floatPrecision should ignore gradient stops

[tasiotas]

Hi,

I noticed that when setting floatPrecision to 0, it will totally mess up gradient stops.
It does work well on path/shapes position precision optimization, but not so well on gradient stops.

Perhaps we could have a flag to exclude or set separate floatPrecision for gradient stops?

before

<linearGradient id="a" x1="2" x2="139.4" y1="43.4" y2="-.9" gradientUnits="userSpaceOnUse">
      <stop offset="0" stop-color="#fc0"/>
      <stop offset=".1" stop-color="#ff7600"/>
      <stop offset=".2" stop-color="#ff6d1e"/>
      <stop offset=".3" stop-color="#ff556c"/>
      <stop offset=".4" stop-color="#ff2fe6"/>
      <stop offset=".5" stop-color="#ff29f9"/>
      <stop offset=".6" stop-color="#ca36fb"/>
      <stop offset=".8" stop-color="#5e50fe"/>
      <stop offset=".9" stop-color="#335bff"/>
      <stop offset="1" stop-color="#237aff"/>
      <stop offset="1" stop-color="#217dff"/>
    </linearGradient>

after

<linearGradient id="a" x1="2" x2="139" y1="43" y2="-1" gradientUnits="userSpaceOnUse">
      <stop offset="0" stop-color="#fc0"/>
      <stop offset="0" stop-color="#ff7600"/>
      <stop offset="0" stop-color="#ff6d1e"/>
      <stop offset="0" stop-color="#ff556c"/>
      <stop offset="0" stop-color="#ff2fe6"/>
      <stop offset="0" stop-color="#ff29f9"/>
      <stop offset="1" stop-color="#ca36fb"/>
      <stop offset="1" stop-color="#5e50fe"/>
      <stop offset="1" stop-color="#335bff"/>
      <stop offset="1" stop-color="#237aff"/>
      <stop offset="1" stop-color="#217dff"/>
    </linearGradient>

[GreLI]

Not so sure that it should. E.g. you would want instead of something like 0.66667 to use .67. Zero digits is actually quite extreme setting, though it can have it uses.

[tasiotas]

I was just comparing output from this library vs https://svgomg.net.

On svgomg I do get a benefit of of smaller filesize when setting precision to 0 and still having intact gradients.

[Paul-Browne]

#1843

would solve your issue by passing

floatPrecision: {
    default: 0,
    offset: 2
}

Alternatively

floatPrecision: {
    d: 0,          // for paths, d="M123 456 789..."
    points: 0      // for polygons
}