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0 votes
43 views

This issue repros on Android 4.4 API 19, but not API 27. It happens with the example project (Multi-Pane Stock Charts). The issue is that on certain zoom levels, the x-axis labels are cut off (so instead of displaying 11 Mar, it just displays 11).

I have tried to override TradeChartAxisLabelFormatter with my custom implementation but saw the same issue, so the bug seems to be in the provider or somewhere else.

Please see screenshot: https://imgur.com/a/2RDC2MZ

  • Mike Liu asked 2 weeks ago
  • last active 2 weeks ago
0 votes
43 views

When using GLTextureView on Android 4.4 API 19, there are a few issues. The same issue does not occur on API 27. Have not tested other API levels. If you do not use GLTextureView, this issue doesn’t happen (but due to theming bugs I have to use GLTextureView and not the other 2 types of render surfaces).

  1. If activity A has a SciChartSurface and activity B has a SciChartSurface and appears above activity A, then the surface in A dissapears (Shows blank) when you return to it. 100% repro for me. Let me know if you need more info.

  2. Due to 1? If you try to re-render the chart on activity A, it will lead to an ANR (app freezes indefinitely) after a few times (see below)

  3. Even if you don’t have activity B and only activity A, if you interact with it a few times and show/hide it, it will lead to an ANR (app freezes indefinitely) as well (see below):

ANR log (it freezes the app until you kill it):

09-03 13:01:40.583 1690-1705/system_process E/ActivityManager: ANR in co..stocks (co..stocks/.ui.screens.home.MainActivity)
PID: 12076
Reason: Input dispatching timed out (Waiting because the touched window has not finished processing the input events that were previously delivered to it.)
Load: 0.64 / 0.49 / 0.39
CPU usage from 6217ms to 779ms ago:

  • Mike Liu asked 2 weeks ago
  • last active 2 weeks ago
0 votes
44 views

I’m using a CategoryDateAxis and seeing the following crash many times in production. The issue is that SciChart is not synchronizing access to SimpleDateFormat, and this will lead to a crash.

Please see following thread for more details on how to fix this issue:
https://bugs.java.com/bugdatabase/view_bug.do?bug_id=6231579

Crash log:

java.lang.ArrayIndexOutOfBoundsException: length=6; index=-4
at sun.util.calendar.BaseCalendar.getCalendarDateFromFixedDate(BaseCalendar.java:453)
at java.util.GregorianCalendar.computeFields(GregorianCalendar.java:2411)
at java.util.GregorianCalendar.computeFields(GregorianCalendar.java:2321)
at java.util.Calendar.setTimeInMillis(Calendar.java:1787)
at java.util.Calendar.setTime(Calendar.java:1749)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:981)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:974)
at java.text.DateFormat.format(DateFormat.java:341)
at com.scichart.charting.numerics.labelProviders.TradeChartAxisLabelFormatter.formatLabel(SourceFile:124)
at com.scichart.charting.numerics.labelProviders.FormatterLabelProviderBase.formatLabel(SourceFile:70)
at com.scichart.charting.numerics.labelProviders.CategoryLabelProviderBase.formatLabel(SourceFile:113)
at com.scichart.charting.visuals.axes.AxisBase.formatText(SourceFile:1142)
at com.scichart.charting.visuals.axes.AxisInfo.update(SourceFile:87)
at com.scichart.charting.visuals.axes.AxisTooltip.update(SourceFile:83)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehavior.a(SourceFile:84)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehavior.updateXAxisTooltip(SourceFile:62)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehaviorBase.a(SourceFile:165)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehaviorBase.onUpdate(SourceFile:158)
at com.scichart.charting.modifiers.TooltipModifierWithAxisLabelsBase.handleMasterTouchMoveEvent(SourceFile:190)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase$1.a(SourceFile:129)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase$1.execute(SourceFile:125)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase.a(SourceFile:70)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase.onTouchMove(SourceFile:59)
at com.scichart.charting.modifiers.TouchModifierBase.onTouch(SourceFile:44)
at com.scichart.charting.modifiers.ModifierGroup.onTouch(SourceFile:189)
at com.scichart.core.utility.touch.MotionEventManager.c(SourceFile:140)
at com.scichart.core.utility.touch.MotionEventManager.a(SourceFile:39)
at com.scichart.core.utility.touch.MotionEventManager$a$1.a(SourceFile:224)
at com.scichart.core.utility.touch.MotionEventManager$a$1.execute(SourceFile:221)
at com.scichart.core.utility.touch.MotionEventManager$a.a(SourceFile:211)
at com.scichart.core.utility.touch.MotionEventManager$a.onTouchEvent(SourceFile:183)
at com.scichart.charting.visuals.SciChartSurface.onTouchEvent(SourceFile:1251)
at android.view.View.dispatchTouchEvent(View.java:11776)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2962)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2643)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
09-02 01:42:23.356 17621-17621/? E/AndroidRuntime: at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:448)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1829)
at android.app.Activity.dispatchTouchEvent(Activity.java:3307)
at android.support.v7.view.i.dispatchTouchEvent(WindowCallbackWrapper.java:68)
at android.support.v7.view.i.dispatchTouchEvent(WindowCallbackWrapper.java:68)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:410)
at android.view.View.dispatchPointerEvent(View.java:12015)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4795)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4609)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4293)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4350)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6661)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6635)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6596)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6764)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:186)
at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:177)
at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:6735)
at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:6787)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:652)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
09-02 01:42:35.433 2145-2162/? E/BatteryExternalStatsWorker: modem info is invalid: ModemActivityInfo{ mTimestamp=0 mSleepTimeMs=0 mIdleTimeMs=0 mTxTimeMs[]=[0, 0, 0, 0, 0] mRxTimeMs=0 mEnergyUsed=0}

