[gradsusr] City plotter - Dan Leins

[Stephen McMillan]

Dick,

I believe the error is due to no values in your world-coordinate variables.
 I get the same error you do, unless I initialize lon.start and lat.start
with real numbers.  For example, try running it again after adding this
line before the query line (for example):
lon.start=12.5;lat.start=45.2

Good luck
Stephen Mc

On Mon, Mar 12, 2012 at 4:42 PM, D. Wismeijer <dick at wismeijer.com> wrote:

> Hi Grads users****
>
> ** **
>
> The following code delivers the error message described below. Any help to
> identify the coding error would be appreciated.****
>
> Code:****
>
> 'q w2xy 'lon.start' 'lat.start****
>
> xx.start=subwrd(result,3)****
>
> yy.start=subwrd(result,6)****
>
> ** **
>
> *Mark each point with a period****
>
> *say 'This means x is 'xx.start' and y is 'yy.start****
>
> 'set string 1 c 10 0'****
>
> 'set strsiz 0.3'****
>
> 'draw string  'xx.start' 'yy.start+0.1' .'****
>
> ** **
>
> Results in:****
>
> Querry Error: Syntax is QUERRY W2XY LonLat****
>
> Non-numeric args to numeric operation****
>
> ** **
>
> Any help would be appreciated****
>
> Rgds****
>
> Dick****
>
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>
>

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