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<BODY><TITLE>%mqc_pdq_tiny_patch</TITLE><H1>%mqc_pdq_tiny_patch  </H1><P CLASS="Paragraph">Classname: <B>%mqc_pdq_tiny_patch  </B></P><P CLASS="Paragraph">Inherits from: <B><A href=..\checkmate\xug_base_checker.html>%ug_base_checker </A></B></P><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"> </PRE><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  DOCUMENTATION</PRE><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">
<B>Description:</B>
    This checker checks the ratio of the linear patch sizes of two adjacent patches in all
    possible parametric direction combinations.
    One patch should not be significantly narrower than neighboring patches. Such size ratios
    are a sign of poor partitioning. They may cause problems in mesh generation and surface
    modification.
    Recommendation: Narrow patches should be avoided or made redundant through suitable
    enlargement and division of the neighboring elements and then subsequently deleted.
Reference:
    SASIG-PDQ Criteria Code: Relatively Narrow Neighboring Surface or Patch (G-SU-RN).
Parameters:
    ************************* Geometry Identification *************************
    ( List )  filter             - This parameter is used to display filter
                                   option button in checker customization dialog.
                                   This parameter is also used to collect entities
                                   selected by the class selection dialog.
                                   If Solid_Body or Sheet_Body is selected, the
                                   checker will collect all faces of these bodies
                                   to validate their edges.
                                   Default is empty.
    ( Name )  filter_type_mode   - This parameter is used to set entity type filter mode
                                   which can be Include or Exclude.
                                   Include - Collect entities with the specified entity
                                             types in the list filter_type_filter.
                                   Exclude - Collect entities without the specified entity
                                             types in the list filter_type_filter.
                                   Default is Include.
    ( List )  filter_type_filter - This Parameter is used to collect the entity types
                                   for entity type filter.
                                   It can be a list of entity type names
                                   For example: {Face, Solid_Body, Sheet_Body }
                                   Default is {Face, Solid_Body, Sheet_Body}.
    ( Name )  filter_layer_mode  - This parameter is used to set layer filter mode
                                   which can be Include or Exclude.
                                   Include - Collect entities with the specified
                                             layers in the list filter_layer_filter.
                                   Exclude - Collect entities without the specified
                                             layers in the list filter_layer_filter.
                                   Default is Include.
    ( List )  filter_layer_filter- This Parameter is used to collect the layers
                                   for layer filter.
                                   It can be a list of layers string or category
                                   name string, For example: {"8,10-12", "SOLID"}
                                   Default is {ALL}.
    ( Name )  filter_color_mode  - This parameter is used to set color filter mode
                                   which can be Include or Exclude.
                                   See filter_layer_mode.
                                   Default is Include.
    ( List )  filter_color_filter- This parameter is used to collect the colors
                                   for color filter.
                                   It can be a list of color RGB,
                                   such as {{255,0,0},{102,102,102}},
                                   or color index, such as {1,2,3}
                                   Default is {ALL}.
    ( Any )filter_class_selection- This parameter is used to add a class selection
                                   dialog for the user to select face or solid objects.
                                   The available entity types are set by the entity type
                                   filter parameter filter_type_filter.
    ( Boolean) check_invisible_layers
                                   This parameter is used to determine to check the entity
                                   on invisible layers or not.
                                   Default is False.
    1. If selection list is empty, and the filter setting is default,
       checker will collect all faces in part to validate.
    2. If selection list is empty, and the filter setting is not default,
       checker will use filter option to collect faces to validate.
    3. If selection list is not empty, and the filter setting is default,
       checker will validate faces in the selection list.
    4. If selection list is not empty, and the filter setting is not default,
       checker will use intersection of selection and filter option to
       collect faces to validate.
    ****************************    Unit Option    ****************************
    (Name)    unit            - Unit for the distance tolerance. Can be:
                                    grams_and_millimeters
                                    pounds_and_inches
                                Default is grams_and_millimeters
    *************************** Validation Criteria ***************************
    (Number)  absolute_tolerance
                              - Absolute distance tolerance.
                                Default is 0.001.
    (Number)  relative_tolerance
                              - Relative distance tolerance.
                                Default is 0.001.
    (Boolean) segment_check   - True: Check the area of the surface and patch
                                False: Only check the area of the surface
                                Default is False.
    (Integer) u_sample_point  - Number of sample points per segment
                                in U direction.
                                Default is 10.
    (Integer) v_sample_point  - Number of sample points per segment
                                in V direction.
                                Default is 10.
    ***************************  Topology Tolerance ***************************
    (Number)  distance        - Topological distance tolerance.
                                Default is 0.1.
    (Number)  tangent_angle   - Topological angle tolerance.
                                Unit is degrees.
                                Default is 30 degrees.
    (Number)  curvature       - Topological curvature tolerance
                                Default is 2.
    (Integer) edge_curve_points
                              - Number of edge curve points for evaluating
                                the topology.
                                Default is 10.
    ***************************     Log Setting     ***************************
    (Name)    log_type        - Indicate which logging type to use to report
                                the violation.
                                    LOG_ERROR
                                    LOG_WARNING
                                    LOG_INFO
                                Default is LOG_ERROR
    (String)  log_msg         - User defined message to be added when the system
                                reports the violation.
                                Default is an empty string.
    ***************************        Others       ***************************
    (Boolean) disabled?       - If it is true, the checker is disabled.
                                Default is False.
    (Boolean) save_log_in_part- The flag indicates whether the checking results
                                can be saved to the part file.
                                Default is True.
Results:
    PASS    --    no faces violate the constraint.
    FAIL    --    found faces that violate the maximum polynomial degrees.
UG objects logged:
    B-Surfaces that violate the tiny patch checking criteria.
</PRE><PRE><FONT COLOR= blue>DefClass: %mqc_pdq_tiny_patch ( %ug_base_checker );
</FONT></PRE><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Check-Mate Attributes and Parameters</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )  %test_category: "SASIG-PDQ.Surfaces (G-SU)";
    ( String )  %displayed_name: "Relatively narrow neighboring patches (G-SU-RN)";