Another crash:

java.lang.ArrayIndexOutOfBoundsException: length=13; index=15
at sun.util.calendar.BaseCalendar.getCalendarDateFromFixedDate(BaseCalendar.java:453)
at java.util.GregorianCalendar.computeFields(GregorianCalendar.java:2411)
at java.util.GregorianCalendar.computeFields(GregorianCalendar.java:2321)
at java.util.Calendar.setTimeInMillis(Calendar.java:1787)
at java.util.Calendar.setTime(Calendar.java:1749)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:981)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:974)
at java.text.DateFormat.format(DateFormat.java:341)
at com.scichart.charting.numerics.labelProviders.TradeChartAxisLabelFormatter.formatLabel(SourceFile:124)
at com.scichart.charting.numerics.labelProviders.FormatterLabelProviderBase.formatLabel(SourceFile:70)
at com.scichart.charting.numerics.labelProviders.CategoryLabelProviderBase.formatLabel(SourceFile:113)
at com.scichart.charting.visuals.axes.AxisBase.formatText(SourceFile:1142)
at com.scichart.charting.visuals.axes.AxisInfo.update(SourceFile:87)
at com.scichart.charting.visuals.axes.AxisTooltip.update(SourceFile:83)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehavior.a(SourceFile:84)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehavior.updateXAxisTooltip(SourceFile:62)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehaviorBase.a(SourceFile:165)
at com.scichart.charting.modifiers.behaviors.AxisTooltipsBehaviorBase.onUpdate(SourceFile:158)
at com.scichart.charting.modifiers.TooltipModifierWithAxisLabelsBase.handleMasterTouchMoveEvent(SourceFile:190)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase$1.a(SourceFile:129)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase$1.execute(SourceFile:125)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase.a(SourceFile:70)
at com.scichart.charting.modifiers.MasterSlaveTouchModifierBase.onTouchMove(SourceFile:59)
at com.scichart.charting.modifiers.TouchModifierBase.onTouch(SourceFile:44)
at com.scichart.charting.modifiers.ModifierGroup.onTouch(SourceFile:189)
at com.scichart.core.utility.touch.MotionEventManager.c(SourceFile:140)
at com.scichart.core.utility.touch.MotionEventManager.a(SourceFile:39)
at com.scichart.core.utility.touch.MotionEventManager$a$1.a(SourceFile:224)
at com.scichart.core.utility.touch.MotionEventManager$a$1.execute(SourceFile:221)
at com.scichart.core.utility.touch.MotionEventManager$a.a(SourceFile:211)
at com.scichart.core.utility.touch.MotionEventManager$a.onTouchEvent(SourceFile:183)
at com.scichart.charting.visuals.SciChartSurface.onTouchEvent(SourceFile:1251)
at android.view.View.dispatchTouchEvent(View.java:11779)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2965)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2643)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
09-03 00:01:08.300 21932-21932/co.mikeliu.stocks E/AndroidRuntime: at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2971)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:448)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1834)
at android.app.Activity.dispatchTouchEvent(Activity.java:3312)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:68)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:68)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:410)
at android.view.View.dispatchPointerEvent(View.java:12018)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4829)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4643)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4181)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4234)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4327)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4208)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4384)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4181)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4234)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4208)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4181)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6755)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6694)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6655)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6858)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:193)
at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:184)
at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:6829)
at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:6881)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:652)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6545)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:809)

