Difference between revisions of "GeCircle"

Revision as of 06:38, 19 November 2017

Class for drawing a 2D circle or a circle section.

Usage

Inheritance

Base classes

• geObject
  • geObject2D
    • geCircle

Reference

Fields

Note: All coordinates are in pixels, relative to top-left corner of the window. All angles are in degrees.

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   double x;      // x coordinate (px)

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   double y;      // y coordinate (px)

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   double r;      // rotation (degrees) - around axis point

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   double s;      // scale - around axis point

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   double w;      // width (px)

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   double h;      // height (px)

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   double alignX; // horizontal alignment offset - use Align() to set these

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   double alignY; // vertical alignment offset

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   double axisX;  // horizontal axis offset - use SetAxis() to set these

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   double axisY;  // vertical axis offset

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   bool active;   // indicates whether object should be active/visible

•  color color1;       // inside (center) color of the circle

•  color color2;       // outside (edge) color of the circle

•  double sectorStart; // sector start (0...1 range)

•  double sectorSize;  // sector size (0...1 range). Leave this at 1.0 to draw a fill circle.

•  UINT divisions;     // number of divisions on the circle; more = smoother appearance, less = better performance

Constructors

•  geCircle( double _x=0, double _y=0, double _w=0, double _h=0, UINT divisions=32, double _sectorSize=1 );

•  geCircle( const geCircle& original ); // copy constructor

Methods

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   virtual void Align( int alignment = GE_ALIGN_TL, double _alignX = 0, double _alignY = 0 );

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   virtual void SetAxis( int axis = GE_ALIGN_CENTER, double _axisX = 0, double _axisY = 0 );