[Chart] Specifying sizes

[Jorden M]

That solution works, thanks.

Grid seems useful beyond just being an internal helper.

-j

> ----- Original Message -----
> From: Tim Docker
> Sent: 01/22/14 03:26 PM
> To: jrm3000 at gmx.com
> Subject: Re: [Chart] Specifying sizes
> 
> Hi Jorden.
> 
> The Grid type was created to facilitate the internal layout of plots (ie 
> allocating space to the axes, title, plot area etc). However, there's no 
> reason to use it outside the library.
> 
> When the rendering area is bigger than the minimum size of the 
> renderables, the extra space is allocated to the renderables according 
> to their weights. In your example below, your grid cells have weights of 
> 0 (the default), which means that no extra space is allocated. If you 
> set all the weights to 1, by replacing with this:
> 
>  let g0 = ((tval chart) .|. (tval chart)) ./. (tval chart .|. tval chart)
>  let g = weights (1,1) g0
> 
> you will see the output you expect.
> 
> Tim
> 
> On 23/01/14 04:35, Jorden M wrote:
> > Here's an example:
> >
> > The chart equation is lifted directly from the wiki. I think Grid and/or Renderable need to be changed so that they can stretch. I can probably work on it if someone's willing to point me in the right direction.
> >
> > import Graphics.Rendering.Chart
> > import Graphics.Rendering.Chart.Backend.Cairo
> > import Graphics.Rendering.Chart.Grid
> > import Control.Lens
> > import Data.Default.Class
> >
> > chart = toRenderable layout
> > where
> > values = [ ("Mexico City",19.2,e), ("Mumbai",12.9,e), ("Sydney",4.3,e), ("London",8.3,e), ("New York",8.2,e1) ]
> > e = 0
> > e1 = 25
> > pitem (s,v,o) = pitem_value .~ v
> > $ pitem_label .~ s
> > $ pitem_offset .~ o
> > $ def
> > 
> > layout = pie_title .~ "Relative Population"
> > $ pie_plot . pie_data .~ map pitem values
> > $ def
> >
> > main = do
> > 
> > let g = ((tval chart) .|. (tval chart)) ./.
> > (tval chart .|. tval chart)
> >
> > renderableToFile def {_fo_size = (1200,1200)} (gridToRenderable g) "file.png"
> >
> >
> >
> >
> >> ----- Original Message -----
> >> From: Carter Schonwald
> >> Sent: 01/22/14 11:22 AM
> >> To: Jorden M
> >> Subject: Re: [Chart] Specifying sizes
> >>
> >> have you tried making the overall plot larger?
> >>
> >>
> >> On Wed, Jan 22, 2014 at 10:44 AM, Jorden M <jrm3000 at gmx.com> wrote:
> >>
> >>> I took the pie chart example from the wiki and tried to stick several
> >>> copies of it into a grid, which had the effect of shrinking the charts so
> >>> much you can't see the pies, just the labelling. I assume this happens with
> >>> more than just pie charts. I figured there must be something I could fmap
> >>> into the grid that would set the size of every chart to whatever I wanted,
> >>> but I don't see anything in Pie, Grid, or Renderable with which I could
> >>> override the default sizing. Am I missing something simple, or can someone
> >>> tell me where I should look to make a patch?
> >>>
> >>> Thanks,
> >>> -j
> >>>
> >>> _______________________________________________
> >>> Chart mailing list
> >>> Chart at projects.haskell.org
> >>> http://projects.haskell.org/cgi-bin/mailman/listinfo/chart
> >>>
> >
> > _______________________________________________
> > Chart mailing list
> > Chart at projects.haskell.org
> > http://projects.haskell.org/cgi-bin/mailman/listinfo/chart