  • Mike Liu asked 2 weeks ago
  • last active 2 weeks ago
0 votes
43 views

If you change the logarithmic Y axis to a regular NumericalAxis, the mountain series displays properly (with fill color).

  • Mike Liu asked 3 weeks ago
  • last active 3 weeks ago
0 votes
69 views

I’m seeing the following exception:

E/Exception: null
    java.lang.ArrayIndexOutOfBoundsException: length=0; index=-1
        at com.scichart.core.model.DoubleValues.get(SourceFile:167)
        at com.scichart.charting.numerics.tickProviders.LogarithmicNumericTickProvider.updateTicks(SourceFile:94)
        at com.scichart.charting.numerics.tickProviders.TickProvider.update(SourceFile:59)
        at com.scichart.charting.numerics.tickProviders.DeltaTickProvider.update(SourceFile:81)
        at com.scichart.charting.visuals.axes.AxisBase.onUpdateMeasure(SourceFile:957)
        at com.scichart.charting.visuals.axes.AxisBase.updateAxisMeasurements(SourceFile:936)
        at com.scichart.charting.layoutManagers.RightAlignmentOuterAxisLayoutStrategy.measureAxes(SourceFile:39)
        at com.scichart.charting.layoutManagers.DefaultLayoutManager.onLayoutChart(SourceFile:235)
        at com.scichart.charting.visuals.rendering.RenderSurfaceRenderer.a(SourceFile:207)
        at com.scichart.charting.visuals.rendering.RenderSurfaceRenderer.a(SourceFile:132)
        at com.scichart.charting.visuals.rendering.RenderSurfaceRenderer.onDraw(SourceFile:123)
        at com.scichart.drawing.opengl.RenderSurfaceGL$a.onDraw(SourceFile:234)
        at com.scichart.drawing.opengl.MyGLRenderer.b(SourceFile:299)
        at com.scichart.drawing.opengl.MyGLRenderer.onDrawFrame(SourceFile:283)
        at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1571)
        at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1270)

I’m initializing my chart as follows:

SciChartBuilder.init(context)
builder = SciChartBuilder.instance()

...

val xAxis = builder.newCategoryDateAxis()
                            .withGrowBy(0.0, 0.05)
                            .withAxisAlignment(AxisAlignment.Bottom)
                            .withVisibleRange(sharedXRange)
                            .withDrawMinorGridLines(true)
                            .withDrawMajorGridLines(true)
                            .build()
val yAxis = builder.newLogarithmicNumericAxis()
                            .withTextFormatting("#.#E+0")
                            .withScientificNotation(ScientificNotation.LogarithmicBase)
                            .withLogarithmicBase(2.0)
                            .build()
val seriesData = builder.newXyDataSeries(Date::class.java, Double::class.javaObjectType)
                            .withSeriesName("Series A")
                            .build()
seriesData.append(data.dateData, data.yData)
series = builder.newLineSeries()
                            .withDataSeries(seriesData)
                            .build()

UpdateSuspender.using(surface) {
                Collections.addAll(surface.xAxes, xAxis)
                Collections.addAll(surface.yAxes, yAxis)
                Collections.addAll(surface.renderableSeries, series)
}

data object has about 300 valid data points.

