CN110706342B - BIM model-based Web end lightweight geological model section display method - Google Patents
BIM model-based Web end lightweight geological model section display method Download PDFInfo
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- CN110706342B CN110706342B CN201910965799.0A CN201910965799A CN110706342B CN 110706342 B CN110706342 B CN 110706342B CN 201910965799 A CN201910965799 A CN 201910965799A CN 110706342 B CN110706342 B CN 110706342B
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000013517 stratification Methods 0.000 claims abstract description 4
- 238000009877 rendering Methods 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/05—Geographic models
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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Abstract
The invention discloses a method for displaying a geological model section based on BIM model Web end in a lightweight way, which comprises the following steps: s1, establishing a three-dimensional geological model, and setting an XYZ coordinate system of a three-dimensional scene, wherein an XY plane is a horizontal projection plane of the three-dimensional geological model, geological stratification is carried out on stratum along a Z axis, and the projection of the three-dimensional geological model on the XY plane is elliptical; s2, establishing a plurality of section lines with set intervals along the directions of parallel X axis and Y axis on an XY plane, wherein the distribution range of the section lines covers the projection of the three-dimensional geological model on the XY plane, and then, manufacturing a plurality of groups of geological sections along the Z axis; s3, importing the three-dimensional geologic model with the plurality of groups of geologic sections into the Web end; s4, developing a progress bar for viewing the geological profile; s5, checking the geological profile checking function. The invention realizes the function that the BIM model can view the profile of the geologic body at the Web end through the lightweight engine technology.
Description
Technical Field
The invention relates to the technical field of geologic models, in particular to a method for displaying geologic model sections based on BIM model Web end in a lightweight mode.
Background
With the rapid popularization of building information model (Building Information Modeling, BIM) technology in the field of civil engineering, its application in the field of geotechnical engineering investigation is also gradually deepening. The development of BIM technology is greatly promoted by the advent of a Web-side lightweight engine, the Web-side lightweight engine enables a BIM model to get rid of a huge BIM software client, and a user can inquire and manage the model in a network environment, but the development of the lightweight engine in the geotechnical engineering field also faces a bottleneck, and one important problem is the loss of model profile functions.
Through research, the existing Web-end light-weight engines on the market lack the geological profile function, and the three-dimensional model data file reconstruction model derived by the light-weight engines through the BIM client generally comprises three elements of points, lines and planes, which are the most basic elements of the model in the light-weight engines. Taking a cuboid as an example, a cuboid formed at a BIM software client is changed into a hollow cuboid box with a shell only after being processed by a lightweight engine, so that after a model is cut, a cut surface is always a blank shell, and a filled cut surface is not formed. For geotechnical engineering investigation, viewing a geological profile can deepen understanding of three-dimensional spatial distribution of a geological model, so that it is necessary to study a profile viewing function of the geotechnical engineering geological model based on a BIM technology and a Web-side lightweight engine technology.
Disclosure of Invention
The invention mainly solves the technical problems existing in the prior art, and provides a method for displaying a geological model section based on BIM model Web end in a light-weight mode.
The technical problems of the invention are mainly solved by the following technical proposal:
the invention provides a method for displaying a geological model section based on BIM model Web end in a lightweight way, which comprises the following steps:
s1, establishing a three-dimensional geological model, and setting an XYZ coordinate system of a three-dimensional scene, wherein an XY plane is a horizontal projection plane of the three-dimensional geological model, geological stratification is carried out on stratum along a Z axis, and the projection of the three-dimensional geological model on the XY plane is elliptical;
s2, establishing a plurality of section lines with set intervals along the directions of parallel X axis and Y axis on an XY plane, wherein the distribution range of the section lines covers the projection of the three-dimensional geological model on the XY plane, and then, manufacturing a plurality of groups of geological sections along the Z axis;
s3, importing the three-dimensional geologic model with the plurality of groups of geologic sections into a Web end;
s4, developing a progress bar for viewing the geological profile;
s5, checking the geological profile checking function.
