Problem with this scatter Map

[ecabanas]

Hi,

I'm trying to fix, but, no data appears, any help?

thank's

[jerem1234]

You have the expression:

=sum( round (256*pow(2,($(var_zoom)-1)))+( longitude  *((256*pow(2,$(var_zoom)))/360)) )

but you do not have a variable var_zoom declared or defined.

[ecabanas]

now it's loaded the varzoom andstill not working

[jerem1234]

Seems like your latitude and longitude were in text format.

Here use these expressions:

Longitude:

=sum( num(round (256*pow(2,($(var_zoom)-1)))+num#(longitude, '#.##0.00000')*((256*pow(2,$(var_zoom)))/360),  '#.##0.00000') )

Latitude:

=sum(num(  ((256*pow(2,($(var_zoom)-1)))+((0.5*log((1+(sin((num#(latitude, '#.##0.00000'))*pi()/180)))/(1-(sin((num#(latitude, '#.##0.00000'))*pi()/180)))))*((-256*pow(2,$(var_zoom)))/(2*pi())))), '#.##0.00000'))

Hope this helps.

[ecabanas]

Hi Jerem

Now its starting to work, but only if you choose only one longitude...

[jerem1234]

Try to watch where you put mins and maxes, try this expression for your variable var_zoom:

=max(aggr(if(round(256*pow(2,(max(_zoom_level) -1)))+( max(longitude)  *((256*pow(2,max(_zoom_level) ))/360)) - round(256*pow(2,(min(_zoom_level) -1)))+( min(longitude)  *((256*pow(2,min(_zoom_level) ))/360))  <400 AND (256*pow(2,(max(_zoom_level)-1)))+((0.5*log((1+(sin((max(latitude))*pi()/180)))/(1-(sin((max(latitude))*pi()/180)))))*((-256*pow(2,max(_zoom_level)))/(2*pi())))- (256*pow(2,(min(_zoom_level)-1)))+((0.5*log((1+(sin((min(latitude))*pi()/180)))/(1-(sin((min(latitude))*pi()/180)))))*((-256*pow(2,min(_zoom_level)))/(2*pi())))<400,_zoom_level,null()),_zoom_level))

Look over where i put the mins and maxes to see if thats what you wanted.

[ecabanas]

Hi Jerem,

I tryed and now appears, a dot, but no map image in background, you know

why? it is very very difficult to work, at the end is easier an extension,

no?

Thanks

Eduard

2013/7/16 jerem1234 <qcwebmaster@qlik.com>

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Re: Problem with this scatter Map created by jerem1234<http://community.qlik.com/people/jerem1234>in

Development (QlikView Desktop) - View the full discussion<http://community.qlik.com/message/368534#368534>

[jerem1234]

Not exactly sure why, there are a lot of calculations going on. Could be a mistake somewhere in one of them such as the static maxes or mins. But an extension would probably be easier, just search around the Qlikcommunity site to find posts about extensions, they are out there.