Search found 4 matches

by TMac
Fri Mar 09, 2007 12:55 pm
Forum: .NET
Topic: RealTime Functions
Replies: 1
Views: 3318

RealTime Functions

I am using TChart in a RealTime financial chart that is updating the data constantly. I am working on putting Moving Averages on the Chart. When I update the data, is there any built-in way to do it without recalculating the entire Moving Average. I am only modifying or adding to the last datapoint,...
by TMac
Thu Feb 22, 2007 12:44 pm
Forum: .NET
Topic: Invalidating an area in TChart for .NET
Replies: 3
Views: 5062

I am using a TChart for RealTime Financial charting. It updates the latest point on the Chart constantly. When using the built-in Zoom and Cursor controls they don't work well. The speed is great, but I'm having a lot of trouble with the ReversibleLine and ReversibleRectangles that they use. Every t...
by TMac
Wed Feb 21, 2007 11:23 pm
Forum: .NET
Topic: Invalidating an area in TChart for .NET
Replies: 3
Views: 5062

Invalidating an area in TChart for .NET

Is there a way that I can redraw only a small area of the TChart in the .NET version 2. If I call TChart.Invalidate(New Rectangle(x1, y1, width, height)), it seems like it redraws the entire chart instead of just the small piece that I have invalidated. Is that correct? Is there any way that I can g...
by TMac
Mon Feb 19, 2007 9:10 pm
Forum: .NET
Topic: Drawing Problems (Cursor, ZoomTool, etc.)
Replies: 2
Views: 5460

Drawing Problems (Cursor, ZoomTool, etc.)

I am having problems with some of the tools that use the ReversibleLine and ReversibleRectangles such as the ZoomTool and the FastCursor tool. My chart constantly refreshes with real-time data coming in, and when it refreshes the chart, artifacts remain on the screen if the user is either zooming or...