Any ideas what’s going on? I tried running this on a new activity. If I swap LogarithmicNumericAxis for a NumericAxis, everything works fine. I looked at the decompiled .class file where the crash was occurring (I don’t have the source for SciChart), and it seems like the crash occurs when major ticks fail to get generated (majorTicks.size == 0). I tried disabling all minor/major ticks but no joy.

for(int var22 = majorTicks.size(); var22 >= 0; --var22) {
            double var23 = var4.fromExponent(var11);
            double var25 = var22 < majorTicks.size() ? majorTicks.get(var22) : majorTicks.get(var22 - 1) * var23;
  • Mike Liu asked 3 weeks ago
  • last active 3 weeks ago
0 votes
382 views

When I’m writing VisibleRange=”0, 10″ it works as if I’d wrote “0, 1”.
See my video https://youtu.be/nJTW5-3kO_o

0 votes
511 views

If you have multiple axes it appears that the order given isn’t honored on the screen.
If signals A, B, C, D are inserted into a list (inserting each item at the zeroth index) the resulting list is D,C,B,A. The order of the list is ignored and order observed is incorrectly: A,B,C,D. The order of the series/y-axes should reflect the order of the list (not the order in which they were inserted).

The following example has been added which shows this. (Clicking “Insert Signal at beginning” multiple times).

Currently we are using a work-around for which any list change, all signals are removed and re-added in the desired order to get the desired result. This is quite slow and causes flickering and flashing of elements on the screen.

Its been 3 weeks since I’ve heard any response..

1 vote
992 views

I evaluating Scichart for our application and have been testing the Realtime FIFO example.

I have made the following modifications to the example
– Increased number of samples added per timer tick
– Replaced a sin wave with a recording of FPS
– Swapped to DX10 render surface
– Changed Plot Theme
– Added Plot Modifiers for manipulation

When FIFO is enabled and more than 5052 points are added unusual behavior occurs, the line seems to slide backwards and faster than the plot does and there are lines connecting the start and end of the plot.

I have recorded a video that compares running with FIFO enabled vs FIFO disabled.

https://youtu.be/SKi1zRDhq60

I forgot to add that I can get a similar but slightly different glitch by taking the example straight from the example browser and increasing the FIFO length to 10000, see attached image.

  • Hugoagogo asked 2 years ago
  • last active 2 years ago
0 votes
2k views

To whom this may concern:

I’m having a slight issue (bug, possibly?) with custom annotations. I have created a custom annotation with an image (XAML shown below)

<s:CustomAnnotation x:Class="Dashboard.SciChartCustomComponents.CustomAnnotations.MicrostructureAnnotation"
                    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
                    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
                    xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
                    xmlns:local="clr-namespace:Dashboard.SciChartCustomComponents.CustomAnnotations"
                    mc:Ignorable="d">

    <Border BorderBrush="White" BorderThickness="2" Background="Black">
        <StackPanel>
            <Image x:Name="annotationImage" Stretch="None" Width="150" Height="100" Visibility="Collapsed"/>
            <TextBlock x:Name="annotationText" HorizontalAlignment="Center"/>
            <TextBlock x:Name="parameterText" HorizontalAlignment="Center" Visibility="Collapsed"/>
        </StackPanel>
    </Border>

</s:CustomAnnotation>

The image is applied with the following code (note the anchor points are bottom-right):

var annotation = new MicrostructureAnnotation
{
    HorizontalAnchorPoint = HorizontalAnchorPoint.Right,
    VerticalAnchorPoint = VerticalAnchorPoint.Bottom,
    IsEditable = true,
    X1 = xValue, // Both Obtained from hitpoint X- and Y-Values
    Y1 = yValue
};

annotation.annotationImage.Source = // some image Uri
annotation.annotationText.Text = // some text
annotation.parameterText.Text = // some other text

So this successfully shows the annotation as i liked, shown in 1.png.

Now I have a function that collapses the visibility of the image, which yields an annotation that is removed from its anchor point (although the top-left location remains the same), shown in 2.png.

If I try to move the annotation after removing the image, the anchor point is in the location of where the top-left anchor should be when the image collapses but the image is still in the wrong location, shown in 3.png.

When I finally do move the annotation, the annotation moves away from the cursor to the top-left anchor point, shown in 4.png.

Again i’m not sure if this is a bug, but could someone please advise?

Thanks kindly!

— Ari

Edit: I don’t have this problem when setting the anchor points to top-left.

  • Ari Sagiv asked 2 years ago
  • last active 2 years ago
0 votes
1k views

Using MVVM, I have an AnnotationCollection databound to the SciChartSurface.Annotations. Individual LineAnnotations are added to the collection as the application code runs.

