Search found 18 matches

by fischertc
Thu Apr 23, 2015 4:34 am
Forum: LightningChart Ultimate How-To's
Topic: Scrolling very large datasets
Replies: 6
Views: 11241

Re: Scrolling very large datasets

Thank you!
by fischertc
Fri Apr 17, 2015 3:12 am
Forum: LightningChart Ultimate How-To's
Topic: Scrolling very large datasets
Replies: 6
Views: 11241

Re: Scrolling very large datasets

I cannot get this to work. Reversing the X axis and calling AddPoints() with low X value, reversed data just added the reversed data to the high X value end of the points array which is what is does when the axis is not reversed. If you could post a bit of code, I am sure I am missing something here.
by fischertc
Thu Apr 16, 2015 10:33 am
Forum: LightningChart Ultimate How-To's
Topic: Scrolling very large datasets
Replies: 6
Views: 11241

Scrolling very large datasets

I am using WPF and 6.4.3 and point line series. I have some very large data files that cannot fit into memory (many GB) so I have implemented scrolling myself. I am up for suggestions on the fastest way to scroll when you are adding data to the beginning of the points array. The standard chart view ...
by fischertc
Sat Dec 06, 2014 7:56 am
Forum: LightningChart General Q&A
Topic: Older XP Laptops
Replies: 2
Views: 8431

Re: Older XP Laptops

I just got back to this issue and this did mostly resolve it. The colors are a bit washed out when you do it via CPU but it is definately better that not displaying anything.

Thank you
Tim
by fischertc
Wed Nov 19, 2014 3:17 am
Forum: LightningChart Bug Reports
Topic: ChartException
Replies: 3
Views: 8512

Re: ChartException

I sent Pasi some information on the error. It is a band issue that happens when a band.fill.bitmap object is not assigned.
by fischertc
Tue Nov 18, 2014 4:01 am
Forum: LightningChart Bug Reports
Topic: ChartException
Replies: 3
Views: 8512

ChartException

I am using 6.2.6 in WPF. I am getting the following error at EndUpdate time after loading the chart with data. I cannot tell from the error what object is null. Any help is appreciated. Arction.WPF.LightningChartUltimate.ChartException occurred HResult=-2146233088 Message=Unspecified error: Object r...
by fischertc
Wed Aug 27, 2014 10:22 am
Forum: LightningChart General Q&A
Topic: Older XP Laptops
Replies: 2
Views: 8431

Older XP Laptops

Hello, I have a customer that has been given a laptop from 2007 with XP and an Intel Q35 GPU. The intensity grid draws the grid but not the actual data; e.g. the axis ticks and axis grid lines, bands and annotations I have added show all show up but the intensity grid data is not plotted. I have a f...
by fischertc
Mon Aug 04, 2014 1:45 am
Forum: LightningChart Bug Reports
Topic: V6.0.11 -- Null Reference Exception
Replies: 1
Views: 4709

V6.0.11 -- Null Reference Exception

This is in code that was working in the last 5. version: > Arction.WPF.LightningChartUltimate.dll!Arction.WPF.LightningChartUltimate.LightningChartUltimate.SGC(Arction.WPF.LightningChartUltimate.Axes.AxisX A = {Arction.WPF.LightningChartUltimate.Axes.AxisX}, A.KD B = A, double C = 1.661, double F = ...
by fischertc
Thu Jul 24, 2014 6:03 am
Forum: LightningChart Bug Reports
Topic: Null Reference Exception
Replies: 1
Views: 3914

Re: Null Reference Exception

Seems to be randomly happening. This instance had a bit more info so I thought I would pass it on: Arction.WPF.LightningChartUltimate.ChartException occurred Message=Unspecified error: Object reference not set to an instance of an object.Stack trace: at Arction.WPF.LightningChartUltimate.LightningCh...
by fischertc
Thu Jul 24, 2014 5:45 am
Forum: LightningChart Bug Reports
Topic: Null Reference Exception
Replies: 1
Views: 3914

Null Reference Exception

Version 6.0.9, just converted an app from 5 to 6. This happened in EndUpdate in a Scroll event handler of a scrollbar that is scrolling a barseries based chart: System.NullReferenceException occurred Message=Object reference not set to an instance of an object. Source=Arction.WPF.LightningChartUltim...
by fischertc
Wed Apr 30, 2014 9:02 am
Forum: LightningChart Ultimate WPF
Topic: Exception
Replies: 3
Views: 4759

Re: Exception

I have reverted back to 5.4.1.

