CN110096143A - A kind of concern area of threedimensional model determines method and device - Google Patents
A kind of concern area of threedimensional model determines method and device Download PDFInfo
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- CN110096143A CN110096143A CN201910269921.0A CN201910269921A CN110096143A CN 110096143 A CN110096143 A CN 110096143A CN 201910269921 A CN201910269921 A CN 201910269921A CN 110096143 A CN110096143 A CN 110096143A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
Abstract
The embodiment of the invention discloses a kind of concern areas of threedimensional model to determine that method and device, method include: the display interface current according to threedimensional model, obtains current camera looks into fee point position and camera sight line direction；Current central region point is determined according to the camera looks into fee point position and the camera sight line direction；The geometric center position of target submodel is obtained, and calculates the spacing distance of the camera looks into fee point position and the geometric center position；The concern area of current threedimensional model is determined according to the spacing distance and central region point.The False Rate for paying close attention to user area is greatly reduced, so that showing the content of user's concern in interface, further increases the utilization rate of resource.
Description
Technical field
The present embodiments relate to field of computer technology, and in particular to a kind of concern area of threedimensional model determine method and
Device.
Background technique
In the scene of browsing threedimensional model, the point of observation position of user and direction of visual lines can be according to set interactions
Mode freely changes, it is sometimes desirable to according to the image being finally presented on user's screen come the concern area of intelligent recognition user, and
Rendering content is dynamically modified according to the concern area of user.
When area is paid close attention in identification, existing method is concerned the center of model whether in the current visual field by detection.
Such as: when user's point of observation distance be concerned model it is far when, model detail is invisible at this time, when user's distant surveillance
Paying close attention to area should be in peripheral information, since model center is still in the visual field, and model can be mistaken for by paying close attention to area；When user's point of observation exists
In model outwardly observing and nursing when, due to model center point in direction of visual lines behind not in the visual field, concern area can be mistaken for
Other peripheral informations；When the local time of user's amplifying observation model outside model, since model center point is not in the visual field, close
Note area can be mistaken for periphery.
Therefore, there can be very big error in certain special angles to the identification in concern area in the prior art, cause user
The misjudgment in concern area causes the waste of resource so as to cause the content for showing user in interface and being not concerned with.
Summary of the invention
Since existing method is there are the above problem, the embodiment of the present invention proposes that a kind of concern area of threedimensional model determines method
And device.
In a first aspect, the embodiment of the present invention proposes that a kind of concern area of threedimensional model determines method, comprising:
According to the current display interface of threedimensional model, current camera looks into fee point position and camera sight line direction are obtained；
Current central region point is determined according to the camera looks into fee point position and the camera sight line direction；
The geometric center position of target submodel is obtained, and calculates the camera looks into fee point position and the geometric center position
The spacing distance set；
The concern area of current threedimensional model is determined according to the spacing distance and central region point；
Wherein, the target submodel is the submodel of the threedimensional model.
Second aspect, the embodiment of the present invention also propose a kind of concern area determining device of threedimensional model, comprising:
Position acquisition module obtains current camera looks into fee point position for the display interface current according to threedimensional model
With camera sight line direction；
Visual field determining module, for determining current view according to the camera looks into fee point position and the camera sight line direction
Wild central point；
Distance calculation module for obtaining the geometric center position of target submodel, and calculates the camera looks into fee point
Set the spacing distance with the geometric center position；
Area's determining module is paid close attention to, for determining current threedimensional model according to the spacing distance and central region point
Pay close attention to area；
Wherein, the target submodel is the submodel of the threedimensional model.
The third aspect, the embodiment of the present invention also propose a kind of electronic equipment, comprising:
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Order is able to carry out the above method.
Fourth aspect, the embodiment of the present invention also propose a kind of non-transient computer readable storage medium, the non-transient meter
Calculation machine readable storage medium storing program for executing stores computer program, and the computer program makes the computer execute the above method.
