void
TaskPointRenderer::DrawIsoline(const AATPoint &tp)
{
if (!tp.valid() || !IsTargetVisible(tp))
return;
AATIsolineSegment seg(tp, task_projection);
if (!seg.IsValid())
return;
#define fixed_twentieth fixed(1.0 / 20.0)
GeoPoint start = seg.Parametric(fixed_zero);
GeoPoint end = seg.Parametric(fixed_one);
if (m_proj.GeoToScreenDistance(start.Distance(end)) <= 2)
return;
RasterPoint screen[21];
screen[0] = m_proj.GeoToScreen(start);
screen[20] = m_proj.GeoToScreen(end);
for (unsigned i = 1; i < 20; ++i) {
fixed t = i * fixed_twentieth;
GeoPoint ga = seg.Parametric(t);
screen[i] = m_proj.GeoToScreen(ga);
}
canvas.Select(task_look.isoline_pen);
canvas.SetBackgroundTransparent();
canvas.DrawPolyline(screen, 21);
canvas.SetBackgroundOpaque();
}
inline void
TaskPointRenderer::DrawIsoline(const AATPoint &tp)
{
if (!tp.valid() || !IsTargetVisible(tp))
return;
AATIsolineSegment seg(tp, flat_projection);
if (!seg.IsValid())
return;
GeoPoint start = seg.Parametric(0);
GeoPoint end = seg.Parametric(1);
if (m_proj.GeoToScreenDistance(start.DistanceS(end)) <= 2)
return;
BulkPixelPoint screen[21];
screen[0] = m_proj.GeoToScreen(start);
screen[20] = m_proj.GeoToScreen(end);
for (unsigned i = 1; i < 20; ++i) {
constexpr double twentieth = 1.0 / 20.0;
auto t = i * twentieth;
GeoPoint ga = seg.Parametric(t);
screen[i] = m_proj.GeoToScreen(ga);
}
canvas.Select(task_look.isoline_pen);
canvas.SetBackgroundTransparent();
canvas.DrawPolyline(screen, 21);
canvas.SetBackgroundOpaque();
}
void
TaskPointRenderer::DrawTarget(const TaskPoint &tp)
{
if (!IsTargetVisible(tp))
return;
RasterPoint sc;
if (m_proj.GeoToScreenIfVisible(tp.GetLocationRemaining(), sc))
task_look.target_icon.Draw(canvas, sc.x, sc.y);
}