The Bitmap fill being shown on the edges of the chart appears on my host which is running a NVidia GeForce GTX650 and on the Intel HD host and on a host in our sister company in the UK.

The delete exception is only happening on the Intel HD.
by fischertc
Thu Apr 24, 2014 6:28 am
Forum: LightningChart Ultimate WPF
Topic: Exception
Replies: 3
Views: 4759

Exception

I am testing on an older i3 with an Intel HD onboard gpu :evil: The host only has 4gb of memory of which 1gb is assigned to the gpu. This is considered to be our lowest standard machine. It was running a little low on memory and I couldn't get past creating a set of barseries. The application would ...
by fischertc
Wed Apr 23, 2014 1:59 am
Forum: LightningChart Ultimate WPF
Topic: Wierd drawing issue
Replies: 6
Views: 11366

Re: Wierd drawing issue

I updated the scrollbar sample to add bars and a tiled bitmap. I copied the updated dlls you passed on to me into the toolset install of WPF, the GAC install and added the WPF dlls to the bin\debug directory on the sample application just to be sure. I still see bitmaps tiled on the the bars being d...
by fischertc
Thu Apr 17, 2014 2:28 am
Forum: LightningChart Ultimate WPF
Topic: Wierd drawing issue
Replies: 6
Views: 11366

Re: Wierd drawing issue

That didn't fix it. I renamed the current toolbox\assemblies\wpf directory files and copied the new WPF ones to it. I then rebuilt a debug version and verified the new WPF dll's are in the bin\debug directory. I then tested it and it is still broken. I then copied the dlls and overwrote those in a c...
by fischertc
Wed Apr 16, 2014 8:44 am
Forum: LightningChart Ultimate WPF
Topic: Wierd drawing issue
Replies: 6
Views: 11366

Wierd drawing issue

Hello, I am using version 5.4.1.4001 I have a chart with barseries assigned whose width I control. Most of the barseries objects have a solid fill color. When the data is reaches a specific value, I have to change the fill to a tiled bitmap. Whats happening is that sometimes the chart is drawing thi...
by fischertc
Sun Feb 16, 2014 4:04 am
Forum: LightningChart Ultimate WPF
Topic: Barchart's Bar width & ScrollBar Position
Replies: 7
Views: 13220

Re: Barchart's Bar width & ScrollBar Position

I had the same issue with a bar chart that the user can zoom into and out of. What I did was to get the bar values between min and max for every bar and use the ValueToCoord method to set them, like this: // Get data from series which will be displayed. Not that it adds/subtracts from max/min to get...
by fischertc
Fri Feb 14, 2014 2:24 am
Forum: LightningChart Ultimate WPF
Topic: Events Processing
Replies: 1
Views: 3863

Events Processing

A couple of issues: 1. I wanted to stop the mouse wheel from zooming an intensity grid series chart's X axis in or out past certain stops. For instance, I never wanted it below .001 or above .100 in xmax - xmin width to prevent the users from scrolling in/out too far. I tried to hook into the mousew...
by fischertc
Wed Feb 12, 2014 7:39 am
Forum: LightningChart Feature Requests
Topic: Band object ValuesChanged event request
Replies: 0
Views: 9097

Band object ValuesChanged event request

Very minor request... I have two bands on two separate charts that I want locked together so movement of one of them along an X axis performs the same amount of movement on the other. These two bands can be on charts with very different X value ranges, so I have to move them by the amount of change ...