/* assembles lists of line strips from the given track recursively traversing the subtracks data */ void Track::Assemble(std::list< std::list<wxPoint> > &pointlists, const LLBBox &box, double scale, int &last, int level, int pos) { if(pos == (int)SubTracks[level].size()) return; SubTrack &s = SubTracks[level][pos]; if(box.IntersectOut(s.m_box)) return; if(s.m_scale < scale) { pos <<= level; if(last < pos - 1) { std::list<wxPoint> new_list; pointlists.push_back(new_list); } if(last < pos) AddPointToList(pointlists, pos); last = wxMin(pos + (1<<level), TrackPoints.size() - 1); AddPointToList(pointlists, last); } else { Assemble(pointlists, box, scale, last, level-1, pos<<1); Assemble(pointlists, box, scale, last, level-1, (pos<<1)+1); } }
// internal test to see if regions don't intersect (optimization) bool LLRegion::NoIntersection(const LLRegion& region) const { if(Empty() || region.Empty()) return true; LLBBox box = GetBox(), rbox = region.GetBox(); return box.IntersectOut(rbox) || NoIntersection(rbox) || region.NoIntersection(box); }
void RoutePoint::DrawGL( ViewPort &vp, bool use_cached_screen_coords ) { if( !m_bIsVisible ) return; // Optimization, especially apparent on tracks in normal cases if( m_IconName == _T("empty") && !m_bShowName && !m_bPtIsSelected ) return; if(m_wpBBox.GetValid() && vp.view_scale_ppm == m_wpBBox_view_scale_ppm && vp.rotation == m_wpBBox_rotation) { /* see if this waypoint can intersect with bounding box */ LLBBox vpBBox = vp.GetBBox(); if( vpBBox.IntersectOut( m_wpBBox ) ){ // Are Range Rings enabled? if(m_bShowWaypointRangeRings && (m_iWaypointRangeRingsNumber > 0)){ double factor = 1.00; if( m_iWaypointRangeRingsStepUnits == 1 ) // convert kilometers to NMi factor = 1 / 1.852; double radius = factor * m_iWaypointRangeRingsNumber * m_fWaypointRangeRingsStep / 60.; LLBBox radar_box = m_wpBBox; radar_box.EnLarge(radius * 2 ); if( vpBBox.IntersectOut( radar_box ) ){ return; } } else return; } } wxPoint r; wxRect hilitebox; unsigned char transparency = 150; double platform_pen_width = wxRound(wxMax(1.0, g_Platform->GetDisplayDPmm() / 2)); // 0.5 mm nominal, but not less than 1 pixel if(use_cached_screen_coords && m_pos_on_screen) r.x = m_screen_pos.m_x, r.y = m_screen_pos.m_y; else cc1->GetCanvasPointPix( m_lat, m_lon, &r ); if(r.x == INVALID_COORD) return; // Substitute icon? wxBitmap *pbm; if( ( m_bIsActive ) && ( m_IconName != _T("mob") ) ) pbm = pWayPointMan->GetIconBitmap( _T ( "activepoint" ) ); else pbm = m_pbmIcon; // If icon is corrupt, there is really nothing else to do... if(!pbm->IsOk()) return; int sx2 = pbm->GetWidth() / 2; int sy2 = pbm->GetHeight() / 2; // Calculate the mark drawing extents wxRect r1( r.x - sx2, r.y - sy2, sx2 * 2, sy2 * 2 ); // the bitmap extents wxRect r3 = r1; if( m_bShowName ) { if( !m_pMarkFont ) { m_pMarkFont = FontMgr::Get().GetFont( _( "Marks" ) ); m_FontColor = FontMgr::Get().GetFontColor( _( "Marks" ) ); CalculateNameExtents(); } if( m_pMarkFont ) { wxRect r2( r.x + m_NameLocationOffsetX, r.y + m_NameLocationOffsetY, m_NameExtents.x, m_NameExtents.y ); r3.Union( r2 ); } } hilitebox = r3; hilitebox.x -= r.x; hilitebox.y -= r.y; hilitebox.x *= g_ChartScaleFactorExp; hilitebox.y *= g_ChartScaleFactorExp; hilitebox.width *= g_ChartScaleFactorExp; hilitebox.height *= g_ChartScaleFactorExp; float radius; if( g_btouch ){ hilitebox.Inflate( 20 ); radius = 20.0f; } else{ hilitebox.Inflate( 4 ); radius = 4.0f; } /* update bounding box */ if(!m_wpBBox.GetValid() || vp.view_scale_ppm != m_wpBBox_view_scale_ppm || vp.rotation != m_wpBBox_rotation) { double lat1, lon1, lat2, lon2; cc1->GetCanvasPixPoint(r.x+hilitebox.x, r.y+hilitebox.y+hilitebox.height, lat1, lon1); cc1->GetCanvasPixPoint(r.x+hilitebox.x+hilitebox.width, r.y+hilitebox.y, lat2, lon2); if(lon1 > lon2) m_wpBBox.Set(lat1, lon1, lat2, lon2+360); else m_wpBBox.Set(lat1, lon1, lat2, lon2); m_wpBBox_view_scale_ppm = vp.view_scale_ppm; m_wpBBox_rotation = vp.rotation; } // if(region.Contains(r3) == wxOutRegion) // return; ocpnDC dc; // Highlite any selected point if( m_bPtIsSelected ) { wxColour hi_colour; if( m_bBlink ){ wxPen *pen = g_pRouteMan->GetActiveRoutePointPen(); hi_colour = pen->GetColour(); } else{ hi_colour = GetGlobalColor( _T ( "YELO1" ) ); } AlphaBlending( dc, r.x + hilitebox.x, r.y + hilitebox.y, hilitebox.width, hilitebox.height, radius, hi_colour, transparency ); } bool bDrawHL = false; if( m_bBlink && ( gFrame->nBlinkerTick & 1 ) ) bDrawHL = true; if( ( !bDrawHL ) && ( NULL != m_pbmIcon ) ) { int glw, glh; unsigned int IconTexture = pWayPointMan->GetIconTexture( pbm, glw, glh ); glBindTexture(GL_TEXTURE_2D, IconTexture); glEnable(GL_TEXTURE_2D); glEnable(GL_BLEND); glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE ); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glColor3f(1, 1, 1); int x = r1.x, y = r1.y, w = r1.width, h = r1.height; float scale = 1.0; // if(g_bresponsive){ scale = g_ChartScaleFactorExp; // } float ws = r1.width * scale; float hs = r1.height * scale; float xs = r.x - ws/2.; float ys = r.y - hs/2.; float u = (float)w/glw, v = (float)h/glh; glBegin(GL_QUADS); glTexCoord2f(0, 0); glVertex2f(xs, ys); glTexCoord2f(u, 0); glVertex2f(xs+ws, ys); glTexCoord2f(u, v); glVertex2f(xs+ws, ys+hs); glTexCoord2f(0, v); glVertex2f(xs, ys+hs); glEnd(); // glBegin(GL_QUADS); // glTexCoord2f(0, 0); glVertex2f(x, y); // glTexCoord2f(u, 0); glVertex2f(x+w, y); // glTexCoord2f(u, v); glVertex2f(x+w, y+h); // glTexCoord2f(0, v); glVertex2f(x, y+h); // glEnd(); glDisable(GL_BLEND); glDisable(GL_TEXTURE_2D); } if( m_bShowName && m_pMarkFont ) { int w = m_NameExtents.x, h = m_NameExtents.y; if(!m_iTextTexture && w && h) { wxBitmap tbm(w, h); /* render text on dc */ wxMemoryDC