svn-gvsig-desktop / tags / v1_1_Build_1013 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / layerOperations / InfoByPoint.java @ 13521
History | View | Annotate | Download (2.45 KB)
1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
---|---|
2 |
*
|
3 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
4 |
*
|
5 |
* This program is free software; you can redistribute it and/or
|
6 |
* modify it under the terms of the GNU General Public License
|
7 |
* as published by the Free Software Foundation; either version 2
|
8 |
* of the License, or (at your option) any later version.
|
9 |
*
|
10 |
* This program is distributed in the hope that it will be useful,
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
13 |
* GNU General Public License for more details.
|
14 |
*
|
15 |
* You should have received a copy of the GNU General Public License
|
16 |
* along with this program; if not, write to the Free Software
|
17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
18 |
*
|
19 |
* For more information, contact:
|
20 |
*
|
21 |
* Generalitat Valenciana
|
22 |
* Conselleria d'Infraestructures i Transport
|
23 |
* Av. Blasco Ib??ez, 50
|
24 |
* 46010 VALENCIA
|
25 |
* SPAIN
|
26 |
*
|
27 |
* +34 963862235
|
28 |
* gvsig@gva.es
|
29 |
* www.gvsig.gva.es
|
30 |
*
|
31 |
* or
|
32 |
*
|
33 |
* IVER T.I. S.A
|
34 |
* Salamanca 50
|
35 |
* 46005 Valencia
|
36 |
* Spain
|
37 |
*
|
38 |
* +34 963163400
|
39 |
* dac@iver.es
|
40 |
*/
|
41 |
package com.iver.cit.gvsig.fmap.layers.layerOperations; |
42 |
|
43 |
import java.awt.Point; |
44 |
import com.iver.cit.gvsig.fmap.DriverException; |
45 |
import com.iver.utiles.swing.threads.Cancellable; |
46 |
|
47 |
|
48 |
/**
|
49 |
* <p>Interface that must implement the layers which support the operation "<i>information by point</i>".</p>
|
50 |
* <p>That operation allows get meta-information from a point and an area around, of a layer or map.</p>
|
51 |
*/
|
52 |
public interface InfoByPoint { |
53 |
/**
|
54 |
* <p>Executes a consultation about information of a point on the layer.</p>
|
55 |
*
|
56 |
* <p>There is an area around the point where will get the information.</p>
|
57 |
*
|
58 |
* @param p point where is the consultation
|
59 |
* @param tolerance permissible margin around the coordinates of the point where the method will get the information. Each
|
60 |
* singular implementation of this method would use it in a different way. The coordinates also depend on the implementation.
|
61 |
* @param cancel object that implements the {@link Cancellable Cancellable} interface, and that allows cancel the draw</code>
|
62 |
*
|
63 |
* @return an array with XML items that have the information of that point
|
64 |
*
|
65 |
* @throws DriverException any exception produced using the driver.
|
66 |
*/
|
67 |
public XMLItem[] getInfo(Point p, double tolerance, Cancellable cancel) throws DriverException; |
68 |
} |