I get it. It works for now, but when you have it implemented across a wider variety of charts, I would suggest listing the CLI method under the chart, and then linking to the CLI object methods in the description.
On Wednesday, August 14, 2013 9:55:21 AM UTC-4, [email protected] wrote: > > Thanks for the suggestions! I've clarified getHAxisValue/getVAxisValue as > you've suggested; that'll go live soon. > > On your second point, that getBoundingBox and friends are methods of > ChartLayoutInterface, rather than of the chart itself: love to fix that, > but I don't see a better way to present that information. This is one of > those instances where there's a tradeoff between precision and simplicity, > and I opted for the latter. I could ram that information into the leftmost > column, but that would be ugly. I could create a separate section later for > CLI methods, but that wouldn't help readers who start with the "Methods" > header and scan downwards to get a sense of what they can do with the > chart. So I decided to obscure the parent class in the leftmost column and > clarify the usage in the rightmost column by saying either > > var cli = chart.getChartLayoutInterface(); > > or > > chart.getChartLayoutInterface() > > to give readers a self-contained usage example. > > Surely more detail than you wanted to know, but I just wanted to explain > why I made the decision I did. > > Jon > > On Tue, Aug 13, 2013 at 7:33 PM, asgallant > <[email protected]<javascript:> > > wrote: > >> Sweeeeet! It might help to clarify in the getHAxisValue/getVAxisValue >> methods that "position" is an offset from the chart container's left/top >> edge. Also, organizationally, it should be made clear that the >> ChartLayoutInterface methods are methods of the CLI and not the chart (as >> is, the layout implies that these methods are all methods of the chart >> object). The descriptions are clear enough, it's just a layout issue. >> >> >> On Tuesday, August 13, 2013 12:54:27 PM UTC-4, [email protected] wrote: >> >>> Hi Drew, our team pays pretty close attention to your chart fantasies :-) >>> >>> We recently added documentation on getChartLayoutInterface(), ** >>> getBoundingBox(), and a few friends. See, for example, >>> https://developers.google.com/**chart/interactive/docs/** >>> gallery/columnchart#Methods<https://developers.google.com/chart/interactive/docs/gallery/columnchart#Methods> >>> >>> Doesn't give you everything you want, and not all charts support them, >>> but it's a start! >>> >>> Jon >>> >>> >>> On Tue, Aug 13, 2013 at 6:34 PM, asgallant <[email protected]>wrote: >>> >>>> Oh, and consider that super-wishlisty. I'm sure you guys have much >>>> better things to do with the API than indulge my chart fantasies. >>>> >>>> >>>> On Tuesday, August 13, 2013 12:31:43 PM UTC-4, asgallant wrote: >>>>> >>>>> I would love for there to be a way to pull metadata from the chart >>>>> about things like the axes, labels, element positions, and element sizes >>>>> (eg, where are the top and left edges of this bar, how wide is it, how >>>>> tall >>>>> is it? What are the pixel coordinates of this point on a line? What are >>>>> the axis tick marks, and what are their y-axis pixel coordinates?). Some >>>>> of this information I can tease out of the SVG, but I don't like to do >>>>> that, knowing that updates to the API can make subtle changes in the SVG >>>>> structure that break the parsing code (not to mention the cross-browser >>>>> issues with trying to parse the same information out of VML). >>>>> >>>>> On Tuesday, August 13, 2013 12:18:09 PM UTC-4, Daniel LaLiberte wrote: >>>>>> >>>>>> Luke, >>>>>> >>>>>> I can see that it would be useful to find out what the chart is >>>>>> doing so you can process things like the axis bounds in other contexts, >>>>>> but >>>>>> there is no way to do that currently, unless you query the generated >>>>>> display elements (which is generally not recommended). We are thinking >>>>>> about ways to expose such information with a general capability, so we >>>>>> are >>>>>> open to suggestions. >>>>>> >>>>>> dan >>>>>> >>>>>> >>>>>> On Mon, Aug 12, 2013 at 10:51 PM, Luke Bellamy <[email protected] >>>>>> > wrote: >>>>>> >>>>>>> Daniel, >>>>>>> Just wanted to throw out an idea. If I can programatically get the >>>>>>> min, max, interval values for the axis itself (not the data) that was >>>>>>> rendered, I could effectively give the image charts a "hint". >>>>>>> So after the draw() method I could say, now give me the axis values >>>>>>> you are using. Then fire off my ajax request to generate the >>>>>>> corresponding >>>>>>> image charts. >>>>>>> >>>>>>> I had a little play but could not see the method to get that >>>>>>> information from the 'google.visualization.