Thanks for that, I will look into it. On 24 Feb 2014 16:56, "asgallant" <[email protected]> wrote:
> The AnnotatedTimeline charts are probably not going to see any fixes, as > the charts team just released the new version > AnnotationChart<https://developers.google.com/chart/interactive/docs/gallery/annotationchart>that > replaces the old Flash-based version with an SVG/VML based version. > The new chart probably isn't available in GWT yet, but if it is possible > for you to move to the javascript API, that is the way forward. As I > understand it, the GWT package should support outputting a DataTable to > javascript (either via direct output or AJAX). > > On Sunday, February 23, 2014 12:00:28 PM UTC-5, mzm wrote: >> >> Edit: I have noticed that if I set in options allowRedraw(false) all >> these problems will be solved. There was also a problem with subsequent >> redraws not noticing changes in the data file, which is solved with this as >> well. So the way allowRedraw functions must represent the problem. But I >> really need allow redraw since now each subsequent redraw is very slow and >> has an obvious flash on the screen. >> >> On Sunday, February 23, 2014 4:06:31 PM UTC, mzm wrote: >>> >>> >>> <https://lh4.googleusercontent.com/-iO10p-XW_aE/UwocaC4p3_I/AAAAAAAAAI4/frMkvttCsJ0/s1600/part2.png> >>> >>> >>> <https://lh5.googleusercontent.com/-xIeY3cCIhiY/UwocVl88Z5I/AAAAAAAAAIw/t7kAfC2vKp8/s1600/part1.png> >>> I posted this questions on >>> StackOverflow<http://stackoverflow.com/questions/21964147/gwt-google-visualization-subsequent-redraws-change-number-of-y-axis-steps>already, >>> but I thought this might be a better place to ask. >>> >>> I am having a weird bug with GWT google visualization library wrapper, >>> specifically AnnotatedTimeLine. >>> >>> Namely, I draw my chart on the initial ajax call to google visualization >>> tools, and then I redraw it every 5 seconds using a timer. Each time it >>> redraws, the "steps" on Y axis change their values and frequency (sometimes >>> you will have them in more frequent intervals). Note values of graph stay >>> exactly the same. I've included 2 screenshots to show you 2 stances it goes >>> from. On every subsequent redraw, it changes from one stance to another. >>> Note different sentiment values on right side 892 and 900, even though the >>> value on the graph is 903 in both cases. >>> >>> I believe it might be because of double Y axis. On each redraw the focus >>> as the "main" Y axis is changed from one to another. I think that might be >>> supported by the fact that in first one Price is displayed as first >>> parameter, whereas in the second one it is vice versa. >>> Any ideas? >>> >>> Here is my client side code: >>> >>> public class GUI implements EntryPoint { >>> >>> // create a remote service proxy to talk to server side-side >>> data service >>> private final ChartDataServiceAsync chartDataSvc = >>> GWT.create(ChartDataService.class); >>> private AnnotatedTimeLine graph; >>> >>> public void onModuleLoad() { >>> // Create a callback to be called when the visualization API >>> // has been loaded. >>> Runnable onLoadCallback = new Runnable() { >>> public void run() { >>> Panel panel = RootPanel.get(); >>> graph = new AnnotatedTimeLine("1000px", "500px"); >>> // used in css file >>> graph.addStyleName("timeLine"); >>> panel.add(graph); >>> createTable(); >>> } >>> }; >>> >>> // Load the visualization api, passing the onLoadCallback to be >>> called >>> // when loading is done. >>> VisualizationUtils.loadVisualizationApi(onLoadCallback, >>> AnnotatedTimeLine.PACKAGE); >>> >>> Timer timeoutTimer = new Timer() { >>> public void run() { >>> createTable(); >>> // Window.alert("Reloaded chart."); >>> } >>> }; >>> timeoutTimer.scheduleRepeating(1000*5); >>> >>> } >>> >>> >>> and >>> >>> private Options createOptions() { >>> Options options = Options.create(); >>> options.setDisplayZoomButtons(true); >>> options.setDisplayAnnotations(false); >>> options.setAllowRedraw(true); >>> options.setDateFormat("MMMM dd, yyyy"); >>> options.setDisplayDateBarSeparator(true); >>> options.setDisplayExactValues(true); >>> options.setDisplayRangeSelector(false); >>> options.setThickness(2); >>> options.setScaleColumns(0,1); >>> options.setScaleType(ScaleType.ALLMAXIMIZE); >>> Map<Integer,String> m1 = new LinkedHashMap<Integer,String>(); >>> m1.put(0,".0000"); >>> m1.put(1, "######"); >>> options.setNumberFormats(m1); >>> return options; >>> } // end createOptions() >>> >>> private void createTable() { >>> >>> final DataTable data = DataTable.create(); >>> data.addColumn(ColumnType.DATE, "Date"); >>> data.addColumn(ColumnType.NUMBER, "Price"); >>> data.addColumn(ColumnType.NUMBER, "Sentiment"); >>> >>> // Set up the callback object. >>> AsyncCallback<List<PriceData>> callback = new >>> AsyncCallback<List<PriceData>>() { >>> public void onFailure(Throwable caught) { >>> // TODO: Do something with errors. >>> System.out.println("RPC call failed!"); >>> } >>> >>> public void onSuccess(List<PriceData> result) { >>> System.out.println("success!"); >>> data.addRows(result.size()); >>> for (int i = 0; i < result.size(); i++) { >>> String dateString = result.get(i).getDate(); >>> DateTimeFormat form1 = DateTimeFormat.getFormat("dd/MM/yyyy >>> HH:mm:ss"); >>> Date d = form1.parse(dateString); >>> data.setValue(i, 0, d); >>> data.setValue(i, 1, result.get(i).getPrice()); >>> data.setValue(i, 2, i); >>> } >>> // Create a chart visualization. >>> graph.draw(data, createOptions()); >>> >>> } >>> }; >>> // Make the call to the stock price service. >>> chartDataSvc.getChartData("Prices.csv", callback); >>> } // end createTable() >>> >>> RPC call just fetches the data from the file on server. >>> >>> Any ideas how I might fix this? >>> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "Google Visualization API" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/google-visualization-api/8PMLCJFL2ms/unsubscribe > . > To unsubscribe from this group and all its topics, 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/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. 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