[birt-dev] CheckIn: #171534, 171535 - Area chart bug fixes in 2.1.3 bran

["Yulin Wang" <yulin.wang@xxxxxxxxxxx>]

- Summary: 

Area chart bug fixes in 2.1.3 branch

 - Bugzilla Bug (s) Resolved:

#171534, 171535

 - Description: 
Added following support in Area chart: gradient color, better stacked/overlay behavior when handling null value, overlaying the line of previous series and other some minor 2.2 fixes.
Checked into 2.1.3 branch. HEAD version has included these fixes.

 

- Code Reviewer: N/A

- Tests Description:  Manual test.

 

- Notes to Build Team: N/A

 

- Notes to Developers: N/A

 

- Notes to QA:  N/A

 

- Notes to Documentation:  N/A

 

- Files Edited:

"/org.eclipse.birt.chart.engine.extension/src/org/eclipse/birt/chart/render/Area.java"
"/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/DeferredCache.java"

- Files Added:

 

- Files Deleted