I have been working with leaflet-editable.js to allow the editing of shapes. Specifically I am creating a rectangle that will maintain an aspect ratio of 4:3 when a corner is dragged. I have created a function to calculate the aspect ratio and return the lat/lng of where the new corners should be drawn. I have attached this function to the event "editable:vertex:drag".
I'm not sure how to update the actual drawing of the rectangle to keep the scale. I have tried setting the object properties to the new bounds which updates but doesn't change the rectangle.
I think the answer is in refreshing the drawing of the rectangle but I don't know how to get the current rectangle instance nor how to refresh it.
Javascript is new for me
carto.on('editable:vertex:drag', function(e) {
console.log(e);
var cornersNe = e.vertex.latlngs[0], //ne
cornersNw = e.vertex.latlngs[1], //nw
cornersSw = e.vertex.latlngs[2], //sw
cornersSe = e.vertex.latlngs[3]; //se
var distanceWidth = carto.distance(cornersNw, cornersNe).toFixed(2);
var distanceHeight = carto.distance(cornersSw, cornersNw).toFixed(2);
var asR = aspectRatio(distanceWidth, distanceHeight, e.latlng.lat, e.latlng.lng);
var index = e.vertex.getIndex(),
next = e.vertex.getNext(),
previous = e.vertex.getPrevious(),
oppositeIndex = (index + 2) % 4,
opposite = e.vertex.latlngs[oppositeIndex],
bounds = new L.LatLngBounds(asR, opposite);
// L.marker(bounds).addTo(carto);
console.log('first set of bounds ', e.layer._bounds);
console.log('bounds to set ', bounds);
e.layer._bounds = bounds;
console.log('Updated set ',e.layer._bounds);
I am open to other ways of doing it if this is too roundabout.
