I am working on a widget that prints to a template, but I need the map print scale to be at 1:24000 or 1"=2000'. I have taken apart a few other widgets and got the results I was looking for except when I change the window size, the correct zoom scale is still shown on the screen but the image is captured at a larger scale. Is the code below my problem, or is the code that screen captures and resizes to a set template scale my problem?Zoom Function on click
protected function zoom_clickHandler(event:MouseEvent):void
{
if (map.scale > zoomScale)
{
map.scale = zoomScale;
}
Screengrab public class PrintMapUtil
{
// Draw the maps print extent ractangle as a graphic on the map, based on
// an image controls width and height
public static function trimmedExtent(map:Map, containerWidth:Number, containerHeight:Number):Graphic
{
var rectangle:Rectangle = clipRectangle(map, containerWidth, containerHeight);
var minMapPoint:MapPoint = map.toMap(new Point(rectangle.x,rectangle.y));
var maxMapPoint:MapPoint = map.toMap(new Point(rectangle.x + rectangle.width,
rectangle.y + rectangle.height));
var extent:Extent = new Extent(minMapPoint.x,minMapPoint.y,maxMapPoint.x,maxMapPoint.y)
return new Graphic(extent);
} // end trimmedExtent
// Get the maps print extent image as a BitMap. Used for the source of an image control.
// Image controls width and height are paramaters of this function.
public static function trimmedMap(map:Map, containerWidth:Number, containerHeight:Number):Bitmap
{
var rectangle:Rectangle = clipRectangle(map, containerWidth, containerHeight);
//get the map as bitmapdata so the part we want can be copied and clipped
var myBitmapData:BitmapData = new BitmapData(map.width,map.height);
myBitmapData.draw(map,null,null,null,rectangle,true);
// create a new cropped image to fit the map print area
var newBitmapData:BitmapData = new BitmapData(rectangle.width, rectangle.height)
newBitmapData.copyPixels(myBitmapData, rectangle, new Point(0, 0));
return new Bitmap(newBitmapData);
} // end trimmedMap
// Get the print Extent Rectangle based on a container's width and height
private static function clipRectangle(map:Map, containerWidth:Number, containerHeight:Number ):Rectangle
{
// check if the container is portrait or Landscape
var orientation:String="PORTRAIT";
if (containerWidth > containerHeight)
{
orientation="LANDSCAPE";
}
var ratioWidth:Number;
var ratioHeight:Number;
var clipRect:Rectangle = new Rectangle();
var ratio:Number;
var mapRatio:Number;
switch (orientation)
{
case "PORTRAIT":
{
ratio = containerWidth / containerHeight;
mapRatio = map.width / map.height;
//check the maps width and height to get the cropped size
//if (map.width > map.height)
if (mapRatio > ratio)
{
ratioHeight = map.height;
ratioWidth = map.height * ratio;
//centre the clip rectangle
clipRect.x = (map.width - ratioWidth) / 2;
clipRect.y = 0;
}
else
{
ratioWidth = map.width;
ratioHeight = map.width / ratio ;
clipRect.x = 0;
clipRect.y = (map.height - ratioHeight) / 2;
}
break;
}
case "LANDSCAPE":
{
ratio = containerHeight / containerWidth;
mapRatio = map.height / map.width;
//check the maps width and height to get the ratio
if (mapRatio < ratio)
{
ratioHeight = map.height;
ratioWidth = map.height / ratio;
//centre the clip rectangle
clipRect.x = (map.width - ratioWidth) / 2;
clipRect.y = 0;
}
else
{
ratioWidth = map.width;
ratioHeight = map.width * ratio;
clipRect.x = 0;
clipRect.y = (map.height - ratioHeight) / 2;
}
break;
}
}
clipRect.width=ratioWidth;
clipRect.height=ratioHeight;
return clipRect;
} // end clipRectangle
} // end class PrintMapUtil
} // end package
