5. COMPONENTS OF THE BASE BUILDING DRAWING<br>

# 5. Components of the base building drawing

## 5.1. Introduction

The base building drawing may consists of:

- plan view sheets with the building structure displayed (walls, rooms, etc.)

- schematic view sheets with the cross section of the floors.

! The arrangement of rooms is not represented in the schematic views.

The graphical editor enables drawing plan views of individual storeys of the building for which the system is designed and/or for which we want to do heat loss calculations. The plan view of a storey is the indispensable basis for radiant heating design.

It is possible to import a plan view from a file created with other software application, e,g, a CAD application. A DXF/DWG file may be imported with the drawing interpreted or not. Both operations are described in section 7.

The most prominent feature of the algorithm of loading DWG/DXF is the possibility of interpreting them, i.e. identifying and inserting into the project walls, windows and doors as program objects (equivalent to those inserted manually) and identifying the structure of rooms on a storey. The efficiency of identifying the structure of rooms depends heavily on the understanding of the structure of layers in the file and on care taken to make the drawing in the graphical application. Several rooms, for instance, may be combined into one when no door is inserted in the wall in the drawing (or if such door actually does not exist). In such or similar cases there are various ways of imposing a room structure in the drawing, which is discussed further in this manual.

! Horizontal partitions – floors on ground, roofs and floors – are not created during import. These should be inserted manually in the graphical editor (in the form of graphical partitions) or in tables in Instal-heat&energy (as tabular partitions).

The program enables loading any drawing (e.g. in EMF/WMF or BMP format, and also in DWG and DXF format – without interpreting), which may form a background for drawing the structure of a storey using components available in the program.