If annotations are added while the chart is displayed, they are all drawn correctly.

However, if the chart page is reloaded (say, the user navigates to a different page and then returns to the chart page), the annotations do not always redraw. If the annotations have AnnotationCanvas set to default (AnnotationCanvas.AboveChart, I believe) they redraw correctly about 50% of the time. If the annotations’ AnnotationCanvas is set to AnnotationCanvas.XAxis, they never redraw.

All the annotations still exist in the ObservableCollection in all these cases, so they shouldn’t need to be re-created.

Is this a bug in SciChart or is there something I may be doing wrong with the annotations?
(There is only one X-Axis so no axisID is necessary.)

LineAnnotation lAnno = new LineAnnotation();
lAnno.CoordinateMode = AnnotationCoordinateMode.RelativeY;
lAnno.Y1 = 0.0;
lAnno.X1 = DataPoints;
lAnno.Y2 = 1.0;
lAnno.X2 = DataPoints;
lAnno.YAxisId = "Counts";
lAnno.Foreground = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(255, 255, 255));
lAnno.Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromArgb(96, 255, 0, 0));
lAnno.StrokeThickness = 2;
lAnno.AnnotationCanvas = AnnotationCanvas.XAxis;

Markers.Add(lAnno);
0 votes
2k views

Hello.
I am adding Double.NaN into DataSeries for X-Axis synchronization.
It works fine with 3.x version.
When i have updated scichart to 4.x version, i got filled areas instead of empty areas. But, these filled areas are shown only with big count of points. Filled areas disappeared when i zoom in.
This is how i create renderableseries:

new OhlcRenderableSeriesViewModel
                {
                    DataSeries = ohlc,
                    DrawNaNAs = LineDrawMode.Gaps,
                    AntiAliasing = false,
                    StrokeThickness = 1,
                    StrokeUp = color,
                    StrokeDown = color,
                    Stroke = color
                }
0 votes
0 answers
4k views

My UI works well using 3.1.

This is the second time I have tried to use 3.2.

In my first trial, my UI just crashed when use mouse.

using the latest build of 3.2, my ui has two issues:

1) UI response to mouse roll is not smooth sometimes!

2) Some element just gets disappeared while zooming. I have captured the following video. You can see that the RED circle gets disappeared while zooming out.

https://www.youtube.com/watch?v=1ClXAcMLOBU&feature=youtu.be

  • chunxi asked 4 years ago
  • last active 4 years ago
1 vote
5k views

In my project the output panel showing the following binding errors

System.Windows.Data Error: 40 : BindingExpression path error: 'Exponent' property not found on 'object' ''DefaultTickLabelViewModel' (HashCode=56110932)'. BindingExpression:Path=Exponent; DataItem='DefaultTickLabelViewModel' (HashCode=56110932); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'HasExponent' property not found on 'object' ''DefaultTickLabelViewModel' (HashCode=56110932)'. BindingExpression:Path=HasExponent; DataItem='DefaultTickLabelViewModel' (HashCode=56110932); target element is 'TextBlock' (Name='exponent'); target property is 'Visibility' (type 'Visibility')
System.Windows.Data Error: 40 : BindingExpression path error: 'Separator' property not found on 'object' ''DefaultTickLabelViewModel' (HashCode=9331561)'. BindingExpression:Path=Separator; DataItem='DefaultTickLabelViewModel' (HashCode=9331561); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')

my Line chart view code is here (I can’t able to make attachment)

<UserControl x:Class="Instron.Database.Presentation.DatabaseViews.Views.Visualization.LineChartView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:SciChart="clr-namespace:Abt.Controls.SciChart;assembly=Abt.Controls.SciChart.Wpf.3.0"
             xmlns:s="http://schemas.abtsoftware.co.uk/scichart" 
             mc:Ignorable="d" Width="Auto" Height="Auto"   
             xmlns:gbl="clr-namespace:Instron.Database.Presentation.DatabaseViews.Globalization">

    <UserControl.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="ContentControlDataTemplate.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </UserControl.Resources>

