CN109949415A - A kind of system and method for three-dimensional earth's surface and the modeling of model of geological structure body topological coherence - Google Patents
A kind of system and method for three-dimensional earth's surface and the modeling of model of geological structure body topological coherence Download PDFInfo
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Abstract
The invention proposes the system and methods of a kind of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence, it include: topological crosspoint objectification model computation module, topology intersection boundary model computation module, earth's surface segmentation module, geology segmentation module, independent cutting obturator model computation module and geologic body correction module, wherein, topological crosspoint objectification model computation module is used for for three-dimensional terrain model and three-dimensional geological body Model, crosspoint calculating is carried out, the topological crosspoint objectification model of three-dimensional terrain model and three-dimensional geological body Model is obtained；Geologic body correction module is used to independently cut closing climbing form type according to each group that independent cutting obturator model computation module obtains, and obtains revised three-dimensional geological body Model.The present invention can quickly obtain the topological crosspoint objectification model of three-dimensional terrain model and three-dimensional geological body Model, substantially reduce calculation amount.
Description
Technical field
The present invention relates to Review of geologic model building techniques field, in particular to a kind of three-dimensional earth's surface is built with model of geological structure body topological coherence
The system and method for mould.
Background technique
In related fieldss such as the transparent earth, transparent city, digital mine and engineering construction whole process BIMization applications, relate to
And the integral application demand to a large amount of three-dimensional terrain models and three-dimensional geological body Model.
Due in the modeling process of terrain model and model of geological structure body, respectively characteristic element and modeling method of interest
Deng, there are larger difference and conflict；It is this inconsistent to will lead to going deep into for two class models earth's surface, geology needed for relevant industries
Lot of challenges is faced in specialization application, the application for various pieces often occur causes the application in stage before and after conflict, application flow
It causes to conflict, applied the problems such as not becoming subsequent unified result later, be only part or interim application provides skill
Art support or service.
Such as: in ① highway rock mass engineering project, the accurate excavation and filling amount of DIFFERENT SOIL class calculates and balance optimizing, is difficult to fast
Speed is determined by computer come quantification；2. in sponge urban construction, earth's surface Confluence Model is connected to the space of permeable geologic body
Model is difficult to accurate determination, and the infiltration of sponge geologic body is difficult precisely to optimize with water storage channel；3. built three-dimensional geologic mould
After type is imported into GIS, once it is corrected using GIS technology, when returning geological model modeling systems, three-dimensional geological
Body Model then will lead to professional problem etc..
Therefore, for the three-dimensional terrain model that has built and three-dimensional geological body Model, how based on landform, geologic body
The building background of specialty characteristics and these two types of models, realizes integration modeling from node and topological relation model, is configured to one
The consistent model of space topological of layer skin formula, becomes technical problem urgently to be resolved.
Summary of the invention
The purpose of the present invention aims to solve at least one of described technological deficiency.
For this purpose, it is an object of the invention to propose the system of a kind of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence and
Method.
To achieve the goals above, the embodiment of the present invention provides a kind of three-dimensional earth's surface and builds with model of geological structure body topological coherence
The system of mould, comprising: topological crosspoint objectification model computation module, topology intersection boundary model computation module, earth's surface segmentation
Module, geology segmentation module, independent cutting obturator model computation module and geologic body correction module, wherein
The topology crosspoint objectification model computation module is used for for three-dimensional terrain model and three-dimensional geological body Model,
Crosspoint calculating is carried out, the crosspoint of three-dimensional terrain model and three-dimensional geological body Model is calculated, and records crosspoint difference
Triangulation network number information in three-dimensional terrain model and three-dimensional geological body Model, obtains three-dimensional terrain model and three-dimensional geologic
The topological crosspoint objectification model of model；
The topology intersection boundary model computation module is used to be calculated according to the topological crosspoint objectification model
Each group autonomous closure that intersection point set is constituted intersects boundary, and adjusts the inverse time pin knot for generating every group of independent intersection closed boundary
Point sequence, whole generation topology of finally converging intersect boundary model；
The earth's surface segmentation module is used to intersect boundary model according to topology, and three-dimensional terrain model is divided into intersection boundary
Gather outside set and the earth's surface triangulation network for intersecting border outer in the internal earth's surface triangulation network；
The geology segmentation module is used to intersect boundary model for each stratum boundary surface of three-dimensional geologic according to topology
Model is divided into the stratigraphic boundary curved surface gathered in the stratigraphic boundary curved surface triangulation network of intersection border inner and intersect border outer
Gather outside the triangulation network；
The independent cutting obturator model computation module is used to intersect boundary for each group of autonomous closure, by the closing
Set is combined with set in the curved surface triangulation network of stratigraphic boundary in the earth's surface triangulation network in intersection boundary, and building obtains the closing
Intersect the cutting closing body Model of independence corresponding to boundary；
The geologic body correction module is used to independently be cut according to each group that independent cutting obturator model computation module obtains
Closing climbing form type is cut, revised three-dimensional geological body Model is obtained.
Further, the geologic body correction module obtains revised three-dimensional geological body Model, includes the following steps:
When the maximum gauge of the independent cutting closing body Model is less than setting value, this is independently cut to closing body Model
The top surface of the three-dimensional geological body Model of region is modified to the earth's surface internal cutting model in the region, or this is independently cut to envelope
The three-dimensional terrain model of closure model region is modified to the stratum internal cutting model in the region；
When the earth's surface internal cutting model of the independent cutting obturator model region is higher than stratum internal cutting model:
This is independently cut to closing body Model labeled as newly-increased class geologic body of banketing, and this is independently cut in the earth's surface for closing body Model
Top surface of the Slicing Model for Foreign as the newly-increased class geologic body of banketing, this independently cuts the stratum internal cutting model conduct of closing body Model
The bottom surface of the newly-increased class geologic body of banketing；
When the earth's surface internal cutting model of the independent cutting obturator model region is lower than stratum internal cutting model:
This is independently cut to closing body Model to be labeled as deleting class geologic body, and this is independently cut to the earth's surface internal cutting of closing body Model
Model deletes the bottom surface of class geologic body as this, which deletes class as this
The top surface of geologic body.
