# Streamlines on sphere surface
**URL:** https://discourse.paraview.org/t/streamlines-on-sphere-surface/1014
**Category:** ParaView Support
**Created:** [December 6, 2018, 9:13pm UTC](https://discourse.paraview.org/t/streamlines-on-sphere-surface/1014 "2018-12-06T21:13:00Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@liangwang0734](https://discourse.paraview.org/u/liangwang0734)
#### Post date: [December 6, 2018, 9:13pm UTC](https://discourse.paraview.org/t/streamlines-on-sphere-surface/1014/1 "2018-12-06T21:13:00Z")
Hi, what is the standard procedure to plot streamlines on the surface of an object, say, a sphere? Input is a 3d vector. I would like the map it onto the surface of a sphere and plot its contour/streamlines.
Examples:
Thank you.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2018, 1:45pm UTC](https://discourse.paraview.org/t/streamlines-on-sphere-surface/1014/2 "2018-12-11T13:45:07Z")
You need to use the “Surface Streamlines” feature of the stream tracer.
Here is how to do it.
- Open ParaView
- Open your vector field, apply
- Create a Sphere source, set the radius to a specific value, set the resolution to a high enough value (80, 80 should be ok), Apply
- Click on your vector field in the pipeline browser
- Add a resample with dataset filter, select your sphere as a source, Apply
- Create a sphere source, set the radius to the same value as the other sphere, set the resolution to have enough seed for your streamlines (20, 20 should be ok), Apply
- Click on the resample with dataset, in the pipeline browser
- Add a StreamTracer with custom source, select the second sphere as a source, Apply
[stream.pvsm](https://discourse.paraview.org/uploads/default/original/1X/1a812a93bbe11183638f60ffab110ea8dc9e7026.pvsm) (624.7 KB)