<patternlayout /> element, <padgroup /> element

[seveibar]

A <patternlayout /> element places all it's components in a designated pattern.

The pattern prop can be:

• linear
• grid
• circular
• quad

This is useful for footprint pads that need to be placed in a quad pattern, or keyboards with fixed-distance keys.

You can use a <patternlayout /> within a constrainedlayout but it the pattern-established relative distances are fixed.

Example usage:

<chip
  footprint={
   <footprint>
     <patternlayout pattern="quad" leftSidePins={2} rightSidePins={2} widthFromCenters={5} heightFromCenters={3}>
        <smtpad width="10mm" height="4mm" pinNumber={1} />
        <smtpad width="10mm" height="4mm" pinNumber={2} />
        <smtpad width="10mm" height="4mm" pinNumber={3} />
        <smtpad width="10mm" height="4mm" pinNumber={4} />
     </patternlayout>
   </footprint>
   }
/>

Quad could have the following props:

• left/top/right/bottomSidePins
• height/widthFromCenters, outerWidth, innerWidth
• pitch
• pin1Position ("leftside-top" | "topside-left" | "topside-right" etc, see footprinter for enum)

This is very similar to footprinter, except we can do more complex things for each pin. For example we could have <padgroup /> to allow multiple elements per pad to form a stamp.

<chip
  footprint={
   <footprint>
     <patternlayout pattern="quad" leftSidePins={2} rightSidePins={2} widthFromCenters={5} heightFromCenters={3}>
          <padgroup pinNumber={1}>
            <smtpad shape="rect" width="10mm" height="4mm" />
            <smtpad shape="circle" radius="1mm" pcbX={5} />
            <hole radius="0.5mm" />
          </padgroup>
     </patternlayout>
   </footprint>
   }
/>