CAE | Hotspot Finder

 

This tool is used to find the hotspot CAE values as described in the CAE | CAE Settings | Hotspot Finder.

  • Click CAE Settings dialog.
  • Enter filter values in the dialog.
  • All the filter options are explained in detail below.

Local Extrema represents a mechanism to identify the hot spots. VCollab identifies the local maximums and minimums as the hot spots instead of nodes with maximum or minimum values. A local maximum is a node/element whose value is higher than all its neighbors and a local minimum is a node/element whose value is lower than all its neighbors.

Global Extrema represents a mechanism to identify the nodes or elements with maximum or minimum values not local min max as in hotspots.

To know more about Local and Global Extrema, click here.

Various options and inputs that are provided in this dialog are explained below.

  1. Hot spot Range (Min & Max) When a range is specified, VCollab filters the nodes whose result values lie out of this range. They are never considered as hot spots. Hot spots are searched among only the nodes whose values satisfying the range conditions.

  2. Hot spot Count (Top and Bottom) represents the number of hot spots that need to be generated. A hot spot can be a node, an element or an area in the computational domain with extreme values of a result i.e. nodes/elements/areas with maximum values and minimum values. Local minima, local maxima or nodes/elements/areas with high gradients can also be considered as hot spots in certain situations. As the definition of hot spots can be situational, we intend to provide various mechanisms to identify hot spots in VCollab. User can choose the right mechanism based on his understanding of the problem to identify the hot spots.  Hotspots top and bottom labels are differentiated by label border colors, which are red and blue respectively.  User is allowed to change the colors.

  3. All Top If top value is v and there are multiple IDs with the same value v, then hotspot finder considers and displays only one of these IDs if All Top is  unchecked. If this option is checked, hotspot finder displays all IDs with the same  top values.

  4. All Bottom this option does the same as All Top does, except that it considers bottom values.

  5. Mark MinMax this option highlights the labels of maximum of top labels and minimum of bottom labels. Maximum and Minimum labels are highlighted with text colors of Red and Blue respectively.

  6. Zone Radius The Zone radius option that is provided to facilitate the user to avoid locating hot spots next to each other. Once a hot spot is found, VCollab skips all the nodes within the specified radius of it during its search for the next hot spot.

  7. Visible Surface displays the visible labels in the current view.

  8. Probe Label Settings allows user to select probe type and template and other result attributes.

  9. Probe Type This option helps user to display result value for current derived result, or result components (full result) or all results in a table, or all instances in table or all instances as XY Plot.

  10. Template type This option helps user to display values in a predefined templates (formats).

  11. Selection of result names for probe labels

    • List in the left side displays all available results.

    • List in the right side displays the results to be shown in labels.

    • User can add to or remove from selected results using the >> or << respectively.

    • Select Result  Click a result in all result list box and click >> button to get added in selected results list.

    • Deselect Result  Click a result in selected result list box and click <<  button to get removed from it.

    • Row Header

      This option is to display either dataset name or result/instance name in the first column of   labels. Each row denotes what result/instance for template1 and denotes what dataset in template2.

       

    • Column Header  

      This option is to display either dataset name or result/instance name in the top of labels. Each column denotes what dataset for template1 and denotes what result/instance in template2.

      Reordering result. To rearrange the results order in the labels, click on the 'selected results list box' and drag the result and drop where you want to place.

       

    • Part Header adds annotated part name into the label.

    • Header legend displays acronym of the results as a separate label.

    • Abbreviation Legend this option displays the legend or abbreviation and its acronym in a table separately. It displays a table for short letters for results used in the labels. It can be moved like other labels.

    • ID this option enables nodal or element ID in the label display.

    • Rank displays rank number based on the hotspot value and number of hotspots found.

    • Rank Ascending Order specifies ranking process to be ascending or descending.

  12. Label Settings allows user to format the text and background of the label.

  13. Result Options allows user to select and highlight labels based on the result values.

  14. Click Apply or OK to set the modifications.

    Note: Header options are meaningful for template 1 when at least one dataset is merged with existing one.

  15. Compare Options

    This option is visible only when at least one dataset is merged with existing one. It is used to compare results of merged datasets.

     

    This feature will compare the results between merged datasets. A dataset is set of analysis results carried out once. VCollab allows to merge multiple analysis.  

    First it generates hotspots/min max labels for the current dataset. Then it adds results from merged datasets as rows or columns based on template selected. The following methods will be used to compare results.

    The following methods are available to user to compare results.

    1. Position : Nearest

      Compare one hotspot Node with a Node from another model based on position

      • Get nearest Node from the other model with distance < Radius ('Within Distance').

      • Select this nearest node for comparison.

