//---------------------------------------------------------------
void IsoLine::drawIsoLine(GRIBOverlayFactory *pof, wxDC *dc, PlugIn_ViewPort *vp, bool bHiDef)
{
int nsegs = trace.size();
if(nsegs < 1)
return;
GetGlobalColor ( _T ( "UITX1" ), &isoLineColor );
#if wxUSE_GRAPHICS_CONTEXT
wxGraphicsContext *pgc = NULL;
#endif
if(dc) {
wxPen ppISO ( isoLineColor, 2 );
#if wxUSE_GRAPHICS_CONTEXT
wxMemoryDC *pmdc;
pmdc= wxDynamicCast(dc, wxMemoryDC);
pgc = wxGraphicsContext::Create(*pmdc);
pgc->SetPen(ppISO);
#endif
dc->SetPen(ppISO);
} else { /* opengl */
#ifdef ocpnUSE_GL
if(m_pixelMM > 0.2){ // pixel size large enough to render well
// Enable anti-aliased lines, at best quality
glEnable( GL_LINE_SMOOTH );
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glHint( GL_LINE_SMOOTH_HINT, GL_NICEST );
glLineWidth( 2 );
}
else{
glLineWidth( 0.4/m_pixelMM); // set a target line width by MM
}
glColor4ub(isoLineColor.Red(), isoLineColor.Green(), isoLineColor.Blue(),
255/*isoLineColor.Alpha()*/);
glBegin( GL_LINES );
#endif
}
std::list<Segment *>::iterator it;
//---------------------------------------------------------
// Dessine les segments
//---------------------------------------------------------
for (it=trace.begin(); it!=trace.end(); it++)
{
Segment *seg = *it;
if(vp->m_projection_type == PI_PROJECTION_MERCATOR ||
vp->m_projection_type == PI_PROJECTION_EQUIRECTANGULAR) {
/* skip segments that go the wrong way around the world */
double sx1 = seg->px1, sx2 = seg->px2;
if(sx2 - sx1 > 180)
sx2 -= 360;
else if(sx1 - sx2 > 180)
sx1 -= 360;
if((sx1+180 < vp->clon && sx2+180 > vp->clon) ||
(sx1+180 > vp->clon && sx2+180 < vp->clon) ||
(sx1-180 < vp->clon && sx2-180 > vp->clon) ||
(sx1-180 > vp->clon && sx2-180 < vp->clon))
continue;
}
wxPoint ab;
GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
wxPoint cd;
GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);
if(dc) {
#if wxUSE_GRAPHICS_CONTEXT
if(bHiDef && pgc)
pgc->StrokeLine(ab.x, ab.y, cd.x, cd.y);
else
#endif
dc->DrawLine(ab.x, ab.y, cd.x, cd.y);
} else { /* opengl */
#ifdef ocpnUSE_GL
glVertex2d(ab.x, ab.y);
glVertex2d(cd.x, cd.y);
#endif
}
}
#if 0
int text_sx, text_sy;
dc.GetTextExtent(_T("10000"), &text_sx, &text_sy);
// double m = text_sy / 2;
int label_size = text_sx;
int label_space = 400;
// double coef = .01;
int len = label_space/4;
// Allocate an array big enough
wxPoint *pPoints = new wxPoint[nsegs+1];
MySegListList::Node *listnode;
listnode = m_SegListList.GetFirst();
while(listnode)
{
MySegList *listsort = listnode->GetData();
// Fill in the array
MySegList::Node *node;
Segment *seg;
node = listsort->GetFirst();
if(node)
{
seg = node->GetData();
// wxPoint ab = vp->GetMercatorPixFromLL(seg->py1, seg->px1);
// wxPoint ab(0,0);
wxPoint ab;
GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
pPoints[0] = ab;
}
int ip=1;
while (node)
{
seg = node->GetData();
// wxPoint cd = vp->GetMercatorPixFromLL(seg->py2, seg->px2);
// wxPoint cd(0,0);
wxPoint cd;
GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);
pPoints[ip++] = cd;
node=node->GetNext();
}
int np = listsort->GetCount() + 1;
if(np > 1)
{
// Test code
// dc.DrawLines(np, pPoints);
GenerateSpline(np, pPoints);
// Test Code
// dc.DrawLines(&ocpn_wx_spline_point_list, 0, 0 );
bool bDrawing = true;
wxPoint lstart;
wxList::compatibility_iterator snode = ocpn_wx_spline_point_list.GetFirst();
wxPoint *point0 = (wxPoint *)snode->GetData();
snode=snode->GetNext();
while (snode)
{
wxPoint *point = (wxPoint *)snode->GetData();
