Corel Painter X3 Win/Mac, EDU, EN Guide de l'utilisateur télécharger pdf (Page 756)

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101

Weaves 733

Defining warp and weft expressions

The warp and weft expressions use the information in the tie-up to extend and evolve

the weave into larger, more complex patterns. For more information, see “Designing the

tie-up” on page 736.

Warp and weft expressions in traditional weaving

In traditional weaving, the warp expression represents the threading sequence, in other

words, it describes which warp threads are connected to which harnesses. The weft

expression is the treadling sequence that determines which treadle is pressed (and

therefore which harnesses are raised) for each successive weft thread.

The following table describes which warp threads are connected to which harnesses for

the warp sequence 234123:

The threading sequence above, 234123, has a length of 6, which indicates that the

pattern runs for 6 threads before repeating.

The following table describes which treadle is pressed (and therefore which harnesses

are raised) for each successive weft thread for the weft sequence 654:

Connect warp thread To harness

#1 #2

#2 #3

#3 #4

#4 #1

#5 #2

#6 #3

The sequence repeats for subsequent threads.

#7 #2

#8 #3

#9 #4

Press treadle For weft thread

#6 #1

1 2 ... 751 752 753 754 755 756 757 758 759 760 761 ... 942 943

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