pymol-users

[PyMOL] Outlines thickness

[Gianluca T. <gia...@gm...>]

Hi,
is there a proper way to increase outlines thickness in PyMol?

I noticed that increasing ray_trace_gain setting outlines are drawn thicker
but increasing this setting increases also the number of outlines.

Is there a way to increase thickness without increasing the outlines
number?

Re: [PyMOL] Outlines thickness

[h. a. s. <h.a...@gm...>]

I also use this feature for illustrations and would love to find a better way of controlling the outline thickness. Could anyone fill us in on the history of this feature?

In Chimera black outline is just a simple slider and it’s super easy to use. You just move the slider up and down and it shows you the black outline thickness without even having to render the image.

In PyMOL you can do a couple of things:
1. increasing the rendering size (more pixels in X and Y) will decrease the thickness of the black outline (and infilling).
Decreasing the rendering size will make the black outline thicker.
Note however that the detail/quality of the image is better with higher resolution and worse with lower resolution.

2. Change the ray_trace_gain. the default setting is 0.12.
Setting this to 1 will give you more black, but it’s not great (black infill is worse in many areas) and it depends on the resolution you choose in X and Y. 
Setting this to 0 will give you less black, but it’s not great (infill will be removed but so will many of the black outlines) and it depends on the resolution you choose in X and Y.  0.06 works fairly good at 1500dpi for less black and less infill.

3. Setting the Ray_trace_slope_factor higher, will also reduce the infill black. 0.9 Ray_trace_slope_factor and ray_trace_gain of 0.2 at 1500dpi looks fairly good.

It seems that PyMOL doesn’t have a way to easily control the ray traced black outline.

> On May 6, 2020, at 10:47 AM, Gianluca Tomasello <gia...@gm...> wrote:
> 
> Hi, 
> is there a proper way to increase outlines thickness in PyMol? 
> 
> I noticed that increasing ray_trace_gain setting outlines are drawn thicker but increasing this setting increases also the number of outlines. 
> 
> Is there a way to increase thickness without increasing the outlines number? 
> _______________________________________________
> PyMOL-users mailing list
> Archives: http://www.mail-archive.com/pym...@li...
> Unsubscribe: https://sourceforge.net/projects/pymol/lists/pymol-users/unsubscribe

Re: [PyMOL] Outlines thickness

[Gianluca T. <gia...@gm...>]

Hi Adam,

Thanks for your response.
As I imagined there isn't an easy way of doing this. I'll play around with
settings and try to find a good compromise.



On Thu, 7 May 2020, 17:02 h. adam steinberg, <h.a...@gm...>
wrote:

> I also use this feature for illustrations and would love to find a better
> way of controlling the outline thickness. Could anyone fill us in on the
> history of this feature?
>
> In Chimera black outline is just a simple slider and it’s super easy to
> use. You just move the slider up and down and it shows you the black
> outline thickness without even having to render the image.
>
> In PyMOL you can do a couple of things:
> 1. increasing the rendering size (more pixels in X and Y) will decrease
> the thickness of the black outline (and infilling).
> Decreasing the rendering size will make the black outline thicker.
> Note however that the detail/quality of the image is better with higher
> resolution and worse with lower resolution.
>
> 2. Change the ray_trace_gain. the default setting is 0.12.
> Setting this to 1 will give you more black, but it’s not great (black
> infill is worse in many areas) and it depends on the resolution you choose
> in X and Y.
> Setting this to 0 will give you less black, but it’s not great (infill
> will be removed but so will many of the black outlines) and it depends on
> the resolution you choose in X and Y.  0.06 works fairly good at 1500dpi
> for less black and less infill.
>
> 3. Setting the Ray_trace_slope_factor higher, will also reduce the infill
> black. 0.9 Ray_trace_slope_factor and ray_trace_gain of 0.2 at 1500dpi
> looks fairly good.
>
> It seems that PyMOL doesn’t have a way to easily control the ray traced
> black outline.
>
> > On May 6, 2020, at 10:47 AM, Gianluca Tomasello <gia...@gm...>
> wrote:
> >
> > Hi,
> > is there a proper way to increase outlines thickness in PyMol?
> >
> > I noticed that increasing ray_trace_gain setting outlines are drawn
> thicker but increasing this setting increases also the number of outlines.
> >
> > Is there a way to increase thickness without increasing the outlines
> number?
> > _______________________________________________
> > PyMOL-users mailing list
> > Archives: http://www.mail-archive.com/pym...@li...
> > Unsubscribe:
> https://sourceforge.net/projects/pymol/lists/pymol-users/unsubscribe
>
>