**ComboCha**rt' object. >>>>>>> Is it possible? >>>>>>> >>>>>>> Thankyou, >>>>>>> Luke >>>>>>> >>>>>>> >>>>>>> On Tuesday, August 13, 2013 9:59:01 AM UTC+10, Luke Bellamy wrote: >>>>>>> >>>>>>>> Hi, >>>>>>>> I'm using google charts (basic combo chart) on a web site. Awesome, >>>>>>>> no problem with that. I wish to put this into a PDF. So what I did was >>>>>>>> using the deprecated image charts to generate an image using the same >>>>>>>> data >>>>>>>> and making them look the same. Works great. >>>>>>>> >>>>>>>> My issue is that the vertical axis intervals, min, and max are not >>>>>>>> the same. I understand why and I prefer the 'pretty' axis scaling in >>>>>>>> google >>>>>>>> charts. So I thought I would come up with an algorithm myself using >>>>>>>> the min >>>>>>>> and max from the data to come up with the range and intervals. This is >>>>>>>> for >>>>>>>> the old image charts. Works very well, but in a couple of scenarios I >>>>>>>> can >>>>>>>> see it's not EXACTLY the same, although close. Note that these are >>>>>>>> very >>>>>>>> basic charts so I'm not doing anything fancy. It would just be nice if >>>>>>>> they >>>>>>>> looked identical. >>>>>>>> >>>>>>>> My question is, can I find the axis range and interval algorithm >>>>>>>> from google charts somewhere? I did see the google visualization java >>>>>>>> code >>>>>>>> available but code not find what I was after. >>>>>>>> Here is the basic bit of code I have been tweaking in JAVA for >>>>>>>> image charts to mirror the axis algorithm of google charts. >>>>>>>> >>>>>>>> // Take the Max/Min of all data values in all graphs >>>>>>>> var totalMax = 345; >>>>>>>> var totalMin = -123; >>>>>>>> >>>>>>>> // Figure out the largest number (positive or negative) >>>>>>>> var biggestNumber = Math.max(Math.abs(totalMax),**Ma**** >>>>>>>> th.abs(totalMin)); >>>>>>>> >>>>>>>> // Round to an exponent of 10 appropriate for the biggest number >>>>>>>> var roundingExp = Math.floor(Math.log(**biggestNum****ber) / >>>>>>>> Math.LN10); >>>>>>>> var roundingDec = Math.pow(10,roundingExp); >>>>>>>> >>>>>>>> // Round your max and min to the nearest exponent of 10 >>>>>>>> var newMax = roundHalfUp(totalMax/**roundingD****ec)*roundingDec; >>>>>>>> var newMin = roundHalfDown(totalMin/**roundin****gDec)*roundingDec; >>>>>>>> >>>>>>>> // Determine the range of your values >>>>>>>> var range = newMax - newMin; >>>>>>>> >>>>>>>> // Define the number of gridlines (default 5) >>>>>>>> var gridlines = 5; >>>>>>>> >>>>>>>> // Determine an appropriate gap between gridlines >>>>>>>> var interval = range / (gridlines - 1); >>>>>>>> >>>>>>>> // Round that interval up to the exponent of 10 >>>>>>>> var newInterval = roundHalfUp(interval/**roundingD**** >>>>>>>> ec)*roundingDec; >>>>>>>> >>>>>>>> // Re-round your max and min to the new interval >>>>>>>> var finalMax = Math.ceil(totalMax/**newInterval****)*newInterval; >>>>>>>> var finalMin = Math.floor(totalMin/**newInterva****l)*newInterval; >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Thankyou, >>>>>>>> Luke >>>>>>>> >>>>>>> -- >>>>>>> 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 google-visualization-api+**unsub** >>>>>>> [email protected]. >>>>>>> To post to this group, send email to google-visua...@googlegroups.** >>>>>>> c**om. >>>>>>> Visit this group at http://groups.google.com/**group** >>>>>>> /google-visualization-api<http://groups.google.com/group/google-visualization-api> >>>>>>> **. >>>>>>> For more options, visit >>>>>>> https://groups.google.com/**grou**ps/opt_out<https://groups.google.com/groups/opt_out> >>>>>>> . >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Daniel LaLiberte<https://plus.google.com/100631381223468223275?prsrc=2> >>>>>> - 978-394-1058 >>>>>> [email protected] 562D 5CC, Cambridge MA >>>>>> [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 google-visualization-api+**[email protected]. >>>> To post to this group, send email to google-visua...@**googlegroups.com >>>> . >>>> Visit this group at http://groups.google.com/** >>>> group/google-visualization-api<http://groups.google.com/group/google-visualization-api> >>>> **. >>>> For more options, visit >>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>>> . >>>> >>>> >>>> >>> >>> -- >> 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]<javascript:> >> . >> To post to this group, send email to >> [email protected]<javascript:> >> . >> Visit this group at >> http://groups.google.com/group/google-visualization-api. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. 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