From bterkuile at gmail.com  Fri Feb 27 02:03:00 2009
From: bterkuile at gmail.com (Benjamin ter Kuile)
Date: Fri, 27 Feb 2009 08:03:00 +0100
Subject: [Tioga-users] Markers are line typed
Message-ID: <6680778a0902262303m1994cdc1v2fc3ce4788ac2883@mail.gmail.com>

Hello,

I'm starting to become a fan of Tioga. Using it for my master thesis. I ran
into a minor issue. When comparing data I use the options:
t.show_plot_with_legend => t.show_plot => each_line or data =>
t.show_polyline or t.show_marker

It all seemed to work like a charm, but when a marker is after a line with a
line type (dotted for example), the markers (tested: CircleOpen and BoxOpen)
are dotted as well.

This might be a feature, but by trying to avoid this effect, I put
t.line_type = Line_Type_Solid before the t.show_marker statement, which
resulted in a plot with solid line markers,
but in the legend, the marker is still dotted.

Plotting the markers first or after solid lines solves the issue.

Regards,

Benjamin
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From paxton at kitp.ucsb.edu  Sat Feb 28 17:53:22 2009
From: paxton at kitp.ucsb.edu (Bill Paxton)
Date: Sat, 28 Feb 2009 14:53:22 -0800
Subject: [Tioga-users] Markers are line typed
In-Reply-To: <6680778a0902262303m1994cdc1v2fc3ce4788ac2883@mail.gmail.com>
References: <6680778a0902262303m1994cdc1v2fc3ce4788ac2883@mail.gmail.com>
Message-ID: <1A9BF662-2DC1-4BE4-A7EE-3422F8FD8228@kitp.ucsb.edu>

Hi Benjamin,

This turned out to be 1 part feature and 1 part bug!

The feature part is that markers are graphics elements and reflect  
the settings like line_type.
The CircleOpen and BoxOpen markers are drawn by strokes, and if you  
have the line_type
set to dashed, then the markers will be dashed.

If you want to limit the effects of doing something like changing the  
line_type,
use the "context" method:
	t.context {
		t.line_type = ....
		t.show_polyline....
	}


The bug was in the routine that shows legends.  It was failing to  
save/restore line properties
so even with the markers correctly plotted as solid lines, in the  
legend they would be dashed
because they were following a dashed line in the legend.    That will  
be fixed in the next
release.

Thanks,
Bill







On Feb 26, 2009, at 11:03 PM, Benjamin ter Kuile wrote:

> Hello,
>
> I'm starting to become a fan of Tioga. Using it for my master  
> thesis. I ran into a minor issue. When comparing data I use the  
> options:
> t.show_plot_with_legend => t.show_plot => each_line or data =>  
> t.show_polyline or t.show_marker
>
> It all seemed to work like a charm, but when a marker is after a  
> line with a line type (dotted for example), the markers (tested:  
> CircleOpen and BoxOpen) are dotted as well.
>
> This might be a feature, but by trying to avoid this effect, I put  
> t.line_type = Line_Type_Solid before the t.show_marker statement,  
> which resulted in a plot with solid line markers,
> but in the legend, the marker is still dotted.
>
> Plotting the markers first or after solid lines solves the issue.
>
> Regards,
>
> Benjamin
> _______________________________________________
> Tioga-users mailing list
> Tioga-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/tioga-users