param

PowerShell Help
1

I Wrote this Code and i wanted use it with Parameter:
Param( [double]$MinLon, [double]$MinLat, [double]$MaxLon, [double]$MaxLat)
$url = ‘http://www.overpass-api.de/api/xapi?node[bbox=$MinLon,$MinLat,$MaxLon,$MaxLat][natural=tree][@meta]’
$output = “C:\Users\alo\Desktop\Muenchen.osm”
Invoke-WebRequest -Uri $url -OutFile $Output
Then in Powre Shell i wrote : .\Muenchen.ps1 -$MinLon 5.97 -$MinLat 50.66 -$MaxLon 6.21 -$MaxLat 50.85
but it didn’t work well.
Can any give me one please tips.
Thank you alot.

 

2

You parameter usage during calling the script is wrong.

 .\Muenchen.ps1 -MinLon 5.97 -MinLat 50.66 -MaxLon 6.21 -MaxLat 50.85

I suggest you to get some pure basics by reading the help docs and videos on PowerShell scripting .

A well recommended book is this book by Don Jones.

Note: And always use code posting tags while posting code in the forum.

3

There is no .osm script type in PS.

I assume you meant .psm1, but even then that is a module specification that a script calls. So, this should be .ps1 as you have in your final line.

As for this…

$url = 'http://www.overpass-api.de/api/xapi?node[bbox=$MinLon,$MinLat,$MaxLon,$MaxLat][natural=tree][@meta]'

That is just a explicit sting, and those variable will not expand the value. You use double quotes for expand variable content.

As for this…

.\Muenchen.ps1 -$MinLon 5.97 -$MinLat 50.66 -$MaxLon 6.21 -$MaxLat

… this is not how you’d specify the params, you just use the name, not the variable $name.

So, this…

Function New-Muenchen
{
    Param
    (
        [double]$MinLon,
        [double]$MinLat,
        [double]$MaxLon,
        [double]$MaxLat
    )

    $url = "http://www.overpass-api.de/api/xapi?node[bbox=$MinLon,$MinLat,$MaxLon,$MaxLat][natural=tree][@meta]"
    $output = "C:\Users\alo\Desktop\Muenchen.ps1"

    Invoke-WebRequest -Uri $url -OutFile $Output
}
New-Muenchen -MinLon 5.97 -MinLat 50.66 -MaxLon 6.21 -MaxLat 50.85
4

Thanks for you answer. I maybe describes my problem not so good.

I wrote this Code and

$minLon = Read-Host "Pleas enter minLon"$minLat = Read-Host "Pleas enter minLat"$maxLon = Read-Host "Pleas enter maxLon"$maxLat = Read-Host "Pleas enter maxLat"$url = '<a href="https://slack-redir.net/link?url=http%3A%2F%2Fwww.overpass-api.de%2Fapi%2Fxapi%3Fnode%5Bbbox%3D&v=3" target="_blank" rel="noopener noreferrer">http://www.overpass-api.de/api/xapi?node[bbox=</a> {0},{1},{2},{3}][natural=tree][@meta]' -f $minLon,$minLat,$maxLon,$maxLat$output = "C:\Users\alo\Desktop\Treese.osm"$start_time = Get-DateInvoke-WebRequest -Uri $url -OutFile $outputWrite-Output "Time taken: $((Get-Date).Subtract($start_time).Seconds) second(s)"

and it works very good but i want modify it so i can enter coordinaten(minLon,minLat,maxLon,maxLat) by invoke script in one line i mean.

5

Thanks very much for hint

6

You have got your answer here