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Bug 147 - [TV52012998] 3. When there is a flat region in the Contour plot, the flat sections...
Summary: [TV52012998] 3. When there is a flat region in the Contour plot, the flat sec...
Status: RESOLVED FIXED
Alias: None
Product: VCL TeeChart
Classification: Unclassified
Component: Series (show other bugs)
Version: unspecified
Hardware: All All
: Normal major
Target Milestone: ---
Assignee: Steema Issue Manager
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-04-23 11:58 EDT by narcís calvet
Modified: 2013-12-03 07:26 EST (History)
1 user (show)

See Also:
Chart Series: ---
Delphi / C++ Builder RAD IDE Version:

Attachments
Contour filling problem (triangles) (3.53 KB, application/octet-stream)
2013-12-03 03:18 EST, david berneda 		Details
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Description narcís calvet 2013-11-20 10:00:14 EST 
3. When there is a flat region in the Contour plot, the flat sections do not get painted in when the contours are filled. Applies to IsoSurface as well.

To reproduce, open the file "contours_not_filled_in_2D.tee" and enable the Filled property for the contour plot. There will be a 3x3 hole in the middle of the graph. To reproduce with IsoSurface, change the series type to IsoSurface.  [created:2008-04-23T10:58:46.000+01:00 reported by:narcis@steema.com reported in version:8.01 (TeeChart VCL)]
Comment 1 david berneda 2013-12-03 03:17:10 EST 
Cannot reproduce the "flat sections dont get filled" problem, but there's a wrong painting in the attached *.tee example. 

(Some cells are half-painted as triangles instead of filling the cell completely)

Also there is a slight difference between Contour isolines (level lines) and the filling polygons, Contour lines have sometimes an extra interpolated point.
Comment 2 david berneda 2013-12-03 03:18:01 EST 
Created attachment 39 [details]
Contour filling problem (triangles)
Comment 3 david berneda 2013-12-03 07:26:56 EST 
Fixed the problem of half-filled cells (triangles).

Pending to improve the "matching" between contour lines and filling polygons, this issue can be closed.