void add_path(T & path)
{
marker_placement_enum placement_method = get<marker_placement_enum>(sym_, keys::markers_placement_type, feature_, vars_, MARKER_POINT_PLACEMENT);
double opacity = get<double>(sym_, keys::opacity, feature_, vars_, 1.0);
double spacing = get<double>(sym_, keys::spacing, feature_, vars_, 100.0);
double max_error = get<double>(sym_, keys::max_error, feature_, vars_, 0.2);
bool allow_overlap = get<bool>(sym_, keys::allow_overlap, feature_, vars_, false);
bool ignore_placement = get<bool>(sym_, keys::ignore_placement, feature_, vars_, false);
box2d<double> bbox_(0,0, src_.width(),src_.height());
markers_placement_finder<T, label_collision_detector4> placement_finder(
placement_method,
path,
bbox_,
marker_trans_,
detector_,
spacing * scale_factor_,
max_error,
allow_overlap);
double x, y, angle = .0;
while (placement_finder.get_point(x, y, angle, ignore_placement))
{
agg::trans_affine matrix = marker_trans_;
matrix.rotate(angle);
matrix.translate(x, y);
ctx_.add_image(matrix, src_, opacity);
}
}
void add_path(T & path)
{
marker_placement_e placement_method = sym_.get_marker_placement();
box2d<double> bbox_(0,0, src_.width(),src_.height());
if (placement_method != MARKER_LINE_PLACEMENT)
{
double x = 0;
double y = 0;
if (placement_method == MARKER_INTERIOR_PLACEMENT)
{
if (!label::interior_position(path, x, y))
return;
}
else
{
if (!label::centroid(path, x, y))
return;
}
agg::trans_affine matrix = marker_trans_;
matrix.translate(x,y);
box2d<double> transformed_bbox = bbox_ * matrix;
if (sym_.get_allow_overlap() ||
detector_.has_placement(transformed_bbox))
{
render_raster_marker(matrix);
if (!sym_.get_ignore_placement())
{
detector_.insert(transformed_bbox);
}
if (!placed_)
{
pixmap_.add_feature(feature_);
placed_ = true;
}
}
}
else
{
markers_placement<T, label_collision_detector4> placement(path, bbox_, marker_trans_, detector_,
sym_.get_spacing() * scale_factor_,
sym_.get_max_error(),
sym_.get_allow_overlap());
double x, y, angle;
while (placement.get_point(x, y, angle))
{
agg::trans_affine matrix = marker_trans_;
matrix.rotate(angle);
matrix.translate(x, y);
render_raster_marker(matrix);
if (!placed_)
{
pixmap_.add_feature(feature_);
placed_ = true;
}
}
}
}