146 lines
6.0 KiB
C++
146 lines
6.0 KiB
C++
/**
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* @file aperture_macro.h
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*/
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#ifndef AM_PRIMITIVE_H
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#define AM_PRIMITIVE_H
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/*
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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) 1992-2010 Jean-Pierre Charras <jp.charras at wanadoo.fr>
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* Copyright (C) 2010 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
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* Copyright (C) 1992-2023 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 <vector>
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#include <set>
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#include <am_param.h>
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class SHAPE_POLY_SET;
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/*
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* An aperture macro defines a complex shape and is a list of aperture primitives.
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* Each aperture primitive defines a simple shape (circle, rect, regular polygon...)
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* Inside a given aperture primitive, a fixed list of parameters defines info
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* about the shape: size, thickness, number of vertex ...
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*
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* Each parameter can be an immediate value or a deferred value.
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* When value is deferred, it is defined when the aperture macro is instanced by
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* an ADD macro command
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* Note also a deferred parameter can be defined in aperture macro,
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* but outside aperture primitives. Example
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* %AMRECTHERM*
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* $4=$3/2* parameter $4 is half value of parameter $3
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* 21,1,$1-$3,$2-$3,0-$1/2-$4,0-$2/2-$4,0*
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* For the aperture primitive, parameters $1 to $3 will be defined in ADD command,
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* and $4 is defined inside the macro
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*
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* Each basic shape can be a positive shape or a negative shape.
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* a negative shape is "local" to the whole shape.
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* It must be seen like a hole in the shape, and not like a standard negative object.
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*/
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/**
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* The set of all "aperture macro primitives" (primitive numbers).
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*
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* See Table 3 in http://gerbv.sourceforge.net/docs/rs274xrevd_e.pdf aperture macro primitives
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* are basic shapes which can be combined to create a complex shape. This complex shape is
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* flashed.
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*/
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enum AM_PRIMITIVE_ID {
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AMP_UNKNOWN = -1, // A value for uninitialized AM_PRIMITIVE.
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AMP_COMMENT = 0, // A primitive description is not really a primitive, this is a
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// comment
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AMP_CIRCLE = 1, // Circle. (diameter and position)
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AMP_LINE2 = 2, // Line with rectangle ends. (Width, start and end pos + rotation)
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AMP_LINE20 = 20, // Same as AMP_LINE2
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AMP_LINE_CENTER = 21, // Rectangle. (height, width and center pos + rotation)
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AMP_LINE_LOWER_LEFT = 22, // Rectangle. (height, width and left bottom corner pos + rotation)
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AMP_EOF = 3, // End Of File marker: not really a shape
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AMP_OUTLINE = 4, // Free polyline (n corners + rotation)
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AMP_POLYGON = 5, // Closed regular polygon(diameter, number of vertices (3 to 10),
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// rotation)
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AMP_MOIRE = 6, // A cross hair with n concentric circles + rotation
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AMP_THERMAL = 7 // Thermal shape (pos, outer and inner diameter, cross hair
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// thickness + rotation)
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};
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/**
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* An aperture macro primitive as given in Table 3 of
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* http://gerbv.sourceforge.net/docs/rs274xrevd_e.pdf
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*/
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class AM_PRIMITIVE
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{
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public:
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AM_PRIMITIVE_ID m_Primitive_id; ///< The primitive type
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AM_PARAMS m_Params; ///< A sequence of parameters used by the primitive
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bool m_GerbMetric; // units for this primitive:
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// false = Inches, true = metric
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AM_PRIMITIVE( bool aGerbMetric, AM_PRIMITIVE_ID aId = AMP_UNKNOWN )
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{
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m_Primitive_id = aId;
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m_GerbMetric = aGerbMetric;
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}
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~AM_PRIMITIVE() {}
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/**
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* @return true if the first parameter is not 0 (it can be only 0 or 1).
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* Some but not all primitives use the first parameter as an exposure control.
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* Others are always ON.
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* In a aperture macro shape, a basic primitive with exposure off is a hole in the shape
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* it is NOT a negative shape
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*/
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bool IsAMPrimitiveExposureOn( const GERBER_DRAW_ITEM* aParent ) const;
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/**
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* Generate the polygonal shape of the primitive shape of an aperture
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* macro instance.
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*
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* @param aParent is the parent GERBER_DRAW_ITEM which is actually drawn.
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* @param aShapeBuffer is a SHAPE_POLY_SET to put the shape converted to a polygon.
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* @param aShapePos is the actual shape position.
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*/
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void ConvertBasicShapeToPolygon( const GERBER_DRAW_ITEM* aParent,
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SHAPE_POLY_SET& aShapeBuffer,
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const VECTOR2I& aShapePos );
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private:
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/**
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* Convert a shape to an equivalent polygon.
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*
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* Arcs and circles are approximated by segments. Useful when a shape is not a graphic
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* primitive (shape with hole, rotated shape ... ) and cannot be easily drawn.
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*
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* @note Some schapes conbining circles and solid lines (rectangles), only rectangles are
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* converted because circles are very easy to draw (no rotation problem) so convert
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* them in polygons and draw them as polygons is not a good idea.
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*/
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void ConvertShapeToPolygon( const GERBER_DRAW_ITEM* aParent, std::vector<VECTOR2I>& aBuffer );
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};
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#endif // ifndef AM_PRIMITIVE_H
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