Graphical method for modeling and estimating construction costs

• US 6,037,945 A
• Filed: 12/16/1997
• Issued: 03/14/2000
• Est. Priority Date: 12/16/1997
• Status: Expired due to Term

• Current Assignee: Xactware Solutions, Inc. (Verisk Analytics Incorporated)
• Original Assignee: Xactware
• Inventors: Loveland, James B.
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): ROSSI, JEFFREY A
• Application Number:
  US08/991,148
• Time in Patent Office: 819 Days
• Field of Search: 364/468.14, 364/512, 345/420
• US Class Current: 345/420
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Abstract

A method and system for modeling rooms or chambers in a structure for intuitive and accurate estimation of process parameters (e.g., material and labor costs for performing the process) associated with the rooms. A graphical user interface to an estimation program enables an estimator to insert a model of a room and thereafter morph and mold the model to approximate the room undergoing estimation. The model is represented as a polyhedron having a plurality of planes that may be assigned attributes such as floors, walls and ceilings. During the morphing process, the modified and other affected planes of the polyhedron are continually revised to maintain the integrity of the closed volume represented by the polyhedron. Upon completion of the morphing process of the model, the model may be queried by the estimator for performing estimations of target processes with the assigned attributes of the various planes intelligently returning areas and other parameters associated with the estimation polyhedron employed as an approximation of the room or chamber undergoing estimation.

Claims

1. A method for computerized modeling of a chamber to enable automatic computerized estimation of chamber attributes, comprising the steps of:

(a) selecting a default polyhedron as a cost estimation polyhedron, said estimation polyhedron having a plurality of facets with each facet having at least one characteristic and comprised of at least one estimation attribute including an area;

(b) altering at least one of said characteristics of a selected facet of said plurality of facets of said estimation polyhedron to approximate said chamber undergoing estimation;

(c) revising in real time said at least one estimation attribute of said altered facet and adjacent ones of said plurality of facets of said estimation polyhedron as modified by said altering step; and

(d) repeating said altering and revising steps until said estimation polyhedron accurately depicts said chamber undergoing estimation.

2. The method as recited in claim 1, wherein:

(a) said altering step further comprises the step of when additional facets better approximate said chamber undergoing approximation, partitioning said selected facet of said estimation polyhedron into at least a first and second altered facets to provide an improved estimation of said chamber undergoing estimation; and

(b) said revising step further comprises the step of from said at least first and second altered facets of said selected facet, including additional estimation attributes corresponding to said first and second altered facets.

3. The method as recited in claim 1, further comprising the step of:

(a) defining said chamber as a room within a building; and

(b) defining said chamber attributes to include a surface area correlating to said plurality of facets of said estimation polyhedron.

4. The method as recited in claim 3, wherein said defining said chamber attribute step further comprises the steps of:

(a) assigning one of said plurality of facets of said estimation polyhedron a floor attribute of said room;

(b) assigning each of others of said plurality of facets of said estimation polyhedron adjacent to said facet having said floor attribute a wall attribute; and

(c) assigning one of said plurality of facets of said estimation polyhedron adjacent to said ones of said plurality of facets having said wall attribute a ceiling attribute.

5. The method as recited in claim 1, wherein said selecting a default polyhedron further comprises the step of:

(a) defining said default polyhedron to include;

i. at least 4 facets each defined by a plurality of vertices shared by others of said at least 4 facets;

ii. a surface area for each of said at least 4 facets; and

iii. a volume of said default polyhedron as bounded by each of said at least 4 facets.

6. A method for graphically estimating attributes of a room, comprising the steps of:

(a) selecting a default polyhedron as a cost estimation polyhedron to approximate said attributes of said room, said estimation polyhedron having a plurality of facets, each facet having at least one characteristic and comprised of at least one estimation attribute including an area;

(b) altering at least one characteristic of one of said plurality of facets of said estimation polyhedron to approximate said room undergoing estimation;

(c) revising in real time said at least one estimation attribute of said altered facet and adjacent facets of said estimation polyhedron;

(d) repeating said altering and revising steps until said estimation polyhedron accurately depicts said room undergoing estimation; and

a. listing said estimation attributes of said estimation polyhedron as said attributes of said room.

7. The method as recited in claim 6, wherein said selecting step further comprises the steps of:

(a) assigning one of said plurality of facets of said estimation polyhedron a floor attribute of said room;

(b) assigning each of others of said plurality of facets of said estimation polyhedron adjacent to said facet having said floor attribute a wall attribute; and

(c) assigning one of said plurality of facets of said estimation polyhedron adjacent to said ones of said plurality of facets having said wall attribute a ceiling attribute.