    <Grid >

        <TextBlock  FontSize="24" 
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    TextWrapping="Wrap"   
                    Foreground="DimGray"
                    Visibility="{Binding IsAxisVisible,Converter={StaticResource  NotBooleanToVisibilityConverter}}" >
                    <TextBlock.Text>
                        <gbl:TranslateExtension>
                            <gbl:TranslateExtension.DesignTimeText>Either X or Y axis do not contain sufficient data</gbl:TranslateExtension.DesignTimeText>
                            <gbl:TranslateExtension.StringId>010000123</gbl:TranslateExtension.StringId>
                        </gbl:TranslateExtension>
                    </TextBlock.Text>
        </TextBlock>

        <s:SciChartSurface x:Name="sciChart" ChartTitle="{Binding ChartName}" Style="{StaticResource SciChartSurfaceStyle}"   Visibility="{Binding IsLegendVisible,Converter={StaticResource  BoolToVisibilityConverter}}" 
            GridLinesPanelStyle="{StaticResource GridLinesPanelStyle }"  RenderableSeries="{Binding RenderableSeries}"  Margin="0,-5,0,-10"
               DataContextChanged="sciChart_DataContextChanged" Rendered="sciChart_Rendered"  ViewportManager="{Binding ViewportManager}">

            <s:SciChartSurface.ContextMenu>
                <ContextMenu >
                    <MenuItem  Command="{Binding SaveAsCommand}">
                        <MenuItem.Header>
                            <gbl:TranslateExtension>
                                <gbl:TranslateExtension.DesignTimeText>SaveAs</gbl:TranslateExtension.DesignTimeText>
                                <gbl:TranslateExtension.StringId>010000126</gbl:TranslateExtension.StringId>
                            </gbl:TranslateExtension>
                        </MenuItem.Header>
                    </MenuItem>
                    <MenuItem  Command="{Binding CopyCommand}">
                        <MenuItem.Header>
                            <gbl:TranslateExtension>
                                <gbl:TranslateExtension.DesignTimeText>Copy</gbl:TranslateExtension.DesignTimeText>
                                <gbl:TranslateExtension.StringId>010000127</gbl:TranslateExtension.StringId>
                            </gbl:TranslateExtension>
                        </MenuItem.Header>
                    </MenuItem>
                    <MenuItem  Command="{Binding PrintCommand}">
                        <MenuItem.Header>
                            <gbl:TranslateExtension>
                                <gbl:TranslateExtension.DesignTimeText>Print</gbl:TranslateExtension.DesignTimeText>
                                <gbl:TranslateExtension.StringId>010000128</gbl:TranslateExtension.StringId>
                            </gbl:TranslateExtension>
                        </MenuItem.Header>
                    </MenuItem>
                </ContextMenu>
            </s:SciChartSurface.ContextMenu>

            <s:SciChartSurface.XAxis>
                <s:NumericAxis  AutoTicks="False" GrowBy="0.05, 0.05"  
                                DrawMajorGridLines="{Binding IsLegendVisible}"  DrawMinorGridLines ="False"
                                AxisTitle="{Binding XAxisName}"  TitleStyle="{StaticResource AxisTitleStyle}" TickLabelStyle="{StaticResource AxisLabelStyle}" 
                                LabelProvider="{Binding XLabelFormatter}"
                                MajorDelta="1" MinorDelta="0.2"
                                 />
            </s:SciChartSurface.XAxis>

            <s:SciChartSurface.YAxis>
                <s:NumericAxis  GrowBy="1, 1" TickLabelStyle="{StaticResource AxisLabelStyle}" DrawMajorGridLines="{Binding IsLegendVisible}"
                                AxisAlignment="Left"  DrawMinorGridLines ="False"
                                AxisTitle="{Binding YAxisTitle}" 
                                TitleStyle="{StaticResource AxisTitleStyle}" />
            </s:SciChartSurface.YAxis>

            <!--  Adding the ZoomPanModifier gives SciChart the ability to pan on mouse-drag  -->
            <s:SciChartSurface.ChartModifier>
                <s:ModifierGroup>
                    <s:XAxisDragModifier ClipModeX="ClipAtExtents"/>
                    <s:YAxisDragModifier ClipToBounds="True" />
                    <s:RubberBandXyZoomModifier x:Name="rubberBandZoomModifier" IsEnabled="True" IsXAxisOnly="False" ZoomExtentsY="False" IsAnimated="True"/>
                    <s:ZoomExtentsModifier x:Name="zoomExtentsModifier" ClipToBounds="True" ExecuteOn="MouseDoubleClick"/>
                    <s:LegendModifier x:Name="legendModifier" GetLegendDataFor="AllVisibleSeries" />
                </s:ModifierGroup>
            </s:SciChartSurface.ChartModifier>

