \
" 7 max angle tria    1 1.0  60.000  80.000 112.000 120.000 150.000  0" \
" 8 min angle tria    1 1.0  60.000  50.000  34.000  30.000  15.000  0" \
" 9 skew              1 1.0   0.000  10.000  34.000  40.000  70.000  0" \
"10 jacobian          1 1.0   1.000   0.900   0.700   0.600   0.300  0" \
"11 chordal dev       0 1.0   0.000   0.300   0.800   1.000   2.000  0" \
"12 taper             1 1.0   0.000   0.200   0.500   0.600   0.900  0" \
"13 % of trias        1 1.0   0.000   6.000  10.000  15.000  20.000  0"
*setqualitycriteria 1 14 0
Reset aspect ratio and skew thresholds using ANSYS (solver 9) methods. Keep all other criteria unchanged:
*createstringarray 2 "aspect ratio 1 1.0 1.000 1.500 3.000 4.000 10.000 9" "skew 1 1.0 0.000 8.000 30.00 35.00 60.000 9"
*setqualitycriteria 1 2 1

Errors

Incorrect usage results in a Tcl error. To detect errors, you can use the catch command:
if { [ catch {command_name...} ] } {
   # Handle error
}

Version History

14.0