Further, the topological crosspoint objectification model computation module is used for for three-dimensional terrain model and three-dimensional geological
Body Model carries out crosspoint calculating, includes the following steps:
The unified minimum cuboid outsourcing BOX Model of three-dimensional terrain model and three-dimensional geological body Model is calculated；
Respectively along X, Y, Z-direction, according to the normal pitch of setting, respectively as length, width and height, to cuboid outsourcing BOX Model
Three-dimensional dividing is carried out, spatial cuboids mesh generation model is obtained；
The node coordinate for counting three-dimensional terrain model is located at the distribution index in spatial cuboids mesh generation model；
The node coordinate of statistics three-dimensional geological body Model is located at the distribution index in spatial cuboids mesh generation model；
It is located at the distribution index and three in spatial cuboids mesh generation model according to the node coordinate of three-dimensional terrain model
The node coordinate of dimension model of geological structure body is located at the distribution index in spatial cuboids mesh generation model, and statistics obtains three-dimensional earth's surface
Model intersects the triangulation network with potential in three-dimensional geological body Model；
Intersect the triangulation network according to potential, calculate the crosspoint of three-dimensional terrain model and three-dimensional geological body Model, and records
The crosspoint triangulation network number information in three-dimensional terrain model and three-dimensional geological body Model respectively, obtain three-dimensional terrain model with
The topological crosspoint objectification model of three-dimensional geological body Model.
Further, the independent cutting obturator model computation module intersects boundary for each group of autonomous closure, from ground
Corresponding earth's surface internal cutting model is extracted in the table triangulation network in set, set extracts corresponding stratum out of stratigraphic boundary the curved surface triangulation network
Internal cutting model；According to earth's surface internal cutting model and stratum internal cutting model corresponding to each group of autonomous closure intersection boundary,
Construct one group of independent cutting closing body Model that completely three-dimensional terrain model intersects with three-dimensional geological body Model.
The method that the present invention also proposes a kind of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence, includes the following steps:
Step S1 carries out crosspoint calculating for three-dimensional terrain model and three-dimensional geological body Model, is calculated dimensionally
The crosspoint of table model and three-dimensional geological body Model, and crosspoint is recorded respectively in three-dimensional terrain model and three-dimensional geological body Model
In triangulation network number information, obtain the topological crosspoint objectification model of three-dimensional terrain model and three-dimensional geological body Model；
It is independent that each group that intersection point set is constituted is calculated according to the topological crosspoint objectification model in step S2
Closing intersection boundary, and the node sequencing counterclockwise for generating every group of independent intersection closed boundary is adjusted, whole generations that finally converge is topological
Intersect boundary model；
Step S3 intersects boundary model according to topology, three-dimensional terrain model is divided into the earth's surface three of intersection border inner
Gather outside set and the earth's surface triangulation network for intersecting border outer in the net of angle；
Each stratum bounding surface model of three-dimensional geologic is divided into intersection according to topology intersection boundary model by step S4
Gather outside set and the stratigraphic boundary curved surface triangulation network for intersecting border outer in the stratigraphic boundary curved surface triangulation network of border inner；
Step S5 intersects boundary for each group of autonomous closure, which is intersected in the earth's surface triangulation network in boundary and is collected
It closes and is combined with set in the curved surface triangulation network of stratigraphic boundary, building obtains independence cutting envelope corresponding to closing intersection boundary
Closure model；
Step S6 independently cuts closing climbing form type according to each group that independent cutting obturator model computation module obtains, obtains
To revised three-dimensional geological body Model.
Further, in the step S1,
For three-dimensional terrain model and three-dimensional geological body Model, crosspoint calculating is carried out, is included the following steps:
The unified minimum cuboid outsourcing BOX Model of three-dimensional terrain model and three-dimensional geological body Model is calculated；
Respectively along X, Y, Z-direction, according to the normal pitch of setting, respectively as length, width and height, to cuboid outsourcing BOX Model
Three-dimensional dividing is carried out, spatial cuboids mesh generation model is obtained；
The node coordinate for counting three-dimensional terrain model is located at the distribution index in spatial cuboids mesh generation model；
The node coordinate of statistics three-dimensional geological body Model is located at the distribution index in spatial cuboids mesh generation model；
It is located at the distribution index and three in spatial cuboids mesh generation model according to the node coordinate of three-dimensional terrain model
The node coordinate of dimension model of geological structure body is located at the distribution index in spatial cuboids mesh generation model, and statistics obtains three-dimensional earth's surface
Model intersects the triangulation network with potential in three-dimensional geological body Model；
Intersect the triangulation network according to potential, calculate the crosspoint of three-dimensional terrain model and three-dimensional geological body Model, and records
The crosspoint triangulation network number information in three-dimensional terrain model and three-dimensional geological body Model respectively, obtain three-dimensional terrain model with
The topological crosspoint objectification model of three-dimensional geological body Model.
