topic Re: Delete Multiple Graphic in ArcGIS JavaScript Maps SDK Questions

Delete Multiple Graphic

JerryGarcia — Sun, 16 Nov 2014 16:56:02 GMT

I am trying to delete all graphics within a polygon, but the following code only removes the first graphic. Any suggestions?

fieldGeom is a valid polygon. It removes one point graphic, but then exits loop and does not remove a second point graphic.

Thanks!

	this.pointGraphics.graphics.forEach(function (g) {
	for (var x = 0; x < fieldIds.length; x++) {
	fieldGeom = that.getFieldGeometry(fieldIds);
	if (fieldGeom.contains(g.geometry) === true) {
	that.pointGraphics.remove(g);
	}
	}
	});

Re: Delete Multiple Graphic

RobertScheitlin__GISP — Sun, 16 Nov 2014 20:01:06 GMT

Jerry,

When looping though an array to delete objects from that array you always need to loop in reverse.

        for (var d = this.pointGraphics.graphics.length - 1; d-- >= 0;) {
            var dpnt = this.pointGraphics.graphics;
            for (var x = 0; x < fieldIds.length; x++) {
                fieldGeom = that.getFieldGeometry(fieldIds);
                if (fieldGeom.contains(dpnt.geometry) === true) {
                    that.pointGraphics.remove(dpnt);
                }
           }
        }