32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
//
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// This source code is property of the Computer Graphics and Visualization
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// chair of the TU Dresden. Do not distribute in modified or unmodified form!
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// Copyright (C) 2016 CGV TU Dresden - All Rights Reserved
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//
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/*************************************************************************
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Bresenham-Circle tool.
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This class is inherited from "tool_base" to define a tool for drawing
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circles using the bresenham algorithm on a canvas_buffer.
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Read the information in "tool_base.h" for more information.
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*************************************************************************/
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#pragma once
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// provides the declaration of the super class tool_base
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#include "tool_base.h"
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class bresenham_circle_tool : public tool_base
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{
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public:
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// Initialize the tool and store a reference of a canvas_buffer
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bresenham_circle_tool(canvas_buffer &canvas);
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// Draw a circle with center (x0, y0) and (x1, y1) on the circle
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void draw(int x0, int y0, int x1, int y1);
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// Put debug output into the stream "stream" to be displayed in the
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// main window
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void set_text(std::stringstream &stream);
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private:
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void draw_circle(int xc, int yc, int x, int y);
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}; |