### Author:  [@alex\_xu](https://discourse.paraview.org/u/alex_xu)
#### Post date: [February 18, 2021, 2:22am UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/1 "2021-02-18T02:22:05Z")
I try to read .pts file in the Paraview.
here is one point in the test.pts file. the content is as follows:
7.75 14.28 19.08
Based on the source code here
>
There should be one point read in the Paraview.
However, there is no point at all.
Furthermore, when I have two points in the test.pts, such as
7.75 14.28 19.08
7.75 14.28 20.08
I will have only 1 point (the 2nd point) in the Paraview.
What need I do to have all points in the .pts file?
Thanks!
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 18, 2021, 8:37am UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/2 "2021-02-18T08:37:26Z")
Please share your data.
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### Author:  [@aron.helser](https://discourse.paraview.org/u/aron.helser)
#### Post date: [February 18, 2021, 1:11pm UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/3 "2021-02-18T13:11:06Z")
The comments in the source code you link make it a little more clear what is expected:
[https://github.com/Kitware/VTK/blob/master/IO/Geometry/vtkPTSReader.cxx#L164](https://github.com/Kitware/VTK/blob/master/IO/Geometry/vtkPTSReader.cxx#L164)
The first line of the .pts file should contain the number of points to be read.
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### Author:  [@alex\_xu](https://discourse.paraview.org/u/alex_xu)
#### Post date: [February 18, 2021, 1:16pm UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/4 "2021-02-18T13:16:35Z")
[test1.pts](https://discourse.paraview.org/uploads/short-url/iQrgcRuvIJZ8kz2SeNwFNASsbCZ.pts) (16 Bytes) [test2.pts](https://discourse.paraview.org/uploads/short-url/5aorCIhH5Y67yYl85s6OkaqDfpx.pts) (18 Bytes)
Here are two test .pts files.
Each file has only one point.
test1.pts has point only.
test2.pts has the # of points at the first line.
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### Author:  [@alex\_xu](https://discourse.paraview.org/u/alex_xu)
#### Post date: [February 18, 2021, 1:19pm UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/5 "2021-02-18T13:19:12Z")
I tried both formats. You can find two test files in this thread.
Furthermore,
>
It also shows that we can have points-only content.
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### Author:  [@aron.helser](https://discourse.paraview.org/u/aron.helser)
#### Post date: [February 18, 2021, 1:25pm UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/6 "2021-02-18T13:25:44Z")
Cool - do you see any issue with the code?
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### Author:  [@alex\_xu](https://discourse.paraview.org/u/alex_xu)
#### Post date: [February 18, 2021, 2:36pm UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/7 "2021-02-18T14:36:41Z")
I just looked through the code.
The issue may be here:
>
let’s say onRatio = 1.0
when we process the first point,
lastCount = 0
i = 0
i \* onRatio = 0
floor(i \* onRatio) \> lastCount is always false, lastCount remains 0
we miss the 1st point
however, in the following points
lastCount = 0
i = 1
i \* onRatio = 1.0
floor(i \* onRatio) \> lastCount is true
we have the 2nd point,
lastCount becomes 1
then, i = 2, etc.
what’s more, even we set the Max Number of points
( onRatio = static\_cast(this-\>MaxNumberOfPoints) / numPts;),
floor(i \* onRatio) \> lastCount doesn’t work as well IMHO.
I don’t understand why we need onRatio here,
why not use
if (this-\>MaxNumberOfPoints \> lastCount)
But, I haven’t tested it yet. I am not very familiar with Paraview/VTK. And, my current work doesn’t allow me spend more time in debugging the vtkPTSReader. That’s the reason I posted this help-thread. Sorry about that.
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### Author:  [@alex\_xu](https://discourse.paraview.org/u/alex_xu)
#### Post date: [February 25, 2021, 8:58pm UTC](https://discourse.paraview.org/t/paraview-ptsreader-misses-the-first-point/6495/8 "2021-02-25T20:58:11Z")
It seems that I forgot to @ you in the previous post, please take a look at my previous post.
thank you 🙂