void GerberImporter::linear_draw_circular_aperture(point_type startpoint, point_type endpoint, coordinate_type radius, unsigned int circle_points, ring_type& ring) { const coordinate_type dx = endpoint.x() - startpoint.x(); const coordinate_type dy = endpoint.y() - startpoint.y(); double angle_step; double offset; if (circle_points % 2 == 0) ++circle_points; if (startpoint.x() > endpoint.x()) swap(startpoint, endpoint); angle_step = 2 * bg::math::pi<double>() / circle_points; if (dx == 0) offset = bg::math::pi<double>(); else offset = atan(dy / dx) + bg::math::pi<double>() / 2; for (unsigned int i = 0; i < circle_points / 2 + 1; i++) ring.push_back(point_type(cos(angle_step * i + offset) * radius + startpoint.x(), sin(angle_step * i + offset) * radius + startpoint.y())); offset += bg::math::pi<double>(); for (unsigned int i = 0; i < circle_points / 2 + 1; i++) ring.push_back(point_type(cos(angle_step * i + offset) * radius + endpoint.x(), sin(angle_step * i + offset) * radius + endpoint.y())); bg::correct(ring); }
void GerberImporter::linear_draw_rectangular_aperture(point_type startpoint, point_type endpoint, coordinate_type width, coordinate_type height, ring_type& ring) { if (startpoint.y() > endpoint.y()) swap(startpoint, endpoint); if (startpoint.x() > endpoint.x()) { ring.push_back(point_type(startpoint.x() + width / 2, startpoint.y() + height / 2)); ring.push_back(point_type(startpoint.x() + width / 2, startpoint.y() - height / 2)); ring.push_back(point_type(startpoint.x() - width / 2, startpoint.y() - height / 2)); ring.push_back(point_type(endpoint.x() - width / 2, endpoint.y() - height / 2)); ring.push_back(point_type(endpoint.x() - width / 2, endpoint.y() + height / 2)); ring.push_back(point_type(endpoint.x() + width / 2, endpoint.y() + height / 2)); } else { ring.push_back(point_type(startpoint.x() + width / 2, startpoint.y() - height / 2)); ring.push_back(point_type(startpoint.x() - width / 2, startpoint.y() - height / 2)); ring.push_back(point_type(startpoint.x() - width / 2, startpoint.y() + height / 2)); ring.push_back(point_type(endpoint.x() - width / 2, endpoint.y() + height / 2)); ring.push_back(point_type(endpoint.x() + width / 2, endpoint.y() + height / 2)); ring.push_back(point_type(endpoint.x() + width / 2, endpoint.y() - height / 2)); } bg::correct(ring); }
void GerberImporter::draw_regular_polygon(point_type center, coordinate_type diameter, unsigned int vertices, coordinate_type offset, bool clockwise, ring_type& ring) { double angle_step; if (clockwise) angle_step = -2 * bg::math::pi<double>() / vertices; else angle_step = 2 * bg::math::pi<double>() / vertices; offset *= bg::math::pi<double>() / 180.0; for (unsigned int i = 0; i < vertices; i++) ring.push_back(point_type(cos(angle_step * i + offset) * diameter / 2 + center.x(), sin(angle_step * i + offset) * diameter / 2 + center.y())); ring.push_back(ring.front()); }