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Chenwenxuan
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lib/engine/rs_dimlinear.cpp Normal file
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/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program 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 General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#include<iostream>
#include<cmath>
#include "rs_dimlinear.h"
#include "rs_line.h"
#include "rs_constructionline.h"
#include "rs_mtext.h"
#include "rs_solid.h"
#include "rs_graphic.h"
#include "rs_math.h"
#include "rs_debug.h"
RS_DimLinearData::RS_DimLinearData():
extensionPoint1(false),
extensionPoint2(false),
angle(0.0),
oblique(0.0)
{}
RS_DimLinearData::RS_DimLinearData(const RS_Vector& _extensionPoint1,
const RS_Vector& _extensionPoint2,
double _angle, double _oblique):
extensionPoint1(_extensionPoint1)
,extensionPoint2(_extensionPoint2)
,angle(_angle)
,oblique(_oblique)
{
}
std::ostream& operator << (std::ostream& os,
const RS_DimLinearData& dd) {
os << "(" << dd.extensionPoint1 << ","
<< dd.extensionPoint1 <<','
<< dd.angle <<','
<< dd.oblique <<','
<<")";
return os;
}
/**
* Constructor.
*
* @para parent Parent Entity Container.
* @para d Common dimension geometrical data.
* @para ed Extended geometrical data for linear dimension.
*/
RS_DimLinear::RS_DimLinear(RS_EntityContainer* parent,
const RS_DimensionData& d,
const RS_DimLinearData& ed)
: RS_Dimension(parent, d), edata(ed) {
calculateBorders();
}
RS_Entity* RS_DimLinear::clone() const {
RS_DimLinear* d = new RS_DimLinear(*this);
d->setOwner(isOwner());
d->initId();
d->detach();
return d;
}
RS_VectorSolutions RS_DimLinear::getRefPoints() const
{
return RS_VectorSolutions({edata.extensionPoint1, edata.extensionPoint2,
data.definitionPoint, data.middleOfText});
}
void RS_DimLinear::setAngle(double a) {
edata.angle = RS_Math::correctAngle(a);
}
/**
* @return Automatically created label for the default
* measurement of this dimension.
*/
QString RS_DimLinear::getMeasuredLabel() {
// direction of dimension line
RS_Vector dirDim = RS_Vector::polar(100.0, edata.angle);
// construction line for dimension line
RS_ConstructionLine dimLine(nullptr,
RS_ConstructionLineData(data.definitionPoint,
data.definitionPoint + dirDim));
RS_Vector dimP1 = dimLine.getNearestPointOnEntity(edata.extensionPoint1);
RS_Vector dimP2 = dimLine.getNearestPointOnEntity(edata.extensionPoint2);
// Definitive dimension line:
double dist = dimP1.distanceTo(dimP2) * getGeneralFactor();
RS_Graphic* graphic = getGraphic();
QString ret;
if (graphic) {
int dimlunit = getGraphicVariableInt("$DIMLUNIT", 2);
int dimdec = getGraphicVariableInt("$DIMDEC", 4);
int dimzin = getGraphicVariableInt("$DIMZIN", 1);
RS2::LinearFormat format = graphic->getLinearFormat(dimlunit);
ret = RS_Units::formatLinear(dist, RS2::None, format, dimdec);
if (format == RS2::Decimal)
ret = stripZerosLinear(ret, dimzin);
//verify if units are decimal and comma separator
if (format == RS2::Decimal || format == RS2::ArchitecturalMetric){
if (getGraphicVariableInt("$DIMDSEP", 0) == 44)
ret.replace(QChar('.'), QChar(','));
}
}
else {
ret = QString("%1").arg(dist);
}
return ret;
}
bool RS_DimLinear::hasEndpointsWithinWindow(const RS_Vector& v1, const RS_Vector& v2) {
return (edata.extensionPoint1.isInWindow(v1, v2) ||
edata.extensionPoint2.isInWindow(v1, v2));
}
/**
* Updates the sub entities of this dimension. Called when the
* text or the position, alignment, .. changes.
