It should be possible. You can turn both option objects into strings and
manipulate them that way using JSON.stringify() to create a single set of
options.
// Set chart options
var options = {'title':'How Much Pizza I Ate Last Night',
'width':400,
'height':300};
myStr = JSON.stringify(options);
alert( myStr);
Depending on how you are drawing your chart you can also try
using setOption or setOptions in the chartWrapper methods documentation
at https://developers.google.com/chart/interactive/docs/reference#methods_2
Some time ago, before I really knew what I was doing, I wrote the page
at https://www.indstate.edu/business/metrics
Here's part of the code from that to show the use of setOption
theGraphs = new google.visualization.ChartWrapper({
chartType: userChart,
containerId: graphArea,
dataTable: myObject.datatable,
// These are options applied to all graphs
options: {
height: 400,
hAxis: {
maxTextLines: 4, // maximum number of lines to wrap to
maxAlternation: 4, // maximum layers of labels (setting this higher
than 1 allows labels to stack over/under each other)
minTextSpacing: 1, // minimum space in pixels between adjacent labels
},
textStyle: {
fontSize: 9
},
legend: {
position: "top",
maxLines: 5
},
colors: usrClr
}
});
// Add options for individual charts here
if (myObject.ID == "MSDC1" || myObject.ID == "MSDC2") {
theGraphs.setOption('hAxis.title', 'Figures are number of engaged
students');
theGraphs.setOption('title', 'Figures are number of engaged students');
theGraphs.setOption('titleTextStyle.italic', true);
theGraphs.setOption('titleTextStyle.bold', false);
}
On Monday, December 21, 2020 at 5:34:03 PM UTC-5 Thijs Alberts wrote:
> Hello please consider this:
>
> function myCallback() {
> callback = google.visualization.drawChart({
> containerId: <containerId>,
> dataSourceUrl: <url>,
> chartType: "...",
> options: <defined here>
> });
> }
> my data url returns a json literal object eg:
> {
> data: {cols:..., rows:...}} //normal datatable in literal notation
> options: {chartOptions} // eg: title + subtitle etc based on query
> }
>
> Is it possible to merge options from the literal response with the options
> set in the callback?
>
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