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https://gitlab.com/kicad/code/kicad.git
synced 2025-09-15 10:43:15 +02:00
5f303f7b25
This adds a richer overlay to the arc-by-three-points tool in Pcbnew, including more guide-lines and a live display of radius and angle. Also included is ability to go back to the previous step (if setting end angle, you can go back to setting start point, etc) using Backspace, and Ctrl snaps the start/end angles to 45 degree multiples. This adds new classes * MULTISTEP_GEOM_MANAGER: represents a generic "geometry manager" that builds up some geometrical construction based on a sequence of points. Used by: * ARC_GEOM_MANAGER: handles the logical flow of constructing an arc by centre-point, set radius, set angle. This moves the logic out of the Pcbnew DRAWING_TOOL event loop in drawArc(). * ARC_ASSISTANT: graphical overlay to communicate current arc shape to the user during the drawing process
165 lines
3.5 KiB
C++
165 lines
3.5 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2017 Kicad Developers, see AUTHORS.txt for contributors.
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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, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <preview_items/arc_geom_manager.h>
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#include <common.h> // KiROUND
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using namespace KIGFX::PREVIEW;
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///> Snap an angle to the nearest 45 degrees
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static double snapAngle( double aAngle )
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{
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return KiROUND( aAngle / M_PI_4 ) * M_PI_4;
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}
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bool ARC_GEOM_MANAGER::acceptPoint( const VECTOR2I& aPt )
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{
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switch( getStep() )
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{
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case SET_ORIGIN:
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return setOrigin( aPt );
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case SET_START:
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return setStart( aPt );
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case SET_ANGLE:
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return setEnd( aPt );
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case COMPLETE:
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break;
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}
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return false;
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}
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void ARC_GEOM_MANAGER::SetClockwise( bool aCw )
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{
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m_clockwise = aCw;
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setGeometryChanged();
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}
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void ARC_GEOM_MANAGER::ToggleClockwise()
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{
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m_clockwise = !m_clockwise;
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setGeometryChanged();
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}
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VECTOR2I ARC_GEOM_MANAGER::GetOrigin() const
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{
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return m_origin;
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}
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VECTOR2I ARC_GEOM_MANAGER::GetStartRadiusEnd() const
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{
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return m_origin + VECTOR2I( m_radius, 0 ).Rotate( m_startAngle );
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}
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VECTOR2I ARC_GEOM_MANAGER::GetEndRadiusEnd() const
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{
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return m_origin + VECTOR2I( m_radius, 0 ).Rotate( m_endAngle );
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}
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double ARC_GEOM_MANAGER::GetRadius() const
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{
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return m_radius;
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}
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double ARC_GEOM_MANAGER::GetStartAngle() const
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{
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double angle = m_startAngle;
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if( m_clockwise )
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angle -= 2 * M_PI;
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return -angle;
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}
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double ARC_GEOM_MANAGER::GetSubtended() const
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{
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double angle = m_endAngle - m_startAngle;
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if( m_endAngle <= m_startAngle )
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angle += 2 * M_PI;
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if( m_clockwise )
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angle -= 2 * M_PI;
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return -angle;
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}
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bool ARC_GEOM_MANAGER::setOrigin( const VECTOR2I& aOrigin )
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{
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m_origin = aOrigin;
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m_startAngle = 0.0;
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m_endAngle = 0.0;
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return true;
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}
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bool ARC_GEOM_MANAGER::setStart( const VECTOR2I& aEnd )
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{
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const auto radVec = aEnd - m_origin;
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m_radius = radVec.EuclideanNorm();
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m_startAngle = radVec.Angle();
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if( m_angleSnap )
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m_startAngle = snapAngle( m_startAngle );
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// normalise into 0-2Pi
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while( m_startAngle < 0 )
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m_startAngle += M_PI * 2;
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m_endAngle = m_startAngle;
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return m_radius != 0.0;
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}
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bool ARC_GEOM_MANAGER::setEnd( const VECTOR2I& aCursor )
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{
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const auto radVec = aCursor - m_origin;
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m_endAngle = radVec.Angle();
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if( m_angleSnap )
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m_endAngle = snapAngle( m_endAngle );
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// normalise into 0-2Pi
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while( m_endAngle < 0 )
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m_endAngle += M_PI * 2;
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// if the end is the same as the start, this is a bad point
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return m_endAngle != m_startAngle;
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}
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