8. The method as recited in claim 6, wherein:

(a) said altering step further comprises the step of when additional facets better approximate said chamber undergoing approximation, partitioning said selected facet of said estimation polyhedron into at least a first and second altered facets to provide an improved estimation of said chamber undergoing estimation; and

(b) said revising step further comprises the step of from said at least first and second altered facets of said selected facet, including additional estimation attributes corresponding to said first and second morphed facets.

9. The method as recited in claim 6, further comprising the steps of hierarchically grouping additional rooms into levels and grouping a plurality of levels into a structure.

10. A graphical method for estimating material requirements for a room within a structure, wherein said room is comprised of a plurality of planes, comprising:

(a) displaying a default surface polygon, said surface polygon forming one plane of a plurality of planes of an estimation polyhedron for approximating said room, said plurality of planes each further having a characteristic and an estimation attribute assigned thereto;

(b) altering said characteristic of said default surface polygon into an altered polygon to approximate a plane of said room undergoing estimation;

(c) revising said estimation attribute of said altered polygon and adjacent ones of said plurality of planes affected by said altering step;

(d) repeating said altering and revising steps until said estimation polyhedron accurately approximates said room undergoing estimation; and

(e) converting said estimation attributes of said estimation polyhedron into said material requirements for said room within said structure.

11. The method as recited in claim 10, wherein:

(a) said altering step further comprising the step of when additional planes better approximate said room undergoing estimation, partitioning said altered polygon of said estimation polyhedron into at least a first and second altered polygons to provide an improved estimation of said room undergoing estimation; and

(b) said revising step further comprises the step of from said at least first and second altered polygons of said selected facet, including additional estimation attributes corresponding to said first and second altered polygons.

12. The method as recited in claim 11, wherein said converting said estimation attributes of said estimation polyhedron step comprises the step of:

(a) converting said estimation attribute into a quantity of a specific one of said material requirements.

13. The method as recited in claim 11, further comprising the steps of:

(a) redefining another one of said plurality of planes of said estimation polyhedron as said default surface polygon to display said polygon, alter characteristics and revise estimation attributes associated therewith.

14. The method as recited in claim 10, wherein said displaying step further comprises the steps of:

(a) assigning one of said plurality of planes of said estimation polyhedron a floor attribute of said room;

(b) assigning each of others of said plurality of planes of said estimation polyhedron adjacent to said plane having said floor attribute a wall attribute; and

(c) assigning one of said plurality of planes of said estimation polyhedron adjacent to said ones of said plurality of planes having said wall attribute a ceiling attribute.

15. A computer-readable medium having computer-executable instructions for performing the steps comprising:

(a) displaying a default surface polygon, said surface polygon forming one plane of a plurality of planes of an estimation polyhedron for approximating said room, said plurality of planes each further having an estimation attribute assigned thereto;

(b) altering said default surface polygon into an altered polygon to approximate a plane of said room undergoing estimation;

(c) revising said estimation attribute of said altered polygon and adjacent ones of said plurality of planes affected by said altering step;

(d) repeating said altering and revising steps until said estimation polyhedron accurately approximates said room undergoing estimation; and

(e) converting said estimation attributes of said estimation polyhedron into said material requirements for said room within said structure.

16. The computer-readable medium of claim 15 having further computer-executable instructions for performing the steps of:

(a) said altering step further comprises the step of when additional planes better approximate said room undergoing estimation, partitioning said altered polygon of said estimation polyhedron into at least a first and second altered polygons to provide an improved estimation of said room undergoing estimation; and

(b) said revising step further comprises the step of from said at least first and second altered polygons of said selected facet, including additional estimation attributes corresponding to said first and second altered polygons.

17. The computer-readable medium of claim 15, wherein said computer-executable instructions for performing the step of converting said estimation attributes of said estimation polyhedron step further comprises computer-executable instructions for performing the step of:

(a) converting said estimation attribute into a quantity of a specific one of said material requirements.

18. The computer-readable medium of claim 15, having a further compeer-executable instructions for performing the steps of:

(a) redefining another one of said plurality of planes of said estimation polyhedron as said default surface polygon to display, alter and revise estimation attributes associated therewith.

19. The computer-readable medium of claim 15, wherein said computer-executable instructions for performing the step of displaying a default surface polygon further comprises computer-executable instructions for performing the step of:

(a) assigning one of said plurality of planes of said estimation polyhedron a floor attribute of said room;

(b) assigning each of others of said plurality of planes of said estimation polyhedron adjacent to said plane having said floor attribute a wall attribute; and

(c) assigning one of said plurality of planes of said estimation polyhedron adjacent to said ones of said plurality of planes having said wall attribute a ceiling attribute.

20. The computer-readable medium of claim 15, having further computer-executable instructions for performing the step of hierarchically grouping additional rooms into levels and grouping a plurality of levels into a structure.