01: //=============================================================================
02: //=== Copyright (C) 2001-2007 Food and Agriculture Organization of the
03: //=== United Nations (FAO-UN), United Nations World Food Programme (WFP)
04: //=== and United Nations Environment Programme (UNEP)
05: //===
06: //=== This program is free software; you can redistribute it and/or modify
07: //=== it under the terms of the GNU General Public License as published by
08: //=== the Free Software Foundation; either version 2 of the License, or (at
09: //=== your option) any later version.
10: //===
11: //=== This program is distributed in the hope that it will be useful, but
12: //=== WITHOUT ANY WARRANTY; without even the implied warranty of
13: //=== MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: //=== General Public License for more details.
15: //===
16: //=== You should have received a copy of the GNU General Public License
17: //=== along with this program; if not, write to the Free Software
18: //=== Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19: //===
20: //=== Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
21: //=== Rome - Italy. email: geonetwork@osgeo.org
22: //==============================================================================
23:
24: package org.wfp.vam.intermap.services.map;
25:
26: import jeeves.interfaces.Service;
27: import jeeves.server.ServiceConfig;
28: import jeeves.server.context.ServiceContext;
29: import org.jdom.Element;
30: import org.wfp.vam.intermap.Constants;
31: import org.wfp.vam.intermap.kernel.map.MapMerger;
32: import org.wfp.vam.intermap.kernel.map.mapServices.BoundingBox;
33: import org.wfp.vam.intermap.kernel.marker.MarkerSet;
34: import org.wfp.vam.intermap.util.Util;
35:
36: /**
37: *
38: */
39:
40: public class SetScale implements Service {
41: public void init(String appPath, ServiceConfig config)
42: throws Exception {
43: }
44:
45: //--------------------------------------------------------------------------
46: //---
47: //--- Service
48: //---
49: //--------------------------------------------------------------------------
50:
51: public Element exec(Element params, ServiceContext context)
52: throws Exception {
53: int width = Integer.parseInt(params.getChildText("width"));
54: int height = Integer.parseInt(params.getChildText("height"));
55:
56: int scale = Integer.parseInt(params.getChildText("scale"));
57:
58: MapMerger mm = MapUtil.getMapMerger(context);
59:
60: BoundingBox bb = Util.parseBoundingBox(params); // search bb in params
61: if (bb == null)
62: bb = mm.getBoundingBox();
63:
64: BoundingBox scaledBB = MapUtil.setScale(bb, width, height,
65: scale, mm.getDPI());
66: mm.setBoundingBox(scaledBB);
67:
68: // Merge the images now
69: String imagename = mm.merge(width, height);
70: String url = MapUtil.getTempUrl() + "/" + imagename;
71:
72: // Prepare response
73: Element response = new Element("response").addContent(
74: new Element("imgUrl").setText(url)).addContent(
75: new Element("scale").setText(mm.getDistScale()))
76: .addContent(mm.getBoundingBox().toElement())
77: .addContent(new Element("width").setText("" + width))
78: .addContent(new Element("height").setText("" + height));
79:
80: MarkerSet ms = (MarkerSet) context.getUserSession()
81: .getProperty(Constants.SESSION_MARKERSET);
82: if (ms != null)
83: response.addContent(ms.select(mm.getBoundingBox())
84: .toElement());
85:
86: return response;
87: }
88: }
89:
90: //=============================================================================
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