dc; dc.SelectObject( tbm ); dc.SetBackground( wxBrush( *wxBLACK ) ); dc.Clear(); dc.SetFont( *m_pMarkFont ); dc.SetTextForeground( *wxWHITE ); dc.DrawText( m_MarkName, 0, 0); dc.SelectObject( wxNullBitmap ); /* make alpha texture for text */ wxImage image = tbm.ConvertToImage(); unsigned char *d = image.GetData(); unsigned char *e = new unsigned char[w * h]; if(d && e){ for( int p = 0; p < w*h; p++) e[p] = d[3*p + 0]; } /* create texture for rendered text */ glGenTextures(1, &m_iTextTexture); glBindTexture(GL_TEXTURE_2D, m_iTextTexture); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); m_iTextTextureWidth = NextPow2(w); m_iTextTextureHeight = NextPow2(h); glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, m_iTextTextureWidth, m_iTextTextureHeight, 0, GL_ALPHA, GL_UNSIGNED_BYTE, NULL); glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_ALPHA, GL_UNSIGNED_BYTE, e); delete [] e; } if(m_iTextTexture) { /* draw texture with text */ glBindTexture(GL_TEXTURE_2D, m_iTextTexture); glEnable(GL_TEXTURE_2D); glEnable(GL_BLEND); glColor3ub(m_FontColor.Red(), m_FontColor.Green(), m_FontColor.Blue()); int x = r.x + m_NameLocationOffsetX, y = r.y + m_NameLocationOffsetY; float u = (float)w/m_iTextTextureWidth, v = (float)h/m_iTextTextureHeight; glBegin(GL_QUADS); glTexCoord2f(0, 0); glVertex2f(x, y); glTexCoord2f(u, 0); glVertex2f(x+w, y); glTexCoord2f(u, v); glVertex2f(x+w, y+h); glTexCoord2f(0, v); glVertex2f(x, y+h); glEnd(); glDisable(GL_BLEND); glDisable(GL_TEXTURE_2D); } } // Draw waypoint radar rings if activated if( m_iWaypointRangeRingsNumber && m_bShowWaypointRangeRings ) { double factor = 1.00; if( m_iWaypointRangeRingsStepUnits == 1 ) // nautical miles factor = 1 / 1.852; factor *= m_fWaypointRangeRingsStep; double tlat, tlon; wxPoint r1; ll_gc_ll( m_lat, m_lon, 0, factor, &tlat, &tlon ); cc1->GetCanvasPointPix( tlat, tlon, &r1 ); double lpp = sqrt( pow( (double) (r.x - r1.x), 2) + pow( (double) (r.y - r1.y), 2 ) ); int pix_radius = (int) lpp; wxPen ppPen1( m_wxcWaypointRangeRingsColour, platform_pen_width ); wxBrush saveBrush = dc.GetBrush(); wxPen savePen = dc.GetPen(); dc.SetPen( ppPen1 ); dc.SetBrush( wxBrush( m_wxcWaypointRangeRingsColour, wxBRUSHSTYLE_TRANSPARENT ) ); for( int i = 1; i <= m_iWaypointRangeRingsNumber; i++ ) dc.StrokeCircle( r.x, r.y, i * pix_radius ); dc.SetPen( savePen ); dc.SetBrush( saveBrush ); } if( m_bBlink ) g_blink_rect = CurrentRect_in_DC; // also save for global blinker // This will be useful for fast icon redraws CurrentRect_in_DC.x = r.x + hilitebox.x; CurrentRect_in_DC.y = r.y + hilitebox.y; CurrentRect_in_DC.width = hilitebox.width; CurrentRect_in_DC.height = hilitebox.height; if( m_bBlink ) g_blink_rect = CurrentRect_in_DC; // also save for global blinker }
