# Cannot download appropriate point cloud data

**URL:** <https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213>\
**Category:** PIX4Dcloud Questions/Troubleshooting\
**Created:** [August 3, 2021, 9:13pm UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213 "2021-08-03T21:13:28Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![seiichi\_takayama](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/seiichi_takayama/32/1203_2.png) [@seiichi\_takayama](https://community.pix4d.com/u/seiichi_takayama)\
**Post date:** [August 3, 2021, 9:13pm UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/1 "2021-08-03T21:13:28Z")

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Hello.  
If I download point cloud data at PIX4Dcloud, I get very low density data.  
Input from PIX4Dcatch (iPhone 12 Pro Max).

I think this data is “depth point cloud”.(Because it is very similar when use PIX4Dmatic’s output of depth point cloud)

 ![download-image](https://global.discourse-cdn.com/pix4d/original/2X/7/749b5c764a6bf5da83f4ecc8ec67ad6c370ee3a4.jpeg)

Best Regards.  
Seiichi Takayama

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**Author:** ![Alice\_Bonfiglio](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/alice_bonfiglio/32/291_2.png) [@Alice\_Bonfiglio](https://community.pix4d.com/u/Alice_Bonfiglio)\
**Post date:** [August 4, 2021, 10:42am UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/2 "2021-08-04T10:42:33Z")

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Hello @seiichi_takayama ,

if I download the point cloud file and open it in PIX4Dsurvey, I see the same file that is on PIX4Dcloud. Do you have a similar behavior?

Could you send a screenshot of the low density point cloud that you get? Which software are you using to open the .las file?

Best

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**Author:** ![seiichi\_takayama](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/seiichi_takayama/32/1203_2.png) [@seiichi\_takayama](https://community.pix4d.com/u/seiichi_takayama)\
**Post date:** [August 8, 2021, 2:16pm UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/3 "2021-08-08T14:16:50Z")

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Hello, @Alice_Bonfiglio

When I use CloudCompare (Open Source Software), like below.

 ![pointcloud](https://global.discourse-cdn.com/pix4d/original/2X/1/19762801b86abfe3714f192a85695fd52f3c068e.jpeg)  
 ![pointcloud2](https://global.discourse-cdn.com/pix4d/original/2X/9/98f901d6ba7b4b229ceb1e12872d64a749387076.jpeg)

Source data is like below (Screen shot of PIX4Dcloud).

 ![pointcloud3](https://global.discourse-cdn.com/pix4d/original/2X/a/ab2eca7f26d303866ddfddaef95867d08da4b5dd.jpeg)

Best Regards.  
Seiichi Takayama

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<div class="post-metadata">

**Author:** ![Alice\_Bonfiglio](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/alice_bonfiglio/32/291_2.png) [@Alice\_Bonfiglio](https://community.pix4d.com/u/Alice_Bonfiglio)\
**Post date:** [August 10, 2021, 5:44pm UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/4 "2021-08-10T17:44:14Z")

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Hello @seiichi_takayama ,

I believe CloudCompare is applying an approximation to the coordinates of the points, therefore the striped effect occurs.

By clicking **Yes** to the second import window, the file shows up correctly in CloudCompare too.

 ![2021-08-10_19-39-59](https://global.discourse-cdn.com/pix4d/original/2X/d/df1e96d793ef1f33b89166cb402d020d0e5b70d6.jpeg)

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<div class="post-metadata">

**Author:** ![seiichi\_takayama](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/seiichi_takayama/32/1203_2.png) [@seiichi\_takayama](https://community.pix4d.com/u/seiichi_takayama)\
**Post date:** [August 10, 2021, 11:18pm UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/5 "2021-08-10T23:18:26Z")

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Hello, @Alice_Bonfiglio

I tried to click [Yes] or [Yes to All] , the problem is solved!  
Thank you.

But I tried to click [No], the problem is not solved.

And I tried to open PIX4Dsurvey, like below.

 ![PIX4Dsuvey-display](https://global.discourse-cdn.com/pix4d/original/2X/c/c9cb352c39d687566059d7d226794ca7c39abeed.jpeg)

I understand data’s X and Y is too big (and object is too small), unbalance.  
So viewer is applying an approximation.

I learned a lot, thank you !

Best Regards.  
Seiichi Takayama

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<div class="post-metadata">

**Author:** ![Alice\_Bonfiglio](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/alice_bonfiglio/32/291_2.png) [@Alice\_Bonfiglio](https://community.pix4d.com/u/Alice_Bonfiglio)\
**Post date:** [August 11, 2021, 6:14am UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/6 "2021-08-11T06:14:46Z")

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In PIX4Dsurvey you can adjust the point size so that you can visualize the file as on PIX4Dcloud 🙂

Best

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<div class="post-metadata">

**Author:** ![seiichi\_takayama](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/seiichi_takayama/32/1203_2.png) [@seiichi\_takayama](https://community.pix4d.com/u/seiichi_takayama)\
**Post date:** [August 11, 2021, 7:27am UTC](https://community.pix4d.com/t/cannot-download-appropriate-point-cloud-data/19213/7 "2021-08-11T07:27:08Z")

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Hello, @Alice_Bonfiglio  
Thank you.  
In PIX4Dsurvey, I try to change point-size, adjusted.

 ![point_cloud2](https://global.discourse-cdn.com/pix4d/original/2X/5/5f6c918a3e6c94256b126f9082837390ebc1df3d.jpeg)  
Thank you!

Best Regards.  
Seiichi Takayama