[vtkusers] How to find point ID?

[rakesh patil]

Thanks Jim, it worked absolutely fine.. :-)

On Wed, Sep 22, 2010 at 5:57 PM, Jim Peterson <jimcp at cox.net> wrote:

> rakesh patil wrote:
>
>> Hi,
>>
>> I have an unstructured grid.. and i have a point in it. i mean i have,
>> point values (xyz) form,
>>
>> With the help of this point, is there any way to get the point ID of that
>> point in the grid?
>>
>> Example, i have point say, p=(83.2346, 18.2615, 1235.0)
>>
>> This point exists in my grid also.. Thus, i need to find out th ID of that
>> point in grid.
>>
> If you look at the Class Members link on the vtk class documentation you
> will find a number of classes that implement the FindPoint() method, this
> method takes the point coordinates as input and returns the ID (vtkIDType).
> It is implemented in these classes:
> FindPoint() : vtkGenericDataSet
> <a00676.html#8b37ed061a94fa9d3befb28bd6656912> , vtkImageData
> <a00844.html#f5bb66af44074412b64b3058b09a2f87> , vtkKdTree
> <a01038.html#f078cd8b85b98f1ba4297343d1e85b28> , vtkRectilinearGrid
> <a01682.html#6b5fda94b984f0db3f76f9f4cea6e0ce> , vtkPointSet
> <a01432.html#a752212d5f6334f42dfcfd7d5ba10977> , vtkDataSet
> <a00429.html#d01fb4f295210a2c707801cb7c3da5ce> , vtkHyperOctree
> <a00792.html#ae09da0db0081bec1ca73570dfbbb919> , vtkImageData
> <a00844.html#734f015f8b8e24b291b53859a62f3336> , vtkKdTree
> <a01038.html#1afce419e23cffb80f9ccef3499934dc> , vtkRectilinearGrid
> <a01682.html#f728a0c2a2213bed34fbf4b445e98433> , vtkBridgeDataSet
> <a00231.html#8a9c4e7e9e211a7309767396a79b19ff>
>
> the typical code will  be something.GetPoints().FindPoint(x,y,z).
>
> hth,
> Jim
>
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