ClipResult res = cohen_sutherland_line_clip_i ( &point0->x, &point0->y, &point->x, &point->y,
0, vp->pix_width, 0, vp->pix_height );
if ( res != Invisible )
{
int dl = (int)sqrt(
(double)((point0->x - point->x) * (point0->x - point->x))
+(double)((point0->y - point->y) * (point0->y - point->y)));
if(bDrawing)
{
len += dl;
if(len > label_space)
{
bDrawing = false;
len = 0;
lstart = *point;
}
}
else
{
len += dl;
if(len > label_size)
{
bDrawing = true;
len = 0;
}
}
}
*point0 = *point;
snode=snode->GetNext();
}
ClearSplineList();
}
listnode = listnode->GetNext(); // Next continuous chain
}
delete[] pPoints;
#endif
#if wxUSE_GRAPHICS_CONTEXT
delete pgc;
#endif
if(!dc) /* opengl */
glEnd();
}
void Route::RenderSegment( ocpnDC& dc, int xa, int ya, int xb, int yb, ViewPort &VP,
bool bdraw_arrow, int hilite_width )
{
// Get the dc boundary
int sx, sy;
dc.GetSize( &sx, &sy );
// Try to exit early if the segment is nowhere near the screen
wxRect r( 0, 0, sx, sy );
wxRect s( xa, ya, 1, 1 );
wxRect t( xb, yb, 1, 1 );
s.Union( t );
if( !r.Intersects( s ) ) return;
// Clip the line segment to the dc boundary
int x0 = xa;
int y0 = ya;
int x1 = xb;
int y1 = yb;
// If hilite is desired, use a Native Graphics context to render alpha colours
// That is, if wxGraphicsContext is available.....
if( hilite_width ) {
if( Visible == cohen_sutherland_line_clip_i( &x0, &y0, &x1, &y1, 0, sx, 0, sy ) ) {
wxPen psave = dc.GetPen();
wxColour y = GetGlobalColor( _T ( "YELO1" ) );
wxColour hilt( y.Red(), y.Green(), y.Blue(), 128 );
wxPen HiPen( hilt, hilite_width, wxSOLID );
dc.SetPen( HiPen );
dc.StrokeLine( x0, y0, x1, y1 );
dc.SetPen( psave );
dc.StrokeLine( x0, y0, x1, y1 );
}
} else {
if( Visible == cohen_sutherland_line_clip_i( &x0, &y0, &x1, &y1, 0, sx, 0, sy ) )
dc.StrokeLine( x0, y0, x1, y1 );
}
if( bdraw_arrow ) {
// Draw a direction arrow
double theta = atan2( (double) ( yb - ya ), (double) ( xb - xa ) );
theta -= PI / 2;
wxPoint icon[10];
double icon_scale_factor = 100 * VP.view_scale_ppm;
icon_scale_factor = fmin ( icon_scale_factor, 1.5 ); // Sets the max size
icon_scale_factor = fmax ( icon_scale_factor, .10 );
// Get the absolute line length
// and constrain the arrow to be no more than xx% of the line length
double nom_arrow_size = 20.;
double max_arrow_to_leg = .20;
double lpp = sqrt( pow( (double) ( xa - xb ), 2 ) + pow( (double) ( ya - yb ), 2 ) );
double icon_size = icon_scale_factor * nom_arrow_size;
if( icon_size > ( lpp * max_arrow_to_leg ) ) icon_scale_factor = ( lpp * max_arrow_to_leg )
/ nom_arrow_size;
for( int i = 0; i < 7; i++ ) {
int j = i * 2;
double pxa = (double) ( s_arrow_icon[j] );
double pya = (double) ( s_arrow_icon[j + 1] );
pya *= icon_scale_factor;
pxa *= icon_scale_factor;
double px = ( pxa * sin( theta ) ) + ( pya * cos( theta ) );
double py = ( pya * sin( theta ) ) - ( pxa * cos( theta ) );
icon[i].x = (int) ( px ) + xb;
icon[i].y = (int) ( py ) + yb;
}
wxPen savePen = dc.GetPen();
dc.SetPen( *wxTRANSPARENT_PEN );
dc.StrokePolygon( 6, &icon[0], 0, 0 );
dc.SetPen( savePen );
}
}
//---------------------------------------------------------------
void IsoLine::drawIsoLine(GRIBOverlayFactory *pof, wxDC &dc, PlugIn_ViewPort *vp, bool bShowLabels, bool bHiDef)
{
int nsegs = trace.size();
if(nsegs < 1)
return;
GetGlobalColor ( _T ( "UITX1" ), &isoLineColor );
wxPen ppISO ( isoLineColor, 2 );
#if wxUSE_GRAPHICS_CONTEXT
wxMemoryDC *pmdc;
// pmdc = dynamic_cast<wxMemoryDC*>(&dc);
pmdc= wxDynamicCast(&dc, wxMemoryDC);