As shown from the above technical solution, the embodiment of the present invention is by determining current central region point and target submodel
Geometric center position calculates the spacing distance of camera looks into fee point position and geometric center position, and according to spacing distance and the visual field
Central point determines the concern area of current threedimensional model, the False Rate for paying close attention to user area is greatly reduced, so that showing in interface
The content of user's concern, further increases the utilization rate of resource.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is that a kind of concern area for threedimensional model that one embodiment of the invention provides determines the flow diagram of method；
Fig. 2 is a kind of position view for threedimensional model that one embodiment of the invention provides；
Fig. 3 is a kind of rendering schematic diagram for threedimensional model that one embodiment of the invention provides；
Fig. 4 is a kind of structural schematic diagram of the concern area's determining device for threedimensional model that one embodiment of the invention provides；
Fig. 5 is the logic diagram for the electronic equipment that one embodiment of the invention provides.
Specific embodiment
With reference to the accompanying drawing, further description of the specific embodiments of the present invention.Following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
The concern area that Fig. 1 shows a kind of threedimensional model provided in this embodiment determines the flow diagram of method, comprising:
S101, according to the current display interface of threedimensional model, obtain current camera looks into fee point position and camera sight line side
To.
Specifically, the threedimensional model is the model that can carry out the operations such as three-dimensional rotation, movement, for example including street,
The three-dimensional map model in house etc..
The display interface that the camera looks into fee point is set to the current threedimensional model obtained according to three-dimensional modeling theory is corresponding
Threedimensional model in point of observation position.
The camera sight line direction is that the display interface of the current threedimensional model obtained according to three-dimensional modeling theory is corresponding
Direction of visual lines.
For example, in real world, which carries out along the camera sight line direction
Shooting, obtained image are identical as current display interface.
S102, current central region point is determined according to the camera looks into fee point position and the camera sight line direction.
Specifically, the point of current display interface is projected along the camera sight line direction from the camera looks into fee point position,
As current central region point.
S103, the geometric center position for obtaining target submodel, and calculate the camera looks into fee point position and the geometry
The spacing distance of center.
Wherein, the target submodel is the submodel of the threedimensional model, and the target submodel is current of interest
Object, can be a cell, a building or a certain suite.
The geometric center position of the target submodel is the center of current object of interest.Such as it is currently closed
The object of note is cell, and cell land occupation is rectangle, and a height of 50 meters of highest building, then geometric center position is during this is rectangular
At 25 meters of height of heart point.
The spacing distance of the camera looks into fee point position and the geometric center position be the two point between Euclidean away from
From.
S104, the concern area that current threedimensional model is determined according to the spacing distance and central region point.
Specifically, the spacing distance is judged, while to the positional relationship of central region point and target submodel
Judged, so that it is determined that the concern area of current threedimensional model.
The present embodiment is calculated camera and is seen by the geometric center position of determining current central region point and target submodel
The spacing distance of a position and geometric center position is examined, and current threedimensional model is determined according to spacing distance and central region point
Area is paid close attention to, the False Rate for paying close attention to user area is greatly reduced, so that showing the content of user's concern in interface, is further increased
The utilization rate of resource.
Further, on the basis of above method embodiment, S102 is specifically included:
The camera looks into fee point position is obtained along the ray in the camera sight line direction, and obtains the ray and described three
The intersection point on the ground in dimension module, and the intersection point is determined as the central region point.
Specifically, starting point is set to camera looks into fee point first, emits a ray along camera sight line direction, this is taken to penetrate
The intersection point of line and ground, the intersection point are central region point.
By obtaining the intersection point of ray and ground, central region point can be easily and accurately determined.
Further, on the basis of above method embodiment, the geometric center of target submodel is obtained described in S103
Position specifically includes:
Box is wrapped up to target submodel construction cube, as shown in Fig. 2, calculating the center of the cube package box
Position, and using the center of cube package box as the geometric center position of the target submodel.
Specifically, when target submodel is cell, cube package box can be that can wrap up entire cell most
Small cubes.
