stylefunction.js use ol.js

[songyumeng]

I saw some code in stylefunction.js which must use ol-debug.js because getFlatMidpoint is not an api function.

In ol/geom/LineString

If possible i want to use getCoordinateAt(0,5) instead of getFlatMidpoint() because getCoordinateAt is an api function.

[ahocevar]

getCoordinateAt() is too slow, because it recalculates the coordinate with every call. Isn't it possible for you to use the ol package?

[songyumeng]

Sorry, I didn't notice getFlatMidpoint has a cache.
I use ol.js , neither ol package nor ol-debug.js , and in my project icon-image is not displayed.
How about this , if there is getFlatMidpoint function，use it，otherwise use getCoordinateAt(0,5)，then all people who use ol.js can use image-icon .

[ahocevar]

Most users will use the default ol.render.Feature tile class with vector tiles, which does not have a getCoordinateAt() method. I'd suggest you either use the ol package, or modify the ol.geom.LineString prototype to provide a getFlatMidpoint method, such as

ol.geom.LineString.prototype.getFlatMidpoint = function() {
  return this.getCoordinateAt(0.5);
};

You can do this in your application before using any of ol-mapbox-style's functions.

[songyumeng]

OK.Thank you.