70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
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# ifndef SR_POINTS_H
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# define SR_POINTS_H
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/** \file sr_points.h
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* manages a set of points
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*/
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# include "sr_box.h"
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# include "sr_vec2.h"
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# include "sr_color.h"
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# include "sr_array.h"
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/*! \class SrPoints sr_points.h
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\brief a set of points
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Keeps the description of points.
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Points are stored in array P.
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An optional array A with atributes (color and size) can be used.
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Even if P is a public member, it is the user responsability to
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mantain the size of P equal to the size of A, if A!=0. */
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class SrPoints
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{ public :
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SrArray<SrPnt> P; //<! Array of used points
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struct Atrib { SrColor c; float s; };
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SrArray<Atrib>* A; //<! Optional to use attributes
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static const char* class_name;
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public :
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/* Default constructor. */
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SrPoints ();
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/* Destructor . */
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~SrPoints ();
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/*! Set the size of array P to zero. */
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void init ();
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/*! Allocates A if needed, and set the size of array P and A to zero. */
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void init_with_attributes ();
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/*! Returns true if P array is empty; false otherwise. */
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bool empty () const { return P.size()==0? true:false; }
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/*! Compress array P and A. */
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void compress ();
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/*! Push in P a new point */
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void push ( const SrPnt& p );
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void push ( const SrPnt2& p );
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void push ( float x, float y, float z=0 );
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/*! Push in P a new point and push attributes in A. Only valid
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if init_with_attributes() was called before */
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void push ( const SrPnt& p, SrColor c, float size=1.0f );
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void push ( const SrPnt2& p, SrColor c, float size=1.0f );
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void push ( float x, float y, SrColor c, float size=1.0f );
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void push ( float x, float y, float z, SrColor c, float size=1.0f );
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/*! Returns the bounding box of all vertices used. The returned box can be empty. */
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void get_bounding_box ( SrBox &b ) const;
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};
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//================================ End of File =================================================
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# endif // SR_POINTS_H
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