2D Technical Drawing Generation From 3D Building Models
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Solution Overview
Problem
Existing software tools for rendering three-dimensional views of construction projects do not provide all the information available on two-dimensional technical drawings, such as dimensioning information, and lack the capability to generate corresponding two-dimensional drawings. Additionally, existing technology does not provide functional overviews of construction projects, and important information like pipe distances may not be readily available in either two-dimensional or three-dimensional representations.
Innovation Solution
The software technology enables a computing system to generate a two-dimensional technical drawing at a custom clip height based on a three-dimensional model, and to create a functional two-dimensional inset for a three-dimensional view. It also allows for the generation of a custom dimension view that includes additional dimensioning information not typically displayed in three-dimensional models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If three-dimensional views are used to visualize construction projects, then overall project overview is improved, but dimensioning information and detailed measurements are lost
Solution Approach 1:
The system segments the visualization into multiple functional components: a primary three-dimensional view for overall project overview, and secondary two-dimensional inset drawings that provide detailed dimensioning information. This segmentation allows each view type to fulfill its specific informational role without compromising the other.
Solution Approach 2:
The system integrates two-dimensional technical drawings as functional insets within the three-dimensional viewing environment. This dimensional integration allows users to access detailed measurement information (2D) while maintaining the spatial context (3D), effectively combining the advantages of both view types in a unified interface.
2Loss of information
If multiple two-dimensional drawings are created to represent different floors, then complete information coverage is improved, but complexity and storage requirements increase
Solution Approach 1:
The three-dimensional viewing system serves multiple functions simultaneously: it provides overall project navigation, allows floor-level exploration, and integrates detailed dimensioning information through functional insets. This multi-functionality replaces the need for multiple separate two-dimensional drawings while maintaining complete information coverage.
Solution Approach 2:
The system nests two-dimensional functional insets within the three-dimensional viewing environment. These insets are embedded at relevant locations in the 3D space, allowing users to access detailed information for specific floors or elements without leaving the primary three-dimensional context, thus reducing the need for separate drawing files.
3Area of stationary object
If two-dimensional technical drawings are used, then compactness and ease of storage are improved, but spatial context and vertical dimension representation are lost
Solution Approach 1:
The system enhances two-dimensional representations by embedding them as functional insets within the three-dimensional environment. This allows the 2D drawings to maintain their compactness while gaining the ability to represent vertical dimension information through their contextual placement and association with specific 3D spatial locations.
4Shape
If three-dimensional models are used, then spatial understanding is improved, but detailed dimensioning information becomes less accessible
Solution Approach 1:
The system introduces two-dimensional functional insets as intermediary elements between the three-dimensional model and the user. These insets serve as a bridge that translates complex spatial relationships into readable dimensioning information, making precise measurements accessible while preserving the spatial context of the 3D model.
Data Source
AI summary
The present disclosure is directed to a software tool that facilitates the presentation of a three-dimensional view of a construction project as well as the generation of various types of two-dimensional technical drawings based on this three-dimensional view. In one implementation, the software tool causes a computing device to engage in the following operations. The computing device may receive an indication of a desired clip height of a three-dimensional view at which to generate a two-dimensional technical drawing; identify a subset of meshes that intersect with a two-dimensional plane at the desired clip height; determine respective portions of each mesh that intersect the two-dimensional plane at the desired clip height; compile a dataset that defines the two-dimensional drawing; and render the two-dimensional drawing using the compiled dataset.