Search found 51 matches

by ahe
Mon Feb 20, 2017 8:28 am
Forum: LightningChart Bug Reports
Topic: v7, ViewXY - AccessViolation in DirectX -> BlueScreen
Replies: 6
Views: 11020

Re: v7, ViewXY - AccessViolation in DirectX -> BlueScreen

I'm not sure if I understand your question, but the problem was only reproduceable in 32bit (caused by running out of memory). In 64bit, I could not get high enough memory usage to trigger the bug. So I cannot say if 64bit ever was affected or not. But after the fix by Arction, it should not occur a...
by ahe
Fri Sep 02, 2016 9:58 am
Forum: LightningChart Ultimate WinForms
Topic: AxisValueType.DateTime
Replies: 5
Views: 9169

Re: AxisValueType.DateTime

Thank you very much :-)
by ahe
Fri Sep 02, 2016 8:22 am
Forum: LightningChart Ultimate WinForms
Topic: AxisValueType.DateTime
Replies: 5
Views: 9169

Re: AxisValueType.DateTime

I am considering using the automatic since it covers 99% of my needs and I'd hate having to reinvent the wheel, but I'm really unhappy with the invalid negative dates on the axis. Is there an easier way to restrict the zoomable range other than to override the user input in the RangeChanged event? p...
by ahe
Wed Aug 24, 2016 11:32 am
Forum: LightningChart Ultimate WinForms
Topic: AxisValueType.DateTime
Replies: 5
Views: 9169

Re: AxisValueType.DateTime

Forgot to mention, it's version 7.1.2 Another screenshot of the date origin issue. 2016-08-24--Zeit.png By the way, this has only very low priority for me since I am currently still using AxisValueType.Number with the FormatValueLabel event to emulate .DateTime (for historic reasons). Might change i...
by ahe
Wed Aug 24, 2016 10:15 am
Forum: LightningChart Ultimate WinForms
Topic: AxisValueType.DateTime
Replies: 5
Views: 9169

AxisValueType.DateTime

Hello, I am not quite satisfied with the representation of some of the values on an absolute time axis (AxisValueType.DateTime), for example: "mm:ss" versus "hh:ss" - this should be hh:mm:ss to avoid ambiguity. (See ISO-8601) - could this please be changed? Or is this culture specific? The documenta...
by ahe
Fri Aug 12, 2016 3:33 pm
Forum: LightningChart Bug Reports
Topic: System.AccessViolationException
Replies: 17
Views: 30725

Re: System.AccessViolationException

I just tested 7.1.2 and I could not get it to crash so far. Which is nice :-)
by ahe
Tue Aug 09, 2016 3:29 pm
Forum: LightningChart Bug Reports
Topic: System.AccessViolationException
Replies: 17
Views: 30725

Re: System.AccessViolationException

Hallo spitzna,
I seem to have the same problem, but with an NVidia GT730 and using WinForms/ViewXY/IntensityGrid. StackTrace looks similar though (AccessViolation in Arction.DirectX.dll ie. SharpDX)
I'm already in contact with Pasi, but wanted to let you know that you're not alone ;-)
Gruß, Andreas
by ahe
Fri Aug 05, 2016 1:47 pm
Forum: LightningChart Bug Reports
Topic: IntensityGrid and logarithmic Scaling
Replies: 6
Views: 13591

Re: IntensityGrid and logarithmic Scaling

Reproduced_7_0_18.png
Reproduced_7_0_18.png (93.54 KiB) Viewed 13564 times
Occurs in 7.0.18, but not in 7.1.1 or 6.5.8. Sample source is attached.