       

    2. Position : Min/Max

      Compare one hotspot Node with a Node from another model based on position

      • Get all Nodes in other model with distance < radius

      • From this set of Nodes select one Node for comparison

        • For Top hot spot select Node with Max value

        • For Bottom hotspot select Node with Min value

    3. ID

      Compare the hot spot Node with a Node from another model having same id.

    4. ID : Distance

      Compare the hot spot Node with a Node from another model having same id

      • AND distance < radius

    5. Hotspot: Min/Max

      Compare the hotspot Node with a hot spot Node from another model

      • Get all hotspot nodes in other model with distance < radius

        • Here hot-spots in second model are local peaks (without any range limit)

      • From this set of hotspots select one hot spot for comparison

        • For Top hot spot select top hotspot with Max value

        • For Bottom hotspot select bottom hot spot with Min value.

    6. Hotspot: Nearest

      Compare the hot spot Node with a hot spot Node from another model.

      • Get all hotspot nodes in other model with distance < Radius.

        • Here hot-spots in second model are local peaks (without any range limit).

      • From this set of hotspots select nearest hotspot (of same type) for comparison.

    7. Hotspot: Min/Max User range

      Compare the hotspot Node with a hot spot Node from another model

      • Get all hotspot nodes in other model with distance < radius.

        • Here hot-spots in second model are also filtered based on range (same as first model).

      • From this set of hotspots select one hot spot for comparison.

        • For Top hot spot select top hotspot with Max value.

        • For Bottom hotspot select bottom hot spot with Min value.

    8. Hotspot: Nearest User range

      Compare the hot spot Node with a hot spot Node from another model

      • Get all hotspot nodes in other model with distance < Radius

        • Here hot-spots in second model are also filtered based on range (same as first model)

      • From this set of hotspots select nearest hotspot (of same type) for comparison
         

    Compare With

    • Same Part - look the above constraint in same part of other model.

    • Visible Parts - look  the above constraint in any visible part of other model.

    • All Parts - look  the above constraint in all parts.

     

    Show All Connections

    • Shows the all linking lines between the label and its attached positions.  

       

  16. Mask allows user to mask set of nodes and elements from the process.

    • Mask panel lists user created node or element sets in one side.

    • Select node sets to be masked for hotspot finding process using " >>" button.

    • Use " << " button to remove node sets from the masked group.

  17. Viewpoints Options this helps user to select either part wise viewpoints or multi view points for a single scene..

    • Each Parts  If this option is enabled and If top hot spot count is specified as ten, and if the mode consists of 5 parts, then the generated view path consists of five view points (one per each part) with each view point consisting of ten hot spots on the corresponding part. There will not be any change in view and orientations. In each viewpoint, one part is visible and others are hidden.  Regions will be set as 1,1 for a better view as this option enabled.

    • Visible option filters the parts based on its visibility and lists the parts in the list.

    • All Std. Views This option will include 6 standard view points (X, Y, Z,-X,-Y and -Z) to each part or current scene based on Each Part option. user can filter viewpoints by check or uncheck the options. if user do not want X view of part 1, then user can uncheck the check box intersection part row and view column. User can check or uncheck the entire column or row in one shot.

    • Add View Whenever user click this option, it will add current camera view or user view as an option with standard views in the GUI. User can check or uncheck if necessary. To update current view, click on the icon will set current camera position as the viewpoint. To remove, set unchecked on the view point will remove the view on generation of viewpoints.  

    • Regions The model area can be split into number of pieces and displayed each piece focused with that region hotspots. (2,4) means to split the model area into vertically into 2 and horizontally into 4, so the total regions are 2x4=8.  For example, the following bracket model is discretized into 2x4=8 regions as below.

    • Hotspots per page User can customize the viewpoint with number of hotspots per page. if there are 45 hotspots on the model, user can customize it with three viewpoints, first 40 hotspots in first and second viewpoints each with 20 hotspots, remaining 5 in the last viewpoint.

    • Auto Views 

      • When this option is not selected, same hotspots may be displayed in multiple user defined views. This way it is difficult to check for the visibility of all hotspots.

      • When this option is selected, only visible hotspot labels are displayed in first user defined view and the visible hotspots from remaining hotspots are displayed in the next user defined views.

      • If ‘number of auto views’ are specified, the system will try to generate that many new views (based on remaining hotspots) and display only visible hotspots.

      • All the remaining hotspots (not visible in any of the above views) are displayed in the last viewpoint.

  18. Find Hotspots Generates viewpoints for the model according to above information.

  19. Add View Points generates viewpoints according to viewpoint options if enabled.

  20. Export It helps user to export the viewpoints into either vpt file or Microsoft ppt file. while adding view path user will be prompt for file name and file type.

How to find hotspots after hotspot settings?

  • Click CAE | Hotspot Finder which enables mouse mode to hotspot finder.
  • Select a region to find hotspots as below

  • Hotspot  CAE values are displayed as labels as follows.