svn-gvsig-desktop / branches / CqCMSDvp / libraries / libCq CMS for java.old / src / org / cresques / px / dxf / DxfCalXtru.java @ 2768
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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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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* cresques@gmail.com
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*/
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package org.cresques.px.dxf; |
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import org.cresques.geo.Point3D; |
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import java.lang.Math; |
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/**
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* La clase DxfCalXtru se emplea para aplicar los par?metros de extrusi?n de las
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* entidades de un DXF. Esta transformaci?n provoca alteraciones en las coordenadas de
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* estos elementos.
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* @author jmorell
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*/
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public class DxfCalXtru { |
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/**
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* Aplica a un punto en 3D sus correspondientes par?metros de extrusi?n.
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* @param coord_in, punto antes de aplicar la extrusi?n.
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* @param xtru, par?metros de extrusi?n en X, en Y y en Z.
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* @return Point3D, punto 3D afectado de extrusi?n.
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*/
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public static Point3D CalculateXtru(Point3D coord_in, Point3D xtru) { |
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Point3D coord_out = new Point3D();
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double dxt0 = 0D; |
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double dyt0 = 0D; |
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double dzt0 = 0D; |
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double dvx1;
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double dvx2;
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double dvx3;
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double dvy1;
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double dvy2;
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double dvy3;
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double dmod;
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double dxt;
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double dyt;
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double dzt;
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double aux = 1D / 64D; //LWS |
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double aux1 = Math.abs(xtru.getX()); |
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double aux2 = Math.abs(xtru.getY()); |
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dxt0 = coord_in.getX(); |
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dyt0 = coord_in.getY(); |
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dzt0 = coord_in.getZ(); |
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double xtruX;
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double xtruY;
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double xtruZ;
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xtruX = xtru.getX(); |
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xtruY = xtru.getY(); |
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xtruZ = xtru.getZ(); |
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if ((aux1 < aux) && (aux2 < aux)) {
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dmod = Math.sqrt((xtruZ * xtruZ) + (xtruX * xtruX));
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dvx1 = xtruZ / dmod; |
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dvx2 = 0;
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dvx3 = -xtruX / dmod; |
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} else {
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dmod = Math.sqrt((xtruY * xtruY) + (xtruX * xtruX));
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dvx1 = -xtruY / dmod; |
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dvx2 = xtruX / dmod; |
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dvx3 = 0;
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} |
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dvy1 = (xtruY * dvx3) - (xtruZ * dvx2); |
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dvy2 = (xtruZ * dvx1) - (xtruX * dvx3); |
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dvy3 = (xtruX * dvx2) - (xtruY * dvx1); |
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dmod = Math.sqrt((dvy1 * dvy1) + (dvy2 * dvy2) + (dvy3 * dvy3));
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dvy1 = dvy1 / dmod; |
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dvy2 = dvy2 / dmod; |
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dvy3 = dvy3 / dmod; |
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dxt = (dvx1 * dxt0) + (dvy1 * dyt0) + (xtruX * dzt0); |
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dyt = (dvx2 * dxt0) + (dvy2 * dyt0) + (xtruY * dzt0); |
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dzt = (dvx3 * dxt0) + (dvy3 * dyt0) + (xtruZ * dzt0); |
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coord_out.setLocation(dxt, dyt, dzt); |
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//coord_out.z = dzt;
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dxt0 = 0;
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dyt0 = 0;
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dzt0 = 0;
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return coord_out;
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} |
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/**
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* Devuelve el coseno de un ?ngulo introducido en grados sexagesimales.
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* @param alfa, ?ngulo.
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* @return double, valor del coseno.
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*/
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public static double cosDeg(double alfa) { |
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final double toRad = Math.PI / (double) 180.0; |
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return Math.cos(alfa * toRad); |
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} |
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/**
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* Devuelve el seno de un ?ngulo introducido en grados sexagesimales.
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* @param alfa, ?ngulo.
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* @return double, valor del seno.
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*/
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public static double sinDeg(double alfa) { |
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final double toRad = Math.PI / (double) 180.0; |
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return Math.sin(alfa * toRad); |
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} |
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} |