/
CommandCreateGeo.cpp
3120 lines (2777 loc) · 121 KB
/
CommandCreateGeo.cpp
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/***************************************************************************
* Copyright (c) 2010 Jürgen Riegel (juergen.riegel@web.de) *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* 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; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <Inventor/nodes/SoPickStyle.h>
# include <QApplication>
#endif
#include <boost/math/special_functions/fpclassify.hpp>
#include <Base/Console.h>
#include <Gui/Action.h>
#include <Gui/Application.h>
#include <Gui/BitmapFactory.h>
#include <Gui/Document.h>
#include <Gui/Command.h>
#include <Gui/MainWindow.h>
#include <Gui/DlgEditFileIncludeProptertyExternal.h>
#include <Gui/Selection.h>
#include <Gui/SelectionFilter.h>
#include <Mod/Sketcher/App/SketchObject.h>
#include "ViewProviderSketch.h"
#include "DrawSketchHandler.h"
#include <Gui/View3DInventor.h>
#include <Gui/View3DInventorViewer.h>
#include <Gui/SoFCUnifiedSelection.h>
using namespace std;
using namespace SketcherGui;
/* helper functions ======================================================*/
// Return counter-clockwise angle from horizontal out of p1 to p2 in radians.
double GetPointAngle (const Base::Vector2D &p1, const Base::Vector2D &p2)
{
double dX = p2.fX - p1.fX;
double dY = p2.fY - p1.fY;
return dY >= 0 ? atan2(dY, dX) : atan2(dY, dX) + 2*M_PI;
}
/*
Find the centerpoint of a circle drawn through any 3 points:
Given points p1-3, draw 2 lines: S12 and S23 which each connect two points. From the
midpoint of each line, draw a perpendicular line (S12p/S23p) across the circle. These
lines will cross at the centerpoint.
Mathematically, line S12 will have a slope of m12 which can be determined. Therefore,
the slope m12p is -1/m12. Line S12p will have an equation of y = m12p*x + b12p. b12p can
be solved for using the midpoint of the line. This can be done for both lines. Since
both S12p and S23p cross at the centerpoint, solving the two equations together will give
the location of the centerpoint.
*/
Base::Vector2D GetCircleCenter (const Base::Vector2D &p1, const Base::Vector2D &p2, const Base::Vector2D &p3)
{
double m12p = (p1.fX - p2.fX) / (p2.fY - p1.fY);
double m23p = (p2.fX - p3.fX) / (p3.fY - p2.fY);
double x = 1/( 2*(m12p - m23p) ) * ( m12p*(p1.fX + p2.fX) -
m23p*(p2.fX + p3.fX) +
p3.fY - p1.fY );
double y = m12p * ( x - (p1.fX + p2.fX)/2 ) + (p1.fY + p2.fY)/2;
return Base::Vector2D(x, y);
}
void ActivateHandler(Gui::Document *doc,DrawSketchHandler *handler)
{
if (doc) {
if (doc->getInEdit() && doc->getInEdit()->isDerivedFrom
(SketcherGui::ViewProviderSketch::getClassTypeId()))
dynamic_cast<SketcherGui::ViewProviderSketch*>
(doc->getInEdit())->activateHandler(handler);
}
}
bool isCreateGeoActive(Gui::Document *doc)
{
if (doc) {
// checks if a Sketch Viewprovider is in Edit and is in no special mode
if (doc->getInEdit() && doc->getInEdit()->isDerivedFrom
(SketcherGui::ViewProviderSketch::getClassTypeId())) {
if (dynamic_cast<SketcherGui::ViewProviderSketch*>(doc->getInEdit())->
getSketchMode() == ViewProviderSketch::STATUS_NONE)
return true;
}
}
return false;
}
SketcherGui::ViewProviderSketch* getSketchViewprovider(Gui::Document *doc)
{
if (doc) {
if (doc->getInEdit() && doc->getInEdit()->isDerivedFrom
(SketcherGui::ViewProviderSketch::getClassTypeId()) )
return dynamic_cast<SketcherGui::ViewProviderSketch*>(doc->getInEdit());
}
return 0;
}
/* Sketch commands =======================================================*/
/* XPM */
static const char *cursor_createline[]={
"32 32 3 1",
"+ c white",
"# c red",
". c None",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"................................",
"+++++...+++++...................",
"................................",
"......+...............###.......",
"......+...............#.#.......",
"......+...............###.......",
"......+..............#..........",
"......+.............#...........",