I'll try updating to 7.1.1 hoping that it won't break anything.
by ahe
Tue Aug 02, 2016 2:26 pm
Forum: LightningChart Bug Reports
Topic: IntensityGrid and logarithmic Scaling
Replies: 6
Views: 13591

Re: IntensityGrid and logarithmic Scaling

OK, I found out the problem: I am using IntensityGridSeries.SetValuesData with data[][]. This only seems to be compatible with PixelRendering and not with Interpolation. When I changed it to IntensityGridSeries.Data with IntensityPoint[,], it works as expected: intensitygrid_logarithmic_v7_1_1_data....
by ahe
Tue Aug 02, 2016 2:08 pm
Forum: LightningChart Bug Reports
Topic: IntensityGrid and logarithmic Scaling
Replies: 6
Views: 13591

Re: IntensityGrid and logarithmic Scaling

[continued]

Sample code, tested with 6.5.8, 7.0.18 and 7.1.1 (change the references and use respective #define in Form1.cs)

It gets stranger: v7 does only render with PixelRendering=false and ScaleType.Linear. I can't figure out why it's working with v6 and in the v7.1-SDK's demo app though.
by ahe
Tue Aug 02, 2016 1:31 pm
Forum: LightningChart Bug Reports
Topic: IntensityGrid and logarithmic Scaling
Replies: 6
Views: 13591

IntensityGrid and logarithmic Scaling

There seems to be a new issue with logarithmic scaling with IntensityGridSeries, in our application it looks like the geometry of the grid gets distorted: application_logarithmic.png I created a minimal test application to reproduce it. While it is not as bad, I can still make out a few odd edges wh...
by ahe
Mon Jul 18, 2016 12:51 pm
Forum: LightningChart Bug Reports
Topic: v7, ViewXY - AccessViolation in DirectX -> BlueScreen
Replies: 6
Views: 11020

Re: v7, ViewXY - AccessViolation in DirectX -> BlueScreen

Re-tested with 7.0.18 and GeForce driver 364.72

I can confirm that it's fixed: it will no longer cause Blue-Screen-of-Death.

In 32bit it can still run out of memory, but at least it won't take the whole OS down, so thank you ;)
by ahe
Thu Jun 23, 2016 7:40 am
Forum: LightningChart Ultimate WPF
Topic: Width of the chart area
Replies: 1
Views: 3647

Re: Width of the chart area

Shouldn't it be something like this?

Code: Select all

LightningChartsUltimate lcu;
var margins = lcu.ViewXY.GetMarginsRect();
var chartAreaSize = new Size(lcu.Width - margins.Width, lcu.Height - margins.Height);
by ahe
Fri Jun 17, 2016 8:23 am
Forum: LightningChart Ultimate WinForms
Topic: PointLineSeries
Replies: 1
Views: 2895

PointLineSeries

In 6.5.8 and 7.0.18, I noticed that a PointLineSeries which I used as a guide line on top of an IntensityGridSeries would occasionally be drawn with an offset or vanish completely. I created a new minimal project to reproduce the problem: PointLineSeries.png _line = new PointLineSeries(); _line.Line...
by ahe
Thu Apr 21, 2016 3:35 pm
Forum: LightningChart Ultimate How-To's
Topic: Crosshair cursor for IntensityGridSeries
Replies: 2
Views: 5482

Re: Crosshair cursor for IntensityGridSeries

I'm sorry, I do not understand what you're proposing. The problem is, that I cannot move the crosshair in both directions at the same time. ConstantLine and LineSeriesCursor do not include the coordinate for the other axis in their respective MovedByMouse events. Thus the workaround with the transpa...
by ahe
Thu Apr 21, 2016 3:03 pm
Forum: LightningChart Ultimate How-To's
Topic: Crosshair cursor for IntensityGridSeries
Replies: 2
Views: 5482

Crosshair cursor for IntensityGridSeries

Similar to the "Spectrogram cross-section" demo, I implemented a wrapper for my application. But in addition, I'd like to be able to move both lines simultaneously if the mouse pointer started dragging near the intersection of the lines: Crosshair1.png At the moment, I am doing this with a transpare...
by ahe
Tue Mar 15, 2016 3:15 pm
Forum: LightningChart Bug Reports
Topic: v7, ViewXY - AccessViolation in DirectX -> BlueScreen
Replies: 6
Views: 11020

