root / trunk / libraries / libDwg / src / com / iver / cit / jdwglib / dwg / objects / DwgSpline.java @ 9825
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/* jdwglib. Java Library for reading Dwg files.
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*
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* Author: Jose Morell Rama (jose.morell@gmail.com).
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* Port from the Pythoncad Dwg library by Art Haas.
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*
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* Copyright (C) 2005 Jose Morell, IVER TI S.A. and Generalitat Valenciana
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Jose Morell (jose.morell@gmail.com)
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*
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* or
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*
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* IVER TI S.A.
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* C/Salamanca, 50
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* 46005 Valencia
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* Spain
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.jdwglib.dwg.objects; |
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import java.util.ArrayList; |
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import com.iver.cit.jdwglib.dwg.DwgObject; |
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import com.iver.cit.jdwglib.dwg.DwgUtil; |
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import com.iver.cit.jdwglib.dwg.IDwg3DTestable; |
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/**
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* The DwgSpline class represents a DWG Spline
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*
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* @author jmorell
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*/
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public class DwgSpline extends DwgObject implements IDwg3DTestable{ |
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public DwgSpline(int index) { |
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super(index);
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// TODO Auto-generated constructor stub
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} |
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private int scenario; |
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private int degree; |
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private double fitTolerance; |
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private double[] beginTanVector; |
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private double[] endTanVector; |
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private boolean rational; |
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private boolean closed; |
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private boolean periodic; |
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private double knotTolerance; |
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private double controlTolerance; |
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private double[] knotPoints; |
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private double[][] controlPoints; |
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private double[] weights; |
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private double[][] fitPoints; |
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/**
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* Read a Spline in the DWG format Version 15
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*
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* @param data Array of unsigned bytes obtained from the DWG binary file
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* @param offset The current bit offset where the value begins
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* @throws Exception If an unexpected bit value is found in the DWG file. Occurs
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* when we are looking for LwPolylines.
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*/
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public void readDwgSplineV15(int[] data, int offset) throws Exception { |
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int bitPos = offset;
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bitPos = readObjectHeaderV15(data, bitPos); |
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ArrayList v = DwgUtil.getBitShort(data, bitPos);
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bitPos = ((Integer)v.get(0)).intValue(); |
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int sc = ((Integer)v.get(1)).intValue(); |
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scenario = sc; |
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v = DwgUtil.getBitShort(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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int deg = ((Integer)v.get(1)).intValue(); |
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degree = deg; |
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int knotsNumber = 0; |
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int controlPointsNumber = 0; |
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int fitPointsNumber = 0; |
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boolean weight = false; |
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if (sc==2) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double ft = ((Double)v.get(1)).doubleValue(); |
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fitTolerance = ft; |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double x = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double y = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double z = ((Double)v.get(1)).doubleValue(); |
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double[] coord = new double[]{x, y, z}; |
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beginTanVector = coord; |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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x = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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y = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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z = ((Double)v.get(1)).doubleValue(); |
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coord = new double[]{x, y, z}; |
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endTanVector = coord; |
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v = DwgUtil.getBitShort(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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fitPointsNumber = ((Integer)v.get(1)).intValue(); |
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} else if (sc==1) { |
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v = DwgUtil.testBit(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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boolean rat = ((Boolean)v.get(1)).booleanValue(); |
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rational = rat; |
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v = DwgUtil.testBit(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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boolean closed = ((Boolean)v.get(1)).booleanValue(); |
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this.closed = closed;
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v = DwgUtil.testBit(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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boolean per = ((Boolean)v.get(1)).booleanValue(); |
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periodic = per; |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double ktol = ((Double)v.get(1)).doubleValue(); |
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knotTolerance = ktol; |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double ctol = ((Double)v.get(1)).doubleValue(); |
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controlTolerance = ctol; |
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v = DwgUtil.getBitLong(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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knotsNumber = ((Integer)v.get(1)).intValue(); |
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v = DwgUtil.getBitLong(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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controlPointsNumber = ((Integer)v.get(1)).intValue(); |
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v = DwgUtil.testBit(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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weight = ((Boolean)v.get(1)).booleanValue(); |
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} else {
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System.out.println("ERROR: Escenario desconocido"); |
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} |
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if (knotsNumber>0) { |
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double[] knotpts = new double[knotsNumber]; |
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for (int i=0;i<knotsNumber;i++) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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knotpts[i] = ((Double)v.get(1)).doubleValue(); |
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} |
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knotPoints = knotpts; |
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} |
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if (controlPointsNumber>0) { |
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// Si el n?mero de weights no coincide con el de ctrlpts habr? problemas ...