Box is wrapped up by construction cube, fast and easy determines the geometric center position of target submodel, i.e. target submodule
The geometric center position of type is the central point of the cube.
Further, on the basis of above method embodiment, after the S102, further includes:
S1023, the central region point is judged whether except current screen, if so, determining current threedimensional model
Concern area is a model distant place.
S104 is specifically included:
If S1041, judgement know the spacing distance less than the first preset value, and central region point is at described cube
Body wraps up in box, it is determined that the concern area of current threedimensional model is the target submodel；
If S1042, judgement know that the spacing distance is less than first preset value, and central region point is not in institute
It states in cube package box, it is determined that the concern area of current threedimensional model is surrounding enviroment；
If S1043, judgement know that the spacing distance is greater than first preset value and less than the second preset value, it is determined that
The concern area of current threedimensional model is surrounding enviroment；
If S1044, judgement know that the spacing distance is greater than second preset value, it is determined that the pass of current threedimensional model
Note area is a model distant place.
Wherein, first preset value and second preset value are preset distance value.
Specifically, three classes are divided into the concern of current threedimensional model: a model distant place, target submodel and surrounding enviroment.
Wherein, concern area be a model distant place indicate the content currently paid close attention to of user be distance objective submodel pre-determined distance it
Place except outer place, such as 100 meters of distance objective submodel；Concern area is that target submodel indicates that user currently pays close attention to
Content be target submodel itself；It is distance objective submodel that concern area, which is the content that surrounding enviroment indicate that user currently pays close attention to,
Place within place in pre-determined distance, such as 100 meters of distance objective submodel.
According to spacing distance and the first preset value/second preset value relationship, point of observation and observed mesh can determine
Mark the distance between submodel situation；By the relationship according to central region point and target submodel, target submodule can determine
Can type be observed.In conjunction with the two situation, the current concern area of user can be accurately determined.
By taking certain cell as an example, as shown in Fig. 2, when the concern area for actually carrying out threedimensional model determines, comprising the following steps:
A1, the cell the smallest cube package box is constructed, such as obtains the highest point of the cell and in all directions
Four outermost points (most east point, most south point, most Western-style pastry and most north point) of four direction, respectively with horizontal plane where highest point, most
The two thing faces and ground where two north and south face, most south point and most north point where east point and most Western-style pastry are constituted minimum
Cube wrap up box；
A2, the camera looks into fee point position P for obtaining current threedimensional model0；
A3, the camera sight line direction v for obtaining current threedimensional model calculate P according to conventional geometry calculation formula0Along the side v
To the intersection point with ground, i.e. central region point position P1；
A4, the geometric center position P for obtaining cube package box2；
A5, P is calculated0With P2The distance between value be d；
A6, divide situation discussion according to the value of d:
If d < 1000 and central region point position P1In cube package box or model center is in the visual field, then determines to use
Family concern area is the cell；
If d < 1000 and central region point position P1Not in cube package box or model center is not in the visual field, then sentences
Determine user and pays close attention to the surrounding enviroment that area is the cell；
If d>=1000 and d<2000, determine that user pays close attention to the surrounding enviroment that area is the cell；
If d >=2000, determine that user pays close attention to the model distant place that area is the cell.
The present embodiment is by comprehensively considering central region point position, the geometric center position of target submodel, camera looks into fee
Point position and camera looks into fee point position and the spacing distance of geometric center position these factors, can easily and accurately analyze and sentence
The concern area of disconnected user out.
Further, on the basis of above method embodiment, the method also includes:
S105, corresponding rendering content is determined according to the concern area, and according to the rendering content to current display
Interface is rendered.
Specifically, when the concern area of user is a model distant place, then the rendering content of current display interface can choose small
The overall condition on area periphery, such as park, subway line, the crucial terrestrial reference in city etc.；When the concern area of user is peripheral ring
When border, then the rendering content of current display interface can choose traffic conditions, road name and market of cell periphery etc., such as
Shown in Fig. 3；When the concern area of user is target submodel, then the rendering content of current display interface can choose current area
Green coverage, Lou Gao, auxiliary facility, or the information such as area, house type in current house, to facilitate user to check.
