How to move multiple coordinate MIL-STD252D symbols via mouse drag

rod182211 — Fri, 08 Apr 2022 02:29:43 GMT

Hi All, I am seeking advice on an approach to enable moving multiple coordinate symbols such as the arrow line below via the mouse. I have no issues moving single coordinate symbols. My current code for a single coordinate is below. Has someone developed or could share a method they have developed?

identifyGraphics.addDoneListener(() -> {

try {
if (!identifyGraphics.get().getGraphics().isEmpty()) {
// get the first identified graphic
identifiedGraphic = identifyGraphics.get().getGraphics().get(0);
// select the identified graphic
identifiedGraphic.setSelected(true);
eventHandlersymbolfirstmove = new EventHandler<javafx.scene.input.MouseEvent>() {
@Override
public void handle(javafx.scene.input.MouseEvent event) {

if (identifiedGraphic.isSelected() && identifiedGraphic != null) {

// set the cursor to closed hand to indicate graphic dragging is active
sceneView.setCursor(Cursor.CLOSED_HAND);
//Get the selected graphic attributes and reference the current graphic ID
Map<String, Object> identified = identifiedGraphic.getAttributes();
identifiedGraphicid = (String) identified.get("_id");
//Get the current array of coordiates
// String identifiedGraphiccoordinates = (String) identified.get("_control_points");

// System.out.println(identifiedGraphiccoordinates);
// create a point from the dragged location
mapViewPoint = new Point2D(event.getX(), event.getY());
Point mapPoint = sceneView.screenToLocation(mapViewPoint);
// update the location of the graphic to the dragged location
identifiedGraphic.setGeometry(mapPoint);
//Convert to lat long decimal
String latLonDecimalDegrees = CoordinateFormatter.toLatitudeLongitude(mapPoint,
CoordinateFormatter.LatitudeLongitudeFormat.DECIMAL_DEGREES, 4);
//Convert for my symbol attribute method
String coordinates = Tools.degreesToString(latLonDecimalDegrees);
// Concert to JSON for transmission across the network
updateonmap = mapPoint.toJson();
eventHandlersymbolmove = (javafx.scene.input.MouseEvent e1) -> {
identifiedGraphic.setSelected(false);
sceneView.setCursor(Cursor.DEFAULT);
// clear any selected graphic
graphicsOverlay.clearSelection();
sceneView.removeEventFilter(javafx.scene.input.MouseEvent.MOUSE_DRAGGED,
eventHandlersymbolfirstmove);
event.consume();
};

sceneView.addEventFilter(javafx.scene.input.MouseEvent.MOUSE_RELEASED,
eventHandlersymbolmove);

try {
/* send the move information over the network and updates the database with
the new information for the coordinates */
moveSymbolTransmission(coordinates, updateonmap);
/* update the database with the changes */
updateRecord.UpdateSymbol(identifiedGraphicid.trim(), coordinates.trim());

} catch (Exception e11) {
LOG.severe(e11, "Failed to move symbol and update database: %s",
e11.getMessage());
}

}

event.consume();

};

};
sceneView.addEventFilter(javafx.scene.input.MouseEvent.MOUSE_DRAGGED,
eventHandlersymbolfirstmove);
}
} catch (InterruptedException e1) {
LOG.severe(e1, "Error graphic: %s", e1.getMessage());
e1.printStackTrace();
} catch (ExecutionException e1) {
new Alert(Alert.AlertType.ERROR, "Error identifying clicked graphic").show();
LOG.severe(e1, "Error identifying clicked graphic: %s", e1.getMessage());
}

});

Re: How to move multiple coordinate MIL-STD252D symbols via mouse drag

MarkBaird — Mon, 11 Apr 2022 11:13:17 GMT

I don't have any specific code to do what you are looking for, but I'd approach it something like this:

When you identify or get the geometry of say an arrow you you'll get back a MultiPoint which will contain the control points for your arrow.
You should be able to work out a delta x and y from your dragging operation.
You can create a new MultiPoint by looping through the points in the old geometry, apply the delta to each point and then set the new geometry to your graphic.

Does this help?

topic Re: How to move multiple coordinate MIL-STD252D symbols via mouse drag in Java Maps SDK Questions

How to move multiple coordinate MIL-STD252D symbols via mouse drag

Re: How to move multiple coordinate MIL-STD252D symbols via mouse drag