*
* @param autoText Automatically reposition the text label
*/
void RS_DimLinear::updateDim(bool autoText) {
RS_DEBUG->print("RS_DimLinear::update");
clear();
if (isUndone()) {
return;
}
// general scale (DIMSCALE)
double dimscale = getGeneralScale();
// distance from entities (DIMEXO)
double dimexo = getExtensionLineOffset()*dimscale;
// extension line extension (DIMEXE)
double dimexe = getExtensionLineExtension()*dimscale;
// direction of dimension line
RS_Vector dirDim = RS_Vector::polar(100.0, edata.angle);
// construction line for dimension line
RS_ConstructionLine dimLine(
nullptr,
RS_ConstructionLineData(data.definitionPoint,
data.definitionPoint + dirDim));
RS_Vector dimP1 = dimLine.getNearestPointOnEntity(edata.extensionPoint1);
RS_Vector dimP2 = dimLine.getNearestPointOnEntity(edata.extensionPoint2);
// Definitive dimension line:
updateCreateDimensionLine(dimP1, dimP2, true, true, autoText);
/*
ld = RS_LineData(data.definitionPoint, dimP1);
RS_Line* dimensionLine = new RS_Line(this, ld);
addEntity(dimensionLine);
*/
double extAngle1, extAngle2;
if ((edata.extensionPoint1-dimP1).magnitude()<1e-6) {
if ((edata.extensionPoint2-dimP2).magnitude()<1e-6) {
//boot extension points are in dimension line only rotate 90
extAngle2 = edata.angle + (M_PI_2);
} else {
//first extension point are in dimension line use second
extAngle2 = edata.extensionPoint2.angleTo(dimP2);
}
extAngle1 = extAngle2;
} else {
//first extension point not are in dimension line use it
extAngle1 = edata.extensionPoint1.angleTo(dimP1);
if ((edata.extensionPoint2-dimP2).magnitude()<1e-6)
extAngle2 = extAngle1;
else
extAngle2 = edata.extensionPoint2.angleTo(dimP2);
}
RS_Vector vDimexe1 = RS_Vector::polar(dimexe, extAngle1);
RS_Vector vDimexe2 = RS_Vector::polar(dimexe, extAngle2);
RS_Vector vDimexo1, vDimexo2;
if (getFixedLengthOn()){
double dimfxl = getFixedLength()*dimscale;
double extLength = (edata.extensionPoint1-dimP1).magnitude();
if (extLength-dimexo > dimfxl)
vDimexo1.setPolar(extLength - dimfxl, extAngle1);
extLength = (edata.extensionPoint2-dimP2).magnitude();
if (extLength-dimexo > dimfxl)
vDimexo2.setPolar(extLength - dimfxl, extAngle2);
} else {
vDimexo1.setPolar(dimexo, extAngle1);
vDimexo2.setPolar(dimexo, extAngle2);
}
RS_Pen pen(getExtensionLineColor(),
getExtensionLineWidth(),
RS2::LineByBlock);
// extension lines:
RS_Line* line = new RS_Line{this,
edata.extensionPoint1+vDimexo1, dimP1+vDimexe1};
line->setPen(pen);
// line->setPen(RS_Pen(RS2::FlagInvalid));
line->setLayer(nullptr);
addEntity(line);
//data.definitionPoint+vDimexe2);
line = new RS_Line{this,
edata.extensionPoint2+vDimexo2, dimP2+vDimexe2};
line->setPen(pen);
// line->setPen(RS_Pen(RS2::FlagInvalid));
line->setLayer(nullptr);
addEntity(line);
calculateBorders();
}
void RS_DimLinear::move(const RS_Vector& offset) {
RS_Dimension::move(offset);
edata.extensionPoint1.move(offset);
edata.extensionPoint2.move(offset);
update();
}