"....................#...........",
"...................#............",
"..................#.............",
"..................#.............",
".................#..............",
"................#...............",
"................#...............",
"...............#................",
"..............#.................",
"..............#.................",
".............#..................",
"..........###...................",
"..........#.#...................",
"..........###...................",
"................................",
"................................",
"................................",
"................................",
"................................"};
class DrawSketchHandlerLine: public DrawSketchHandler
{
public:
DrawSketchHandlerLine():Mode(STATUS_SEEK_First),EditCurve(2){}
virtual ~DrawSketchHandlerLine(){}
/// mode table
enum SelectMode {
STATUS_SEEK_First, /**< enum value ----. */
STATUS_SEEK_Second, /**< enum value ----. */
STATUS_End
};
virtual void activated(ViewProviderSketch *sketchgui)
{
setCursor(QPixmap(cursor_createline),7,7);
}
virtual void mouseMove(Base::Vector2D onSketchPos)
{
if (Mode==STATUS_SEEK_First) {
setPositionText(onSketchPos);
if (seekAutoConstraint(sugConstr1, onSketchPos, Base::Vector2D(0.f,0.f))) {
renderSuggestConstraintsCursor(sugConstr1);
return;
}
}
else if (Mode==STATUS_SEEK_Second){
float length = (onSketchPos - EditCurve[0]).Length();
float angle = (onSketchPos - EditCurve[0]).GetAngle(Base::Vector2D(1.f,0.f));
SbString text;
text.sprintf(" (%.1f,%.1fdeg)", length, angle * 180 / M_PI);
setPositionText(onSketchPos, text);
EditCurve[1] = onSketchPos;
sketchgui->drawEdit(EditCurve);
if (seekAutoConstraint(sugConstr2, onSketchPos, onSketchPos - EditCurve[0])) {
renderSuggestConstraintsCursor(sugConstr2);
return;
}
}
applyCursor();
}
virtual bool pressButton(Base::Vector2D onSketchPos)
{
if (Mode==STATUS_SEEK_First){
EditCurve[0] = onSketchPos;
Mode = STATUS_SEEK_Second;
}
else {
EditCurve[1] = onSketchPos;
sketchgui->drawEdit(EditCurve);
Mode = STATUS_End;
}
return true;
}
virtual bool releaseButton(Base::Vector2D onSketchPos)
{
if (Mode==STATUS_End){
unsetCursor();
resetPositionText();
Gui::Command::openCommand("Add sketch line");
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addGeometry(Part.Line(App.Vector(%f,%f,0),App.Vector(%f,%f,0)))",
sketchgui->getObject()->getNameInDocument(),
EditCurve[0].fX,EditCurve[0].fY,EditCurve[1].fX,EditCurve[1].fY);
Gui::Command::commitCommand();
Gui::Command::updateActive();
// add auto constraints for the line segment start
if (sugConstr1.size() > 0) {
createAutoConstraints(sugConstr1, getHighestCurveIndex(), Sketcher::start);
sugConstr1.clear();
}
// add auto constraints for the line segment end
if (sugConstr2.size() > 0) {
createAutoConstraints(sugConstr2, getHighestCurveIndex(), Sketcher::end);
sugConstr2.clear();
}
EditCurve.clear();
sketchgui->drawEdit(EditCurve);
sketchgui->purgeHandler(); // no code after this line, Handler get deleted in ViewProvider
}
return true;
}
protected:
SelectMode Mode;
std::vector<Base::Vector2D> EditCurve;
std::vector<AutoConstraint> sugConstr1, sugConstr2;
};
DEF_STD_CMD_A(CmdSketcherCreateLine);
CmdSketcherCreateLine::CmdSketcherCreateLine()
: Command("Sketcher_CreateLine")
{
sAppModule = "Sketcher";
sGroup = QT_TR_NOOP("Sketcher");
sMenuText = QT_TR_NOOP("Create line");
sToolTipText = QT_TR_NOOP("Create a line in the sketch");
sWhatsThis = sToolTipText;
sStatusTip = sToolTipText;
sPixmap = "Sketcher_CreateLine";
sAccel = "L";
eType = ForEdit;
}
void CmdSketcherCreateLine::activated(int iMsg)
{
ActivateHandler(getActiveGuiDocument(),new DrawSketchHandlerLine() );
}
bool CmdSketcherCreateLine::isActive(void)
{
return isCreateGeoActive(getActiveGuiDocument());
}
/* Create Box =======================================================*/
/* XPM */
static const char *cursor_createbox[]={
"32 32 3 1",
"+ c white",
"# c red",
". c None",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"................................",