</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Boolean Parameter )    Disabled?: False;
    ( Boolean Parameter )    save_log_in_part: True;
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Checker specific Attributes and Parameters</PRE><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Parameter for Unit</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Name Parameter )      unit: grams_and_millimeters ;
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Checker specific Attributes and Parameters</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( List )                unit_option:{grams_and_millimeters, pounds_and_inches};
    ( String )              unit_label: "Unit";
    
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              abs_tol_label: "Absolute Tolerance (G-SU-NA)";

</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              rel_tol_label: "Relative Tolerance (G-SU-RN)";
    
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Number Parameter )    abs_tol: 0.001;
    ( Number Parameter )    rel_tol: 0.001;
    ( Boolean Parameter )   segment_check: FALSE;
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Geometry Selection and Filters</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              segment_check_label: "Segment Check";
    
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              filter_label: "Filter Methods";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String Parameter)     filter_begin_group: "Geometry Identification";
    ( List Parameter )      filter: {};
    ( Name Parameter )      filter_Type_Mode: Include;
    ( List Parameter )      filter_Type_Filter: {Face, Solid_Body, Sheet_Body};
    ( Name Parameter )      filter_Layer_Mode: Include;
    ( List Parameter )      filter_Layer_Filter: {ALL};
    ( Name Parameter )      filter_Color_Mode: Include;
    ( List Parameter )      filter_Color_Filter: {ALL};
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Check invisible Layers or not</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Any )                 filter_Class_Selection: "Selections";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              check_invisible_layers_label: "Check Invisible Layers";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Boolean Parameter )   check_invisible_layers: False;
    ( Any Parameter  )      filter_end_group:;
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Sample Points Parameter</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              u_sample_point_label: "In u-direction";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              v_sample_point_label: "In v-direction";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String Parameter  )   sample_points_begin_group: "Number of Sample Points";    
    ( Integer Parameter )   u_sample_point: 10;
    ( Integer Parameter )   v_sample_point: 10;
    ( Any Parameter     )   sample_points_end_group:;    
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Topological tolerances    </PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              distance_label: "Distance";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              tangent_angle_label: "Tangent Angle (Degrees)";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              curvature_label: "Curvature";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              edge_curve_points_label: "Number of Edge Curve Points";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String Parameter )    topo_begin_group: "Topological Tolerances";
    ( Number Parameter )    distance: 0.1;
    ( Number Parameter )    tangent_angle: 30;
    ( Number Parameter )    curvature: 2.0;
    ( Integer Parameter )   edge_curve_points: 10;
    ( Any Parameter     )   topo_end_group:;
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Log attributes and parameters</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Boolean )             log_detail: False;
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( List )                log_type_option: { LOG_ERROR, 
                                               LOG_WARNING, 
                                               LOG_INFO };
    ( String )              log_type_label: "Log Option";
</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Name Parameter )      log_type: LOG_ERROR;
    ( String Parameter )    log_msg: "";
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Logical attribute to judge if using filter system of validation function</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( String )              log_msg_label: "Log Message";