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double[][] ctrlpts = new double[controlPointsNumber][3]; |
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double[] weights = new double[controlPointsNumber]; |
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for (int i=0;i<controlPointsNumber;i++) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double x = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double y = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double z = ((Double)v.get(1)).doubleValue(); |
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//double[] coord = new double[]{x, y, z};
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ctrlpts[i][0] = x;
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ctrlpts[i][1] = y;
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ctrlpts[i][2] = z;
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if (weight) {
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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weights[i] = ((Double)v.get(1)).doubleValue(); |
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} |
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} |
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controlPoints = ctrlpts; |
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if (weight) {
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this.weights = weights;
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} |
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} |
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if (fitPointsNumber>0) { |
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double[][] fitpts = new double[fitPointsNumber][3]; |
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for (int i=0;i<fitPointsNumber;i++) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double x = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double y = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double z = ((Double)v.get(1)).doubleValue(); |
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fitpts[i][0] = x;
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fitpts[i][1] = y;
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fitpts[i][2] = z;
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} |
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fitPoints = fitpts; |
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} |
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bitPos = readObjectTailV15(data, bitPos); |
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} |
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/**
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* @return Returns the closed.
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*/
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public boolean isClosed() { |
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return closed;
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} |
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/**
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* @param closed The closed to set.
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*/
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public void setClosed(boolean closed) { |
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this.closed = closed;
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} |
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/**
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* @return Returns the controlPoints.
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*/
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public double[][] getControlPoints() { |
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return controlPoints;
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} |
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/**
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* @param controlPoints The controlPoints to set.
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*/
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public void setControlPoints(double[][] controlPoints) { |
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this.controlPoints = controlPoints;
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} |
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/**
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* @return Returns the fitPoints.
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*/
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public double[][] getFitPoints() { |
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return fitPoints;
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} |
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/**
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* @param fitPoints The fitPoints to set.
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*/
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public void setFitPoints(double[][] fitPoints) { |
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this.fitPoints = fitPoints;
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} |
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/**
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* @return Returns the knotPoints.
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*/
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public double[] getKnotPoints() { |
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return knotPoints;
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} |
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/**
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* @param knotPoints The knotPoints to set.
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*/
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public void setKnotPoints(double[] knotPoints) { |
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this.knotPoints = knotPoints;
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} |
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/**
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* @return Returns the scenario.
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*/
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public int getScenario() { |
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return scenario;
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} |
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/**
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* @param scenario The scenario to set.