Fig. 4 shows a kind of structural schematic diagram of concern area's determining device of threedimensional model provided in this embodiment, described
Device includes: position acquisition module 401, visual field determining module 402, distance calculation module 403 and pays close attention to area's determining module 404,
Wherein:
The position acquisition module 401 is used for the display interface current according to threedimensional model, obtains current camera looks into fee
Point position and camera sight line direction；
The visual field determining module 402 is used to be worked as according to the camera looks into fee point position and camera sight line direction determination
Preceding central region point；
The distance calculation module 403 is used to obtain the geometric center position of target submodel, and calculates the camera and see
Examine the spacing distance of a position and the geometric center position；
Concern area determining module 404 is used to be determined according to the spacing distance and central region point current three-dimensional
The concern area of model；
Wherein, the target submodel is the submodel of the threedimensional model.
Specifically, the position acquisition module 401 display interface current according to threedimensional model obtains current camera and sees
Examine a position and camera sight line direction；The visual field determining module 402 is regarded according to the camera looks into fee point position and the camera
Line direction determines current central region point；The distance calculation module 403 obtains the geometric center position of target submodel, and
Calculate the spacing distance of the camera looks into fee point position and the geometric center position；404 basis of concern area determining module
The spacing distance and central region point determine the concern area of current threedimensional model.
The present embodiment is calculated camera and is seen by the geometric center position of determining current central region point and target submodel
The spacing distance of a position and geometric center position is examined, and current threedimensional model is determined according to spacing distance and central region point
Area is paid close attention to, the False Rate for paying close attention to user area is greatly reduced, so that showing the content of user's concern in interface, is further increased
The utilization rate of resource.
Further, on the basis of above-mentioned apparatus embodiment, the visual field determining module 402 is specifically used for from the phase
Machine point of observation position obtains the ray and the ground in the threedimensional model along camera sight line direction divergent-ray
Intersection point, and the intersection point is determined as the central region point.
Further, on the basis of above-mentioned apparatus embodiment, described device further include:
Visual field judgment module, if for judging to know the central region point except current screen, it is determined that when first three
The concern area of dimension module is a model distant place.
Further, on the basis of above-mentioned apparatus embodiment, the distance calculation module 403 is specifically used for the mesh
It marks submodel construction cube and wraps up box, calculate the center of the cube package box as the several of the target submodel
What center.
Further, on the basis of above-mentioned apparatus embodiment, concern area determining module 404 is specifically used for:
If judgement knows the spacing distance less than the first preset value, and central region point is wrapped up in the cube
In box, it is determined that the concern area of current threedimensional model is the target submodel；
If judgement knows that the spacing distance is less than first preset value, and central region point is not at described cube
Body wraps up in box, it is determined that the concern area of current threedimensional model is surrounding enviroment；
If judgement knows that the spacing distance is greater than first preset value and less than the second preset value, it is determined that when first three
The concern area of dimension module is surrounding enviroment；
If judgement knows that the spacing distance is greater than second preset value, it is determined that the concern area of current threedimensional model is
A model distant place.
Further, on the basis of above-mentioned apparatus embodiment, the target submodel includes: cell, a building or one
Suite.
Further, on the basis of above-mentioned apparatus embodiment, described device further include:
Interface rendering module, for determining corresponding rendering content according to the concern area, and according to the rendering content
Current display interface is rendered.
The concern area determining device of threedimensional model described in the present embodiment can be used for executing above method embodiment, former
Reason is similar with technical effect, and details are not described herein again.
Referring to Fig. 5, the electronic equipment, comprising: processor (processor) 501, memory (memory) 502 and total
Line 503；
Wherein,
The processor 501 and memory 502 complete mutual communication by the bus 503；
The processor 501 is used to call the program instruction in the memory 502, to execute above-mentioned each method embodiment
Provided method.
