[vtkusers] vtkDEMReader

[Amy Henderson]

Hi Vetria,

lindex is a Tcl command to extract an element from a list.  In C++, those 2 
lines of Tcl code would look something like this:

float lo = Scale * demModel->GetElevationBounds()[0];
float hi = Scale * demModel->GetElevationBounds()[1];

- Amy

At 02:45 PM 2/4/2004 -0600, Vetria Byrd wrote:
>I am trying to convert a tcl program that uses vtkDEMReader to C++.
>
>Does any one know how to convert the following tcl code to C++:
>
>set lo [expr $Scale * [lindex [demModel GetElevationBounds] 0 ]]
>set hi [expr $Scale * [lindex [demModel GetElevationBounds] 1 ]]
>
>Prior to previous two lines of code I have:
>vtkDEMReader *demModel = vtkDEMReader::New();
>demModel->SetFileName(argv[1]);
>demModel->Update();
>
>I am not sure what lindex is (variable name?) it isn't explicitly defined
>in the tcl code.
>
>Thanks in advance to anyone who can help.
>Vetria
>
>
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