Further, in the step S1, the length and width of the oval circumscribed rectangle are a and B, respectively, and in the step S2, the pitch of the plurality of section lines along the parallel X-axis direction and the pitch of the plurality of section lines along the Y-axis direction are a and B, respectively, and a and B are integer multiples of a and B, respectively.
Further, the step S3 specifically includes: and exporting the geometric information of the three-dimensional geologic model which is manufactured by the geologic profile from a Revit platform in a fixed data format, reconstructing the model at a Web end through a lightweight engine, and performing three-dimensional rendering at the Web end.
Further, the geometric information includes points, lines, faces, texture photographs, color rgb values.
Further, in the step S4, the minimum dragging step distance and the minimum moving step distance of the progress bar are the same, and the initial position of the progress bar is close to the geological section.
Further, the step S5 includes dragging the progress bar to view the geological section, and rotating the viewing angle to the obliquely upper side of the three-dimensional geological model, so as to view the continuous geological section.
The invention has the beneficial effects that:
1) Compared with the traditional BIM platform for checking the geological model, huge BIM software needs to be installed before checking the model by a BIM software client, and the method can check the geological section of the three-dimensional geological model directly at the Web end, so that the method is more convenient and faster;
2) Compared with the traditional Web-end geological viewing method, the method has the advantages that continuous three-dimensional geological section can be viewed, the traditional Web end cannot view geological section, only the empty shell of the three-dimensional geological body can be seen, and the display effect of the method is better than that of the traditional method.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a three-dimensional geologic model of the invention;
FIG. 2 is a plan projection view of a three-dimensional geologic model of the invention;
FIG. 3 is a view of a plurality of sets of geological section taken in the finished manufacture of the present invention;
FIG. 4 is a state diagram of the use of the progress bar of the present invention;
FIG. 5 is a geological section of a three-dimensional geological model of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 1-5, the method for displaying the geological model section based on the Web end of the BIM model in a lightweight way comprises the following steps:
s1, establishing a three-dimensional geological model, and setting an XYZ coordinate system of a three-dimensional scene, wherein an XY plane is a horizontal projection plane of the three-dimensional geological model, geological stratification is carried out on stratum along a Z axis, and the projection of the three-dimensional geological model on the XY plane is elliptical; as shown in fig. 2, C is a planar projection profile of the three-dimensional geologic model. In step S1 of the present invention,
s2, establishing a plurality of section lines with set intervals along the directions of parallel X axis and Y axis on an XY plane, wherein the distribution range of the section lines covers the projection of the three-dimensional geological model on the XY plane, and then, manufacturing a plurality of groups of geological sections along the Z axis; preferably, the pitch is set to 1m.
In the step S1, the length and width of the oval circumscribed rectangle are a and B, respectively, in the step S2, the pitch of the section lines along the parallel X-axis direction and the pitch of the section lines along the Y-axis direction are a and B, respectively, and a and B are integer multiples of a and B, respectively. Preferably, the oval planar projection profile circumscribes a rectangle of length and width 80m and 60m, respectively.
S3, importing the three-dimensional geologic model with the plurality of groups of geologic sections into the Web end;
s4, developing a progress bar for viewing the geological profile;
s5, checking the geological profile checking function.
The step S3 of the invention specifically comprises the following steps: and (3) exporting the geometric information of the three-dimensional geologic model which is manufactured by the geologic profile from the Revit platform in a fixed data format, reconstructing the model at a Web end through a light engine, and performing three-dimensional rendering at the Web end. Wherein the geometric information comprises points, lines, planes, texture photos and color rgb values.