"+++++...+++++...................",
"................................",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"................................",
"................................",
"..........................###...",
"...........################.#...",
"...........#..............###...",
"...........#...............#....",
"...........#...............#....",
"...........#...............#....",
"...........#...............#....",
"...........#...............#....",
"...........#...............#....",
"..........###..............#....",
"..........#.################....",
"..........###...................",
"................................",
"................................",
"................................",
"................................",
"................................"};
class DrawSketchHandlerBox: public DrawSketchHandler
{
public:
DrawSketchHandlerBox():Mode(STATUS_SEEK_First),EditCurve(5){}
virtual ~DrawSketchHandlerBox(){}
/// mode table
enum BoxMode {
STATUS_SEEK_First, /**< enum value ----. */
STATUS_SEEK_Second, /**< enum value ----. */
STATUS_End
};
virtual void activated(ViewProviderSketch *sketchgui)
{
setCursor(QPixmap(cursor_createbox),7,7);
}
virtual void mouseMove(Base::Vector2D onSketchPos)
{
if (Mode==STATUS_SEEK_First) {
setPositionText(onSketchPos);
if (seekAutoConstraint(sugConstr1, onSketchPos, Base::Vector2D(0.f,0.f))) {
renderSuggestConstraintsCursor(sugConstr1);
return;
}
}
else if (Mode==STATUS_SEEK_Second) {
float dx = onSketchPos.fX - EditCurve[0].fX;
float dy = onSketchPos.fY - EditCurve[0].fY;
SbString text;
text.sprintf(" (%.1f x %.1f)", dx, dy);
setPositionText(onSketchPos, text);
EditCurve[2] = onSketchPos;
EditCurve[1] = Base::Vector2D(onSketchPos.fX ,EditCurve[0].fY);
EditCurve[3] = Base::Vector2D(EditCurve[0].fX,onSketchPos.fY);
sketchgui->drawEdit(EditCurve);
if (seekAutoConstraint(sugConstr2, onSketchPos, Base::Vector2D(0.0,0.0))) {
renderSuggestConstraintsCursor(sugConstr2);
return;
}
}
applyCursor();
}
virtual bool pressButton(Base::Vector2D onSketchPos)
{
if (Mode==STATUS_SEEK_First){
EditCurve[0] = onSketchPos;
EditCurve[4] = onSketchPos;
Mode = STATUS_SEEK_Second;
}
else {
EditCurve[2] = onSketchPos;
EditCurve[1] = Base::Vector2D(onSketchPos.fX ,EditCurve[0].fY);
EditCurve[3] = Base::Vector2D(EditCurve[0].fX,onSketchPos.fY);
sketchgui->drawEdit(EditCurve);
Mode = STATUS_End;
}
return true;
}
virtual bool releaseButton(Base::Vector2D onSketchPos)
{
if (Mode==STATUS_End){
unsetCursor();
resetPositionText();
Gui::Command::openCommand("Add sketch box");
int firstCurve = getHighestCurveIndex() + 1;
// add the four line geos
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addGeometry(Part.Line(App.Vector(%f,%f,0),App.Vector(%f,%f,0)))",
sketchgui->getObject()->getNameInDocument(),
EditCurve[0].fX,EditCurve[0].fY,EditCurve[1].fX,EditCurve[1].fY);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addGeometry(Part.Line(App.Vector(%f,%f,0),App.Vector(%f,%f,0)))",
sketchgui->getObject()->getNameInDocument(),
EditCurve[1].fX,EditCurve[1].fY,EditCurve[2].fX,EditCurve[2].fY);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addGeometry(Part.Line(App.Vector(%f,%f,0),App.Vector(%f,%f,0)))",
sketchgui->getObject()->getNameInDocument(),
EditCurve[2].fX,EditCurve[2].fY,EditCurve[3].fX,EditCurve[3].fY);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addGeometry(Part.Line(App.Vector(%f,%f,0),App.Vector(%f,%f,0)))",
sketchgui->getObject()->getNameInDocument(),
EditCurve[3].fX,EditCurve[3].fY,EditCurve[0].fX,EditCurve[0].fY);
// add the four coincidents to ty them together
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Coincident',%i,2,%i,1)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve,firstCurve+1);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Coincident',%i,2,%i,1)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve+1,firstCurve+2);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Coincident',%i,2,%i,1)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve+2,firstCurve+3);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Coincident',%i,2,%i,1)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve+3,firstCurve);
