Deselect by angle

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello all,

 

please any one can help deselect the nodes or elements by feature angle through scripts.

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Answers

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited December 2016

    A screenshot to better understand your question?

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2016

    Hello Nguyen-dai,

     

    I can able to select the elements with in the some feature angle ( ex 50 degree) elements by face option. Now my question is how to deselect the elements by feature angle.

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2016

    save your first set of nodes in mark 1, just an example

    *createmark 1 nodes 'by collectorname' theCollectorYouWant 

    Now select the nodes you want to remove from set in mark 1

    *createmark 2 nodes 'by cone' 

     

    CONE help:

    'by cone' x y z i j k rb rt h location contained all tol

    Place entities on mark_id if they are inside/outside/on the boundary of the cone.

    x – base center x coordinate

    y – base center y coordinate

    z – base center z coordinate

    i – x-normal, x-coordinate of a point on the cylinder axis

    j – y-normal, y-coordinate of a point on the cylinder axis

    k – z-normal, z-coordinate of a point on the cylinder axis

    rb – radius at the cone base

    rt – radius at the cone top

    h – height.  A negative value indicates the direction is opposite to the normal vector.

    location – The location of the entities to find, relative to the shape.  Valid values are inside, outside, boundary and acrossboundary.

    contained – A flag that indicates whether the entire entity should meet the location criteria (1) or just any part of the entity (0) to be selected.

    all – A flag that indicates whether all entities (1) or only displayed entities (0) are considered for selection.

    tol – The tolerance to use.  In most cases, this should be set to 0.

    This is currently supported for nodes, elements, connectors, components (FE and connectors only), loads, equations, loadcols, systems, systcols, vectors, vectorcols, blocks, groups, sets and contactsurfs.

     

    set cone parameters that match your angle parameters

    and then, another code line:

    *markdifference nodes 1 nodes 2

    Now you have in mark 1 your nodes but these nodes you wanted to deselect

     

    regards, drwill

  • tinh
    tinh Altair Community Member
    edited December 2016
    Altair Forum User said:

    Hello all,

     

    please any one can help deselect the nodes or elements by feature angle through scripts.

     

    example, you already selected some nodes by

    *createmark nodes 1 ... ... ...

     

    now you want to remove some nodes by feature angle, you can do: 

     *createmarkpanel nodes 2 'Select nodes on faces to remove:' *appendmark nodes 2 'by face' *markdifference nodes 1 nodes 2 *clearmark nodes 2

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2016

    Hi Tinh,

     

    Please can you help me how to debug the script using hypermath interface with hypermesh in debugging mode

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2016

    Hello tinh,

     

    Can you help me how to ignore the errors by using catch

  • tinh
    tinh Altair Community Member
    edited December 2016
    Altair Forum User said:

    Hello tinh,

     

    Can you help me how to ignore the errors by using catch

     

    Hello

    Please refer to tcl command 'catch' for its usage

    https://www.tcl.tk/man/tcl/TclCmd/contents.htm

     

    It is better if you post your script here so we can debug it for you

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