michaelchin

The title of this issue is really bad. We should update the title once it is clear what to do. Maybe even split this issue into small ones.

As we can see, those two straight lines are not showing in GPlates.

This Issue was a part of #183. Create a separate Issue for better tracking.


Just tried to plot with pygplates directly, no artefacts. So the artefacts must be introduced by gplately code. Bug confirmed. See the map below plotted without using gplately. No line...

In fact, the artefacts came from different places. I have found two possible places. https://github.com/GPlates/gplately/blob/4237ca04e9791e774ff1e90b94e69eb74a6931ad/gplately/geometry.py#L165 https://github.com/GPlates/gplately/blob/4237ca04e9791e774ff1e90b94e69eb74a6931ad/gplately/utils/plot_utils.py#L380-L394

@brmather do you know who is the author of above code?

> > Just tried to plot with pygplates directly, no artefacts > > I wonder if it's related to the pygplates.DateLineWrapper in `pygplates_to_shapely()`. Judging from the above screenshots I don't...

> Actually, after testing your debug branch, I don't think it's the pyGPlates dateline wrapping after all. > > If I comment out [this line](https://github.com/GPlates/gplately/blob/9f085925056e7ed67928bbc77e99f15c0c1b9149/gplately/geometry.py#L229) then the plot still looks...

> I'm not quite sure which other line you mean? There's an image above for 59Ma, but this is 52Ma (ie, you and I are now discussing plots at 52Ma)....