// add the horizontal constraints
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Horizontal',%i)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Horizontal',%i)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve+2);
// add the vertical constraints
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Vertical',%i)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve+1);
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Vertical',%i)) "
,sketchgui->getObject()->getNameInDocument()
,firstCurve+3);
Gui::Command::commitCommand();
Gui::Command::updateActive();
// add auto constraints at the start of the first side
if (sugConstr1.size() > 0) {
createAutoConstraints(sugConstr1, getHighestCurveIndex() - 3 , Sketcher::start);
sugConstr1.clear();
}
// add auto constraints at the end of the second side
if (sugConstr2.size() > 0) {
createAutoConstraints(sugConstr2, getHighestCurveIndex() - 2, Sketcher::end);
sugConstr2.clear();
}
EditCurve.clear();
sketchgui->drawEdit(EditCurve);
sketchgui->purgeHandler(); // no code after this line, Handler get deleted in ViewProvider
}
return true;
}
protected:
BoxMode Mode;
std::vector<Base::Vector2D> EditCurve;
std::vector<AutoConstraint> sugConstr1, sugConstr2;
};
DEF_STD_CMD_A(CmdSketcherCreateRectangle);
CmdSketcherCreateRectangle::CmdSketcherCreateRectangle()
: Command("Sketcher_CreateRectangle")
{
sAppModule = "Sketcher";
sGroup = QT_TR_NOOP("Sketcher");
sMenuText = QT_TR_NOOP("Create rectangle");
sToolTipText = QT_TR_NOOP("Create a rectangle in the sketch");
sWhatsThis = sToolTipText;
sStatusTip = sToolTipText;
sPixmap = "Sketcher_CreateRectangle";
sAccel = "R";
eType = ForEdit;
}
void CmdSketcherCreateRectangle::activated(int iMsg)
{
ActivateHandler(getActiveGuiDocument(),new DrawSketchHandlerBox() );
}
bool CmdSketcherCreateRectangle::isActive(void)
{
return isCreateGeoActive(getActiveGuiDocument());
}
// ======================================================================================
/* XPM */
static const char *cursor_createlineset[]={
"32 32 3 1",
"+ c white",
"# c red",
". c None",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"......+.........................",
"................................",
"+++++...+++++...................",
"................................",
"......+...............###.......",
"......+...............#.#.......",
"......+...............###.......",
"......+..............#..#.......",
"......+.............#....#......",
"....................#....#......",
"...................#......#.....",
"..................#.......#.....",
"..................#........#....",
".................#.........#....",
"................#..........###..",
"................#..........#.#..",
"......#........#...........###..",
".......#......#.................",
"........#.....#.................",
".........#...#..................",
"..........###...................",
"..........#.#...................",
"..........###...................",
"................................",
"................................",
"................................",
"................................",
"................................"};
class DrawSketchHandlerLineSet: public DrawSketchHandler
{
public:
DrawSketchHandlerLineSet()
: Mode(STATUS_SEEK_First),SegmentMode(SEGMENT_MODE_Line),
TransitionMode(TRANSITION_MODE_Free),suppressTransition(false),EditCurve(2),
firstCurve(-1),previousCurve(-1),
firstPosId(Sketcher::none),previousPosId(Sketcher::none) {}
virtual ~DrawSketchHandlerLineSet() {}
/// mode table
enum SELECT_MODE {
STATUS_SEEK_First, /**< enum value ----. */
STATUS_SEEK_Second, /**< enum value ----. */
STATUS_Do,
STATUS_Close
};
enum SEGMENT_MODE
{
SEGMENT_MODE_Arc,
SEGMENT_MODE_Line
};
enum TRANSITION_MODE
{
TRANSITION_MODE_Free,
TRANSITION_MODE_Tangent,