wxGraphicsContext *pgc = wxGraphicsContext::Create(*pmdc);
pgc->SetPen(ppISO);
#endif
dc.SetPen(ppISO);
std::list<Segment *>::iterator it;
//---------------------------------------------------------
// Dessine les segments
//---------------------------------------------------------
for (it=trace.begin(); it!=trace.end(); it++)
{
Segment *seg = *it;
{
// wxPoint ab = vp->GetMercatorPixFromLL(seg->py1, seg->px1);
// wxPoint cd = vp->GetMercatorPixFromLL(seg->py2, seg->px2);
wxPoint ab;
GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
wxPoint cd;
GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);
/// ClipResult res = cohen_sutherland_line_clip_i ( &ab.x, &ab.y, &cd.x, &cd.y,
/// 0, vp->pix_width, 0, vp->pix_height );
/// if ( res != Invisible )
{
#if wxUSE_GRAPHICS_CONTEXT
if(bHiDef && pgc)
pgc->StrokeLine(ab.x, ab.y, cd.x, cd.y);
else
dc.DrawLine(ab.x, ab.y, cd.x, cd.y);
#else
dc.DrawLine(ab.x, ab.y, cd.x, cd.y);
#endif
}
}
}
//#endif
int text_sx, text_sy;
dc.GetTextExtent(_T("10000"), &text_sx, &text_sy);
// double m = text_sy / 2;
int label_size = text_sx;
int label_space = 400;
// double coef = .01;
int len = label_space/4;
// Allocate an array big enough
wxPoint *pPoints = new wxPoint[nsegs+1];
MySegListList::Node *listnode;
listnode = m_SegListList.GetFirst();
while(listnode)
{
MySegList *listsort = listnode->GetData();
// Fill in the array
MySegList::Node *node;
Segment *seg;
node = listsort->GetFirst();
if(node)
{
seg = node->GetData();
// wxPoint ab = vp->GetMercatorPixFromLL(seg->py1, seg->px1);
// wxPoint ab(0,0);
wxPoint ab;
GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
pPoints[0] = ab;
}
int ip=1;
while (node)
{
seg = node->GetData();
// wxPoint cd = vp->GetMercatorPixFromLL(seg->py2, seg->px2);
// wxPoint cd(0,0);
wxPoint cd;
GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);
pPoints[ip++] = cd;
node=node->GetNext();
}
int np = listsort->GetCount() + 1;
if(np > 1)
{
// Test code
// dc.DrawLines(np, pPoints);
GenerateSpline(np, pPoints);
// Test Code
// dc.DrawLines(&ocpn_wx_spline_point_list, 0, 0 );
bool bDrawing = true;
wxPoint lstart;
wxList::compatibility_iterator snode = ocpn_wx_spline_point_list.GetFirst();
wxPoint *point0 = (wxPoint *)snode->GetData();
snode=snode->GetNext();
while (snode)
{
wxPoint *point = (wxPoint *)snode->GetData();
ClipResult res = cohen_sutherland_line_clip_i ( &point0->x, &point0->y, &point->x, &point->y,
0, vp->pix_width, 0, vp->pix_height );
if ( res != Invisible )
{
int dl = (int)sqrt(
(double)((point0->x - point->x) * (point0->x - point->x))
+(double)((point0->y - point->y) * (point0->y - point->y)));
if(bDrawing)
{
len += dl;
if(len > label_space)
{
bDrawing = false;
len = 0;
lstart = *point;
}
}
else
{
len += dl;
if(len > label_size)
{
bDrawing = true;
len = 0;
#if 0
if(bShowLabels)
{
double label_angle = atan2((double)(lstart.y - point->y),
(double)(point->x - lstart.x)) * 180. / PI;
wxString label;
label.Printf(_T("%d"), (int)(value*coef+0.5));
double xs = lstart.x - (m * sin(label_angle * PI / 180.));
double ys = lstart.y - (m * cos(label_angle * PI / 180.));
dc.DrawRotatedText(label, (int)xs, (int)ys, label_angle);
}
#endif
}
}
#if 0
// if(bDrawing || !bShowLabels)
{
if(bHiDef)
dc.StrokeLine(point0->x, point0->y, point->x, point->y);
else
dc.DrawLine(point0->x, point0->y, point->x, point->y);
}
#endif
}
*point0 = *point;
snode=snode->GetNext();
}
ClearSplineList();
}
listnode = listnode->GetNext(); // Next continuous chain
}
delete[] pPoints;
#if wxUSE_GRAPHICS_CONTEXT
delete pgc;
#endif
}