Method for creation of architectural space objects for area and volume calculation

• US 7,629,985 B2
• Filed: 01/26/2006
• Issued: 12/08/2009
• Est. Priority Date: 01/26/2006
• Status: Active Grant

• Current Assignee: Autodesk, Inc.
• Original Assignee: Autodesk, Inc.
• Inventors: Wu, Qiong, Oscarson, Anna, Arvin, Scott, McArdle, Paul
• Primary Examiner(s): Brier; Jeffery A
• Application Number:
  US11/340,116
• Publication Number:
  US 20070171223A1
• Time in Patent Office: 1,412 Days
• Field of Search: 345/619
• US Class Current: 345/619
• CPC Class Codes: G06F 30/13 Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• CPC Class Codes: G06T 19/00 Manipulating 3D models or images for computer graphics
• CPC Class Codes: G06T 2210/04 Architectural design, interior design

Abstract

Embodiments of the invention allow users to generate and maintain space objects in a computer-aided design model representing regions bounded by a set of drawing elements included in the model. The space object contains the geometry of such a bounded region and may be used to calculate values such as area and volume associated with the region. Additionally, each space object may be associated with the set of drawing elements bounding the region represented by the space object such that any changes to one of the associated bounding elements causes the geometry of the space object to be updated automatically to reflect these changes. Areas and volumes calculated from the space object geometry may conform to established standards regarding the calculation of gross, net and useable areas of a building or other structure.

Claims

1. A computer-implemented method for performing calculations related to a region of open space in a computer-aided design (CAD) model generated on a computer within a CAD application environment, the method comprising:

identifying a region within the CAD model at least partially bounded by a set of drawing elements, wherein the CAD model is displayed on a display device;

generating a space object representing the region, wherein the geometry of the space object is determined based on the set of drawing elements bounding the region, and wherein the space object is an element within the CAD model configured to represent properties of the region;

associating the space object with the set of drawing elements bounding the region;

calculating at least one area associated with the region based on the geometry of the space object;

automatically updating the geometry of the space object in response to a change to at least one of the drawing elements; and

displaying on the display device the set of drawing elements within the CAD model, including the change to the at least one drawing element, and the updated space object.

2. The computer-implemented method of claim 1, wherein the set of drawing elements is selected from architecture, engineering, construction elements, or line and arc drawing elements included in the CAD model.

3. The computer-implemented method of claim 1 wherein calculating at least one area comprises calculating the gross, net, and useable areas according to an externally defined standard.

4. The computer-implemented method of claim 1, wherein at least a portion of the region at least partially bounded by the set of drawing elements includes a non-physical boundary element.

5. The computer-implemented method of claim 1, wherein the change to one of the associated drawing elements comprises a modification to the geometry or position of a drawing element in the CAD model.

6. The computer-implemented method of claim 1, wherein the change to one of the associated drawing elements comprises removing a drawing element from the CAD model, and wherein the step of updating the geometry of the space object comprises merging the geometries of two or more space objects associated with the removed drawing object.

7. The computer-implemented method of claim 1, wherein the change to one of the associated drawing elements comprises adding a drawing element to the CAD model, and wherein the step of updating the geometry of the space object comprises, dividing the space object into two or more space objects.

8. The computer-implemented method of claim 1, wherein a user interacts with a graphical user interface to identify the region within the CAD model bounded by a set of drawing elements.

9. The computer-implemented method of claim 1, wherein the one area is calculated based on offset values determined by a space style associated with the CAD model or calculated based on points specifying a two-dimensional bounding plane.

10. A computer-readable storage medium, excluding carrier waves or signals, storing instructions that, when executed by a processor, cause the processor to calculate areas related to a region of open space in a computer-aided design (CAD) model generated on a computer within a CAD application environment, by performing the steps of:

identifying a region within the CAD model at least partially bounded by a set of drawing elements, wherein the CAD model is displayed on a display device;

generating a space object representing the region, wherein the geometry of the space object is determined based on the set of drawing elements bounding the region, and wherein the space object is an element within the CAD model configured to represent properties of the region;

associating the space object with the set of drawing elements bounding the region;

calculating at least one area associated with the region based on the geometry of the space object;

automatically updating the geometry of the space object in response to a change to at least one of the drawing elements; and

displaying on the display device the set of drawing elements within the CAD model, including the change to the at least one drawing element, and the updated space object.

11. The computer-readable storage medium of claim 10, wherein the set of drawing elements is selected from architecture, engineering, construction elements, or line and arc drawing elements included in the CAD model.

12. The computer-readable storage medium of claim 10, wherein at least a portion of the region at least partially bounded by the set of drawing elements includes a non-physical boundary element.

13. The computer-readable storage medium of claim 10, wherein the change to one of the associated drawing elements comprises a modification to the geometry or position of a drawing element in the CAD model.

14. The computer-readable storage medium of claim 10, wherein the change to one of the associated drawing elements comprises removing a drawing element from the CAD model, and wherein the step of updating the geometry of the space object comprises merging the geometries of two or more space objects associated with the removed drawing object.

15. The computer-readable storage medium of claim 10, wherein the change to one of the associated drawing elements comprises, adding a drawing element to the CAD model, and wherein the step of updating the geometry of the space object comprises, dividing the space object into two or more space objects.

16. The computer-readable storage medium of claim 10, wherein a user interacts with a graphical user interface to identify the region within the CAD model bounded by a set of drawing elements.

17. The computer-readable storage medium of claim 10, wherein the one area is calculated based on offset values determined by a space style associated with the CAD model or calculated based on points specifying a two-dimensional bounding plane.

18. A computing device that is part of a computer-aided design (CAD) application environment, the computing device comprising:

a processor;

a display device; and

a memory configured to store an application that includes instructions which, when executed by the processor, cause the processor to perform operations for performing calculations related to a region of open space in a CAD model that is displayed on the display device, by performing the steps of;

identifying a region within the CAD model at least partially bounded by a set of drawing elements,

generating a space object representing the region, wherein the geometry of the space object is determined based on the set of drawing elements bounding the region, and wherein the space object is an element within the CAD model configured to represent properties of the region,

associating the space object with the set of drawing elements bounding the region,

calculating at least one area associated with the region based on the geometry of the space object,

automatically updating the geometry of the space object in response to a change to at least one of the drawing elements, and

displaying on the display device the set of drawing elements within the CAD model, including the change to the at least one drawing, and the updated space object.

19. The computing device of claim 18, wherein the set of drawing elements is selected from architecture, engineering, construction elements, or line and arc drawing elements included in the CAD model.

20. The computing device of claim 18, wherein the change to one of the associated drawing elements comprises removing a drawing element from the CAD model, and wherein the step of updating the geometry of the space object comprises merging the geometries of two or more space objects associated with the removed drawing object.

21. The computing device of claim 18, wherein the change to one of the associated drawing elements comprises adding a drawing element to the CAD model, and wherein the step of updating the geometry of the space object comprises, dividing the space object into two or more space objects.