Hi Léon, You have the right idea, but the order of your code is the problem. You assign to the high and low variables after you use them in your option structure. Just move your option assignment to just before your "Instantiate" comment, and it should work.
On Wed, Dec 17, 2014 at 3:10 PM, Léon Boers <[email protected]> wrote: > Hi Everyone, > > I'm trying to have the maxValue and minValue drawn dynamically based on > the charts data. the chart is showing temperature over a periode of time > and I want to flatten out the chart. > > I'm trying to use var high = ((data.getColumnRange(1).max) + 3); to add a > small value to the max temperature it finds. currently the alert (high); > actually shows 24 when opening the chart (21 is the max value found) so > that part works.I just cant get it to be the maxValue. > > when i manually type in > > maxValue: 24, > > it seems to work fine. > Hope anyone can point me in the right direction. > > > here's the code i'm using > > <html> > <head> > <!--Load the AJAX API--> > <script type="text/javascript" src="https://www.google.com/jsapi > "></script> > <script type="text/javascript" src="// > ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> > <script type="text/javascript"> > > // Load the Visualization API and the piechart package. > google.load('visualization', '1', {'packages':['corechart']}); > > // Set a callback to run when the Google Visualization API is loaded. > google.setOnLoadCallback(drawChart); > > function drawChart() { > var jsonData = $.ajax({ > url: "getData2.php", > dataType:"json", > async: false > }).responseText; > > > var options = { > > width: 900, > height: 500, > title: 'Temperatuur Woonkamer', > hAxis: { > format: 'EE HH:mm' > }, > vAxis: { > maxValue: high, > minValue: low, > title: 'Temperatuur C' > } > }; > // Create our data table out of JSON data loaded from server. > var data = new google.visualization.DataTable(jsonData); > > var high = ((data.getColumnRange(1).max) + 3); > var low = (data.getColumnRange(1).min); > alert (high); > > var dateFormatter = new google.visualization.DateFormat({pattern: > 'dd-MM-yyyy HH:mm'}); > dateFormatter.format(data, 0); > > > // Instantiate and draw our chart, passing in some options. > var chart = new > google.visualization.LineChart(document.getElementById('chart_div')); > chart.draw(data, options); > } > > </script> > </head> > > <body> > <!--Div that will hold the pie chart--> > <div id="chart_div"></div> > </body> > </html> > > Regards, > Léon > > -- > You received this message because you are subscribed to the Google Groups > "Google Visualization API" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to > [email protected]. > Visit this group at > http://groups.google.com/group/google-visualization-api. > For more options, visit https://groups.google.com/d/optout. > -- Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2> - 978-394-1058 [email protected] <[email protected]> 5CC, Cambridge MA [email protected] <[email protected]> 9 Juniper Ridge Road, Acton MA -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-visualization-api. For more options, visit https://groups.google.com/d/optout.