TRANSITION_MODE_Perpendicular_L,
TRANSITION_MODE_Perpendicular_R
};
virtual void registerPressedKey(bool pressed, int key)
{
if (Mode != STATUS_SEEK_Second)
return; // SegmentMode can be changed only in STATUS_SEEK_Second mode
if (key == SoKeyboardEvent::M && pressed && previousCurve != -1) {
// loop through the following modes:
// SEGMENT_MODE_Line, TRANSITION_MODE_Free / TRANSITION_MODE_Tangent
// SEGMENT_MODE_Line, TRANSITION_MODE_Perpendicular_L
// SEGMENT_MODE_Line, TRANSITION_MODE_Tangent / TRANSITION_MODE_Free
// SEGMENT_MODE_Arc, TRANSITION_MODE_Tangent
// SEGMENT_MODE_Arc, TRANSITION_MODE_Perpendicular_L
// SEGMENT_MODE_Arc, TRANSITION_MODE_Perpendicular_R
Base::Vector2D onSketchPos;
if (SegmentMode == SEGMENT_MODE_Line)
onSketchPos = EditCurve[EditCurve.size()-1];
else
onSketchPos = EditCurve[29];
const Part::Geometry *geom = sketchgui->getSketchObject()->getGeometry(previousCurve);
if (SegmentMode == SEGMENT_MODE_Line) {
switch (TransitionMode) {
case TRANSITION_MODE_Free:
if (geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId()) { // 3rd mode
SegmentMode = SEGMENT_MODE_Arc;
TransitionMode = TRANSITION_MODE_Tangent;
}
else // 1st mode
TransitionMode = TRANSITION_MODE_Perpendicular_L;
break;
case TRANSITION_MODE_Perpendicular_L: // 2nd mode
if (geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId())
TransitionMode = TRANSITION_MODE_Free;
else
TransitionMode = TRANSITION_MODE_Tangent;
break;
case TRANSITION_MODE_Tangent:
if (geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId()) // 1st mode
TransitionMode = TRANSITION_MODE_Perpendicular_L;
else { // 3rd mode
SegmentMode = SEGMENT_MODE_Arc;
TransitionMode = TRANSITION_MODE_Tangent;
}
break;
default: // unexpected mode
TransitionMode = TRANSITION_MODE_Free;
break;
}
}
else {
switch (TransitionMode) {
case TRANSITION_MODE_Tangent: // 4th mode
TransitionMode = TRANSITION_MODE_Perpendicular_L;
break;
case TRANSITION_MODE_Perpendicular_L: // 5th mode
TransitionMode = TRANSITION_MODE_Perpendicular_R;
break;
default: // 6th mode (Perpendicular_R) + unexpexted mode
SegmentMode = SEGMENT_MODE_Line;
if (geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId())
TransitionMode = TRANSITION_MODE_Tangent;
else
TransitionMode = TRANSITION_MODE_Free;
break;
}
}
if (SegmentMode == SEGMENT_MODE_Line)
EditCurve.resize(TransitionMode == TRANSITION_MODE_Free ? 2 : 3);
else
EditCurve.resize(32);
mouseMove(onSketchPos); // trigger an update of EditCurve
}
}
virtual void activated(ViewProviderSketch *sketchgui)
{
setCursor(QPixmap(cursor_createlineset),7,7);
}
virtual void mouseMove(Base::Vector2D onSketchPos)
{
suppressTransition = false;
if (Mode==STATUS_SEEK_First) {
setPositionText(onSketchPos);
if (seekAutoConstraint(sugConstr1, onSketchPos, Base::Vector2D(0.f,0.f))) {
renderSuggestConstraintsCursor(sugConstr1);
return;
}
}
else if (Mode==STATUS_SEEK_Second){
if (SegmentMode == SEGMENT_MODE_Line) {
EditCurve[EditCurve.size()-1] = onSketchPos;
if (TransitionMode == TRANSITION_MODE_Tangent) {
Base::Vector2D Tangent(dirVec.x,dirVec.y);
EditCurve[1].ProjToLine(EditCurve[2] - EditCurve[0], Tangent);
if (EditCurve[1] * Tangent < 0) {
EditCurve[1] = EditCurve[2];
suppressTransition = true;
}
else
EditCurve[1] = EditCurve[0] + EditCurve[1];
}
else if (TransitionMode == TRANSITION_MODE_Perpendicular_L ||
TransitionMode == TRANSITION_MODE_Perpendicular_R) {
Base::Vector2D Perpendicular(-dirVec.y,dirVec.x);
EditCurve[1].ProjToLine(EditCurve[2] - EditCurve[0], Perpendicular);
EditCurve[1] = EditCurve[0] + EditCurve[1];
}
sketchgui->drawEdit(EditCurve);
float length = (EditCurve[1] - EditCurve[0]).Length();
float angle = (EditCurve[1] - EditCurve[0]).GetAngle(Base::Vector2D(1.f,0.f));
SbString text;
text.sprintf(" (%.1f,%.1fdeg)", length, angle * 180 / M_PI);
setPositionText(EditCurve[1], text);
if (TransitionMode == TRANSITION_MODE_Free) {
if (seekAutoConstraint(sugConstr2, onSketchPos, onSketchPos - EditCurve[0])) {
renderSuggestConstraintsCursor(sugConstr2);
return;
}
}
}
