I´m just starting programming with ChatGPT. This helped me a lot.
Maby also for you:
It seems like you're trying to animate a SVG line using JavaScript and integrate it with Hype's timeline features. Your script currently attempts to control the timeline and apply a static change to the stroke-dashoffset
property, but doesn't seem to animate the property over time. To animate the stroke length of a SVG path from 50% to 100% using JavaScript and Hype, you'll need to modify your approach slightly. Here are some steps and a sample script to help you achieve this:
1. Setup Your SVG
Ensure your SVG path has the stroke-dasharray
and stroke-dashoffset
attributes set up. The stroke-dasharray
sets the pattern of the stroke, and stroke-dashoffset
controls how much of the stroke is visible starting from the beginning of the path. Initially, set stroke-dasharray
to the total length of the path and stroke-dashoffset
to half of this value to show 50% of the line.
<svg width="200" height="200">
<path id="pie_path" d="M50,100 a50,50 0 1,0 100,0 a50,50 0 1,0 -100,0"
fill="none" stroke="black" stroke-width="4"
stroke-dasharray="314" stroke-dashoffset="157" />
</svg>
2. Animate the SVG Path in JavaScript
Use JavaScript to animate the stroke-dashoffset
from its initial value to 0, effectively revealing the entire path. Here's how you could modify your script:
var animationDuration = 2000; // Animation duration in milliseconds
var initialOffset = 157; // Initially, half the path is visible
var finalOffset = 0; // Target, showing the full path
var svgElement = hypeDocument.getElementById('pie_path');
var start = null;
function step(timestamp) {
if (!start) start = timestamp;
var progress = timestamp - start;
var currentOffset = initialOffset - ((initialOffset - finalOffset) * (progress / animationDuration));
hypeDocument.setElementProperty(svgElement, 'stroke-dashoffset', currentOffset);
if (progress < animationDuration) {
window.requestAnimationFrame(step);
} else {
hypeDocument.setElementProperty(svgElement, 'stroke-dashoffset', finalOffset);
}
}
window.requestAnimationFrame(step);
Explanation:
window.requestAnimationFrame(step)
: This function tells the browser that you wish to perform an animation and requests that the browser calls a specified function to update an animation before the next repaint. The number of callbacks is usually about 60 times per second.
step(timestamp)
: This function is called repeatedly by requestAnimationFrame
. It calculates the current offset of the stroke based on the elapsed time and updates the stroke-dashoffset
.
progress
calculation: This determines how far along the duration we are, and accordingly adjusts the dash offset.
Integration with Hype
You might be using specific Hype functions like startTimelineNamed
and continueTimelineNamed
for other animations or synchronizing multiple animations. You may adjust the script accordingly to fit within those controls, but the above script provides a standalone solution for animating a SVG path using JavaScript.
Remember, depending on the specifics of your implementation (especially with Hype), you might need to adjust the code to better fit your exact setup.