Setting up trend-reporting in TeamCity?

Is there documentation someplace on how to first generate the trend data, then get TeamCity to publish this as a graph over time via its custom-charts feature?

If so, please point me at it; if not, I'll blog it once I figure it out...

RE: Setting up trend-reporting in TeamCity?

we have a document describing how to get trends set up here:

http://docs.ncover.com/how-to/tracking-code-coverage-trends/

but we have not experimented with getting the trends to show via Teamcitys custom-charts feature. However, we did release 3.1 yesterday which has support for a trend report similiar to the other summary reports we supported before. We're still working on a blog post and a help article to describe the new trend report and the options available, so the best documentation is in the NCover.Reporting help text, which I've copied below for convience.

Trends - Create a report showing the trend of a coverage file and its trends - Required params: TrendCoverageMetric: SymbolCoverage, BranchCoverage, MethodCoverage, LineCoverage, CyclomaticComplexity Level: Assembly, Namespace, Class, Method

Example:

ncover.reporting.exe coverage.xml //or Trends:Html:trend_report.html params ( TrendCoverageMetric=SymbolCoverage, Level=Namespace )