void RS_DimLinear::rotate(const RS_Vector& center, const double& angle) {
RS_Vector angleVector(angle);
RS_Dimension::rotate(center, angleVector);
edata.extensionPoint1.rotate(center, angleVector);
edata.extensionPoint2.rotate(center, angleVector);
edata.angle = RS_Math::correctAngle(edata.angle+angle);
update();
}
void RS_DimLinear::rotate(const RS_Vector& center, const RS_Vector& angleVector) {
RS_Dimension::rotate(center, angleVector);
edata.extensionPoint1.rotate(center, angleVector);
edata.extensionPoint2.rotate(center, angleVector);
edata.angle = RS_Math::correctAngle(edata.angle+angleVector.angle());
update();
}
void RS_DimLinear::scale(const RS_Vector& center, const RS_Vector& factor) {
RS_Dimension::scale(center, factor);
edata.extensionPoint1.scale(center, factor);
edata.extensionPoint2.scale(center, factor);
update();
}
void RS_DimLinear::mirror(const RS_Vector& axisPoint1, const RS_Vector& axisPoint2) {
RS_Dimension::mirror(axisPoint1, axisPoint2);
edata.extensionPoint1.mirror(axisPoint1, axisPoint2);
edata.extensionPoint2.mirror(axisPoint1, axisPoint2);
RS_Vector vec;
vec.setPolar(1.0, edata.angle);
vec.mirror(RS_Vector(0.0,0.0), axisPoint2-axisPoint1);
edata.angle = vec.angle();
update();
}
void RS_DimLinear::stretch(const RS_Vector& firstCorner,
const RS_Vector& secondCorner,
const RS_Vector& offset) {
//e->calculateBorders();
if (getMin().isInWindow(firstCorner, secondCorner) &&
getMax().isInWindow(firstCorner, secondCorner)) {
move(offset);
} else {
//RS_Vector v = data.definitionPoint - edata.extensionPoint2;
//double len = edata.extensionPoint2.distanceTo(data.definitionPoint);
//double ang1 = edata.extensionPoint1.angleTo(edata.extensionPoint2)
// + M_PI_2;
if (edata.extensionPoint1.isInWindow(firstCorner,
secondCorner)) {
edata.extensionPoint1.move(offset);
}
if (edata.extensionPoint2.isInWindow(firstCorner,
secondCorner)) {
edata.extensionPoint2.move(offset);
}
/*
double ang2 = edata.extensionPoint1.angleTo(edata.extensionPoint2)
+ M_PI_2;
double diff = RS_Math::getAngleDifference(ang1, ang2);
if (diff>M_PI) {
diff-=2*M_PI;
}
if (fabs(diff)>M_PI_2) {
ang2 = RS_Math::correctAngle(ang2+M_PI);
}
RS_Vector v;
v.setPolar(len, ang2);
data.definitionPoint = edata.extensionPoint2 + v;
*/
}
updateDim(true);
}
void RS_DimLinear::moveRef(const RS_Vector& ref, const RS_Vector& offset) {
if (ref.distanceTo(data.definitionPoint)<1.0e-4) {
data.definitionPoint += offset;
updateDim(true);
}
else if (ref.distanceTo(data.middleOfText)<1.0e-4) {
data.middleOfText += offset;
updateDim(false);
}
else if (ref.distanceTo(edata.extensionPoint1)<1.0e-4) {
edata.extensionPoint1 += offset;
updateDim(true);
}
else if (ref.distanceTo(edata.extensionPoint2)<1.0e-4) {
edata.extensionPoint2 += offset;
updateDim(true);
}
}
/**
* Dumps the point's data to stdout.
*/
std::ostream& operator << (std::ostream& os, const RS_DimLinear& d) {
os << " DimLinear: " << d.getData() << "\n" << d.getEData() << "\n";
return os;
}