Further, in the step S5, intersect boundary for each group of autonomous closure, from gathering in the earth's surface triangulation network
Corresponding earth's surface internal cutting model is extracted, set extracts corresponding stratum internal cutting model out of stratigraphic boundary the curved surface triangulation network；According to
Earth's surface internal cutting model and stratum internal cutting model corresponding to each group of autonomous closure intersection boundary, construct one group complete three
The independent cutting closing body Model that dimension terrain model intersects with three-dimensional geological body Model.
Further, in the step S6, each group obtained based on independent cutting obturator model computation module is independently cut
Closing body Model is cut, revised three-dimensional geological body Model is obtained, comprising:
When the maximum gauge for independently cutting closing body Model is less than setting value, this is independently cut to obturator model and is existed
The three-dimensional terrain model in region is modified to the stratum internal cutting model in the region；
When the earth's surface internal cutting model for independently cutting obturator model region is higher than stratum internal cutting model: by this
Independent cutting closing body Model is labeled as newly-increased class geologic body of banketing, and this is independently cut to the earth's surface internal cutting of closing body Model
Top surface of the model as the newly-increased class geologic body of banketing, the stratum internal cutting model for independently cutting closing body Model are new as this
Increase the bottom surface for class geologic body of banketing；
When the earth's surface internal cutting model for independently cutting obturator model region is lower than stratum internal cutting model: by this
Independent cutting closing body Model is labeled as deleting class geologic body, and this is independently cut to the earth's surface internal cutting model of closing body Model
The bottom surface of class geologic body is deleted as this, which deletes class geology as this
The top surface of body.
It is according to an embodiment of the present invention three-dimensional earth's surface and model of geological structure body topological coherence modeling system and method, have with
It is lower the utility model has the advantages that
1. the present invention is for the three-dimensional terrain model that has built and three-dimensional geological body Model, based on landform, geologic body
The building background of specialty characteristics and these two types of models, realizes the integration modeling of the two from node and topological relation model,
It is configured to the consistent model of space topological.
2. the present invention is by constructing unified minimum cuboid outsourcing box mould of the three-dimensional terrain model with three-dimensional geological body Model
Type, and spatial cuboids mesh generation is carried out, the section of three-dimensional terrain model, three-dimensional geological body Model is then counted and compared respectively
Point coordinate is located at the distribution index in spatial cuboids mesh generation model, so as to quickly obtain three-dimensional terrain model and three
The topological crosspoint objectification model for tieing up model of geological structure body, substantially reduces calculation amount.
3. statistics obtains each group autonomous closure that intersection point set is constituted the present invention is based on topological crosspoint objectification model
Intersect boundary, calculate and adjust the node sequencing counterclockwise for generating every group of independent intersection closed boundary, whole generations that finally converge is topological
Intersect boundary model.
4. the present invention is based on topologys to intersect boundary model, the inside and outside segmentation meter of intersection edges bound pair three-dimensional terrain model is carried out
It calculates, three-dimensional terrain model is divided into the earth's surface triangle gathered in the earth's surface triangulation network of intersection border inner and intersect border outer
The outer set of net.
5. the present invention is based on topologys to intersect boundary model, intersection edges bound pair three-dimensional geologic model formation boundary surface is carried out
Inside and outside separation calculation, the stratigraphic boundary that each stratum bounding surface model of three-dimensional geologic is divided into intersection border inner is bent
Gather outside set and the stratigraphic boundary curved surface triangulation network for intersecting border outer in the triangulation network of face.
6. the present invention intersects boundary for each group of autonomous closure, extracted from gathering in the earth's surface triangulation network in corresponding earth's surface
Slicing Model for Foreign, set extracts corresponding stratum internal cutting model out of stratigraphic boundary the curved surface triangulation network, and building each group is completely three-dimensional
The independent cutting closing body Model that terrain model intersects with three-dimensional geological body Model.
7. the present invention independently cut for each group closes body Model according to different situations progress classification processing: 1. when independently cutting
Cut closing body Model maximum gauge be less than setting value (setting value can be set to 0.1cm~0.2cm, depending on different regions or row
Can slightly have difference in industry technical standard) when, this is independently cut to the top of the three-dimensional geological body Model of obturator model region
Face is modified to the area three-dimensional terrain model, or this is independently cut to the three-dimensional terrain model of obturator model region and is repaired
It is just being the top surface of the area three-dimensional model of geological structure body；2. when the three-dimensional terrain model for independently cutting obturator model region is high
When the surface model of three-dimensional geologic: this independently being cut to closing body Model labeled as newly-increased class geologic body of banketing, and should
Top surface of the three-dimensional terrain model of independent cutting closing body Model corresponding region as the newly-increased class geologic body of banketing, this is independently cut
Cut bottom surface of the upper surface of the three-dimensional geological body Model of closing body Model corresponding region as the newly-increased class geologic body of banketing；3. when
When the three-dimensional terrain model of independent cutting obturator model region is lower than the surface model of three-dimensional geologic: this is independently cut
It cuts closing body Model to be labeled as deleting class geologic body, and this is independently cut to the three-dimensional terrain model of closing body Model corresponding region
The bottom surface of class geologic body is deleted as this, this independently cuts the upper surface of the three-dimensional geological body Model of closing body Model corresponding region
The top surface of class geologic body is deleted as this.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structure according to the system of three-dimensional earth's surface and model of geological structure body the topological coherence modeling of the embodiment of the present invention
Figure；
Fig. 2 is the implementation stream according to the system of three-dimensional earth's surface and model of geological structure body the topological coherence modeling of the embodiment of the present invention
