/*******************************************************************************
* Copyright 2010 Simon Mieth
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package org.kabeja.dxf.parser.entities;
import org.kabeja.dxf.parser.DXFValue;
import org.kabeja.entities.Entity;
import org.kabeja.entities.Spline;
import org.kabeja.entities.util.SplinePoint;
import org.kabeja.util.Constants;
/**
* @author <a href="mailto:simon.mieth@gmx.de">Simon Mieth</a>
*
*/
public class DXFSplineHandler extends AbstractEntityHandler {
public static final int CONTROL_POINT_X = 10;
public static final int CONTROL_POINT_Y = 20;
public static final int CONTROL_POINT_Z = 30;
public static final int FIT_POINT_X = 11;
public static final int FIT_POINT_Y = 21;
public static final int FIT_POINT_Z = 31;
public static final int START_TANGENT_X = 12;
public static final int START_TANGENT_Y = 22;
public static final int START_TANGENT_Z = 32;
public static final int END_TANGENT_X = 13;
public static final int END_TANGENT_Y = 23;
public static final int END_TANGENT_Z = 33;
public static final int FIT_TOLERANCE = 44;
public static final int KNOTS = 40;
public static final int WEIGHTS = 41;
public static final int CONTROLPOINT_TOLERANCE = 42;
public static final int KNOT_TOLERANCE = 43;
public static final int NUMBER_OF_FIT_POINTS = 74;
public static final int NUMBER_OF_CONTROL_POINTS = 73;
public static final int NUMBER_OF_CONTROL_POINTS2 = 96;
public static final int NUMBER_OF_NODES = 72;
public static final int NUMBER_OF_NODES2 = 95;
public static final int DEGREE = 71;
private Spline spline;
private SplinePoint point;
private double[] knots;
private double[] weights;
private int knotsCount;
private int controlPointCount;
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#getDXFEntityName()
*/
public String getDXFEntityType() {
return Constants.ENTITY_TYPE_SPLINE;
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#endDXFEntity()
*/
public void endDXFEntity() {
spline.setKnots(knots);
spline.setWeights(weights);
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#getDXFEntity()
*/
public Entity getDXFEntity() {
return spline;
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#isFollowSequence()
*/
public boolean isFollowSequence() {
return false;
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#parseGroup(int,
* de.miethxml.kabeja.parser.DXFValue)
*/
public void parseGroup(int groupCode, DXFValue value) {
switch (groupCode) {
case DEGREE:
spline.setDegree(value.getIntegerValue());
break;
case NUMBER_OF_CONTROL_POINTS:
weights = new double[value.getIntegerValue()];
controlPointCount = 0;
spline.setControlPointSize(value.getIntegerValue());
break;
case NUMBER_OF_FIT_POINTS:
spline.setFitPointSize(value.getIntegerValue());
break;
case NUMBER_OF_NODES:
knots = new double[value.getIntegerValue()];
knotsCount = 0;
spline.setNodePointsSize(value.getIntegerValue());
break;
case NUMBER_OF_NODES2:
knots = new double[value.getIntegerValue()];
knotsCount = 0;
spline.setNodePointsSize(value.getIntegerValue());
break;
case FIT_TOLERANCE:
spline.setFitTolerance(value.getDoubleValue());
break;
case KNOTS:
knots[knotsCount] = value.getDoubleValue();
knotsCount++;
break;
case KNOT_TOLERANCE:
spline.setKnotsTolerance(value.getDoubleValue());
break;
case WEIGHTS:
weights[controlPointCount] = value.getDoubleValue();
controlPointCount++;
break;
case CONTROLPOINT_TOLERANCE:
spline.setControlPointTolerance(value.getDoubleValue());
break;
case FIT_POINT_X:
point = new SplinePoint();
point.setType(SplinePoint.TYPE_FITPOINT);
point.setX(value.getDoubleValue());
spline.addSplinePoint(point);
break;
case FIT_POINT_Y:
point.setY(value.getDoubleValue());
break;
case FIT_POINT_Z:
point.setZ(value.getDoubleValue());
break;
case CONTROL_POINT_X:
point = new SplinePoint();
point.setType(SplinePoint.TYPE_CONTROLPOINT);
point.setX(value.getDoubleValue());
spline.addSplinePoint(point);
break;
case CONTROL_POINT_Y:
point.setY(value.getDoubleValue());
break;
case CONTROL_POINT_Z:
point.setZ(value.getDoubleValue());
break;
case START_TANGENT_X:
point = new SplinePoint();
point.setType(SplinePoint.TYPE_STARTTANGENT);
point.setX(value.getDoubleValue());
spline.addSplinePoint(point);
break;
case START_TANGENT_Y:
point.setY(value.getDoubleValue());
break;
case START_TANGENT_Z:
point.setZ(value.getDoubleValue());
break;
case END_TANGENT_X:
point = new SplinePoint();
point.setType(SplinePoint.TYPE_ENDTANGENT);
point.setX(value.getDoubleValue());
spline.addSplinePoint(point);
break;
case END_TANGENT_Y:
point.setY(value.getDoubleValue());
break;
case END_TANGENT_Z:
point.setZ(value.getDoubleValue());
break;
default:
super.parseCommonProperty(groupCode, value, spline);
}
}
/*
* (non-Javadoc)
*
* @see de.miethxml.kabeja.parser.entities.DXFEntityHandler#startDXFEntity()
*/
public void startDXFEntity() {
spline = new Spline();
}
}