How to calculate LABELMINSCALE and LABELMAXSCALE

[Stephen Woodbridge]

Hello Holger,

Well you can get the map scale from the map object and echo it on your
output page so you can see what the map scale is while you are
developing your application and making changes to your mapfile. When you
are happy, just comment out the line that echos the scale to the html
page that your application renders to.

Their may be a better way, but I haven't found it yet and this gets the
job done for me anyway.

-Steve

Holger Floerke wrote:
> Hi Steve,
>
> I do not use the templates. I produce the map images with MapScript because
> I have added some additional information like charts,... . Therefore I can't
> use the [scale] variable in my template.
>
> Any other idea? Or do I have to write a template just for this reason?
>
> HolgeR
>
>
>>The easiest way to know what scale you are at is to put [scale] in your
>>template and it will display the current scale of the map on your HTML
>>page. Then zoom in and out and see what scale you are at when you want
>>to turn it on/off and round the values and put them in your mapfile.
>
>
>>-Steve W.
>
>
>>Holger Floerke wrote:
>>
>>>Hi there,
>>>
>>>how can I calculate the LABELMINSCALE and LABELMAXSCALE parameters within my
>>>mapfile? Is there a formula?
>>>
>>>My shapefiles are coded with units dd and by "try and error" I guess some
>>>*big* numbers for the scale. But I would like to calculate them.
>>>
>>>TIA,
>>>
>>>HolgeR
>>>
>
>