Cheng Tu；
Fig. 3 is rectangular according to the three-dimensional terrain model of calculating and the unified minimum of three-dimensional geological body Model of the embodiment of the present invention
The schematic diagram of external packet BOX Model；
Fig. 4 is the schematic diagram according to the spatial cuboids mesh generation model of the embodiment of the present invention；
Fig. 5 is the schematic diagram according to the topological crosspoint objectification model of the embodiment of the present invention；
Fig. 6 is the schematic diagram according to the topology intersection boundary model of the embodiment of the present invention；
Fig. 7 is according to the schematic diagram gathered in the earth's surface triangulation network of the embodiment of the present invention；
Fig. 8 is the schematic diagram gathered outside the earth's surface triangulation network according to the embodiment of the present invention；
Fig. 9 is according to the schematic diagram gathered in the stratigraphic boundary curved surface triangulation network of the embodiment of the present invention；
Figure 10 is the schematic diagram gathered outside the stratigraphic boundary curved surface triangulation network according to the embodiment of the present invention；
Figure 11 is the schematic diagram according to the earth's surface internal cutting model of the embodiment of the present invention；
Figure 12 is the schematic diagram according to the stratum internal cutting model of the embodiment of the present invention；
Figure 13 is the schematic diagram according to the independent cutting closing body Model of the embodiment of the present invention；
Figure 14 is the signal that 0.2cm is less than according to the maximum gauge of the independent cutting closing body Model of the embodiment of the present invention
Figure；
Figure 15 is to be repaired according to the three-dimensional terrain model by independent cutting obturator model region of the embodiment of the present invention
It is just being the schematic diagram of the stratum internal cutting model in the region；
Figure 16 is high according to the earth's surface internal cutting model of the independent cutting obturator model region of the embodiment of the present invention
In the schematic diagram of stratum internal cutting model；
Figure 17 is according to the embodiment of the present invention the independent earth's surface internal cutting model for cutting closing body Model is new as this
Increase the schematic diagram of the top surface for class geologic body of banketing；
Figure 18 is low according to the earth's surface internal cutting model of the independent cutting obturator model region of the embodiment of the present invention
In the schematic diagram of stratum internal cutting model；
Figure 19 is low according to the earth's surface internal cutting model of the independent cutting obturator model region of the embodiment of the present invention
In stratum internal cutting model, this is independently cut to closing body Model and is labeled as deleting the schematic diagram of class geologic body.
Figure 20 is deleting the independent earth's surface internal cutting model for cutting closing body Model as this according to the embodiment of the present invention
Subtract the bottom surface of class geologic body, the stratum internal cutting model of independent cutting closing body Model deletes the top surface of class geologic body as this
Schematic diagram；
Figure 21 is the process according to the method for three-dimensional earth's surface and model of geological structure body the topological coherence modeling of the embodiment of the present invention
Figure.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The present invention proposes the system and method for a kind of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence, for dimensionally
Geometry between the integral application demand of table model and three-dimensional geological body Model, three-dimensional terrain model and three-dimensional geological body Model
Topological inconsistence problems realize method, system and the application of three-dimensional terrain model and the modeling of model of geological structure body topological coherence.
It is an object of the present invention to inconsistent for the geometry topology between three-dimensional terrain model and three-dimensional geological body Model
Problem realizes method, system and the application of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence.
As depicted in figs. 1 and 2, the system of the three-dimensional earth's surface of the embodiment of the present invention and the modeling of model of geological structure body topological coherence,
It include: topological crosspoint objectification model computation module, topology intersection boundary model computation module, earth's surface segmentation module, geology
Divide module, independent cutting obturator model computation module and geologic body correction module.
Specifically, topological crosspoint objectification model computation module is used for for three-dimensional terrain model and three-dimensional geologic mould
Type carries out crosspoint calculating, the crosspoint of three-dimensional terrain model and three-dimensional geological body Model is calculated, and records crosspoint point
Triangulation network number information not in three-dimensional terrain model and three-dimensional geological body Model, obtains three-dimensional terrain model and three-dimensional geological
The topological crosspoint objectification model of body Model.
Topological crosspoint objectification model computation module is used to carry out for three-dimensional terrain model and three-dimensional geological body Model
Crosspoint calculates, and includes the following steps:
1) the unified minimum cuboid outsourcing BOX Model of three-dimensional terrain model and three-dimensional geological body Model is calculated, such as schemes
Shown in 3.
2) respectively along X, Y, Z-direction, according to the normal pitch of setting, respectively as length, width and height, to cuboid outsourcing box mould
Type carries out three-dimensional dividing, obtains spatial cuboids mesh generation model, as shown in Figure 4.
3) node coordinate for counting three-dimensional terrain model is located at the distribution index in spatial cuboids mesh generation model.
4) according to the node coordinate of three-dimensional terrain model be located at distribution index in spatial cuboids mesh generation model and
The node coordinate of three-dimensional geological body Model is located at the distribution index in spatial cuboids mesh generation model, and statistics obtains dimensionally
Table model intersects the triangulation network with potential in three-dimensional geological body Model.
5) intersect the triangulation network according to potential, calculate the crosspoint of three-dimensional terrain model and three-dimensional geological body Model, and remember
Intersection point is used videotape to record respectively in three-dimensional terrain model and the triangulation network number information in three-dimensional geological body Model, obtains three-dimensional terrain model
And the topological crosspoint objectification model of three-dimensional geological body Model, as shown in Figure 5.
Topology intersection boundary model computation module is used to that intersection point set to be calculated according to topological crosspoint objectification model
The each group autonomous closure intersection boundary constituted, and the node sequencing counterclockwise for generating every group of independent intersection closed boundary is adjusted,
Whole generation topology of finally converging intersects boundary model, as shown in Figure 6.
