Search found 9 matches

by Charles Cruden
Mon Jul 12, 2010 6:54 pm
Forum: .NET
Topic: Axis labels with consistent decimals
Replies: 1
Views: 3604

Axis labels with consistent decimals

Is there a way to get an axis to display tick labels with a consistent number of decimal places without having to examine the data range of the data and guess at what the code might do to lay things out? We're plotting values on custom Axes with Automatic set to true. The problem we have currently i...
by Charles Cruden
Thu Feb 11, 2010 7:12 pm
Forum: .NET
Topic: FastLine skipping null data points
Replies: 2
Views: 4637

Re: FastLine skipping null data points

Yes, it looks like this problem is corrected by moving to the most recent version of TeeChart.
by Charles Cruden
Wed Feb 10, 2010 6:20 pm
Forum: .NET
Topic: FastLine skipping null data points
Replies: 2
Views: 4637

FastLine skipping null data points

Using TeeChart.WPF.dll 4.0.2009.35592, we are trending data which occasionally has null points which we want to represent by blanks on the drawn line. We're finding that if we use FastLine (in an attempt to improve rendering performance), these null points are occasionally skipped: the rendered seri...
by Charles Cruden
Thu Jan 28, 2010 6:42 pm
Forum: .NET
Topic: ColorLine performance
Replies: 6
Views: 12454

Re: ColorLine performance

Yes, the CursorTool suffers from the same problem. I did notice that in the WPF version of TeeChart at least, FastCursor is not an implemented property on CursorTool, so it more or less guarantees that a redraw will occur each time the cursor is moved. Is there any chance that will be changed soon? ...
by Charles Cruden
Wed Jan 27, 2010 9:51 pm
Forum: .NET
Topic: ColorLine performance
Replies: 6
Views: 12454

Re: ColorLine performance

Just for reference, we've gone through the suggestions in the real-time charting performance article on the site: we are using FastLine with DrawAllPoints set to false (although the number of points is about the same as the width of the chart); there is no FastPen property on the FastLine in the .NE...
by Charles Cruden
Wed Jan 27, 2010 9:15 pm
Forum: .NET
Topic: ColorLine performance
Replies: 6
Views: 12454

ColorLine performance

Using TeeChart.WPF.dll 4.00.2009.35592, we are trying to build a "cursor" type object into the chart that will let a user grab a line perpendicular to the X axis that crosses the entire trend, move it to wherever they think it is of interest and determine the value of all the series in the trend at ...
by Charles Cruden
Thu Jan 14, 2010 8:58 pm
Forum: .NET
Topic: ColorLines not cleared from chart
Replies: 2
Views: 4635

ColorLines not cleared from chart

Using Teechart.WPF.dll 4.0.2009.35592, we are using ColorLines to act as cursors for our chart, letting the user know what value a particular series is at a given point. They work fairly well for the most part, but we are running into a problem when the user clears the chart. We do this by removing ...
by Charles Cruden
Tue Jan 12, 2010 8:30 pm
Forum: .NET
Topic: Legend.Clicked not aware legend items have been cleared?
Replies: 1
Views: 3666

Legend.Clicked not aware legend items have been cleared?

Using TeeChart.WPF.dll version 4.0.2009.35592, we setup some code that watches where a user's mouse goes and allows them to click on items in the legend to perform actions on the series in the chart. We include highlighting of the items in the legend to indicate which item they're about to click on,...
by Charles Cruden
Thu Jan 07, 2010 6:54 pm
Forum: .NET
Topic: Axis title clicked?
Replies: 3
Views: 5877

Re: Axis title clicked?

I'm trying to accomplish the same thing using TChart .NET 4.0.2009.35592. I don't see a ClickAxisTitle event for TChart and the ClickAxis / ClickTitle don't appear to isolate axis titles. I hoped maybe I'd be able to intercept the mouse click events and work out whether they were over an axis title ...