Re: v7, ViewXY - AccessViolation in DirectX -> BlueScreen

Hello Pasi, I'm sorry, but that is no acceptable solution. Some of our customers still use the 32bit versions of Windows 7. Admittedly they are not supposed to do heavy data processing on those tiny machines (2GB of RAM, single core), but it still should not fatally crash in any case. Maybe I did no...
by ahe
Mon Mar 14, 2016 4:09 pm
Forum: LightningChart Bug Reports
Topic: v7, ViewXY - AccessViolation in DirectX -> BlueScreen
Replies: 6
Views: 11020

v7, ViewXY - AccessViolation in DirectX -> BlueScreen

Version 7.0.1 WinForms, RendererDeviceType.AutoPreferD11 Compiled as AnyCPU, prefer 32bit Graphic Card NVideo GT 730, driver up to date (364.51), two monitors. While doing performance tests with 300 Series on a single axis-pair and ~2000 points each, my machine would blue screen when I expanded the ...
by ahe
Thu Mar 10, 2016 10:39 am
Forum: LightningChart Bug Reports
Topic: v7, Polar - extreme zoom failure
Replies: 1
Views: 4976

v7, Polar - extreme zoom failure

First of all: thanks for the new version, there are many new and appreciated features :-) While playing with the demo app, I found this odd behaviour with the ViewPolar. If you use the mouse wheel to zoom out, the amplitude axis can get separated from the rest of the diagram: Polar-zoom.png --Andreas
by ahe
Thu Feb 25, 2016 8:11 am
Forum: LightningChart Ultimate WinForms
Topic: ViewXY,IntensityGrid - Ranges
Replies: 3
Views: 4994

Re: ViewXY,IntensityGrid - Ranges

Thanks, that's what I was suspecting. I will mirror the data accordingly.

Could you please also add the information about this constraint to the Intelisense help (Arction.LightningChartUltimate.xml) and the documentation?
by ahe
Thu Feb 25, 2016 8:10 am
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - Axis.Title Z order
Replies: 7
Views: 17740

Re: ViewXY - Axis.Title Z order

Hmmm, this will only work for small borders as it will otherwise overwrite the axis and the ticks to the top and not just the numbers.

But I'll accept it as a workaround.
by ahe
Wed Feb 24, 2016 2:34 pm
Forum: LightningChart Bug Reports
Topic: ViewXY,IntensityGrid - logarithmic Y axis
Replies: 10
Views: 19747

Re: ViewXY,IntensityGrid - logarithmic Y axis

After one of our testers notified me, I was able to reproduce this odd behaviour with my sample application (AL_FontSize):
Bug_LogAxis_Drag.png
Bug_LogAxis_Drag.png (131.06 KiB) Viewed 19089 times
Same with 6.5.6 and 6.5.7

--Andreas
by ahe
Tue Feb 23, 2016 3:46 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewXY,IntensityGrid - Ranges
Replies: 3
Views: 4994

ViewXY,IntensityGrid - Ranges

I have a problem with an IntensityGrid. Some of the data provided to me was recorded "backwards" (decreasing x-axis), but it is shown mirrored. After a bit of debugging I found out that when setting up the IntensityGridSeries and during rendering, it seems that there are multiple places where the Ra...
by ahe
Mon Feb 22, 2016 3:42 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - Axis.Title Z order
Replies: 7
Views: 17740

Re: ViewXY - Axis.Title Z order

I found another issue. It seems the title text of the PointLineSeries is trimmed on the right side:
Bug_SeriesTitle.png
Bug_SeriesTitle.png (5.65 KiB) Viewed 17282 times

Code: Select all

PointLineSeries _unit;
_unit.Title.Text = "    [" + strAxisUnit + "]    ";
Tested in 6.5.6 and 6.5.7
by ahe
Wed Feb 03, 2016 2:51 pm
Forum: LightningChart Bug Reports
Topic: ViewXY,IntensityGrid - logarithmic Y axis
Replies: 10
Views: 19747

Re: ViewXY,IntensityGrid - logarithmic Y axis

I changed line 167 of Form1.cs in my sample code. That does make it better, but...