Earth's surface divides module and geology divides module, based on " topology intersection boundary model ", calculates separately intersection edges bound pair
Separation calculation inside and outside the boundary of three-dimensional terrain model and three-dimensional geological body Model:
Earth's surface divides module and is used to intersect boundary model according to topology, and three-dimensional terrain model is divided into intersection border inner
The earth's surface triangulation network in set (as shown in Figure 7) with intersect border outer the earth's surface triangulation network outside set (as shown in Figure 8).
Geology divides module and is used to intersect boundary model for each stratum bounding surface model of three-dimensional geologic according to topology
It is divided into the stratum side gathered (as shown in Figure 9) in the stratigraphic boundary curved surface triangulation network of intersection border inner and intersect border outer
Gather (as shown in Figure 10) outside boundary's curved surface triangulation network.
Independent cutting obturator model computation module is used to intersect boundary for each group of autonomous closure, which is intersected
Set is combined with set in the curved surface triangulation network of stratigraphic boundary in the earth's surface triangulation network in boundary, and building obtains closing intersection
The cutting closing body Model of independence corresponding to boundary.
Specifically, independent cutting obturator model computation module intersects boundary for each group of autonomous closure, from earth's surface three
Corresponding earth's surface internal cutting model (as shown in figure 11) is extracted in set in the net of angle, gathers out of stratigraphic boundary the curved surface triangulation network and extracts
Corresponding stratum internal cutting model (as shown in figure 12)；According to earth's surface internal cutting mould corresponding to each group of autonomous closure intersection boundary
Type and stratum internal cutting model (as shown in figure 13), completely three-dimensional terrain model intersects with three-dimensional geological body Model for one group of building
Independent cutting closing body Model.
Geologic body correction module is used to independently cut envelope according to each group that independent cutting obturator model computation module obtains
Climbing form type is closed, revised three-dimensional geological body Model is obtained.
Specifically, geologic body correction module obtains revised three-dimensional geological body Model, include the following steps:
As shown in figure 14, when the maximum gauge for independently cutting closing body Model is less than setting value, (setting value be can be set
For 0.1cm~0.2cm, depending on that can slightly have difference in different regions or Technical specifications) when, this is independently cut to closing body Model
The top surface of the three-dimensional geological body Model of region is modified to the earth's surface internal cutting model in the region, or this is independently cut to envelope
The three-dimensional terrain model of closure model region is modified to the stratum internal cutting model in the region, as shown in figure 15.
As shown in figure 16, when the earth's surface internal cutting model for independently cutting obturator model region is higher than stratum internal cutting
When model: this independently being cut to closing body Model labeled as newly-increased class geologic body of banketing, and this is independently cut to closing body Model
Top surface of the earth's surface internal cutting model as the newly-increased class geologic body of banketing, this independently cuts the stratum internal cutting for closing body Model
Bottom surface of the model as the newly-increased class geologic body of banketing, as shown in figure 17.
As shown in figure 18, when the earth's surface internal cutting model for independently cutting obturator model region is lower than stratum internal cutting
When model: this independently being cut to closing body Model and is labeled as deleting class geologic body (as shown in figure 19), and this is independently cut to envelope
The earth's surface internal cutting model of closure model deletes the bottom surface (as shown in figure 20) of class geologic body as this, this independently cuts obturator
The stratum internal cutting model of model deletes the top surface of class geologic body as this.
As shown in figure 21, the embodiment of the present invention also proposes the side of a kind of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence
Method includes the following steps:
Step S1 carries out crosspoint calculating for three-dimensional terrain model and three-dimensional geological body Model, is calculated dimensionally
The crosspoint of table model and three-dimensional geological body Model, and crosspoint is recorded respectively in three-dimensional terrain model and three-dimensional geological body Model
In triangulation network number information, obtain the topological crosspoint objectification model of three-dimensional terrain model and three-dimensional geological body Model.
In this step, for three-dimensional terrain model and three-dimensional geological body Model, crosspoint calculating is carried out, including is walked as follows
It is rapid:
The unified minimum cuboid outsourcing BOX Model of three-dimensional terrain model and three-dimensional geological body Model is calculated；
Respectively along X, Y, Z-direction, according to the normal pitch of setting, respectively as length, width and height, to cuboid outsourcing BOX Model
Three-dimensional dividing is carried out, spatial cuboids mesh generation model is obtained；
The node coordinate for counting three-dimensional terrain model is located at the distribution index in spatial cuboids mesh generation model；
The node coordinate of statistics three-dimensional geological body Model is located at the distribution index in spatial cuboids mesh generation model；
It is located at the distribution index and three in spatial cuboids mesh generation model according to the node coordinate of three-dimensional terrain model
The node coordinate of dimension model of geological structure body is located at the distribution index in spatial cuboids mesh generation model, and statistics obtains three-dimensional earth's surface
Model intersects the triangulation network with potential in three-dimensional geological body Model；
Intersect the triangulation network according to potential, calculate the crosspoint of three-dimensional terrain model and three-dimensional geological body Model, and records
The crosspoint triangulation network number information in three-dimensional terrain model and three-dimensional geological body Model respectively, obtain three-dimensional terrain model with
The topological crosspoint objectification model of three-dimensional geological body Model.
The each group autonomous closure that intersection point set is constituted is calculated according to topological crosspoint objectification model in step S2
Intersect boundary, and adjust the node sequencing counterclockwise for generating every group of independent intersection closed boundary, whole generations topology of finally converging intersects
Boundary model；
Step S3 intersects boundary model according to topology, three-dimensional terrain model is divided into the earth's surface three of intersection border inner
Gather outside set and the earth's surface triangulation network for intersecting border outer in the net of angle；
Each stratum bounding surface model of three-dimensional geologic is divided into intersection according to topology intersection boundary model by step S4
Gather outside set and the stratigraphic boundary curved surface triangulation network for intersecting border outer in the stratigraphic boundary curved surface triangulation network of border inner；
Step S5 intersects boundary for each group of autonomous closure, which is intersected in the earth's surface triangulation network in boundary and is collected
It closes and is combined with set in the curved surface triangulation network of stratigraphic boundary, building obtains independence cutting envelope corresponding to closing intersection boundary
Closure model.