else if (SegmentMode == SEGMENT_MODE_Arc) {
Base::Vector2D Tangent;
if (TransitionMode == TRANSITION_MODE_Tangent)
Tangent = Base::Vector2D(dirVec.x,dirVec.y);
else if (TransitionMode == TRANSITION_MODE_Perpendicular_L)
Tangent = Base::Vector2D(-dirVec.y,dirVec.x);
else if (TransitionMode == TRANSITION_MODE_Perpendicular_R)
Tangent = Base::Vector2D(dirVec.y,-dirVec.x);
double theta = Tangent.GetAngle(onSketchPos - EditCurve[0]);
arcRadius = (onSketchPos - EditCurve[0]).Length()/(2.0*sin(theta));
// At this point we need a unit normal vector pointing torwards
// the center of the arc we are drawing. Derivation of the formula
// used here can be found at http://people.richland.edu/james/lecture/m116/matrices/area.html
double x1 = EditCurve[0].fX;
double y1 = EditCurve[0].fY;
double x2 = x1 + Tangent.fX;
double y2 = y1 + Tangent.fY;
double x3 = onSketchPos.fX;
double y3 = onSketchPos.fY;
if ((x2*y3-x3*y2)-(x1*y3-x3*y1)+(x1*y2-x2*y1) > 0)
arcRadius *= -1;
if (boost::math::isnan(arcRadius) || boost::math::isinf(arcRadius))
arcRadius = 0.f;
CenterPoint = EditCurve[0] + Base::Vector2D(arcRadius * Tangent.fY, -arcRadius * Tangent.fX);
double rx = EditCurve[0].fX - CenterPoint.fX;
double ry = EditCurve[0].fY - CenterPoint.fY;
startAngle = atan2(ry,rx);
double rxe = onSketchPos.fX - CenterPoint.fX;
double rye = onSketchPos.fY - CenterPoint.fY;
double arcAngle = atan2(-rxe*ry + rye*rx, rxe*rx + rye*ry);
if (boost::math::isnan(arcAngle) || boost::math::isinf(arcAngle))
arcAngle = 0.f;
if (arcRadius >= 0 && arcAngle > 0)
arcAngle -= 2*M_PI;
if (arcRadius < 0 && arcAngle < 0)
arcAngle += 2*M_PI;
endAngle = startAngle + arcAngle;
for (int i=1; i <= 29; i++) {
double angle = i*arcAngle/29.0;
double dx = rx * cos(angle) - ry * sin(angle);
double dy = rx * sin(angle) + ry * cos(angle);
EditCurve[i] = Base::Vector2D(CenterPoint.fX + dx, CenterPoint.fY + dy);
}
EditCurve[30] = CenterPoint;
EditCurve[31] = EditCurve[0];
sketchgui->drawEdit(EditCurve);
SbString text;
text.sprintf(" (%.1fR,%.1fdeg)", std::abs(arcRadius), arcAngle * 180 / M_PI);
setPositionText(onSketchPos, text);
if (seekAutoConstraint(sugConstr2, onSketchPos, Base::Vector2D(0.f,0.f))) {
renderSuggestConstraintsCursor(sugConstr2);
return;
}
}
}
applyCursor();
}
virtual bool pressButton(Base::Vector2D onSketchPos)
{
if (Mode == STATUS_SEEK_First) {
EditCurve[0] = onSketchPos; // this may be overwritten if previousCurve is found
// here we check if there is a preselected point and
// we set up a transition from the neighbouring segment.
// (peviousCurve, previousPosId, dirVec, TransitionMode)
for (unsigned int i=0; i < sugConstr1.size(); i++)
if (sugConstr1[i].Type == Sketcher::Coincident) {
const Part::Geometry *geom = sketchgui->getSketchObject()->getGeometry(sugConstr1[i].GeoId);
if ((geom->getTypeId() == Part::GeomLineSegment::getClassTypeId() ||
geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId()) &&
(sugConstr1[i].PosId == Sketcher::start ||
sugConstr1[i].PosId == Sketcher::end)) {
previousCurve = sugConstr1[i].GeoId;
previousPosId = sugConstr1[i].PosId;
updateTransitionData(previousCurve,previousPosId); // -> dirVec, EditCurve[0]
if (geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId())
TransitionMode = TRANSITION_MODE_Tangent;
sugConstr1.erase(sugConstr1.begin()+i); // actually we should clear the vector completely
break;
}
}
// remember our first point (even if we are doing a transition from a previous curve)
firstCurve = getHighestCurveIndex() + 1;
firstPosId = Sketcher::start;
if (SegmentMode == SEGMENT_MODE_Line)
EditCurve.resize(TransitionMode == TRANSITION_MODE_Free ? 2 : 3);
else if (SegmentMode == SEGMENT_MODE_Arc)
EditCurve.resize(32);
Mode = STATUS_SEEK_Second;
}
else if (Mode == STATUS_SEEK_Second) {
// exit on clicking exactly at the same position (e.g. double click)
if (onSketchPos == EditCurve[0]) {
unsetCursor();
EditCurve.clear();
resetPositionText();
sketchgui->drawEdit(EditCurve);
sketchgui->purgeHandler(); // no code after this line, Handler get deleted in ViewProvider
