Class MapCanvas

var mc = new MapCanvas(somediv, somegrid);
// Will create a new MapCanvas object to be contained by the
// somediv object on the page, with the projection defined in
// somegrid.

mc.loadImage(imgURL, true);
// This will load the image found at imgURL, and will cause the
// container to be stretched/shrunk to match the image size

var imgdim = mc.getImageSize();
// imgdim.width will have the width, imgdim.height will have the
// height of the image

var rbb = mc.getRBB();

var canvas = mc.getCanvas();

mc.loadGrid(newGrid, 1.1, 1.2);
// This will load the newGrid projection, and set the top left
// corner's row/col offset information.

mc.setClearOnClick(true);  // single-clicks will clear the boxes
mc.setClearOnClick(false); // single-clicks don't clear the boxes

mc.setShowXY(true);     // causes the green XY box to be shown
mc.setShowXY(false);    // causes the green XY box to be hidden

mc.setShowLatLon(true); // causes the red lat/lon box to be shown
mc.setShowLatLon(false);// causes the red lat/lon box to be hidden

mc.setShowSphericalRectangle(true);
// causes the yellow spherical rectangle box to be shown
mc.setShowSphericalRectagle(false);
// causes the yellow spherical rectangle box to be hidden

mc.setShowRowCol(true);
// causes the white row/col box to be shown
mc.setShowRowCol(false);
// causes the white row/col box to be hidden

rbb.setXYFromLatLonPolygon("50,50,50,100,100,100,100,50,50,50");
// string form
rbb.setXYFromLatLonPolygon(50,50,50,100,100,100,100,50,50,50);
// array of integers form
rbb.setXYFromLatLonPolygon(pt1, pt2, pt3, pt4, pt1);
// array of Points form

mc.adjustLatLonParam('north', 70.2);
// sets the NORTH value of the boxes to 70.2

var ok = mc.xyToLatLon(100, 100, newlat, newlon);
// The latitude will be at newlat[0], the longitude will be at
// newlon[0].  ok will be true if there were no errors.

var ok = mc.xyToRowCol(100, 100, newrow, newcol, true);
// The row will be at newrow[0], the column will be at newcol[0]
// and both will be truncated to integers.

var ok = mc.latLonToXY(30.2, 51.3, newx, newy);
// newx[0] and newy[0] will contain the XY coordinate of the
// point at 30.2 north, 51.3 east.

var ok = mc.latLonToRowCol(30.2, 51.3, newrow, newcol);
// newrow[0] and newcol[0] will contain the row/col coordinate
// of the point at 30.2 north, 51.3 east.

var ok = mc.rowColToXY(8.3, 3.2, newx, newy);
// newx[0] and newy[0] will contain the XY coordinate of the
// grid row 8.3, column 3.2 on the map.

var ok = mc.rowColToLatLon(8.3, 3.2, newlat, newlon);
// newlat[0] and newlon[0] will contain the lat/lon coordinate
// of grid row 8.3, column 3.2 on the map.

mc.addLatLonListener(newLLfunc);
// adds newLLfunc to the listener list for the class

mc.addLatLonPolygonListener(newLLPfunc);
// adds newLLPfunc to the listener list for the class

mc.addRowColListener(newRCfunc);
// adds newRCfunc to the listener list for the class

mc.addMousePosListener(newMousefunc);
// adds newLLfunc to the listener list for the class

mc.addDblClickListener(newDCfunc, this);
// adds newDCfunc to the listener list for the class, and will
// return "this" with the event

mc.addSingleClickListener(newSCfunc, this);
// adds newSCfunc to the listener list for the class, and will
// return "this" with the event

mc.addImgLoadListener(newILfunc);
// adds newILfun to the listener list

this.getMoreMousePosInfo(thispoint);
// Will add more info to thispoint

parent.getMoreBoxInfo(thisbox);
// Will add more info to thisbox

mc.clearBox();  // Resets the rubberband boxes