After each ResetZoom (via mouse), the axis is scaled correctly. Zooming or panning will cause a resize that has too much space:
logaxis_3.png
logaxis_3.png (45.41 KiB) Viewed 19393 times
(Lightning Charts 6.5.6)
by ahe
Wed Feb 03, 2016 1:49 pm
Forum: LightningChart Bug Reports
Topic: ViewXY,IntensityGrid - logarithmic Y axis
Replies: 10
Views: 19747

Re: ViewXY,IntensityGrid - logarithmic Y axis

There seems to be an issue with the combination of AutoAdjustMargins = true and LabelsNumberFormat = "g" logaxis_1.png logaxis_2.png It looks like the default number format is used to calculate the width of the axis instead of the provided one. By default, all values below 0.1 would be 0.0, and abov...
by ahe
Tue Jan 19, 2016 1:55 pm
Forum: LightningChart Ultimate WinForms
Topic: Mouse cursors and actions
Replies: 1
Views: 3580

Mouse cursors and actions

Is there a way to replace all internal mouse cursors graphics with custom ones? For example, we would like to change the panning cursor from the 4-way-hand to a grabbing-hand and the default cursor from arrow to normal hand. Also, since we need the right mouse button for a context menu, all mouse ac...
by ahe
Mon Jan 11, 2016 1:49 pm
Forum: LightningChart General Q&A
Topic: Minimum RAM Required
Replies: 3
Views: 13825

Re: Minimum RAM Required

(sorry for resurrecting this old thread) Hello Pasi, do you have rough estimates on the memory requirements for each Diagram- and Series-type? For example something like this (values are random): PolarDiagram < ~10 MB plus 1 MB per 1000 Points in a PointLineSeries at LineSize=1 PolarDiagram < ~11 MB...
by ahe
Wed Jan 06, 2016 4:22 pm
Forum: LightningChart Feature Requests
Topic: Font rendering with ClearType
Replies: 1
Views: 14688

Font rendering with ClearType

When combining LightningCharts with other controls, the font rendering stands out negatively as LC only uses grayscale antialiasing while the other controls use ClearType. Cleartype.png In another post I read that the FontsQuality is going to improve but without any further details. Thus, as a featu...
by ahe
Thu Dec 10, 2015 3:29 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - missing axis labels
Replies: 2
Views: 9241

ViewXY - missing axis labels

When the chart gets sufficiently small, the automatic placement of axis labels fails and neither labels nor ticks will be displayed: ViewXY-missing_axis_labels.png In this example, X range and Y range are -32768 to +32768. Similar results with +/-10000. ViewXY-missing_axis_labels2.png Similar, but p...
by ahe
Wed Dec 02, 2015 8:36 am
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - Axis.Title Z order
Replies: 7
Views: 17740

Re: ViewXY - Axis.Title Z order

Thanks, this works.
by ahe
Mon Nov 30, 2015 1:34 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - GetMarginsRectangle
Replies: 4
Views: 7266

Re: ViewXY - GetMarginsRectangle

Go to https://www.chartcontrols.com/, click "login", fill out below "Licensed user login" with your credentials, click "SDK", scroll down to "Assemblies", e.g. "v.6.5.5,assemblies,zip"

Hope that helps, Andreas
by ahe
Fri Nov 27, 2015 10:51 am
Forum: LightningChart Ultimate WinForms
Topic: ViewPolar - linesize and memory usage
Replies: 1
Views: 4133

ViewPolar - linesize and memory usage

In our application the user can set the line size of each diagram at runtime. We noticed that setting linesizes > 1 resulted in much higher memory usage. I added my sample code which creates a polar diagram with one point line series with 150.000 points and alternates the linesize between 1 and 2 ev...
by ahe
Thu Nov 26, 2015 10:58 am
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - GetMarginsRectangle
Replies: 4
Views: 7266

Re: ViewXY - GetMarginsRectangle

Thank you, this definitely improves the behaviour :-)
But you are right, those are some confusingly named functions.