}
Mode = STATUS_Do;
if (sketchgui->getPreselectPoint() != -1 && firstPosId != Sketcher::none) {
int GeoId;
Sketcher::PointPos PosId;
sketchgui->getSketchObject()->getGeoVertexIndex(sketchgui->getPreselectPoint(),GeoId,PosId);
if (sketchgui->getSketchObject()->arePointsCoincident(GeoId,PosId,firstCurve,firstPosId))
Mode = STATUS_Close;
}
else if (sketchgui->getPreselectCross() == 0 && firstPosId != Sketcher::none) {
// close line started at root point
if (sketchgui->getSketchObject()->arePointsCoincident(-1,Sketcher::start,firstCurve,firstPosId))
Mode = STATUS_Close;
}
}
return true;
}
virtual bool releaseButton(Base::Vector2D onSketchPos)
{
if (Mode == STATUS_Do || Mode == STATUS_Close) {
if (SegmentMode == SEGMENT_MODE_Line) {
// open the transaction
Gui::Command::openCommand("Add line to sketch wire");
// issue the geometry
Gui::Command::doCommand(Gui::Command::Doc,
"App.ActiveDocument.%s.addGeometry(Part.Line(App.Vector(%f,%f,0),App.Vector(%f,%f,0)))",
sketchgui->getObject()->getNameInDocument(),
EditCurve[0].fX,EditCurve[0].fY,EditCurve[1].fX,EditCurve[1].fY);
}
else if (SegmentMode == SEGMENT_MODE_Arc) { // We're dealing with an Arc
if (!boost::math::isnormal(arcRadius)) {
Mode = STATUS_SEEK_Second;
return true;
}
Gui::Command::openCommand("Add arc to sketch wire");
Gui::Command::doCommand(Gui::Command::Doc,
"App.ActiveDocument.%s.addGeometry(Part.ArcOfCircle"
"(Part.Circle(App.Vector(%f,%f,0),App.Vector(0,0,1),%f),%f,%f))",
sketchgui->getObject()->getNameInDocument(),
CenterPoint.fX, CenterPoint.fY, std::abs(arcRadius),
std::min(startAngle,endAngle), std::max(startAngle,endAngle));
}
// issue the constraint
if (previousPosId != Sketcher::none) {
int lastCurve = getHighestCurveIndex();
Sketcher::PointPos lastStartPosId = (SegmentMode == SEGMENT_MODE_Arc && startAngle > endAngle) ?
Sketcher::end : Sketcher::start;
Sketcher::PointPos lastEndPosId = (SegmentMode == SEGMENT_MODE_Arc && startAngle > endAngle) ?
Sketcher::start : Sketcher::end;
// in case of a tangency constraint, the coincident constraint is redundant
std::string constrType = "Coincident";
if (!suppressTransition && previousCurve != -1) {
if (TransitionMode == TRANSITION_MODE_Tangent)
constrType = "Tangent";
else if (TransitionMode == TRANSITION_MODE_Perpendicular_L ||
TransitionMode == TRANSITION_MODE_Perpendicular_R)
constrType = "Perpendicular";
}
Gui::Command::doCommand(Gui::Command::Doc,
"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('%s',%i,%i,%i,%i)) ",
sketchgui->getObject()->getNameInDocument(), constrType.c_str(),
previousCurve, previousPosId, lastCurve, lastStartPosId);
if (Mode == STATUS_Close) {
// close the loop by constrain to the first curve point
Gui::Command::doCommand(Gui::Command::Doc,
"App.ActiveDocument.%s.addConstraint(Sketcher.Constraint('Coincident',%i,%i,%i,%i)) ",
sketchgui->getObject()->getNameInDocument(),
lastCurve,lastEndPosId,firstCurve,firstPosId);
}
Gui::Command::commitCommand();
Gui::Command::updateActive();
}
if (Mode == STATUS_Close) {
if (sugConstr2.size() > 0) {
// exclude any coincidence constraints
std::vector<AutoConstraint> sugConstr;
for (unsigned int i=0; i < sugConstr2.size(); i++) {
if (sugConstr2[i].Type != Sketcher::Coincident)
sugConstr.push_back(sugConstr2[i]);
}
createAutoConstraints(sugConstr, getHighestCurveIndex(), Sketcher::end);
sugConstr2.clear();
}
unsetCursor();
EditCurve.clear();
resetPositionText();
sketchgui->drawEdit(EditCurve);
sketchgui->purgeHandler(); // no code after this line, Handler get deleted in ViewProvider
}
else {
Gui::Command::commitCommand();
Gui::Command::updateActive();
// Add auto constraints
if (sugConstr1.size() > 0) { // this is relevant only to the very first point
createAutoConstraints(sugConstr1, getHighestCurveIndex(), Sketcher::start);
sugConstr1.clear();
}
if (sugConstr2.size() > 0) {
createAutoConstraints(sugConstr2, getHighestCurveIndex(), Sketcher::end);
sugConstr2.clear();
}
// remember the vertex for the next rounds constraint..