</SPAN></FONT></PRE></DIV><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( Boolean )             apply_filter?: 
                            if( ((filter_Type_Mode: = Include & filter_Type_Filter: = {ALL}) |
                                 (filter_Type_Mode: = Include & filter_Type_Filter: = allowed_entity_types:) |
                                 (filter_Type_Mode: = Exclude & filter_Type_Filter: = {}) ) &   
                                (!mqc_applyFilter?( filter_Layer_Mode:, filter_Layer_Filter:, 
                                                    filter_Color_Mode:, filter_Color_Filter: ) ))
                            then false
                            else true;

    ( List )                layer_filters:
                            If ( !check_invisible_layers: )
                            Then
                            @{
                                $filter_layers  << mqc_parse_layerSpecification( filter_Layer_Filter: );
                                $invisble_layers << Nth( 4, mqc_askLayerInfo() );
                                {mqc_convertIntegerListToString(SetDifference( $filter_layers, $invisble_layers ))};
                            }
                            Else filter_Layer_Filter:;

</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">  Attributes for faces collection and selection</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    ( List )                allowed_entity_types: {Face, Solid_Body, Sheet_Body}; 
    ( List )                entities_collection:
                                #Collect faces, bodies with layer, color filters.
                                mqc_collectEntitiesWithFilterOptions( 
                                    Include, If (filter_Type_Mode: = Include)
                                             Then filter_Type_Filter:
                                             Else SetDifference(allowed_entity_types:,filter_Type_Filter:),
                                    filter_Layer_Mode:,layer_filters:,
                                    filter_Color_Mode:,filter_Color_Filter: );

    ( List )                entities_selection:
                                mqc_convertHandlesToTags ( filter: );

    ( List )                face_list:
                                If ( (check_invisible_layers:) & Empty?(filter:) & (!apply_filter?:) )
                                Then {True, {}}  # Check All in Parts
                                Else If ( (!check_invisible_layers:) & Empty?(filter:) & (!apply_filter?:) )
                                Then {False, entities_collection:}
                                Else If ( Empty?(filter:) & apply_filter?: )
                                Then {False, entities_collection:}
                                Else If ( (!Empty?(filter:)) & (!apply_filter?:) )
                                Then {False, entities_selection:}
                                Else If ( (!Empty?(filter:)) & apply_filter?: )
                                Then {False, SetIntersection(entities_collection:, entities_selection:)}
                                Else {False, {}};
 
</SPAN></FONT></PRE></DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\">   Checker function</PRE><DIV><PRE STYLE=\"text-align : left;\" CLASS=\"Code\"><FONT COLOR=blue>    (Any Uncached)    do_check: 
    @{
       $abs_tol << mqc_convert_unit_for_tolerance(abs_tol:, unit:);
       $rel_tol << mqc_convert_unit_for_tolerance(rel_tol:, unit:);

       $topo_tol << {mqc_convert_unit_for_tolerance(distance:, unit:), tangent_angle:, curvature:};

       $criteria << {segment_check:, u_sample_point:, v_sample_point:, edge_curve_points:};
       
       $detail_flag << if (log_detail: = True) then 1 else 0;
        
       if ( face_list: = {False, {}} )
       then Donothing
       else
       @{
           ug_mqc_log_object_detail_flag( $detail_flag );

           mqc_pdqcad_setCriteriaNameOption( SASIG_PDQ );

           mqc_pdqcad_tinySurfacePatch ( face_list:,$topo_tol,
                                         $criteria, $abs_tol, $rel_tol,
                                         log_type:, log_msg: ); 
       };
    };
    

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