CAD preparation

The architects and draughtsmen at dotscene Real Estate Mapping work in ArchiCAD, AutoCAD, AutoCAD Architecture, Revit and Allplan.
Our specialists create CAD models in various levels of detail from the 3D laser point clouds.

CAD preparation detail level I

Area management

The CAD data prepared in level I detail serves as the basis for area representations of properties (e.g. real estate agent floor plans, bases for preliminary designs). The CAD preparation of the captured 3D laser data takes place in 2D at this level of detail and is then converted to a PDF plan folder and the common formats (PDF, DXF, DWG).

2D CAD plan documents in detail level I include:

  • Representation of the external walls with position and external dimensions of the windows and doors (simple openings without representation of the stops and subdivisions).
  • Floor plan structure is shown via room stamps, indication of NRF, clear room heights (lowest room height), and use.

Examples for schematic elaboration:

  • Door and window openings are shown schematically, no representation of subdivisions or reveals.
  • Floor plans are shown with dimensions
  • Building component heights are not taken into account
  • Any building components not relevant for area calculations are not taken into account

Result:

  • Schematic 2D floor plans in common formats (PDF, DWG, DXF).
CAD preparation detail level II

Project development / building application

Detailliertes CAD-Modell

In detail level II, the laser data is converted into a schematic 3D CAD model. The 3D model created this way serves as the base plan for a preliminary draft or design and later for approval planning.

The 3D CAD model in detail level II includes:

  • Representation of all exterior and interior walls, as well as all components relevant for area calculation (supports, niches, roof slopes, etc.).
  • All openings are represented schematically
  • Simplified representation of structural elements
  • Course of the terrain along the outer edge of the building

Examples for schematic elaboration:

  • E.g. Wooden beam ceiling is shown as a “package”, i.e. lower edge of beam to upper edge of FFB.
  • E.g. Roof structure is shown as a “package”, i.e. from the lower edge of the rafters to the upper edge of the roof covering.
  • Slopes are not shown, i.e. for rooms with slopes, the lowest clear room heights are given.

Result:

  • Complete schematic 3D model in the common CAD programs (AutoCAD; REVIT; ArchiCAD; ALLPLAN).
  • Plan documents (floor plans, sections, views) (PDF, DWG, DXF)
CAD preparation detail level III

Building application / works planning

Detailstufe von Gelaende farbig

In detail level III, the laser data is converted into a detailed 3D CAD model.
The 3D CAD model generated this way serves in practice as a basis for planning in the approval and implementation stages.
The as-built survey in detail level III is recommended for conversion measures that require a more detailed base plan.

The 3D CAD model in detail level III includes:

  • Representation of all exterior and interior walls, as well as all visible structural elements.
  • All openings are represented in detail (window reveals, type of opening, radiator niches, windowsill, etc.).
  • Components of deformation are represented in an approximate, deformation-appropriate manner.
  • Detailed terrain (approx. 5-10 metres around the building).

Examples for detailed elaboration:

  • E.g. Wood beam ceiling is worked out from several components.
  • E.g. Roof construction is worked out in detail. All visible structural components are shown (rafters, purlins, headbands, etc.).
  • E.g. Slopes in the floor are shown.

Result:

  • Complete detailed 3D model in the common CAD programs (AutoCAD; REVIT; ArchiCAD; ALLPLAN).
  • Plan documents (floor plans, sections, views) as PDF, DWG and DXF