2.1.1212 Part 1 Section 20.1.2.2.24, ln (Outline)

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a.   The standard does not specify a default value for the algn attribute.

Office uses a default value of ctr for the algn attribute.

b.   The standard states that sq is the default value for the cap attribute.

Office uses flat as the default value for cap.

c.   The standard allows for the specifying of the tailEnd child element, headEnd child element and cap attribute within the ln element.

Office does not use the tailEnd child element, headEnd child element and cap attribute when the parent element is the rPr element.

d.   The standard does not specify conditions under which this element might be superseded.

In Microsoft Office 2016, when this element is omitted from the spPr element nested inside a dataPoint element in a CT_ChartStyle ([MS-ODRAWXML] Section 2.8.3.1), and when the dataPoint CT_StyleEntry is formatting a CT_Series ([MS-ODRAWXML] Section 2.24.3.75) with at least one complex formatting property (such as pattern fill, gradient fill, glow, shadow, 3D effect, or line dashing), and when the CT_ChartStyle is used to style a chart in a part using the relationship type of “http://schemas.microsoft.com/office/drawing/2014/chartex” ([MS-ODRAWXML] Section 2.24), the ln element under the spPr element in dataPointLine is used in place of this element.

e.   The standard states that if the w (Line Width) attribute is omitted, then a value of 0 is assumed.

The interpretation of the line width is further determined by the line’s fill properties (EG_LineFillProperties). Unless the line fill type is <noFill>, a line width value of 0 or omission of the w attribute indicates that a resolution-dependent line thickness of 1 device unit should be drawn, where a device unit is a pixel on a screen, or a single dot width on a printer. For line fill type <noFill>, the width value is ignored and no line should be drawn.

f.   The standard does not specify what happens if the fill property EG_LineFillProperties are omitted from the Outline properties.

If line fill property EG_LineFillProperties is not provided, Office assumes the line fill to be <solidFill>.