AGG lesson 19 agg::bezier_arc

Void DrawCurveOfBezierArc ()

{

Agg::rendering_buffer & rbuf = rbuf_window ()

Agg::pixfmt_bgr24 pixf (rbuf)

Typedef agg::renderer_base renderer_base_type

Renderer_base_type renb (pixf)

Typedef agg::renderer_scanline_aa_solid renderder_scanline_type

Renderder_scanline_type rensl (renb)

Agg::rasterizer_scanline_aa ras

Agg::scanline_u8 sl

Ras.reset ()

Agg::bezier_arc a (100,50,50,0.0, agg::pi/2)

Agg::conv_curve c (a)

Agg::conv_stroke s (c)

Agg::conv_stroke stroke (a)

Ras.add_path (s)

/ / ras.add_path (stroke); / / Comparative view

Agg::render_scanlines_aa_solid (ras,sl,renb,agg::rgba8 (255j0pl 0))

}

Add:

It is based on the recognizable VertexSource that the construction parameter of curve information is VertexSource,conv_smooth_poly1_curve. The vertex in the routine has no curve information, so she will be used in the text output.