DR 13-0014

[Francis Cave]

Dear all

The following concerns outstanding issues in DR 13-0014 relating to 
§19.5.28 cmd (@cmd) and §19.5.4 animMotion (@ptsTypes)

Following clarification from Microsoft experts and brief discussion in 
today's WG 4 meeting, I propose that the following text be added to the 
description of @cmd, immediately before the Example, in the attribute 
table in §19.5.28 cmd:

    _If the cmd attribute contains an empty string value or is omitted,
    no command is issued._

In today's discussion we also agreed that the value of @ptsTypes in 
§19.5.4 animMotion should be constrained to the pattern "[AFTSafts]*". I 
therefore propose that the description of this attribute be changed as 
follows:

    This attribute describes the point type of _each of _the points in
    the path attribute. The allowed values that are understood for the
    ptsTypes attribute are as follows:

    A = Auto, F = Corner, T = Straight, S = Smooth
    UPPERCASE = Straight Line follows point, lowercase = curve follows
    point.
    Thus, the total allowed set = {A,F,T,S,a,f,t,s}

    The possible values for this attribute are_strings_ defined by the
    W3C XML Schema string datatype_ST_AnimMotionPtsTypes simple
    type__(§20.1.10._9_)_.

    _[/Note:/ If the number of points in the path does not match the
    string-length of this attribute value, an implementation should
    either ignore excess path type characters or infer appropriate
    default path type characters according to the corresponding points
    in the path attribute. /end note/]_

I am unsure as to whether the Note should be in the attribute 
description table or in the new section §20.1.10.9 - see below.

I suggest that a new section §20.1.10.9 ST_AnimMotionPtsTypes is needed 
(preserving the alphabetical ordering of simple types defined in 
§20.1.10), and therefore subsequent subsections will need to be re-numbered.

    20.1.10.9 ST_AnimMotionPtsTypes (Animate Motion Point Types)

    This simple type describes the point types of the points in a path
    used to to specify the animated motion of a drawing element.

    This simple type's contents are a restriction of the W3C XML Schema
    string datatype. The string is restricted to match the W3C XML
    Schema data pattern "[AFTSafts]*", where the nth character in the
    string represents the point type of the nth point in the path that
    defines the animated motion, to be interpreted as follows:


Character Value
	Point Type Description

    A

	

    Auto, straight line follows point

    F

	

    Corner, straight line follows point

    T

	

    Straight, straight line follows point

    S

	

    Smooth, straight line follows point

    a

	

    Auto, curve follows point

    f

	

    Corner, curve follows point

    t

	

    Straight, curve follows point

    s

	

    Smooth, straight line follows point



Francis


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