AbsoluteDashing

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`AbsoluteDashing`

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AbsoluteDashing[{d₁,d₂,…}]

is a graphics directive which specifies that lines which follow are to be drawn dashed, with successive segments having absolute lengths d₁, d₂, … (repeated cyclically).

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AbsoluteDashing[d]

is equivalent to AbsoluteDashing[{d,d}].

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AbsoluteDashing[{d₁,d₂,…},offset]

offsets the dashes by offset.

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AbsoluteDashing[{d₁,d₂,…},offset,capform]

sets the CapForm for individual dashes to capform.

Details

Dash and offset lengths are measured in units of printer's points, equal before magnification to of an inch.
AbsoluteDashing[{}] specifies that lines should be solid. »
AbsoluteDashing can be used in both two- and three-dimensional graphics, as well as in Style specifications.
The following symbolic forms for d can be used: Tiny, Small, Medium, and Large. »
If a segment has a length d_i specified as 0, it is drawn as a dot whose diameter is the thickness of the line.
offset is specified in printer's points, and it may be positive or negative. If offset is not specified, it is 0.
capform can take any of the legal form values in CapForm[form]. If not specified, all segments will be drawn with the "Butt" cap form.

Examples

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Basic Examples (3)Summary of the most common use cases

Specify the dashing of lines as successive segments with lengths in printer's points:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-fageak

Out[1]=1

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-mja1i8

Out[1]=1

Use Dashed, Dotted, and DotDashed to specify predefined absolute dashings:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-gp28jf

Out[1]=1

Scope (4)Survey of the scope of standard use cases

Dashing Specifications (4)

No dashing:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-gx52c

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AbsoluteDashing[d] is equivalent to AbsoluteDashing[{d,d}]:

In[2]:=2

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https://wolfram.com/xid/0pu1bbcx4y-nmuo4

Out[2]=2

Symbolic values for predefined absolute dashings:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-if626o

Out[1]=1

Specify offset to dashed segments:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-pfml7r

Out[1]=1

Specify caps to dashed segments:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-bwwp1f

Out[1]=1

Properties & Relations (3)Properties of the function, and connections to other functions

AbsoluteDashing defines the length of a segment in units of printer's points:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-dygctt

Out[1]=1

AbsoluteDashing is independent of the image size:

In[2]:=2

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https://wolfram.com/xid/0pu1bbcx4y-b1ga0a

Out[2]=2

Dashing defines the length of a segment as a fraction of the total width of the graphic:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-pjd2m

Out[1]=1

Dashing depends on the image size:

In[2]:=2

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https://wolfram.com/xid/0pu1bbcx4y-co95nn

Out[2]=2

AbsoluteDashing overrides the CapForm directive:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-v2x8we

Out[1]=1

Specify the third argument to Dashing to set a cap form for all dashes:

In[2]:=2

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https://wolfram.com/xid/0pu1bbcx4y-ntea3q

Out[2]=2

Possible Issues (1)Common pitfalls and unexpected behavior

Line caps add to the length of individual dashes and may cause closely spaced dashes to overlap:

In[1]:=1

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https://wolfram.com/xid/0pu1bbcx4y-h4iqu5

Out[1]=1

Neat Examples (1)Surprising or curious use cases

Vary the offset for dashed rays out of the origin:

In[2]:=2

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https://wolfram.com/xid/0pu1bbcx4y-e8hhcx

Out[2]=2

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