Search found 21 matches

by MTW
Tue Jun 08, 2010 3:31 pm
Forum: VCL
Topic: Speed up Live Plotting?
Replies: 34
Views: 9537

Re: Speed up Live Plotting?

Thank you for your suggestions of reducing the number of points plotted. I am actually doing that myself in the application, but when the user selects the highest sampling rate, I can't do any further data reduction. If you had a way to add XValues and YValues (arrays) to existing data, that should ...
by MTW
Thu Jun 03, 2010 4:20 pm
Forum: VCL
Topic: Speed up Live Plotting?
Replies: 34
Views: 9537

Re: Speed up Live Plotting?

I sent a simple demo through the upload page. To monitor the CPU usage, I ran Windows Task Manager and monitored the CPU usage of the process. When the program first starts running, the CPU usage stays about 12%. As data is added, the CPU usage slowly increases and reaches a steady 30% when the max ...
by MTW
Wed Jun 02, 2010 10:22 am
Forum: VCL
Topic: Speed up Live Plotting?
Replies: 34
Views: 9537

Re: Speed up Live Plotting?

Thank you for your response. I have read the article on real time plotting and have already implemented the features mentioned. The problem is that I am constantly plotting the same amount of data, adding the data to the graph every 200 msec and deleting data when the 60,000 point per series is exce...
by MTW
Tue Jun 01, 2010 3:35 pm
Forum: VCL
Topic: Speed up Live Plotting?
Replies: 34
Views: 9537

Re: Speed up Live Plotting?

I am running the VCL Build 8.06.60902 with C++ Builder 2010 and am experiencing the same problem of CPU usage going up to 75% when a large amount of data is added to a real time display. I am deleting data, but am allowing up to 60,000 points to be displayed per data element. Has anything further be...
by MTW
Fri May 28, 2010 6:36 pm
Forum: VCL
Topic: Adding arrays to TLineSeries BCB 6.0
Replies: 8
Views: 3497

Re: Adding arrays to TLineSeries BCB 6.0

I am now using TeeChart VCL 8.06 in both BCB 6.0 and CodeGear 2010. Your description of using an array for adding both X and Y values allows me to code it and use the functions as described. However, I am now using it for real time graphics, where I want to add a set of data to a chart (that has exi...
by MTW
Mon Jan 25, 2010 8:54 pm
Forum: VCL
Topic: Dragging the graph results in non-existent data displayed
Replies: 4
Views: 1496

Re: Dragging the graph results in non-existent data displayed

Thank you.

The problem disappeared with 8.06.

M Weingarden
by MTW
Mon Jan 25, 2010 7:03 pm
Forum: VCL
Topic: Dragging the graph results in non-existent data displayed
Replies: 4
Views: 1496

Re: Dragging the graph results in non-existent data displayed

I am using version VCL Pro 8.04 under BCB 6.0. When I build a simple project, I cannot duplicate the problem. The series is a TLineSeries.

Thanks
M Weingarden
by MTW
Mon Jan 25, 2010 4:42 pm
Forum: VCL
Topic: Dragging the graph results in non-existent data displayed
Replies: 4
Views: 1496

Dragging the graph results in non-existent data displayed

I have a graph: Graph1.PNG Graph2.PNG Graph3.PNG The first graph shows the data at 0 time to be about 0. As I drag the data to the left, a negative offset for the first point is introduced. As I drag it a little further to the left, the offset changes to a positive offset for the first point. This p...
by MTW
Thu Oct 01, 2009 4:03 pm
Forum: VCL
Topic: Real time charting - changing axis maximum
Replies: 1
Views: 739

Real time charting - changing axis maximum

I am charting data in real time - scrolling as per your example of charting data in real time. My data can range from 0-100%. I would like the axis->maximum not to be less than 10%, otherwise, I would like it to scale automatically. I am adding data to the chart 5 times per second. I can set the axi...
by MTW
Mon Aug 31, 2009 4:27 pm
Forum: VCL
Topic: compile error after upgrade v.8.05
Replies: 57
Views: 13286

Re: compile error after upgrade v.8.05

Thank you for your assistance.

I downloaded it, again, and had no problem installing the update.

The project compiled/linked without error.

Thanks again.

M Weingarden
by MTW
Thu Aug 27, 2009 4:29 pm
Forum: VCL
Topic: compile error after upgrade v.8.05
Replies: 57
Views: 13286

Re: compile error after upgrade v.8.05

I was sent a link to version to try out (I do not have the source for Teechart). I downloaded the version for RAD Studio 2009. When I attempted to install it, it would not accept my license/password.
by MTW
Mon Jul 13, 2009 3:44 pm
Forum: VCL
Topic: compile error after upgrade v.8.05
Replies: 57
Views: 13286

Re: compile error after upgrade v.8.05

Could you please explain what you mean by source code license? I have a license for TeeChart Pro 8.0 VCL. I do not see anything on the Steema order page for 2 different versions with source/without source.

Thank you.
by MTW
Mon Jul 13, 2009 3:25 pm
Forum: VCL
Topic: compile error after upgrade v.8.05
Replies: 57
Views: 13286

Re: compile error after upgrade v.8.05

Can you please send me the update as well?

Thank you
M Weingarden
by MTW
Mon Dec 01, 2008 9:15 pm
Forum: VCL
Topic: Custom Axis Labels - setting font color
Replies: 1
Views: 717

Custom Axis Labels - setting font color

In BCB, how do I set the font color of custom labels added with
CustomAxis->Items->Add(NN,"XXX")?

Thank you for your assistance.
by MTW
Mon Nov 24, 2008 8:12 pm
Forum: VCL
Topic: Adding 2nd Y-axis and shifting chart w no change in size
Replies: 1
Views: 797

Adding 2nd Y-axis and shifting chart w no change in size

I have defined a chart of a fixed size. I would like to be able to add a custom vertical axis to the left of the graph. I want the graph (bottom axis) length to remain unchanged. I can make the chart wider, but I do not want the bottom axis to change with the new chart size. How can I do this? Thank...