org.jgrasstools.gears.io.dxfdwg.libs.DwgHandler Maven / Gradle / Ivy
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/*
* JGrass - Free Open Source Java GIS http://www.jgrass.org
* (C) HydroloGIS - www.hydrologis.com
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Library General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option) any
* later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
* details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; if not, write to the Free Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.jgrasstools.gears.io.dxfdwg.libs;
import java.io.File;
import java.io.IOException;
import java.util.List;
import org.jgrasstools.gears.io.dxfdwg.libs.dwg.DwgFile;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
public class DwgHandler {
private final DwgFile dwgFile;
private GeometryTranslator gTranslator;
public DwgHandler( File dxfFile, CoordinateReferenceSystem crs ) {
this.dwgFile = new DwgFile(dxfFile.getAbsolutePath());
gTranslator = new GeometryTranslator(crs);
}
public DwgReader getDwgReader() throws Exception {
return new DwgReader(dwgFile, gTranslator);
}
public List getLayerTypes() throws Exception {
dwgFile.read();
dwgFile.initializeLayerTable();
dwgFile.calculateGisModelDwgPolylines();
dwgFile.applyExtrusions();
dwgFile.testDwg3D();
dwgFile.blockManagement();
List layerNames = dwgFile.getLayerNames();
if (layerNames.isEmpty()) {
throw new IOException("No layer found in the file.");
}
return layerNames;
}
}