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109 lines
4.7 KiB
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109 lines
4.7 KiB
Plaintext
This is the NEWS file for PHPlot, with release documentation.
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The project home page is http://sourceforge.net/projects/phplot/
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-----------------------------------------------------------------------------
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2006-11-13 Released 5.0rc3
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Overview:
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This is an interim release. It has been a long time since the previous
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release 5.0rc2, and there have been a lot of changes. There are still more
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changes likely to go in before we have "5.0", but there are enough for now.
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The PHPlot Reference Manual has also been released, and is available as a
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separate download from Sourceforge. PHPlot users and developers are
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strongly encouraged to read the manual.
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This release does not include the "doc/" and "examples/" directories of
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previous releases. The Reference Manual contains more complete and
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up-to-date information and examples, and I am unable to maintain the doc/
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and examples/ files while also maintaining the Reference Manual. If you
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need those files, they can be accessed with the Sourceforge web CVS
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browser.
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New Features:
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The emphasis for this release is bug fixing, so there are few new features.
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+ You can now suppress lines or points on individual plots in a linepoints
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graph. This feature was added because I needed a graph with several
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linepoints lines, but also with a solid line showing an "80% goal".
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Use SetPointShapes with the value 'none' in the array to suppress the
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point markers for that plot (and only draw the line).
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Use SetLineStyles with the value 'none' in the array to suppress the
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line for that plot (and only draw the point markers).
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[Bug # 1594458]
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+ Bar charts can have data labels above the bar with the value. Turn
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these on with SetYDataLabelPos('plotin'). This is somewhat experimental,
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since there isn't a lot of room for labels on top of the bars and you
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may find the results are not useful.
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Visible Changes:
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Here are the more significant changes in this release. These are changes
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which may affect existing scripts and output from PHPlot. See the
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ChangeLog file for information about all changes and bug fixes.
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+ A bug fix on bar chart bar borders results in black borders around the
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bars if shading is turned off. The border was previously covered up,
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but was supposed to be there. If you need borderless, unshaded bars,
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you need to use SetDataBorderColors to make the borders the same colors
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as the bars. [Bug # 1096197]
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+ TrueType font pathname handling was fixed. You no longer need to use
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SetUseTTF(True). You can either use full paths to the font files with
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SetDefaultTTFont() and SetFont(), or you can call SetTTFPath() to point
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to a directory of font files, and then use simple font filenames without
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paths in SetDefaultTTFont() and SetFont().
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[Bug # 1144644 plus several others]
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+ There have been several fixes regarding automatically calculated ranges
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and scales. The result is that you may see less extra space and fewer
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tick marks in some cases.
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+ A fix was made to bar and stackedbar graph bar widths in order to get
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the X axis labels to properly center. As part of the fix, the bar widths
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now match between the two graph types. (Before this fix, the bars were
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narrower in bar graphs compared to the same data plotted as a stacked
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bar.) As a result, bar graph bars will now be drawn with wider bars, and
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stackedbar graph bars will be narrower. You can adjust this with the new
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class variable bar_extra_space. [Bug # 1437912]
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+ Dot shapes and sizes were off by 1 or 2 slots in the array of shapes or
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sizes. After the fix, you may get different dot shapes or sizes per
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plot line. [Bug # 1096194]
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Testing:
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Since its output is visual (graphics), and it has so many interconnected
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modes and options, PHPlot is difficult to test. But at least we are now
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trying. I have a collection of PHPlot scripts (currently about 60) and a
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script to run through them. The script automatically checks that:
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1) Nothing was written to the standard error stream;
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2) An image file of size greater than 0 was written;
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3) Neither the test script nor PHPlot did exit(). This catches cases
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where PHPlot aborts with DrawError().
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The automated test is an easy way to check for serious regression, but you
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really need to inspect the output files to validate PHPlot. This takes a
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little time, and it is easy to overlook problems.
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The real issue is test coverage. Just as we can be sure that future
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PHPlot releases will pass the test collection, we can also be sure that
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future bug reports will be written against untested cases.
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--------------------
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2006-11-08 PHPlot on Sourceforge has a new maintainer: lbayuk
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--------------------
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2004-10-24 Released 5.0rc2
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--------------------
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