Resolution translates directly into image size, as pixels in a browser have fixed physical dimensions for any given screen size, resolution, and scaling (browser pixels do not necessarily map 1:1 to screen pixels). The Visualization API is not aware of (and cannot be made aware of) the difference between a browser pixel and a screen pixel. Fortunately, the difference does not matter, as the charts are drawn as vector graphics, which the browser should render at the screen's native resolution; thus, you cannot get a "higher resolution" chart than your specified dimensions.
I am not certain how this works when the SVG is converted to an image/octet stream; either you will have a native pixel resolution image (which is the highest it could be, given the dimensions you specified), or you will get a browser-pixel resolution image, in which case you will need to draw a larger version of the chart to get the higher resolution that you want. On Wednesday, August 20, 2014 7:34:49 AM UTC-4, Yehonathan Sharvit wrote: > > How can I draw a chart with a high resolution? > > The only way I found is to increase the dimension of the chart. But this > will also increase the size of the chart on the screen which is undesired. > > Is there a way ton increase the resolution of the chart without increasing > its size on the screen? > The purpose is to create a high resolution png image. > > On Friday, 8 February 2013 17:38:49 UTC+2, asgallant wrote: >> >> Draw the chart in whatever resolution you want; as far as I am aware, >> there is no upper bound to the dimensions. You can then save the chart as >> an image using this: http://jsfiddle.net/SCjm8/1/ (note that this code >> works best in Chrome or Firefox, anmd will not work at all in older >> versions of IE). >> >> On Friday, February 8, 2013 10:10:43 AM UTC-5, denise ammons wrote: >>> >>> I need to print out a google chart high resolution for a poster is >>> there a way to do that?? >>> >> -- 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.
