How can I create image of google chart in objective c - iphone

Question

I was looking for some ready code so I could insert my data, labels etc. into a function and receive a ready google-chart like this.
But I didn't find any. Any ideas?

Answer 1

In the mean time, I wrote a function that receive all the necessary parameters, creates a google chart and converts it UIImage. Here it is:
-(UIImage )produceGoogleChartImage:(NSString)title
xAxis:(NSArray*)axisXLabels
yAxis:(NSArray*)axisYLabels
andData:(NSArray*)dataValues
color:(NSString*)lineColor
chartWidth:(NSNumber*)width
chartHight:(NSNumber*)hight
lagendLabel:(NSString*)legend
minScale:(NSNumber*)minScale
maxScale:(NSNumber*)maxScale{
NSMutableString *myurl = [NSMutableString stringWithString:#"http://chart.googleapis.com/chart?chxl=0:|"];
//axisXLabels
int countAxisXLabels = [axisXLabels count];
for(NSUInteger i = 0; i < countAxisXLabels; ++i)
{
NSNumber *value = [axisXLabels objectAtIndex:i];
[myurl appendFormat:#"%#", value];
if(i < countAxisXLabels - 1)
[myurl appendString:#"|"];
}
[myurl appendString:#"|1:|"];
//axisYLabels
int countAxisYLabels = [axisYLabels count];
for(NSUInteger i = 0; i < countAxisYLabels; ++i)
{
NSNumber *value = [axisYLabels objectAtIndex:i];
[myurl appendFormat:#"%#", value];
if(i < countAxisYLabels - 1)
[myurl appendString:#"|"];
}
[myurl appendString:#"&chxr=0,0,105|1,3.333,100&chxt=x,y&chs="];
//size
[myurl appendFormat:#"%#x%#&cht=lc&chd=t:", width,hight];
//dataValues
int countDataValues = [dataValues count];
for(NSUInteger i = 0; i < countDataValues; ++i)
{
NSNumber *value = [dataValues objectAtIndex:i];
[myurl appendFormat:#"%#", value];
if(i < countDataValues - 1)
[myurl appendString:#","];
}
//legend
[myurl appendFormat:#"&chdl=%#&chg=25,50&chls=2&",legend];
//color
[myurl appendFormat:#"chm=o,%#,0,-2,8&chco=%#",lineColor,lineColor];
//title
[myurl appendFormat:#"&chtt=+%#",title];
//scale
[myurl appendFormat:#"&chds=%#,%#",minScale,maxScale];
NSString *theurl=[myurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *theRequest=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:theurl]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:60.0];
NSURLResponse* response;
NSError* error;
NSData *imageData=[NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response
error:&error];
NSLog(#"%#",error);
NSLog(#"%#",response);
NSLog(#"%#",imageData);
UIImage *myimage = [[UIImage alloc] initWithData:imageData];
return myimage;
// Chart Wizard: https://developers.google.com/chart/image/docs/chart_wizard
}
And here is the test function:
-(void)test{
NSString* title = #"Height History";
NSArray *axisXLabels = [NSArray arrayWithObjects:
#"Jan",
#"Feb",
#"Mar",
#"Jun",
#"Jul",
#"Aug",
nil];
NSArray *axisYLabels = [NSArray arrayWithObjects:
[NSNumber numberWithInt:0],
[NSNumber numberWithInt:50],
[NSNumber numberWithInt:150],
[NSNumber numberWithInt:200],
nil];
NSArray *dataValues = [NSArray arrayWithObjects:
[NSNumber numberWithInt:130],
[NSNumber numberWithInt:140],
[NSNumber numberWithInt:140],
[NSNumber numberWithInt:150],
[NSNumber numberWithInt:170],
[NSNumber numberWithInt:180],
nil];
NSString *lineColor = #"FF9900";
NSNumber *width = [NSNumber numberWithInt:300];
NSNumber *hight = [NSNumber numberWithInt:200];
NSNumber *minScale = [NSNumber numberWithInt:0];
NSNumber *maxScale = [NSNumber numberWithInt:200];
NSString *legendLabel = #"cm";
UIImage *myimage =[self produceGoogleChartImage:title xAxis:axisXLabels yAxis:axisYLabels andData:dataValues color:lineColor
chartWidth:width chartHight:hight lagendLabel:legendLabel
minScale:minScale maxScale:maxScale];
_chartImage.image=myimage;
}
You should get image, like the one in the question.