May I anyway ask for a CalculateMarginRect() as feature request for a future version which does the calculation independently from the rendering?
by ahe
Thu Nov 26, 2015 10:42 am
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - Axis.Title Z order
Replies: 7
Views: 17740

Re: ViewXY - Axis.Title Z order

Annotations seem to be rendered behind the axis aswell:
AxisTitleClipping_Annotation.png
AxisTitleClipping_Annotation.png (37.56 KiB) Viewed 17734 times
Am I missing a property? Or did I misunderstand you?
by ahe
Wed Nov 25, 2015 3:48 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - Axis.Title Z order
Replies: 7
Views: 17740

ViewXY - Axis.Title Z order

The axis' labels Title and Units seem to be placed behind the axis: AxisTitleClipping.png axis.Units.Text = "[Units]"; axis.Units.Fill.Color = Color.Red; // Red for demonstration, White for production axis.Units.Fill.GradientColor = Color.Red; axis.Units.Fill.GradientFill = GradientFill.Solid; axis....
by ahe
Tue Nov 24, 2015 12:38 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewXY - GetMarginsRectangle
Replies: 4
Views: 7266

ViewXY - GetMarginsRectangle

In order to align the axes of a LightningCharts ViewXY with charts from a different vendor, I am using the following code to determine the minium padding of the chart: chart.BeginUpdate(); view.AxisLayout.AutoAdjustMargins = true; chart.EndUpdate(); var rect = GetMarginRectangle() chart.BeginUpdate(...
by ahe
Fri Nov 06, 2015 12:59 pm
Forum: LightningChart Bug Reports
Topic: ViewXY,IntensityGrid - logarithmic Y axis
Replies: 10
Views: 19747

Re: ViewXY,IntensityGrid - logarithmic Y axis

Confirm, disabling PixelRendering works. Thank you.

Could you please add this kind of information to the documentation?
by ahe
Thu Nov 05, 2015 2:02 pm
Forum: LightningChart Ultimate How-To's
Topic: ViewPolar: amplitude axis scale
Replies: 3
Views: 8483

Re: ViewPolar: amplitude axis scale

CustomAxisLabels in combination with adjusting the values on axis_RangeChanged (rounding to the next "nice" value) seems to result in acceptable behaviour.

Still, I would prefer the amplitude axis to work like the ViewXY axis...
by ahe
Thu Nov 05, 2015 9:43 am
Forum: LightningChart Bug Reports
Topic: ViewXY,IntensityGrid - logarithmic Y axis
Replies: 10
Views: 19747

Re: ViewXY,IntensityGrid - logarithmic Y axis

View3D seems to work correctly, I will try to see how much time it would take me to switch over.
by ahe
Thu Nov 05, 2015 9:27 am
Forum: LightningChart Bug Reports
Topic: ViewXY,IntensityGrid - logarithmic Y axis
Replies: 10
Views: 19747

ViewXY,IntensityGrid - logarithmic Y axis

Setting m_chart.ViewXY.YAxes[0].ScaleType to logarithmic has no effect on IntensityGrids.

Linear scaling:
2_Linear.png
2_Linear.png (92.93 KiB) Viewed 19747 times
Logarithmic scaling:
2_Logarithmic.png
2_Logarithmic.png (96.61 KiB) Viewed 19747 times
Expected: most of the image to be blue, few coloured lines at the top
by ahe
Wed Nov 04, 2015 4:51 pm
Forum: LightningChart Ultimate How-To's
Topic: ViewPolar: amplitude axis scale
Replies: 3
Views: 8483

Re: ViewPolar: amplitude axis scale

Almost forgot... Labels can overlap:
Bug_4.png
Bug_4.png (55.88 KiB) Viewed 8481 times
by ahe
Wed Nov 04, 2015 4:47 pm
Forum: LightningChart Ultimate How-To's
Topic: ViewPolar: amplitude axis scale
Replies: 3
Views: 8483