void Route::Draw( ocpnDC& dc, ViewPort &vp, const LLBBox &box ) { if( pRoutePointList->empty() ) return; LLBBox test_box = GetBBox(); if( box.IntersectOut( test_box ) ) // Route is wholly outside window return; int width = g_route_line_width; if( m_width != WIDTH_UNDEFINED ) width = m_width; if( m_bVisible && m_bRtIsSelected ) { wxPen spen = *g_pRouteMan->GetSelectedRoutePen(); spen.SetWidth( width ); dc.SetPen( spen ); dc.SetBrush( *g_pRouteMan->GetSelectedRouteBrush() ); } else if ( m_bVisible ) { wxPenStyle style = wxPENSTYLE_SOLID; wxColour col; if( m_style != wxPENSTYLE_INVALID ) style = m_style; if( m_Colour == wxEmptyString ) { col = g_pRouteMan->GetRoutePen()->GetColour(); } else { for( unsigned int i = 0; i < sizeof( ::GpxxColorNames ) / sizeof(wxString); i++ ) { if( m_Colour == ::GpxxColorNames[i] ) { col = ::GpxxColors[i]; break; } } } dc.SetPen( *wxThePenList->FindOrCreatePen( col, width, style ) ); dc.SetBrush( *wxTheBrushList->FindOrCreateBrush( col, wxBRUSHSTYLE_SOLID ) ); } if( m_bVisible && m_bRtIsActive ) { wxPen spen = *g_pRouteMan->GetActiveRoutePen(); spen.SetWidth( width ); dc.SetPen( spen ); dc.SetBrush( *g_pRouteMan->GetActiveRouteBrush() ); } wxPoint rpt1, rpt2; if ( m_bVisible ) DrawPointWhich( dc, 1, &rpt1 ); wxRoutePointListNode *node = pRoutePointList->GetFirst(); RoutePoint *prp1 = node->GetData(); node = node->GetNext(); if ( !m_bVisible && prp1->m_bKeepXRoute ) prp1->Draw( dc ); while( node ) { RoutePoint *prp2 = node->GetData(); if ( !m_bVisible && prp2->m_bKeepXRoute ) prp2->Draw( dc ); else if (m_bVisible) prp2->Draw( dc, &rpt2 ); if ( m_bVisible ) { // Handle offscreen points bool b_2_on = vp.GetBBox().Contains( prp2->m_lat, prp2->m_lon ); bool b_1_on = vp.GetBBox().Contains( prp1->m_lat, prp1->m_lon ); //Simple case if( b_1_on && b_2_on ) RenderSegment( dc, rpt1.x, rpt1.y, rpt2.x, rpt2.y, vp, true, m_hiliteWidth ); // with arrows // In the cases where one point is on, and one off // we must decide which way to go in longitude // Arbitrarily, we will go the shortest way double pix_full_circle = WGS84_semimajor_axis_meters * mercator_k0 * 2 * PI * vp.view_scale_ppm; double dp = pow( (double) ( rpt1.x - rpt2.x ), 2 ) + pow( (double) ( rpt1.y - rpt2.y ), 2 ); double dtest; int adder; if( b_1_on && !b_2_on ) { if( rpt2.x < rpt1.x ) adder = (int) pix_full_circle; else adder = -(int) pix_full_circle; dtest = pow( (double) ( rpt1.x - ( rpt2.x + adder ) ), 2 ) + pow( (double) ( rpt1.y - rpt2.y ), 2 ); if( dp < dtest ) adder = 0; RenderSegment( dc, rpt1.x, rpt1.y, rpt2.x + adder, rpt2.y, vp, true, m_hiliteWidth ); } else if( !b_1_on ) { if( rpt1.x < rpt2.x ) adder = (int) pix_full_circle; else adder = -(int) pix_full_circle; float rxd = rpt2.x - ( rpt1.x + adder ); float ryd = rpt1.y - rpt2.y; dtest = rxd*rxd + ryd*ryd; if( dp < dtest ) adder = 0; RenderSegment( dc, rpt1.x + adder, rpt1.y, rpt2.x, rpt2.y, vp, true, m_hiliteWidth ); } } rpt1 = rpt2; prp1 = prp2; node = node->GetNext(); } }