public LineInterpolatorAABase(OutlineRenderer ren, LineParameters lp) { m_lp = lp; m_li = new LineInterpolatorDDA2(lp.vertical ? LineAA.DblHr(lp.x2 - lp.x1) : LineAA.DblHr(lp.y2 - lp.y1), lp.vertical ? Math.Abs(lp.y2 - lp.y1) : Math.Abs(lp.x2 - lp.x1) + 1); m_ren = ren; m_len = ((lp.vertical == (lp.inc > 0)) ? -lp.len : lp.len); m_x = (lp.x1 >> LineAA.SUBPIXEL_SHIFT); m_y = (lp.y1 >> LineAA.SUBPIXEL_SHIFT); m_old_x = (m_x); m_old_y = (m_y); m_count = ((lp.vertical ? Math.Abs((lp.y2 >> LineAA.SUBPIXEL_SHIFT) - m_y) : Math.Abs((lp.x2 >> LineAA.SUBPIXEL_SHIFT) - m_x))); m_width = (ren.SubPixelWidth); //m_max_extent(m_width >> (line_subpixel_shift - 2)); m_max_extent = ((m_width + LineAA.SUBPIXEL_MARK) >> LineAA.SUBPIXEL_SHIFT); m_step = 0; LineInterpolatorDDA2 li = new LineInterpolatorDDA2(0, lp.vertical ? (lp.dy << LineAA.SUBPIXEL_SHIFT) : (lp.dx << LineAA.SUBPIXEL_SHIFT), lp.len); int i; int stop = m_width + LineAA.SUBPIXEL_SCALE * 2; for (i = 0; i < MAX_HALF_WIDTH; ++i) { m_dist[i] = li.Y; if (m_dist[i] >= stop) { break; } li.Next(); } m_dist[i++] = 0x7FFF0000; }
public LineInterpolatorAAData(OutlineRenderer ren, LineParameters lp) { _ren = ren; //TODO: consider resuable array _dist = ren.GetFreeDistArray(); // new int[MAX_HALF_WIDTH + 1]; _covers = ren.GetFreeConvArray(); // new byte[MAX_HALF_WIDTH * 2 + 4]; _li = new LineInterpolatorDDA2( lp.vertical ? LineAA.DblHr(lp.x2 - lp.x1) : LineAA.DblHr(lp.y2 - lp.y1), lp.vertical ? Math.Abs(lp.y2 - lp.y1) : Math.Abs(lp.x2 - lp.x1) + 1); //--------------------------------------------------------- _lp = lp; _len = ((lp.vertical == (lp.inc > 0)) ? -lp.len : lp.len); m_x = (lp.x1 >> LineAA.SUBPIXEL_SHIFT); m_y = (lp.y1 >> LineAA.SUBPIXEL_SHIFT); m_old_x = (m_x); m_old_y = (m_y); _count = ((lp.vertical ? Math.Abs((lp.y2 >> LineAA.SUBPIXEL_SHIFT) - m_y) : Math.Abs((lp.x2 >> LineAA.SUBPIXEL_SHIFT) - m_x))); _width = (ren.SubPixelWidth); //m_max_extent(m_width >> (line_subpixel_shift - 2)); _max_extent = ((_width + LineAA.SUBPIXEL_MARK) >> LineAA.SUBPIXEL_SHIFT); m_step = 0; //------------------- var li = new LineInterpolatorDDA2S(0, lp.vertical ? (lp.dy << LineAA.SUBPIXEL_SHIFT) : (lp.dx << LineAA.SUBPIXEL_SHIFT), lp.len); int i; int stop = _width + LineAA.SUBPIXEL_SCALE * 2; for (i = 0; i < MAX_HALF_WIDTH; ++i) { //assign and eval //#if DEBUG // if (li.Y == 194) // { // } //#endif if ((_dist[i] = li.Y) >= stop) { break; } li.Next(); } _dist[i++] = 0x7FFF0000; }
//---------------------------------------------------------------- public void Begin(double x, double y, int len) { double tx; double ty; tx = x; ty = y; m_trans.Transform(ref tx, ref ty); int x1 = AggBasics.iround(tx * (double)SUB_PIXEL_SCALE); int y1 = AggBasics.iround(ty * (double)SUB_PIXEL_SCALE); tx = x + len; ty = y; m_trans.Transform(ref tx, ref ty); int x2 = AggBasics.iround(tx * (double)SUB_PIXEL_SCALE); int y2 = AggBasics.iround(ty * (double)SUB_PIXEL_SCALE); m_li_x = new LineInterpolatorDDA2(x1, x2, (int)len); m_li_y = new LineInterpolatorDDA2(y1, y2, (int)len); }
//---------------------------------------------------------------- public void Begin(double x, double y, int len) { double tx; double ty; tx = x; ty = y; m_trans.Transform(ref tx, ref ty); int x1 = AggMath.iround(tx * (double)SUB_PIXEL_SCALE); int y1 = AggMath.iround(ty * (double)SUB_PIXEL_SCALE); tx = x + len; ty = y; m_trans.Transform(ref tx, ref ty); int x2 = AggMath.iround(tx * (double)SUB_PIXEL_SCALE); int y2 = AggMath.iround(ty * (double)SUB_PIXEL_SCALE); m_li_x = new LineInterpolatorDDA2(x1, x2, (int)len); m_li_y = new LineInterpolatorDDA2(y1, y2, (int)len); }
//---------------------------------------------------------------- public void Begin(double x, double y, int len) { double tx = x; double ty = y; _trans.Transform(ref tx, ref ty); int x1 = AggMath.iround(tx * SUB_PIXEL_SCALE); int y1 = AggMath.iround(ty * SUB_PIXEL_SCALE); // tx = x + len; //*** ty = y; //** _trans.Transform(ref tx, ref ty); int x2 = AggMath.iround(tx * SUB_PIXEL_SCALE); int y2 = AggMath.iround(ty * SUB_PIXEL_SCALE); // _li_x = new LineInterpolatorDDA2(x1, x2, len); _li_y = new LineInterpolatorDDA2(y1, y2, len); }
//---------------------------------------------------------------- public void ReSync(double xe, double ye, int len) { m_trans.Transform(ref xe, ref ye); m_li_x = new LineInterpolatorDDA2(m_li_x.Y, AggMath.iround(xe * (double)SUB_PIXEL_SCALE), (int)len); m_li_y = new LineInterpolatorDDA2(m_li_y.Y, AggMath.iround(ye * (double)SUB_PIXEL_SCALE), (int)len); }
//---------------------------------------------------------------- public void ReSync(double xe, double ye, int len) { m_trans.Transform(ref xe, ref ye); m_li_x = new LineInterpolatorDDA2(m_li_x.Y, AggBasics.iround(xe * (double)SUB_PIXEL_SCALE), (int)len); m_li_y = new LineInterpolatorDDA2(m_li_y.Y, AggBasics.iround(ye * (double)SUB_PIXEL_SCALE), (int)len); }