In step s 5, intersect boundary for each group of autonomous closure, extracted accordingly from gathering in the earth's surface triangulation network
Table internal cutting model, set extracts corresponding stratum internal cutting model out of stratigraphic boundary the curved surface triangulation network；According to each group of independence
Earth's surface internal cutting model and stratum internal cutting model corresponding to closing intersection boundary construct one group of completely three-dimensional terrain model
The independent cutting closing body Model intersected with three-dimensional geological body Model.
Step S6 independently cuts closing climbing form type according to each group that independent cutting obturator model computation module obtains, obtains
To revised three-dimensional geological body Model.
Specifically, independently cutting closing body Model based on each group that independent cutting obturator model computation module obtains, obtain
To revised three-dimensional geological body Model, comprising:
When independently cut closing body Model maximum gauge be less than setting value (setting value can be set to 0.1cm~
0.2cm, depending on that can slightly have difference in different regions or Technical specifications) when, this is independently cut to obturator model region
Three-dimensional terrain model be modified to the stratum internal cutting model in the region；
When the earth's surface internal cutting model for independently cutting obturator model region is higher than stratum internal cutting model: by this
Independent cutting closing body Model is labeled as newly-increased class geologic body of banketing, and this is independently cut to the earth's surface internal cutting of closing body Model
Top surface of the model as the newly-increased class geologic body of banketing, the stratum internal cutting model for independently cutting closing body Model are new as this
Increase the bottom surface for class geologic body of banketing；
When the earth's surface internal cutting model for independently cutting obturator model region is lower than stratum internal cutting model: by this
Independent cutting closing body Model is labeled as deleting class geologic body, and this is independently cut to the earth's surface internal cutting model of closing body Model
The bottom surface of class geologic body is deleted as this, which deletes class geology as this
The top surface of body.
The system and method that the three-dimensional earth's surface of the embodiment of the present invention is modeled with model of geological structure body topological coherence can be applied to
Present invention can apply to digital city field, sponge city field, engineering construction whole process field, the transparent earth, transparent city
The fields such as field, water resource, geothermal energy resources, environmental protection, geologic survey, urban geology modeling, geologic mapping, geological disaster are controlled
The fields such as reason, engineering investigation, geological disaster prospecting.
It is according to an embodiment of the present invention three-dimensional earth's surface and model of geological structure body topological coherence modeling system and method, have with
It is lower the utility model has the advantages that
1. the present invention is for the three-dimensional terrain model that has built and three-dimensional geological body Model, based on landform, geologic body
The building background of specialty characteristics and these two types of models, realizes the integration modeling of the two from node and topological relation model,
It is configured to the consistent model of space topological.
2. the present invention is by constructing unified minimum cuboid outsourcing box mould of the three-dimensional terrain model with three-dimensional geological body Model
Type, and spatial cuboids mesh generation is carried out, the section of three-dimensional terrain model, three-dimensional geological body Model is then counted and compared respectively
Point coordinate is located at the distribution index in spatial cuboids mesh generation model, so as to quickly obtain three-dimensional terrain model and three
The topological crosspoint objectification model for tieing up model of geological structure body, substantially reduces calculation amount.
3. statistics obtains each group autonomous closure that intersection point set is constituted the present invention is based on topological crosspoint objectification model
Intersect boundary, calculate and adjust the node sequencing counterclockwise for generating every group of independent intersection closed boundary, whole generations that finally converge is topological
Intersect boundary model.
4. the present invention is based on topologys to intersect boundary model, the inside and outside segmentation meter of intersection edges bound pair three-dimensional terrain model is carried out
It calculates, three-dimensional terrain model is divided into the earth's surface triangle gathered in the earth's surface triangulation network of intersection border inner and intersect border outer
The outer set of net.
5. the present invention is based on topologys to intersect boundary model, intersection edges bound pair three-dimensional geologic model formation boundary surface is carried out
Inside and outside separation calculation, the stratigraphic boundary that each stratum bounding surface model of three-dimensional geologic is divided into intersection border inner is bent
Gather outside set and the stratigraphic boundary curved surface triangulation network for intersecting border outer in the triangulation network of face.
6. the present invention intersects boundary for each group of autonomous closure, extracted from gathering in the earth's surface triangulation network in corresponding earth's surface
Slicing Model for Foreign, set extracts corresponding stratum internal cutting model out of stratigraphic boundary the curved surface triangulation network, and building each group is completely three-dimensional
The independent cutting closing body Model that terrain model intersects with three-dimensional geological body Model.
