MapScript - Show numbered coordinates as numbered dots on a map

Mike Saunt mikesaunt at GMAIL.COM
Mon Dec 4 06:35:33 PST 2006


Hi Martijn

I think you can do this without MapScript all through the standard (but
powerful!!) CGI


Basically I would think you have two ways of creating a layer for MapServer
to read -
On the fly (if your data is constantly chainging) - you can create a VRT
file (Virtual Datasource ) to read the CSV and then it will be similar to a
standard layer.   This may have speed implications although I've used these
when reading dynamically from an ODBC database and it is fast enough

OR

Create a shape file with the FWTools - ogr2ogr - this will mean that you
have a base shape file that is quick.  If your data changes say daily you
can always setup a batch file or script (presuming windows) and run
scheduled tasks to recreate - I use this at a number of sites.#

I would then think that you can create the required classes to have symbols
at different sizes depending on a field value and also simply apply a label
to the centre of the symbol.

Hope this helps...

Regards
Mike



On 04/12/06, Martijn van Exel <M.vanExel at bridgis.nl> wrote:
>
>  Dear scripters,
>
>
>
> I have a tab-separated text file containing numbered points (number / x /
> y). I want to parse this file and put the points on the map as numbered
> dots. How do I go about doing this in (C#) MapScript? Can I determine the
> size of the dots and the size, font and colour of the numbers? Can I make
> the numbers appear centered inside the dots?
>
>
>
> Much appreciated,
>
> Met vriendelijke groeten,
> Bridgis B.V.
>
> Martijn van Exel
> Manager Data Service Centre
>
> Sint Walburgkerkpad 3
> 4001 MG  Tiel
> T (0344) 63 62 42
> M (06) 534 75 786
>
> *Vraag een nieuwe DSP-licentie aan via dsp.bridgis.nl*
>
>
>
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