The present embodiment discloses a kind of computer program product, and the computer program product includes being stored in non-transient calculating
Computer program on machine readable storage medium storing program for executing, the computer program include program instruction, when described program instruction is calculated
When machine executes, computer is able to carry out method provided by above-mentioned each method embodiment.
The present embodiment provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage medium
Computer instruction is stored, the computer instruction makes the computer execute method provided by above-mentioned each method embodiment.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
It is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although reference
Invention is explained in detail for previous embodiment, those skilled in the art should understand that: it still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features；And this
It modifies or replaces, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of concern area of threedimensional model determines method characterized by comprising
According to the current display interface of threedimensional model, current camera looks into fee point position and camera sight line direction are obtained；
Current central region point is determined according to the camera looks into fee point position and the camera sight line direction；
The geometric center position of target submodel is obtained, and calculates the camera looks into fee point position and the geometric center position
Spacing distance；
The concern area of current threedimensional model is determined according to the spacing distance and central region point；
Wherein, the target submodel is the submodel of the threedimensional model.
2. the method according to claim 1, wherein described according to the camera looks into fee point position and the camera
Direction of visual lines determines current central region point, specifically includes:
The camera looks into fee point position is obtained along the ray in the camera sight line direction, and obtains the ray and the three-dimensional mould
The intersection point on the ground in type, and the intersection point is determined as the central region point.
3. according to the method described in claim 2, it is characterized in that, described according to the camera looks into fee point position and the camera
Direction of visual lines determines after current central region point, further includes:
The central region point is judged whether except current screen, if so, determining the concern Qu Weimo of current threedimensional model
A type distant place.
4. the method according to claim 1, wherein the geometric center position for obtaining target submodel, tool
Body includes:
Box is wrapped up to target submodel construction cube, calculates the center of the cube package box, and will be described
Cube wraps up geometric center position of the center of box as the target submodel.
5. according to the method described in claim 4, it is characterized in that, described according to the spacing distance and central region point
The concern area for determining current threedimensional model, specifically includes:
If judgement knows the spacing distance less than the first preset value, and central region point wraps up box in the cube
It is interior, it is determined that the concern area of current threedimensional model is the target submodel；
If judgement knows that the spacing distance is less than first preset value, and central region point is not in the cube packet
It wraps up in box, it is determined that the concern area of current threedimensional model is surrounding enviroment；
If judgement knows that the spacing distance is greater than first preset value and less than the second preset value, it is determined that current three-dimensional mould
The concern area of type is surrounding enviroment；
If judgement knows that the spacing distance is greater than second preset value, it is determined that the concern area of current threedimensional model is model
A distant place.
6. the method according to claim 1, wherein the target submodel includes: cell, a building or a set of
Room.
7. the method according to claim 1, wherein the method also includes:
Corresponding rendering content is determined according to the concern area, and wash with watercolours is carried out to current display interface according to the rendering content
Dye.
8. a kind of concern area determining device of threedimensional model characterized by comprising
Position acquisition module obtains current camera looks into fee point position and phase for the display interface current according to threedimensional model
Machine direction of visual lines；
Visual field determining module, for being determined in the current visual field according to the camera looks into fee point position and the camera sight line direction
Heart point；
Distance calculation module, for obtaining the geometric center position of target submodel, and calculate the camera looks into fee point position and
The spacing distance of the geometric center position；
Area's determining module is paid close attention to, for determining the concern of current threedimensional model according to the spacing distance and central region point
Area；
Wherein, the target submodel is the submodel of the threedimensional model.
9. a kind of electronic equipment characterized by comprising
At least one processor；And
At least one processor being connect with the processor communication, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
Enough methods executed as described in claim 1 to 7 is any.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer program is stored up, the computer program makes the computer execute the method as described in claim 1 to 7 is any.
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| CN111178191A (en) * | 2019-11-11 | 2020-05-19 | 贝壳技术有限公司 | Information playing method and device, computer readable storage medium and electronic equipment |
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