        <s:SciChartSurface.Annotations>
                <s:CustomAnnotation>
                    <s:CustomAnnotation.ContentTemplate>
                        <DataTemplate>
                            <s:SciChartLegend  x:Name="legendControl" Margin="2,2" Orientation="Horizontal"  Background="Transparent" BorderThickness="0" ScrollViewer.VerticalScrollBarVisibility="Auto"
                                Visibility="{Binding IsLegendVisible,Converter={StaticResource  BoolToVisibilityConverter}}" 
                                LegendData="{Binding LegendData, ElementName=legendModifier,Mode=OneWay}" >

                                <s:SciChartLegend.Resources>
                                    <SciChart:ColorToBrushConverter x:Key="ColorToBrushConverter"/>
                                </s:SciChartLegend.Resources>
                                <s:SciChartLegend.ItemTemplate>
                                    <DataTemplate DataType="SciChart:XyzSeriesInfo">
                                        <Grid>
                                            <Grid.ColumnDefinitions>
                                                <ColumnDefinition Width="Auto" />
                                                <ColumnDefinition Width="Auto" />
                                            </Grid.ColumnDefinitions>
                                           <Rectangle Grid.Column="0"
                                                VerticalAlignment="Center"
                                                Stretch="Fill"
                                                Width="10"

                                                StrokeThickness="10"
                                                Stroke="{Binding SeriesColor,
                                                Converter={StaticResource ColorToBrushConverter}}" />
                                            <TextBlock Grid.Column="1" Foreground="Black" 
                                                Margin="2,0,15,0"
                                                HorizontalAlignment="Center"
                                                Text="{Binding SeriesName}" FontWeight="Normal"/>
                                            </Grid>
                                    </DataTemplate>
                                </s:SciChartLegend.ItemTemplate>
                            </s:SciChartLegend>
                        </DataTemplate>
                    </s:CustomAnnotation.ContentTemplate>
                </s:CustomAnnotation>
            </s:SciChartSurface.Annotations>
        </s:SciChartSurface>
    </Grid>
</UserControl>
  • Raghupathy asked 4 years ago
  • last active 4 years ago
0 votes
6k views

I have a panel with two charts, that contains a OhlsDataSeries and theirs XAxis is DateTimeAxis. When it zooms i see a something strange:
strange stretch

My code:

<s:SciChartSurface SeriesSource="{Binding ChartSeriesViewModels}"
                   s:SciChartGroup.VerticalChartGroup="{Binding Parent.VerticalChartGroupId}"
                   ViewportManager="{Binding Parent.ViewportManager}">
    <s:SciChartSurface.ChartModifier>
        <s:ModifierGroup s:MouseManager.MouseEventGroup="23">
            <s:ZoomPanModifier ExecuteOn="MouseLeftButton"/>
            <s:MouseWheelZoomModifier />
            <s:CursorModifier ShowAxisLabels="True" UseInterpolation="False" UseLayoutRounding="True"  ReceiveHandledEvents="True"/>
            <s:YAxisDragModifier/>
            <s:XAxisDragModifier/>
            <s:ZoomExtentsModifier ExecuteOn="MouseDoubleClick"/>
        </s:ModifierGroup>
    </s:SciChartSurface.ChartModifier>

    <s:SciChartSurface.XAxis>
        <s:DateTimeAxis VisibleRange="{Binding Parent.VisibleRange, Mode=TwoWay}"
                        TextFormatting="hh:mm dd.MM.yyyy"
                        DrawMajorBands="True"
                        GrowBy="0.0, 0.1"/>
    </s:SciChartSurface.XAxis>

    <s:SciChartSurface.YAxis>
        <s:NumericAxis AutoRange="Always"
                       GrowBy="0.1, 0.1"/>
    </s:SciChartSurface.YAxis>

</s:SciChartSurface>

And second question:
Is there any way to make the cursor sticks to the points?

  • l1pton17 asked 4 years ago
  • last active 4 years ago
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