Entities

entities/solid

#include "dxfio/entities/solid.hpp"

In DxfIO::Entities

struct SolidSOLID

A SOLID: a filled triangle or quadrilateral in the plane of its normal.

FieldType and defaultMeaning
RecordEntities::RecordThe layer, linetype, color and the rest every entity carries.
CornersDxfIO::CornersThe corners, in the entity's own coordinate system; a triangle repeats its third. AutoCAD fills them in Z order, so a square lists its last two swapped. Groups 10 to 13, 20 to 23, 30 to 33.
ThicknessdoubleHow far the entity is extruded along its normal. Group 39.
ExtrusionVector{Up}The normal of the plane the entity is drawn in. Groups 210, 220, 230.