105 lines
3.1 KiB
Markdown
105 lines
3.1 KiB
Markdown
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---
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title: Making your pattern paperless
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order: 270
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---
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Users can request paperless patterns by setting the `paperless` setting to `true`.
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We can get that value of the setting from the `part.shorthand()` method.
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It will be the last shorthand we need:
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```js
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let {
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Point,
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points,
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Path,
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paths,
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measurements,
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options,
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macro,
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complete,
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snippets,
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Snippet,
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paperless
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} = part.shorthand();
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```
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The idea behind *paperless patterns* is that users don't need to print your
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pattern in order to use it.
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Instead, we include dimensions on the pattern that allows them to transfer
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the pattern directly onto fabric, or onto an intermediate medium such as tracing paper.
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In addition, FreeSewing will automatically render a grid for each pattern part with metric or imperial
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marcations, depending on the units requested by the user.
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While the grid gets added automatically, the dimensions you have to add yourself.
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Thankfully, there's macros that can help you with that, specifically:
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- The `hd` macro adds a horizontal dimension
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- The `vd` macro adds a vertical dimension
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- The `ld` macro adds a linear dimension
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- The `pd` macro adds a path dimension that follows a given path
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<Fixme> Add links to macro docs </Fixme>
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Let's look at the code:
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```js
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if (paperless) {
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// Add dimensions
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macro("hd", {
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from: points.bottomLeftStart,
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to: points.bottomRightEnd,
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y: points.bottomLeft.y + 15
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});
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macro("vd", {
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from: points.bottomRightStart,
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to: points.bottom,
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x: points.bottomRight.x + 15
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});
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macro("vd", {
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from: points.bottomRightStart,
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to: points.right,
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x: points.bottomRight.x + 30
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});
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macro("vd", {
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from: points.bottomRightStart,
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to: points.tipLeftTopStart,
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x: points.bottomRight.x + 45
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});
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macro("hd", {
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from: points.left,
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to: points.right,
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y: points.left.y + 25
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});
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macro("ld", {
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from: points.tipLeftBottomEnd,
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to: points.tipLeftTopStart,
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d: 15
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});
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}
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```
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There's a lot going on, but it's mostly repetition. Let's look at the end result, and discuss:
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<Example pattern="tutorial" part="bib" caption="Your paperless bib" settings={{paperless: true}} />
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We used the `hd` macro to add two horizontal dimensions:
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- One at the bottom for the width of our bib
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- One for the width of the neck opening
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The `hd` macro takes a `from` and `to` point as well as a `y` value that says at what Y-value to draw the dimension.
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We've also added three `vd` macros for the vertical dimensions on the right.
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They also takes a `from` and `to` point, but expect a `x` parameter to indicate at what X-value the dimension should be drawn.
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Finally, we added a `ld` macro for the linear dimension at the top that marks the width of our strap.
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While most dimensions are horizontal or vertical, sometimes you want a straight line from the `from` to the `to` points like in this case.
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The `ld` macro takes a `d` argument (short for delta) that indicates how far the dimension should be offset from the line from the `from` to the `to` point, if at all.
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Making your pattern paperless is the icing on the cake. Time to wrap up, go over what we've learned, and give some pointers on where to go from here.
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