# Latitude and longitude lines

**URL:** <https://vapor.discourse.group/t/latitude-and-longitude-lines/476>\
**Category:** Uncategorized\
**Created:** [August 28, 2025, 8:50pm UTC](https://vapor.discourse.group/t/latitude-and-longitude-lines/476 "2025-08-28T20:50:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ColbyF](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@ColbyF](https://vapor.discourse.group/u/ColbyF)\
**Post date:** [August 28, 2025, 8:50pm UTC](https://vapor.discourse.group/t/latitude-and-longitude-lines/476/1 "2025-08-28T20:50:06Z")

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I can see the tick mark settings under Axis Annotations, but I don’t see how to have Vapor plot latitude and longitude lines on my image.

I also don’t see any reference material to how to set the various items here and in general, all through Vapor. Is there a general user guide for things like thickness of contours? And how do I get a color bar to actually show up?

Thanks, Frank

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**Author:** ![pearse](https://yyz2.discourse-cdn.com/free1/user_avatar/vapor.discourse.group/pearse/32/177_2.png) [@pearse](https://vapor.discourse.group/u/pearse)\
**Post date:** [September 2, 2025, 8:44pm UTC](https://vapor.discourse.group/t/latitude-and-longitude-lines/476/2 "2025-09-02T20:44:08Z")

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Hi Frank,

Our documentation can be found [here](https://ncar.github.io/VaporDocumentationWebsite/vaporApplicationReference.html), with links to video tutorials.

To annotate with lat/lon, there is a checkbox titled “Annotate with lat/lon” in the Annotate tab. Screenshot below.

We do not support varying width contours at this time. If you like, you can submit a feature request on our [github repository](https://github.com/NCAR/VAPOR).

 ![Screenshot 2025-09-02 at 2.42.44 PM](https://global.discourse-cdn.com/free1/uploads/vapor/original/1X/7ba5737a981f5ffd497612d13598a61fd0add77f.png)