Changes between Initial Version and Version 1 of Ticket #10898


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Timestamp:
Mar 24, 2010, 9:02:07 PM (10 years ago)
Author:
Adam Peller
Comment:

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  • Ticket #10898 – Description

    initial v1  
    11Currently, in a line chart, when a null appears in the data series the line drops to zero at that point and then resumes. A null generally means that data is "missing", rather than zero. The interpretation of nulls as zero was probably introduced with bars and columns, and the effect on lines not fully considered. It would be better if a null in the data series caused a "gap" in the line, rather than being treated as zero. This feature requires splitting the data series into "dense" (null-free) ranges, and rendering each as a distinct gfx shape, taking care that the same line plot attributes are applied to multiple ranges from the same series (eg sequential colour allocation). Also, the automatic ("natural") adjustment of axes should ignore nulls.
    22
    3 Test: a test is included which illustrates both this item and #10987 (test_lines.html)
     3Test: a test is included which illustrates both this item and #10897 (test_lines.html)