Animating the fill of an SVG path

I am trying to fill a path that resembles a circle with color using animation. The color fill animation should follow a circular pattern, rather than filling from top to bottom or bottom to top.

Here is my SVG code:

<svg id="svg_circle" width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox = '0 0 450 400'>
    <g class="svg_circle" transform = "translate(0,0)">
        <path class="path" stroke="#F0F0F0" fill="#fff" stroke-width="1" opacity="1" d="m-0.25,238.11061l88.59461,-82.21665l87.56445,86.40604l-33.99561,0.52367c2.72107,17.03346 46.55824,67.96739 105.37633,63.99055c70.95792,-4.79765 101.17847,-64.19902 103.74816,-97.50561c7.13262,-92.44812 -81.66575,-121.29229 -115.80064,-115.90062c-119.13463,18.8176 -96.38311,112.29843 -96.38311,112.29843l-50.54082,-49.76652l-46.48973,43.1249c-12.30406,-104.7234 83.23188,-194.53124 191.25985,-198.17803c97.87838,-3.30416 202.62703,53.17701 213.76024,178.57248c16.06879,180.98587 -165.14043,220.64431 -208.6094,218.37164c-143.15297,-7.48456 -189.38275,-115.91408 -199.33787,-158.14925l-39.14646,-1.57102z" id="svg_1">
            <animate id="project_anim1" attributeName="fill" from="#fff" to="#4DAF4C" begin="1s" dur="1s" fill="freeze" repeatCount="1"></animate>
        </path>
    </g>
</svg>

Answer №1

If you're looking to create a unique line drawing technique, consider utilizing the "dasharray" method along with an arrow shape as a mask for your design.

This specific approach is detailed in a question on Stack Overflow

To achieve a seamless result when the head of the arrow shape overlaps the tail, it may be necessary to split the animation into two parts. Start by drawing the tail portion with its own mask, followed by creating a separate mask for the second half of the shape (including the arrow head).

Below is a rough demonstration showcasing this technique:

<svg id="svg_circle" width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" viewBox = '0 0 450 400'>
  <defs>
    <path id="arrow" stroke="#F0F0F0" fill="none" stroke-width="1" opacity="1" d="m-0.25,238.11061l88.59461,-82.21665l87.56445,86.40604l-33.99561,0.52367c2.72107,17.03346 46.55824,67.96739 105.37633,63.99055c70.95792,-4.79765 101.17847,-64.19902 103.74816,-97.50561c7.13262,-92.44812 -81.66575,-121.29229 -115.80064,-115.90062c-119.13463,18.8176 -96.38311,112.29843 -96.38311,112.29843l-50.54082,-49.76652l-46.48973,43.1249c-12.30406,-104.7234 83.23188,-194.53124 191.25985,-198.17803c97.87838,-3.30416 202.62703,53.17701 213.76024,178.57248c16.06879,180.98587 -165.14043,220.64431 -208.6094,218.37164c-143.15297,-7.48456 -189.38275,-115.91408 -199.33787,-158.14925l-39.14646,-1.57102z" id="svg_1"/>
    <clipPath id="arrow-clip" clipPathUnits="userSpaceOnUse">
      <use xlink:href="#arrow"/>
    </clipPath>
  </defs>

  <g clip-path="url(#arrow-clip)">
    <circle cx="244" cy="200" r="158" transform="rotate(-164,244,200)"
            fill="none" stroke="#4DAF4C" stroke-width="175"
            stroke-dasharray="993 993">
      <animate attributeName="stroke-dashoffset" from="993" to="0" begin="1s" dur="1s" fill="freeze" repeatCount="1"/>
    </circle>
  </g>
  <use xlink:href="#arrow"/>
</svg>

In this example, we are animating a thick green line by utilizing your desired shape as a clipping path for achieving the desired design.

Keep in mind that if there are imperfections where the arrow head meets the tail end, splitting the animation into two segments, as explained earlier, might be necessary to ensure a flawless outcome.

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