request Event

The function to be called when request the data.

Syntax

Javascript (Usage)
Javascript (Specification)

$(function () {
    // Set request event handler function
    $(".selector").wijvirtuallayer({
        request : function (paper, minZoom, maxZoom, lowerLeft, upperRight) {
     
        }
    });
});

request = function ( 
   paper : RaphaelPaper,
   minZoom : number,
   maxZoom : number,
   lowerLeft : IPoint,
   upperRight : IPoint
) { };

Parameters

paper: The Raphael paper to draw the items.
minZoom: The min zoom suits the current request slice.
maxZoom: The max zoom suits the current request slice.
lowerLeft: The coordinates of the lower left point of the current request slice, in geographic unit.
upperRight: The coordinates of the upper right point of the current request slice, in geographic unit.

Remarks

<p>The virtual layer request the items to be drawn when the slice need be redrawn. If want to refresh the items, call refresh() method if necessary.</p> <p>The items will be arranged to the position based on it's location.</p>

Reference

options type
wijvirtuallayer jQuery Widget