MapMouseEvent ReferencedEnvelope based on number of pixels
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Key: GEOT-3715
URL: https://jira.codehaus.org/browse/GEOT-3715
Project: GeoTools
Issue Type: Wish
Components: swing
Reporter: Jody Garnett
The following is a "wish"; wish sounds so nice as far as JIRA issues go; I hope
your wishes come true....
{code}
public JMapPane getSource() {
return (JMapPane) super.getSource();
}
/**
* Get the position, in map (world) using a small rectangle of a set
* number of pixels.
*
* @param pixels Number of pixels to select with (example 1 or 3 pixels)
* @return A new referenced envelope object for the world coordinstes
(based on number of pixels)
*/
public ReferencedEnvelope getMapPosition( int pixels ){
Rectangle screenRect = new Rectangle(
getX()-(pixels/2),
getY()-(pixels/2),
pixels, pixels);
JMapPane pane = getSource();
Rectangle2D worldRect =
pane.getScreenToWorldTransform().createTransformedShape(screenRect).getBounds2D();
ReferencedEnvelope mapRectangle = new ReferencedEnvelope(
worldRect, pane.getMapContext().getCoordinateReferenceSystem());
return mapRectangle;
{code}
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