# contour with white inside

**URL:** https://discourse.paraview.org/t/contour-with-white-inside/6319
**Category:** ParaView Support
**Created:** [January 28, 2021, 5:49am UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319 "2021-01-28T05:49:49Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![aquanaut](https://discourse.paraview.org/user_avatar/discourse.paraview.org/aquanaut/32/1302_2.png) [@aquanaut](https://discourse.paraview.org/u/aquanaut)
#### Post date: [January 28, 2021, 5:49am UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/1 "2021-01-28T05:49:49Z")

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Hi,I want to make a contour map by csv data with white inside.  
How can I to do that?  
 ![Screenshot 2021-01-28 131017](https://discourse.paraview.org/uploads/default/original/2X/2/2ccf100818c97d60419674e548c580f595d79d0e.png)

[test.dat](https://discourse.paraview.org/uploads/short-url/65UwEOwcobpavbCjpkYhTNabNJ7.dat) (573 Bytes)  
Thank you very much.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 28, 2021, 11:10am UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/2 "2021-01-28T11:10:15Z")

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The inside of your data is NaN, if you want it to be white, set the NaN color to white in the color map editor.

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### Author: ![aquanaut](https://discourse.paraview.org/user_avatar/discourse.paraview.org/aquanaut/32/1302_2.png) [@aquanaut](https://discourse.paraview.org/u/aquanaut)
#### Post date: [January 28, 2021, 11:54am UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/3 "2021-01-28T11:54:59Z")

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hi,Thanks very much for your kind reply!It’s OK!  
Do I always need list the NaN value of points in the input file?Why?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 28, 2021, 12:05pm UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/4 "2021-01-28T12:05:37Z")

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I do not understand your question.

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### Author: ![aquanaut](https://discourse.paraview.org/user_avatar/discourse.paraview.org/aquanaut/32/1302_2.png) [@aquanaut](https://discourse.paraview.org/u/aquanaut)
#### Post date: [January 28, 2021, 2:58pm UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/5 "2021-01-28T14:58:58Z")

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I mean that can I omit the NaN value points data.For example,  
5 4 NaN  
5 5 NaN  
5 6 NaN

Actually,the contour map can not display normally if I omit.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 28, 2021, 3:01pm UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/6 "2021-01-28T15:01:51Z")

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Yes, it is needed to define the values, NaN or otherwise.

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### Author: ![aquanaut](https://discourse.paraview.org/user_avatar/discourse.paraview.org/aquanaut/32/1302_2.png) [@aquanaut](https://discourse.paraview.org/u/aquanaut)
#### Post date: [January 28, 2021, 3:05pm UTC](https://discourse.paraview.org/t/contour-with-white-inside/6319/7 "2021-01-28T15:05:10Z")

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OK.Thank you!