7. the present invention independently cut for each group closes body Model according to different situations progress classification processing: 1. when independently cutting
Cut closing body Model maximum gauge be less than setting value (setting value can be set to 0.1cm~0.2cm, depending on different regions or row
Can slightly have difference in industry technical standard) when, this is independently cut to the top of the three-dimensional geological body Model of obturator model region
Face is modified to the area three-dimensional terrain model, or this is independently cut to the three-dimensional terrain model of obturator model region and is repaired
It is just being the top surface of the area three-dimensional model of geological structure body；2. when the three-dimensional terrain model for independently cutting obturator model region is high
When the surface model of three-dimensional geologic: this independently being cut to closing body Model labeled as newly-increased class geologic body of banketing, and should
Top surface of the three-dimensional terrain model of independent cutting closing body Model corresponding region as the newly-increased class geologic body of banketing, this is independently cut
Cut bottom surface of the upper surface of the three-dimensional geological body Model of closing body Model corresponding region as the newly-increased class geologic body of banketing；3. when
When the three-dimensional terrain model of independent cutting obturator model region is lower than the surface model of three-dimensional geologic: this is independently cut
It cuts closing body Model to be labeled as deleting class geologic body, and this is independently cut to the three-dimensional terrain model of closing body Model corresponding region
The bottom surface of class geologic body is deleted as this, this independently cuts the upper surface of the three-dimensional geological body Model of closing body Model corresponding region
The top surface of class geologic body is deleted as this.
In the description of this specification, reference term one embodiment, some embodiments, example, specific example or some
The description of example etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in this hair
In at least one bright embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to phase
Same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more
It can be combined in any suitable manner in embodiment or example.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.The scope of the present invention
By appended claims and its equivalent limit.
Claims (8)
1. the system of a kind of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence characterized by comprising topological crosspoint pair
As changing model computation module, topology intersection boundary model computation module, earth's surface segmentation module, geology segmentation module, independent cutting
Obturator model computation module and geologic body correction module, wherein
The topology crosspoint objectification model computation module is used to carry out for three-dimensional terrain model and three-dimensional geological body Model
Crosspoint calculates, and the crosspoint of three-dimensional terrain model and three-dimensional geological body Model is calculated, and record crosspoint respectively three
The triangulation network number information in terrain model and three-dimensional geological body Model is tieed up, three-dimensional terrain model and three-dimensional geological body Model are obtained
Topological crosspoint objectification model；
The topology intersection boundary model computation module is used to that intersection point to be calculated according to the topological crosspoint objectification model
Gather constituted each group autonomous closure and intersect boundary, and adjusts the node counterclockwise row for generating every group of independent intersection closed boundary
Sequence, whole generation topology of finally converging intersect boundary model；
The earth's surface segmentation module is used to intersect boundary model according to topology, and three-dimensional terrain model is divided into intersection border inner
The earth's surface triangulation network in set with intersect border outer the earth's surface triangulation network outside set；
The geology segmentation module is used to intersect boundary model for each stratum bounding surface model of three-dimensional geologic according to topology
It is divided into the stratigraphic boundary curved surface triangle gathered in the stratigraphic boundary curved surface triangulation network of intersection border inner and intersect border outer
The outer set of net；
The independent cutting obturator model computation module is used to intersect boundary for each group of autonomous closure, which is intersected
Set is combined with set in the curved surface triangulation network of stratigraphic boundary in the earth's surface triangulation network in boundary, and building obtains closing intersection
The cutting closing body Model of independence corresponding to boundary；
The geologic body correction module is used to independently cut envelope according to each group that independent cutting obturator model computation module obtains
Climbing form type is closed, revised three-dimensional geological body Model is obtained.
2. the system of three-dimensional earth's surface as described in claim 1 and the modeling of model of geological structure body topological coherence, which is characterized in that described
Geologic body correction module obtains revised three-dimensional geological body Model, includes the following steps:
When the maximum gauge of the independent cutting closing body Model is less than setting value, this is independently cut to obturator model and is existed
The top surface of the three-dimensional geological body Model in region is modified to the earth's surface internal cutting model in the region, or this is independently cut obturator
The three-dimensional terrain model of model region is modified to the stratum internal cutting model in the region；
When the earth's surface internal cutting model of the independent cutting obturator model region is higher than stratum internal cutting model: by this
Independent cutting closing body Model is labeled as newly-increased class geologic body of banketing, and this is independently cut to the earth's surface internal cutting of closing body Model
Top surface of the model as the newly-increased class geologic body of banketing, the stratum internal cutting model for independently cutting closing body Model are new as this
Increase the bottom surface for class geologic body of banketing；
When the earth's surface internal cutting model of the independent cutting obturator model region is lower than stratum internal cutting model: by this
Independent cutting closing body Model is labeled as deleting class geologic body, and this is independently cut to the earth's surface internal cutting model of closing body Model
The bottom surface of class geologic body is deleted as this, which deletes class geology as this
The top surface of body.
3. the system of three-dimensional earth's surface as described in claim 1 and the modeling of model of geological structure body topological coherence, which is characterized in that described
Topological crosspoint objectification model computation module is used to carry out crosspoint meter for three-dimensional terrain model and three-dimensional geological body Model
It calculates, includes the following steps:
The unified minimum cuboid outsourcing BOX Model of three-dimensional terrain model and three-dimensional geological body Model is calculated；
Respectively along X, Y, Z-direction, cuboid outsourcing BOX Model is carried out respectively as length, width and height according to the normal pitch of setting
Three-dimensional dividing obtains spatial cuboids mesh generation model；
The node coordinate for counting three-dimensional terrain model is located at the distribution index in spatial cuboids mesh generation model；
The node coordinate of statistics three-dimensional geological body Model is located at the distribution index in spatial cuboids mesh generation model；
It is located at distribution index in spatial cuboids mesh generation model and dimensionally according to the node coordinate of three-dimensional terrain model
The node coordinate of plastid model is located at the distribution index distribution index in spatial cuboids mesh generation model, and statistics obtains three-dimensional
Terrain model intersects the triangulation network with potential in three-dimensional geological body Model；
Intersect the triangulation network according to potential, calculate the crosspoint of three-dimensional terrain model and three-dimensional geological body Model, and records intersection
Point in three-dimensional terrain model and the triangulation network number information in three-dimensional geological body Model, obtains three-dimensional terrain model and three-dimensional respectively
The topological crosspoint objectification model of model of geological structure body.
