# Re: [NTG-context] Offseting the baseline grid, and irregular columnsets

You left out the comma after the backspace setting. WIth that in, all is well.
```
On 2022-05-27 12:03, Stefan Nedeljkovic via ntg-context wrote:
```
Thank you very much Aditya for looking into this. But I still have the same baseline grid offset problem. Interestingly, when I remove the columns, the text shifts downwards by two lines.
`My code:`
```
\definemeasure[xheight][0.1in]

\definemeasure[base][3\measured{xheight}]

```
% Since all distances are in terms of base units, specify the paper size in those
```
% terms as well.

\definepapersize[slide][width=26\measured{base},height=20\measured{base}]

\setuppapersize[slide]

\setupinterlinespace[line=\measure{base}]

\setuplayout

[

topspace=2\measured{base},

height=middle, % Space for 20-4=16 lines

footerdistance=\zeropoint,

footer=\zeropoint,

bottomspace=2\measured{base},

%

cutspace=2\measured{base},

leftmargin=\zeropoint,

leftmargindistance=\zeropoint,

width=middle, % space for 26-4=22 col

rightmargindistance=\zeropoint,

rightmargin=\zeropoint,

backspace=2\measured{base}

grid=yes,

]

\showframe

\showgrid

\starttext

\input tufte

\stoptext

I'm attaching the pdf output.

On Fri, May 27, 2022 at 5:00 PM Aditya Mahajan <adit...@umich.edu> wrote:

On Wed, 25 May 2022, Stefan Nedeljkovic via ntg-context wrote:

> Dear list,
>
> My adventures into the world of grids continue. In the linked file
> (slide_grid_overlay.pdf) there are two things I cannot yet achieve:
>
>     1. I want the baseline grid to evenly (vertically) divide
the text
> area, but my code produces a smaller height of the first line and an
> additional space at the bottom.

You did not set footerdistance to zero. So, that takes up some space.

>     2. The number of columns is 21.5, that is the first column
is 0.5 units
> wide and the rest are 1 unit wide.

I believe that columns has to be an integer. Why do you want
fractional columns? Columns are useful because you can say:

\setlayer[name][line=2,column=3]{....}

for absolute positioning of layers. So, you can always use:

\setlayer[name][line=2,column=3,x=0.5\measured{base}]{....}

to move everything to the right by 0.5 units.

Another option is not to use columns at all, and simply do:

\setlayer[name][line=2,x=3.5\measured{base}]

which will place the layer at 3.5 units from the left edge of the
text area.

> Here is what I got right now:

Currently your textwidth is not a multiple of base units. I have
tweaked the code below so that it is.

\definemeasure[xheight][0.1in]
\definemeasure[base][3\measured{xheight}]

% Since all distances are in terms of base units, specify the
paper size in those
% terms as well.
\definepapersize[slide][width=26\measured{base},height=20\measured{base}]
\setuppapersize[slide]

\setupinterlinespace[line=\measure{base}]

\setuplayout
[
topspace=2\measured{base},
height=middle, % Space for 20-4=16 lines
footerdistance=\zeropoint,
footer=\zeropoint,
bottomspace=2\measured{base},
%
cutspace=2\measured{base},
leftmargin=\zeropoint,
leftmargindistance=\zeropoint,
width=middle, % space for 26-4=22 col
rightmargindistance=\zeropoint,
rightmargin=\zeropoint,
backspace=2\measured{base},
%
columns=22,
columndistance=1pt,
%
grid=yes,
]

\showframe
\showgrid

\starttext
\input tufte
\stoptext

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