previousCurve = getHighestCurveIndex();
previousPosId = (SegmentMode == SEGMENT_MODE_Arc && startAngle > endAngle) ?
Sketcher::start : Sketcher::end; // cw arcs are rendered in reverse
// setup for the next line segment
// calculate dirVec and EditCurve[0]
updateTransitionData(previousCurve,previousPosId);
applyCursor();
Mode = STATUS_SEEK_Second;
if (SegmentMode == SEGMENT_MODE_Arc) {
TransitionMode = TRANSITION_MODE_Tangent;
EditCurve.resize(3);
EditCurve[2] = EditCurve[0];
}
else {
TransitionMode = TRANSITION_MODE_Free;
EditCurve.resize(2);
}
SegmentMode = SEGMENT_MODE_Line;
EditCurve[1] = EditCurve[0];
mouseMove(onSketchPos); // trigger an update of EditCurve
}
}
return true;
}
protected:
SELECT_MODE Mode;
SEGMENT_MODE SegmentMode;
TRANSITION_MODE TransitionMode;
bool suppressTransition;
std::vector<Base::Vector2D> EditCurve;
int firstCurve;
int previousCurve;
Sketcher::PointPos firstPosId;
Sketcher::PointPos previousPosId;
std::vector<AutoConstraint> sugConstr1, sugConstr2;
Base::Vector2D CenterPoint;
Base::Vector3d dirVec;
double startAngle, endAngle, arcRadius;
void updateTransitionData(int GeoId, Sketcher::PointPos PosId) {
// Use updated startPoint/endPoint as autoconstraints can modify the position
const Part::Geometry *geom = sketchgui->getSketchObject()->getGeometry(GeoId);
if (geom->getTypeId() == Part::GeomLineSegment::getClassTypeId()) {
const Part::GeomLineSegment *lineSeg = dynamic_cast<const Part::GeomLineSegment *>(geom);
dirVec.Set(lineSeg->getEndPoint().x - lineSeg->getStartPoint().x,
lineSeg->getEndPoint().y - lineSeg->getStartPoint().y,
0.f);
if (PosId == Sketcher::start) {
dirVec *= -1;
EditCurve[0] = Base::Vector2D(lineSeg->getStartPoint().x, lineSeg->getStartPoint().y);
}
else
EditCurve[0] = Base::Vector2D(lineSeg->getEndPoint().x, lineSeg->getEndPoint().y);
}
else if (geom->getTypeId() == Part::GeomArcOfCircle::getClassTypeId()) {
const Part::GeomArcOfCircle *arcSeg = dynamic_cast<const Part::GeomArcOfCircle *>(geom);
if (PosId == Sketcher::start) {
EditCurve[0] = Base::Vector2D(arcSeg->getStartPoint().x,arcSeg->getStartPoint().y);
dirVec = Base::Vector3d(0.f,0.f,-1.0) % (arcSeg->getStartPoint()-arcSeg->getCenter());
}
else {
EditCurve[0] = Base::Vector2D(arcSeg->getEndPoint().x,arcSeg->getEndPoint().y);
dirVec = Base::Vector3d(0.f,0.f,1.0) % (arcSeg->getEndPoint()-arcSeg->getCenter());
}
}
dirVec.Normalize();
}
};
DEF_STD_CMD_A(CmdSketcherCreatePolyline);
CmdSketcherCreatePolyline::CmdSketcherCreatePolyline()
: Command("Sketcher_CreatePolyline")
{
sAppModule = "Sketcher";
sGroup = QT_TR_NOOP("Sketcher");
sMenuText = QT_TR_NOOP("Create polyline");
sToolTipText = QT_TR_NOOP("Create a polyline in the sketch. 'M' Key cycles behaviour");
sWhatsThis = sToolTipText;
sStatusTip = sToolTipText;
sPixmap = "Sketcher_CreatePolyline";