Referring to fig. 4, in step S4 of the present invention, the minimum dragging step of the progress bar is the same as the minimum moving step of the section, and the initial position of the progress bar is close to the geological section. Preferably, the dragging action of the progress bar corresponds to the action of moving the section one by one; the minimum step distance a of the profile movement is consistent with the pitch of the profile A, B. Assuming that the profile moves from left to right as the progress bar is dragged from left to right (assuming that the profile right side model is retained and the profile left side model is cut), the initial position of the profile needs to be immediately to the left of the geological profile and vice versa. Preferably, the minimum movement step of the progress bar is 1m. The initial position of the cutting plane is respectively positioned at the left 0.01m of the geological section group (X axis) and the upper 0.01m of the geological section group (Y axis).
Referring to fig. 5, step S5 includes dragging the progress bar to view the geological section, and rotating the viewing angle to a position obliquely above the three-dimensional geological model to view the continuous geological section. The three-dimensional geological section of the Web end which is not processed by the method can not see the complete geological section, only a plurality of empty shells can be seen on the section, and the three-dimensional geological information section processed by the method can see the complete three-dimensional geological model and clearly see the geological interface of the stratum.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (4)
1. A method for displaying a geological model section based on BIM model Web end in a light-weight mode is characterized by comprising the following steps:
s1, establishing a three-dimensional geological model, and setting an XYZ coordinate system of a three-dimensional scene, wherein an XY plane is a horizontal projection plane of the three-dimensional geological model, geological stratification is carried out on stratum along a Z axis, and the projection of the three-dimensional geological model on the XY plane is elliptical;
s2, establishing a plurality of section lines with set intervals along the directions of parallel X axis and Y axis on an XY plane, wherein the distribution range of the section lines covers the projection of the three-dimensional geological model on the XY plane, and then, manufacturing a plurality of groups of geological sections along the Z axis;
s3, importing the three-dimensional geologic model with the plurality of groups of geologic sections into a Web end;
s4, developing a progress bar for viewing the geological profile;
s5, verifying a geological profile checking function;
in the step S1, the length and the width of the oval circumscribed rectangle are a and B, respectively, in the step S2, the pitches of the section lines along the parallel X-axis direction and the pitches of the section lines along the Y-axis direction are a and B, respectively, and the a and the B are integer multiples of a and B, respectively;
in the step S4, the minimum dragging step distance of the progress bar is the same as the minimum moving step distance of the section plane, and the initial position of the progress bar is close to the geological section plane.
2. The method for lightweight exhibition of geologic model profiles based on BIM model Web terminal according to claim 1, wherein the step S3 specifically includes: and exporting the geometric information of the three-dimensional geologic model which is manufactured by the geologic profile from a Revit platform in a fixed data format, reconstructing the model at a Web end through a lightweight engine, and performing three-dimensional rendering at the Web end.
3. The method for lightweight presentation of geologic model profiles based on a Web end of a BIM model according to claim 2, wherein the geometric information includes points, lines, planes, material photos, colors rgb values.
4. The method for lightweight exhibition of geologic model profiles based on BIM model Web end of claim 1, wherein step S5 comprises dragging the progress bar function to view geologic section, and rotating the viewing angle to the obliquely upper side of the three-dimensional geologic model to view continuous geologic section.
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| CN113487718B (en) * | 2021-07-05 | 2022-07-26 | 重庆比特数图科技有限公司 | Dynamic sectioning and section filling method for three-dimensional geological model at Web end |
| CN113593030B (en) * | 2021-08-13 | 2024-04-19 | 长春工程学院 | Geological profile generation method, system, terminal and medium based on three-dimensional model |
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| CN106504324A (en) * | 2016-10-21 | 2017-03-15 | 华北水利水电大学 | A kind of two D profile of engineering geology integration method for drafting based on ActiveX technology |
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| CN106504324A (en) * | 2016-10-21 | 2017-03-15 | 华北水利水电大学 | A kind of two D profile of engineering geology integration method for drafting based on ActiveX technology |
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Address after: No. 38, Shuifeng Road, Yangpu District, Shanghai 202150 Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: No. 38, Shuifeng Road, Yangpu District, Shanghai 202150 Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |
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