3D Modeling

[littlecircle]

i am now using ACIS and HOOPS as my developing tools.After building a model with ACIS,the model is rendered by HOOPS.Now the problem is,after a model such as a cuboid is rendered and displayed,how can i select a single face or edge instead of the whole object by mouse clicking and change its rendering attributes and match it with FACE or EDGE entity in ACIS.Thanks for help!

     cynthia

[steve0]

Sorry  ,dont know  it  very  much ..

[littlecircle]

it's very nice of you to answer

[wangpai7776]

First, you should overload HOpSelectAperture class to select a face or an edge. Then make sure that you used HC_Set_Selectability("everything = off, faces =on") before selected a face or an edge.

Finally,use  "HBaseView::SetOperator()" function to select a face or an edge.

[littlecircle]

Thank you very much for your reply.But the problem is how do i overload HOpSelectAperture.

Could you please explain in detail?Thanks again.

[wangpai7776]

1.First,derived your own class HOpSelectAperture from HOpSelectAperture  
class HOpMySelectAperture : public HOpSelectAperture  

2.Then, added the following codes to the responded function.
HC_Open_Segment_By_Key(m_pHSolidView->GetModelKey());
        HC_Set_Selectability("everything = off, faces =on");
        HC_Set_Visibility("vertices =off,markers=off");
HC_Close_Segment();

HOpMySelectAperture* pOperator = new HOpMySelectAperture(m_pHSolidView,0,1);
m_pHSolidView->SetOperator(pOperator);

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HSolidView* m_pHSolidView;

class HSolidView : public HBaseView