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How to draw a simple threading

A threading draft may be created by drawing with the mouse or by typing a sequence of shaft numbers.

Using the mouse to create a threading draft:

straight an point draw buttons

Start by ensuring that one of the drawing tools has been selected; the best starting choices are straight draw or point draw. A drawing tool icon should appear depressed when it has been selected. Straight draw is the normal selection when the program first starts.

Click the point draw button button to select point draw. Place the mouse cursor into the threading draft, click the left mouse button where you want to start drawing threading, then drag left or right. This makes a red outlined rectangle, which fills itself with a threading pattern according to the drawing tool that's selected.

So long as you keep the mouse button pressed, the red rectangle will grow or shrink as you drag the mouse. When the mouse button is released, the red rectangle disappears, and the threading drawn inside it will be set in place. (You can undo (Cmd-Z) to remove what you have just drawn if you don't like it.)

It's not necessary to try to accurately trace the path of the actual threading with the mouse cursor - all you have to do is extend the red rectangle in a single diagonal stroke and let it fill itself. As long as you hold the mouse button down, the red rectangle remains visible, and you can increase or decrease the height and width of the block that you are drawing.
drawing threading animation

point threading, downward points

The two main drawing tools, straight draw and point draw can be used even for elaborate threadings such as overshot, by keeping the red rectangle two shafts high. drawing overshot threading
If you wish to click one square at a time, the first four mouse drawing tools all allow you to do so; network drawing tools are unsuitable for this.
Click once to make a grid square black.
Double click or Option-single click to clear a square and make it white again. If you have a two-button mouse, you can use single right-click.
undrawing a black square
Threading drafts only record one shaft per warp end. This means that if you make an error and wish to change threading to a different shaft, you simply point to the shaft you want. When you click, the new shaft is marked and the old mark disappears without your having to erase it first. This makes it easy to fix errors. clicking over another entry
See also:
Using the keyboard
Adding colors
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