ViewPolar: amplitude axis scale

The values on the scale do not represent the actual values for that position. Example using the demo application: Scroll to amplitude 0 to 5 and mark a section from 1 to 2. Bug_1.png Place the mouse cursor on the amplitude axis and use the mouse wheel. The selection will move accordingly, but the di...
by ahe
Thu Oct 29, 2015 2:38 pm
Forum: LightningChart Ultimate WPF
Topic: Logarithmic Intensity Scale
Replies: 4
Views: 9124

Re: Logarithmic Intensity Scale

Pasi, could you please add a notice of the missing features to the documentation? ("Known issues")

Also, setting LogBase to values less than 1.0 seems to hang the application. There is no information on the valid range in the documentation as well.
by ahe
Thu Oct 29, 2015 8:31 am
Forum: LightningChart Ultimate WPF
Topic: Create New Y Axis
Replies: 1
Views: 3834

Re: Create New Y Axis

Do you mean the "ScaleNibs"? The small handles at the ends of the axis?

Code: Select all

axis2.ScaleNibs.Color = yaxis.ScaleNibs.Color;
But I agree, for your use case a Clone() function or a copy constructor would be useful. I solved this by manually creating all axes (axisses?) to make sure they look the same.
by ahe
Wed Oct 14, 2015 9:57 am
Forum: LightningChart Ultimate WinForms
Topic: ViewXY,IntensityGrid - PixelRendering
Replies: 2
Views: 5816

ViewXY,IntensityGrid - PixelRendering

I found some issues with the IntensityGrid. [...] With version 6.5.4 (2015.10.2.4001], there are some cases when the palette behaves differently depending on PixelRendering. If turned ON , values that are greater than the Maximum (red) will be displayed using the Minimum color (purple): http://i.img...
by ahe
Wed Sep 02, 2015 4:39 pm
Forum: LightningChart Ultimate How-To's
Topic: Navigation Cube and Coordinate System
Replies: 4
Views: 12058

Re: Navigation Cube and Coordinate System

Since I recognized the cube in the screenshot... It is part of the Helix Toolkit, called ViewCubeVisual3D.
by ahe
Wed Sep 02, 2015 4:24 pm
Forum: LightningChart Feature Requests
Topic: ViewPolar: Increase dragable amplitude axis area size
Replies: 0
Views: 8881

ViewPolar: Increase dragable amplitude axis area size

Compared to the outer ring (used for rotation), the area on the amplitude axis which allows panning and zooming is quite small.

I am wondering if extending the area to the ticks and labels would make it more useable and constistent to the rotation ring.

Image
by ahe
Mon Aug 31, 2015 3:05 pm
Forum: LightningChart Ultimate WinForms
Topic: ViewPolar: Clipping at AngularAxis?
Replies: 3
Views: 5085

Re: ViewPolar: Clipping at AngularAxis?

On the topic of clipping... Even though the current behaviour is correct, people seem to be confused when points go beyond the minimum and to the reverse side of the axis. Example (same data as the screenshots above): http://i.imgur.com/c5YeJpP.png This is difficult to interpret... Could you maybe p...
by ahe
Wed Aug 12, 2015 11:56 am
Forum: LightningChart Ultimate WinForms
Topic: ViewPolar: Clipping at AngularAxis?
Replies: 3
Views: 5085

ViewPolar: Clipping at AngularAxis?

Currently, the Series is displayed on top of everything:
Image

Is there a way to clip the series to the angular axis or the diagram area?

For example I would want it to look like this "photoshopped" image:
Image
by ahe
Wed Aug 12, 2015 7:52 am
Forum: LightningChart Ultimate WinForms
Topic: ViewPolar: !KeepDivCountOnRangeChange, Zoom
Replies: 1
Views: 4511

ViewPolar: !KeepDivCountOnRangeChange, Zoom

Hello, I would like to report a possible bug. I encountered a freeze of my WinForms programme when disabling KeepDivCountOnRangeChange and zooming into the axis by mouse. When the MajorDivCount reaches zero, the programme freezes. Steps to reproduce - new Project, add a new LightningChartUltimate - ...