// public void savePDF(){
// Rectangle suggestedPageSize = getITextPageSize(page1.getPageSize());
// Rectangle pageSize = rotatePageIfNecessary(suggestedPageSize);
// //rotate if we need landscape
// Document document = new Document(pageSize);
//
// PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(outputFile));
// document.open();
// Graphics2D graphics = cb.createGraphics(pageSize.getWidth(), pageSize.getHeight());
//
// // call your GTRenderer here
// GTRenderer draw = new StreamingRenderer();
// draw.setMapContent(mapContent);
//
// draw.paint(graphics, outputArea, mapContent.getLayerBounds() );
//
// // cleanup
// graphics.dispose();
//
// //cleanup
// document.close();
// writer.close();
// }
public void saveImage(final MapContent map, final String file, final int imageWidth) {
GTRenderer renderer = new StreamingRenderer();
renderer.setMapContent(map);
Rectangle imageBounds = null;
ReferencedEnvelope mapBounds = null;
try {
mapBounds = map.getMaxBounds();
double heightToWidth = mapBounds.getSpan(1) / mapBounds.getSpan(0);
imageBounds = new Rectangle(0, 0, imageWidth, (int) Math.round(imageWidth * heightToWidth));
} catch (Exception e) {
// failed to access mapContent layers
throw new RuntimeException(e);
}
BufferedImage image =
new BufferedImage(imageBounds.width, imageBounds.height, BufferedImage.TYPE_INT_RGB);
Graphics2D gr = image.createGraphics();
gr.setPaint(Color.WHITE);
gr.fill(imageBounds);
try {
renderer.paint(gr, imageBounds, mapBounds);
File fileToSave = new File(file);
ImageIO.write(image, "jpeg", fileToSave);
} catch (Exception e) {
e.printStackTrace();
}
}
public void saveNewImage(MapContent map, String file) {
GTRenderer renderer = new StreamingRenderer();
renderer.setMapContent(map);
System.out.println("line 139");
Rectangle imageBounds = null;
try {
ReferencedEnvelope mapBounds = map.getMaxBounds();
double heightToWidth = mapBounds.getSpan(1) / mapBounds.getSpan(0);
int imageWidth = 600;
imageBounds = new Rectangle(0, 0, imageWidth, (int) Math.round(imageWidth * heightToWidth));
} catch (Exception e) {
}
System.out.println("line 151");
// Rectangle imageSize = new Rectangle(600,600);
BufferedImage image =
new BufferedImage(
imageBounds.width, imageBounds.height, BufferedImage.TYPE_INT_RGB); // darker red fill
Graphics2D gr = image.createGraphics();
gr.setPaint(Color.WHITE);
gr.fill(imageBounds);
try {
System.out.println("line 161");
renderer.paint(gr, imageBounds, map.getMaxBounds());
System.out.println("line 163");
File fileToSave = new File(file);
System.out.println("line 166");
ImageIO.write(image, "jpeg", fileToSave);
System.out.println("line 168");
} catch (IOException e) {
}
}
/**
* It zooms in and out as the user uses the mousewheel. The mouse stays pointing in the same map
* coordinates
*
* @param ev
*/
private void handleMouseWheelEvent(MouseWheelEvent ev) {
if (this.IsRendering()) {
return;
}
double zoomFactor = 0.5;
int clicks = ev.getWheelRotation();
// -ve means wheel moved up, +ve means down
int sign = (clicks > 0 ? -1 : 1);
zoomFactor = sign * zoomFactor / 2;
Point2D mouseMapPointPos = this.getPointInMap(ev.getPoint());
ReferencedEnvelope env = this.getDisplayArea();
double width = env.getSpan(0);
double height = env.getSpan(1);
double newWidth = width - (width * zoomFactor);
double newHeight = height - (height * zoomFactor);
double centerX = env.getMedian(0);
double centerY = env.getMedian(1);
double distanceMouseCenterAlongX = mouseMapPointPos.getX() - centerX;
double distanceMouseCenterAlongY = mouseMapPointPos.getY() - centerY;
centerX += distanceMouseCenterAlongX * zoomFactor;
centerY += distanceMouseCenterAlongY * zoomFactor;
double newMinX = centerX - newWidth / 2;
double newMinY = centerY - newHeight / 2;
double newMaxX = centerX + newWidth / 2;
double newMaxY = centerY + newHeight / 2;
env =
new ReferencedEnvelope(
newMinX, newMaxX, newMinY, newMaxY, env.getCoordinateReferenceSystem());
this.setDisplayArea(env);
// this.refresh();
}
/**
* It updates the pixel resolution of the map for each change of the DisplayArea.
*
* @param ev
*/
public void handleOnDisplayAreaChanged(MapPaneEvent ev) {
ReferencedEnvelope newDisplayArea = this.getDisplayArea();
double widthInMap = newDisplayArea.getSpan(0);
double widthInPixels = this.getSize().getWidth();
this.pixelResolution = widthInMap / widthInPixels;
}
