void
OZPreviewRenderer::Draw(Canvas &canvas, const ObservationZonePoint &oz,
const RasterPoint pt, unsigned radius,
const TaskLook &look,
const AirspaceRendererSettings &airspace_settings,
const AirspaceLook &airspace_look)
{
fixed scale;
GeoPoint center;
if (IsAncientHardware()) {
scale = fixed(radius) / ((const CylinderZone &)oz).GetRadius();
center = oz.GetReference();
} else {
OZBoundary boundary = oz.GetBoundary();
auto it = boundary.begin();
GeoBounds bounds(*it);
for (auto it_end = boundary.end(); it != it_end; ++it)
bounds.Extend(*it);
center = bounds.GetCenter();
fixed geo_heigth = GeoPoint(center.longitude, bounds.north).Distance(
GeoPoint(center.longitude, bounds.south));
fixed geo_width = GeoPoint(bounds.west, center.latitude).Distance(
GeoPoint(bounds.east, center.latitude));
scale = fixed(radius * 2) / std::max(geo_heigth, geo_width);
}
WindowProjection projection;
projection.SetScreenSize(radius * 2, radius * 2);
projection.SetScreenOrigin(pt.x, pt.y);
projection.SetGeoLocation(center);
projection.SetScale(scale);
projection.SetScreenAngle(Angle::Zero());
projection.UpdateScreenBounds();
OZRenderer ozv(look, airspace_look, airspace_settings);
ozv.Draw(canvas, OZRenderer::LAYER_SHADE, projection, oz, 1);
ozv.Draw(canvas, OZRenderer::LAYER_INACTIVE, projection, oz, 1);
ozv.Draw(canvas, OZRenderer::LAYER_ACTIVE, projection, oz, 1);
}
void
OZPreviewRenderer::Draw(Canvas &canvas, const ObservationZonePoint &oz,
const PixelPoint pt, unsigned radius,
const TaskLook &look,
const AirspaceRendererSettings &airspace_settings,
const AirspaceLook &airspace_look)
{
double scale;
GeoPoint center;
if (IsAncientHardware()) {
scale = double(radius) / ((const CylinderZone &)oz).GetRadius();
center = oz.GetReference();
} else {
OZBoundary boundary = oz.GetBoundary();
GeoBounds bounds = GeoBounds::Invalid();
for (auto i = boundary.begin(), end = boundary.end(); i != end; ++i)
bounds.Extend(*i);
center = bounds.GetCenter();
auto geo_width = bounds.GetGeoWidth();
auto geo_heigth = bounds.GetGeoHeight();
scale = double(radius * 2) / std::max(geo_heigth, geo_width);
}
WindowProjection projection;
projection.SetScreenSize({radius * 2, radius * 2});
projection.SetScreenOrigin(pt.x, pt.y);
projection.SetGeoLocation(center);
projection.SetScale(scale);
projection.SetScreenAngle(Angle::Zero());
projection.UpdateScreenBounds();
OZRenderer ozv(look, airspace_look, airspace_settings);
ozv.Draw(canvas, OZRenderer::LAYER_SHADE, projection, oz, 1);
ozv.Draw(canvas, OZRenderer::LAYER_INACTIVE, projection, oz, 1);
ozv.Draw(canvas, OZRenderer::LAYER_ACTIVE, projection, oz, 1);
}
void
OZWindow::OnPaint(Canvas &canvas)
{
canvas.ClearWhite();
if (oz == NULL)
return;
const int offset = 0;
roz.Draw(canvas, OZRenderer::LAYER_SHADE, projection, *oz, offset);
roz.Draw(canvas, OZRenderer::LAYER_INACTIVE, projection, *oz, offset);
roz.Draw(canvas, OZRenderer::LAYER_ACTIVE, projection, *oz, offset);
/* debugging for ObservationZone::GetBoundary() */
Pen pen(1, COLOR_RED);
canvas.Select(pen);
const OZBoundary boundary = oz->GetBoundary();
for (auto i = boundary.begin(), end = boundary.end(); i != end; ++i) {
RasterPoint p = projection.GeoToScreen(*i);
canvas.DrawLine(p.x - 3, p.y - 3, p.x + 3, p.y + 3);
canvas.DrawLine(p.x + 3, p.y - 3, p.x - 3, p.y + 3);
}
}