4. the system of three-dimensional earth's surface as described in claim 1 and the modeling of model of geological structure body topological coherence, which is characterized in that described
Independent cutting obturator model computation module intersects boundary for each group of autonomous closure, extracts from gathering in the earth's surface triangulation network
Corresponding earth's surface internal cutting model, set extracts corresponding stratum internal cutting model out of stratigraphic boundary the curved surface triangulation network；According to each
Earth's surface internal cutting model and stratum internal cutting model corresponding to group autonomous closure intersection boundary, construct one group completely dimensionally
The independent cutting closing body Model that table model intersects with three-dimensional geological body Model.
5. a kind of method of three-dimensional earth's surface and the modeling of model of geological structure body topological coherence, which comprises the steps of:
Step S1 carries out crosspoint calculating for three-dimensional terrain model and three-dimensional geological body Model, three-dimensional earth's surface mould is calculated
The crosspoint of type and three-dimensional geological body Model, and crosspoint is recorded respectively in three-dimensional terrain model and three-dimensional geological body Model
Triangulation network number information obtains the topological crosspoint objectification model of three-dimensional terrain model and three-dimensional geological body Model；
The each group autonomous closure that intersection point set is constituted is calculated according to the topological crosspoint objectification model in step S2
Intersect boundary, and adjust the node sequencing counterclockwise for generating every group of independent intersection closed boundary, whole generations topology of finally converging intersects
Boundary model；
Step S3 intersects boundary model according to topology, three-dimensional terrain model is divided into the earth's surface triangulation network of intersection border inner
Gather outside interior set and the earth's surface triangulation network for intersecting border outer；
Each stratum bounding surface model of three-dimensional geologic is divided into intersection boundary according to topology intersection boundary model by step S4
Gather outside set and the stratigraphic boundary curved surface triangulation network for intersecting border outer in the internal stratigraphic boundary curved surface triangulation network；
Step S5 intersects boundary for each group of autonomous closure, will the closing intersect in the earth's surface triangulation network in boundary set with
Set is combined in the curved surface triangulation network of stratigraphic boundary, and building obtains independence cutting obturator corresponding to closing intersection boundary
Model；
Step S6 independently cuts closing climbing form type according to each group that independent cutting obturator model computation module obtains, is repaired
Three-dimensional geological body Model after just.
6. the method for three-dimensional earth's surface as claimed in claim 5 and the modeling of model of geological structure body topological coherence, which is characterized in that in institute
It states in step S1,
For three-dimensional terrain model and three-dimensional geological body Model, crosspoint calculating is carried out, is included the following steps:
The unified minimum cuboid outsourcing BOX Model of three-dimensional terrain model and three-dimensional geological body Model is calculated；
Respectively along X, Y, Z-direction, cuboid outsourcing BOX Model is carried out respectively as length, width and height according to the normal pitch of setting
Three-dimensional dividing obtains spatial cuboids mesh generation model；
The node coordinate for counting three-dimensional terrain model is located at the distribution index in spatial cuboids mesh generation model；
The node coordinate of statistics three-dimensional geological body Model is located at the distribution index in spatial cuboids mesh generation model；
It is located at distribution index in spatial cuboids mesh generation model and dimensionally according to the node coordinate of three-dimensional terrain model
The node coordinate of plastid model is located at the distribution index in spatial cuboids mesh generation model, and statistics obtains three-dimensional terrain model
Intersect the triangulation network with potential in three-dimensional geological body Model；
Intersect the triangulation network according to potential, calculate the crosspoint of three-dimensional terrain model and three-dimensional geological body Model, and records intersection
Point in three-dimensional terrain model and the triangulation network number information in three-dimensional geological body Model, obtains three-dimensional terrain model and three-dimensional respectively
The topological crosspoint objectification model of model of geological structure body.
7. the method for three-dimensional earth's surface as claimed in claim 5 and the modeling of model of geological structure body topological coherence, which is characterized in that in institute
It states in step S5, intersects boundary for each group of autonomous closure, correspond to earth's surface internal cutting from extracting in set in the earth's surface triangulation network
Model, set extracts corresponding stratum internal cutting model out of stratigraphic boundary the curved surface triangulation network；Intersected according to each group of autonomous closure
Earth's surface internal cutting model corresponding to boundary and stratum internal cutting model, one group of building completely three-dimensional terrain model with dimensionally
The independent cutting closing body Model of plastid model intersection.
8. the method for three-dimensional earth's surface as claimed in claim 5 and the modeling of model of geological structure body topological coherence, which is characterized in that in institute
It states in step S6, each group obtained based on independent cutting obturator model computation module independently cuts closing body Model, is repaired
Three-dimensional geological body Model after just, comprising:
When the maximum gauge for independently cutting closing body Model is less than setting value, this is independently cut to obturator model region
Three-dimensional terrain model be modified to the stratum internal cutting model in the region；
When the earth's surface internal cutting model for independently cutting obturator model region is higher than stratum internal cutting model: by the independence
This is independently cut the earth's surface internal cutting model for closing body Model labeled as newly-increased class geologic body of banketing by cutting closing body Model
As the top surface of the newly-increased class geologic body of banketing, which increases newly as this is filled out
The bottom surface of great soil group geologic body；
When the earth's surface internal cutting model for independently cutting obturator model region is lower than stratum internal cutting model: by the independence
Cutting closing body Model labeled as deleting class geologic body, and this independently is cut close the earth's surface internal cutting model of body Model as
This deletes the bottom surface of class geologic body, which deletes class geologic body as this
Top surface.
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