POINT CLOUD - IMPLICIT MODELING

Nancy Jewel Mcdonie
Nancy Jewel Mcdonie Altair Community Member
edited March 8 in Community Q&A

Hi all, 

I'm really stuck in this tool - point cloud, I don't really know how to use it. And I'm not sure about the main advantages of this tool. Can anyone teach me how to use it like this attched video? 

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Best Answer

  • Antonio Flores_21377
    Antonio Flores_21377
    Altair Employee
    edited March 8 Answer ✓

    Hi Nancy,

    Try this simple procedure:

    1) make an implicit primitive, a cube 100x100x10 mm

    image

    2) create a Points Cloud by hand with only 2 points, in two corners. The green plus will let you create them.
          Give 3mm to the value of one point and 20 mm to the other. Values here are in meters all the time
          so 3 will become 0.003 meters and 20 will become 0.020 meters.
    image

    3) apply a Planar lattice to the cube. Set thickness to 1 mm and for the width click on the field icon
             at the left of the Width value and from the dropdown menu instead of None, pick the last option
             (should be PointCloud 1 or similar). This is what you will get:
    image

    Now that you are able to do this you can add as many points as you want, give any value you want etc.

    Regards,
    Antonio

     

Answers

  • Antonio Flores_21377
    Antonio Flores_21377
    Altair Employee
    edited March 8 Answer ✓

    Hi Nancy,

    Try this simple procedure:

    1) make an implicit primitive, a cube 100x100x10 mm

    image

    2) create a Points Cloud by hand with only 2 points, in two corners. The green plus will let you create them.
          Give 3mm to the value of one point and 20 mm to the other. Values here are in meters all the time
          so 3 will become 0.003 meters and 20 will become 0.020 meters.
    image

    3) apply a Planar lattice to the cube. Set thickness to 1 mm and for the width click on the field icon
             at the left of the Width value and from the dropdown menu instead of None, pick the last option
             (should be PointCloud 1 or similar). This is what you will get:
    image

    Now that you are able to do this you can add as many points as you want, give any value you want etc.

    Regards,
    Antonio

     

  • Antonio Flores_21377
    Antonio Flores_21377
    Altair Employee
    edited March 7

    Here you find some more about how to create and manipulate Points Cloud:

    https://help.altair.com/inspire/en_us/topics/implicit/point_cloud_implicit_c.htm#concept_khr_mtp_myb

  • Nancy Jewel Mcdonie
    Nancy Jewel Mcdonie Altair Community Member
    edited March 8
    Antonio Flores_21377 said:

    Hi Nancy,

    Try this simple procedure:

    1) make an implicit primitive, a cube 100x100x10 mm

    image

    2) create a Points Cloud by hand with only 2 points, in two corners. The green plus will let you create them.
          Give 3mm to the value of one point and 20 mm to the other. Values here are in meters all the time
          so 3 will become 0.003 meters and 20 will become 0.020 meters.
    image

    3) apply a Planar lattice to the cube. Set thickness to 1 mm and for the width click on the field icon
             at the left of the Width value and from the dropdown menu instead of None, pick the last option
             (should be PointCloud 1 or similar). This is what you will get:
    image

    Now that you are able to do this you can add as many points as you want, give any value you want etc.

    Regards,
    Antonio

     

    I really appreciate you. Thank you so much! Have a good day!

  • Nancy Jewel Mcdonie
    Nancy Jewel Mcdonie Altair Community Member
    edited March 8
    Antonio Flores_21377 said:

    Hi Nancy,

    Try this simple procedure:

    1) make an implicit primitive, a cube 100x100x10 mm

    image

    2) create a Points Cloud by hand with only 2 points, in two corners. The green plus will let you create them.
          Give 3mm to the value of one point and 20 mm to the other. Values here are in meters all the time
          so 3 will become 0.003 meters and 20 will become 0.020 meters.
    image

    3) apply a Planar lattice to the cube. Set thickness to 1 mm and for the width click on the field icon
             at the left of the Width value and from the dropdown menu instead of None, pick the last option
             (should be PointCloud 1 or similar). This is what you will get:
    image

    Now that you are able to do this you can add as many points as you want, give any value you want etc.

    Regards,
    Antonio

     

    Hi Antonio, 

    Could you explain for me what is the value of the point?

  • Nancy Jewel Mcdonie
    Nancy Jewel Mcdonie Altair Community Member
    edited March 8
    Antonio Flores_21377 said:

    Hi Nancy,

    Try this simple procedure:

    1) make an implicit primitive, a cube 100x100x10 mm

    image

    2) create a Points Cloud by hand with only 2 points, in two corners. The green plus will let you create them.
          Give 3mm to the value of one point and 20 mm to the other. Values here are in meters all the time
          so 3 will become 0.003 meters and 20 will become 0.020 meters.
    image

    3) apply a Planar lattice to the cube. Set thickness to 1 mm and for the width click on the field icon
             at the left of the Width value and from the dropdown menu instead of None, pick the last option
             (should be PointCloud 1 or similar). This is what you will get:
    image

    Now that you are able to do this you can add as many points as you want, give any value you want etc.

    Regards,
    Antonio

     

    Hi Antonio,

    I have a another question about Smooth tool in Implicit Modeling, can you help me?

    image

    I don't really understand about these parameters, and don't know how to choose the appreciate parameters for smoothing. 

    Thanks for your time. Hope to see your answer soon.

  • Antonio Flores_21377
    Antonio Flores_21377
    Altair Employee
    edited March 8
    Nancy Jewel Mcdonie said:

    Hi Antonio, 

    Could you explain for me what is the value of the point?

    Hi Nancy,

    This approach allows you to make parameter changes in different areas of the model
    instead of being limited to have the same value everywhere.

    This can be applied to any parameter that has the field button image so in case of need
    you can use this and you can even have multiple parameters driven by different points cloud.

    Of course this make sense only if you need that.
    If one fixed parameter does the work you need you can just forget about what I explained.

    Regards,
    Antonio

  • Antonio Flores_21377
    Antonio Flores_21377
    Altair Employee
    edited March 8
    Nancy Jewel Mcdonie said:

    Hi Antonio,

    I have a another question about Smooth tool in Implicit Modeling, can you help me?

    image

    I don't really understand about these parameters, and don't know how to choose the appreciate parameters for smoothing. 

    Thanks for your time. Hope to see your answer soon.

    Hi Nancy,

    When you are using a tool and its panel is displayed with all parameters,
    you can press F1 key on the keyboard and it will take you straight into the specific
    page of the documentation where that tool is explained in details.

    I did this for the Smooth tool and here is the page it links to:
    https://2023.help.altair.com/2023/inspire/en_us/topics/implicit/smooth_t.htm

    There you find detailed explanation of each parameter.

    Regards,
    Antonio

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