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*/
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public void setScenario(int scenario) { |
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this.scenario = scenario;
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} |
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/* (non-Javadoc)
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* @see java.lang.Object#clone()
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*/
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public Object clone() { |
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DwgSpline dwgSpline = new DwgSpline(index);
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dwgSpline.setType(type); |
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dwgSpline.setHandle(handle); |
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dwgSpline.setVersion(version); |
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dwgSpline.setMode(mode); |
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dwgSpline.setLayerHandle(layerHandle); |
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dwgSpline.setColor(color); |
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dwgSpline.setNumReactors(numReactors); |
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dwgSpline.setNoLinks(noLinks); |
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dwgSpline.setLinetypeFlags(linetypeFlags); |
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dwgSpline.setPlotstyleFlags(plotstyleFlags); |
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dwgSpline.setSizeInBits(sizeInBits); |
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dwgSpline.setExtendedData(extendedData); |
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dwgSpline.setGraphicData(graphicData); |
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//dwgSpline.setInsideBlock(insideBlock);
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dwgSpline.setScenario(scenario); |
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dwgSpline.setDegree(degree); |
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dwgSpline.setFitTolerance(fitTolerance); |
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dwgSpline.setBeginTanVector(beginTanVector); |
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dwgSpline.setEndTanVector(endTanVector); |
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dwgSpline.setRational(rational); |
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dwgSpline.setClosed(closed); |
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dwgSpline.setPeriodic(periodic); |
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dwgSpline.setKnotTolerance(knotTolerance); |
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dwgSpline.setControlTolerance(controlTolerance); |
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dwgSpline.setKnotPoints(knotPoints); |
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dwgSpline.setControlPoints(controlPoints); |
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dwgSpline.setWeights(weights); |
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dwgSpline.setFitPoints(fitPoints); |
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return dwgSpline;
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} |
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/**
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* @return Returns the beginTanVector.
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*/
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public double[] getBeginTanVector() { |
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return beginTanVector;
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} |
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/**
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* @param beginTanVector The beginTanVector to set.
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*/
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public void setBeginTanVector(double[] beginTanVector) { |
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this.beginTanVector = beginTanVector;
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} |
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/**
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* @return Returns the controlTolerance.
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*/
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public double getControlTolerance() { |
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return controlTolerance;
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} |
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/**
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* @param controlTolerance The controlTolerance to set.
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*/
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public void setControlTolerance(double controlTolerance) { |
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this.controlTolerance = controlTolerance;
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} |
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/**
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* @return Returns the degree.
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*/
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public int getDegree() { |
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return degree;
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} |
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/**
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* @param degree The degree to set.
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*/
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public void setDegree(int degree) { |
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this.degree = degree;
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} |
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/**
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* @return Returns the endTanVector.
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*/
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public double[] getEndTanVector() { |
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return endTanVector;
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} |
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/**
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* @param endTanVector The endTanVector to set.
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*/
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public void setEndTanVector(double[] endTanVector) { |
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this.endTanVector = endTanVector;
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} |
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/**
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* @return Returns the fitTolerance.
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*/
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public double getFitTolerance() { |
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return fitTolerance;
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} |
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/**
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* @param fitTolerance The fitTolerance to set.
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*/
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public void setFitTolerance(double fitTolerance) { |
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this.fitTolerance = fitTolerance;
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} |
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/**
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* @return Returns the knotTolerance.
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*/
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public double getKnotTolerance() { |
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return knotTolerance;
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} |
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/**
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* @param knotTolerance The knotTolerance to set.
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*/
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public void setKnotTolerance(double knotTolerance) { |
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this.knotTolerance = knotTolerance;
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} |
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/**
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* @return Returns the periodic.
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*/
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public boolean isPeriodic() { |
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return periodic;
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} |
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/**
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* @param periodic The periodic to set.
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*/
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public void setPeriodic(boolean periodic) { |
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this.periodic = periodic;
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} |
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/**
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* @return Returns the rational.
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*/
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public boolean isRational() { |
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return rational;
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} |
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/**
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* @param rational The rational to set.
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*/
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public void setRational(boolean rational) { |
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this.rational = rational;
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} |
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/**
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* @return Returns the weights.
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*/
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public double[] getWeights() { |
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return weights;
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} |
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/**
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* @param weights The weights to set.
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*/
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public void setWeights(double[] weights) { |
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this.weights = weights;
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.jdwglib.dwg.IDwg3DTestable#has3DData()
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*/
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public boolean has3DData() { |
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double[][] pts = getControlPoints(); |
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if(pts == null) |
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return false; |
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double z = 0d; |
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for (int j=0;j<pts.length;j++) { |
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z = pts[j][2];
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if (z != 0.0) |
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return true; |
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}//for
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return false; |
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} |
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} |