CN106971417B - A kind of method and system showing three-dimensional scatter plot in a browser - Google Patents
A kind of method and system showing three-dimensional scatter plot in a browser Download PDFInfo
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- CN106971417B CN106971417B CN201710345808.7A CN201710345808A CN106971417B CN 106971417 B CN106971417 B CN 106971417B CN 201710345808 A CN201710345808 A CN 201710345808A CN 106971417 B CN106971417 B CN 106971417B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
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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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/04815—Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
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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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
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Abstract
The invention discloses the method and system that one kind shows three-dimensional scatter plot in a browser, are related to three-dimensional scatter plot display field.A method of showing three-dimensional scatter plot in a browser, it is the following steps are included: initiation parameter, including coordinate system parameters, three-dimensional space background color, reference axis, the information such as reference line；The data received are subjected to a series of processing；The data after handling well are rendered in given container using WebGL technology；Control operation to view scene；A kind of system showing three-dimensional scatter plot in a browser, comprising: parameter initialization module, data processing module, three-dimensional scatter plot display module and human-computer interaction module.The present invention is based on browsers, have a wide range of application；Optimize performance according to visual angle change；Optimize performance according to the density of point；Dynamically Announce data；It is small that server calculates pressure；It has strong interactivity.
Description
Technical field
The present invention relates to three-dimensional scatter plot display field, especially a kind of method for showing three-dimensional scatter plot in a browser
And system.
Background technique
Three-dimensional scatter plot is mainly studied in the relationship in the three-dimensional space determined by three variables between variable, is commonly used in
Show and compare numerical value, such as science data, statistical data and project data.It can intuitively reflect that the quantity between variable is closed
Connection trend, density degree etc..
Usually the three-dimensional scatter plot of display mainly passes through graph tool or flash etc. and draws, based on B/S mode
It cannot be generated in real time by dynamic data in system, display inaccuracy, and reusability is poor.
And use B/S mode to show that the technology of three-dimensional scatter plot is generally based on WebGL, but this mode currently without
A kind of method of system shows three-dimensional scatter plot, especially can occupy most of memory when putting very much, cause page Caton,
And control is inconvenient for operation.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind to show three-dimensional scatter plot in a browser
Method and system, the present invention is based on browsers, have a wide range of application；Optimize performance according to visual angle change, the density of point；Server meter
It is small to calculate pressure；Can Dynamically Announce data, have strong interactivity.
A method of showing three-dimensional scatter plot in a browser, which is characterized in that it the following steps are included:
Data processing: the isodisperse of each point in data coordinate in three dimensions and coordinate space is determined；Interception
The set of data point all in unit range；Judge the degree of taper put in unit range, the transparency of the point of calculating and
Size；
The display of three-dimensional scatter plot: data are shown in three-dimensional system of coordinate, carry out entire scene using to constant volume device
Rendering.
A method of showing three-dimensional scatter plot in a browser, further includes:
Three dimensional coordinate space is generated, the specific steps are that:
Set the full-length of three-dimensional space；
Judge whether data provide entire three-dimensional space background color data, is the color then provided using data, otherwise
Use system default color；
Judge three i.e. [X of number of min and max maximum absolute value in tri- axis of XYZ in data1, Y1, Z1], it is set respectively to three axis
Set a Length Weight [XW, YW, ZW]；
Length Weight [the X of three axis is calculated according to full-lengthW, YW, ZW], then three axis are scaled respectively according to weight, it is raw
At the X-axis in coordinate system, Y-axis, Z axis generates grid surface in turn.
It further limits, the data processing, the specific steps are that:
According to arbitrary point P in weight scaled datai=[xi, yi, zi], the seat of (i=1,2,3 ..., N) in three dimensions
Ewp is marked, the size and transparency of system default are used if N is less than default default value, otherwise according in unit range
Density delete points, until be less than or equal to default default value；
Determine coordinate space isodisperse e, after three-dimensional space e equal part, every part is range Ri(i=1,2,3 ..., e) it determines
The radix b put in each range Ri；
Data intercept is in unit range RiThe set data of interior all pointsi, point set dataiThe number of interior point is DLi, meter
Calculate unit range RiThe density d of interior pointi；
According to range RiInterior dot density diThe degree of taper of point in determination range: when the density d of pointiWhen greater than 1, range
RiInterior point is reduced to 8；Work as density diLess than 1 and when being greater than 0.6, range RiInterior point is reduced to 6；Density diThen not less than 0.6
The number of reduced point.Reduced point is by RiInterior point set dataiExtra point is deleted, and only Yus 8 or 6；
Computer capacity RiThe transparency O of interior pointiWith size Si；
Data point is treated as the new data set of different transparencies and size.
It further limits, the default default value is 1000.
It further limits, the value of the coordinate space isodisperse e is 8,64 and 512, and radix b is 10.
It further limits, the density d of the pointiCalculation formula be di=DLi/ b, (i=1,2,3 ..., e).
It further limits, the computer capacity RiThe transparency O of interior pointiWith size Si, specifically:
Wherein S is default size a little.
It further limits, the display of the three-dimensional scatter plot: data is shown in three-dimensional system of coordinate, by entire scene
It is rendered in given container, rendering is with " frame " for unit, and each second rendering 60 frame of highest, the rendering of each frame can all obtain
The time of previous frame rendering.
A kind of system showing three-dimensional scatter plot in a browser, it includes: parameter initialization module, data processing mould
Block, three-dimensional scatter plot display module and human-computer interaction module；
The parameter initialization module carries out coordinate system parameters, three-dimensional space background color, reference axis and reference line
Initializing set；
The data processing module, determine each point in data coordinate in three dimensions and coordinate space etc.
Score；The set of data intercept point all in unit range；Judge the degree of taper put in unit range, the point of calculating
Transparency and size；
The three-dimensional scatter plot display module, data are shown in three-dimensional system of coordinate, using will be entire to constant volume device
Scene is rendered；
The human-computer interaction module realizes that 360 degree of left and right, upper and lower 180 degree rotate entire field to the scaling of entire scene
Scape.
The beneficial effects of the present invention are:
(1) it is based on browser, is had a wide range of application.The present invention can use in the browser for arbitrarily supporting HTML5, WebGL,
Without adding in browser including computer end, mobile phone terminal, plate end or other smart machines (such as smart camera, smart television)
Carrying any plug-in unit can be used；
(2) performance is optimized according to visual angle change, the present invention is smoothed by previous frame render time when changing visual angle
It crosses, when visual angle is furthered, saves calculated performance in such a way that the point not in angular field of view does not render；
(3) performance is optimized according to the density of point, the present invention determines by calculating the density put within the scope of equal part according to density
Reduced to subtract the number put in range, to save rendering performance, in final rendering, the number maximum of point is no more than 4096.By
Point having little significance for picture exhibition limited in the screen resolution of computer, excessive, but excessive computer can be consumed
Resource, 4096 points have been enough the visualization characteristic of display data.This is within the scope of the support of browser and before will not giving
End poses a big pressure so that Caton when user's operation；
(4) Dynamically Announce data, system are write based on HTML5, can not be brushed according to data dynamic change when rendering
Again the page is rendered in the case where new page, data, which can be, to be derived from locally, is also possible to request from Ajax；
(5) server calculating pressure is small, and the rendering of image is performed locally, and makes full use of the performance of the machine of each user,
Server stress is shared.Picture has been rendered in server end with traditional, then picture is sent to client difference, has worked as user
When concurrent larger, render mode of the invention, a large amount of rendering is calculated in client, and the calculating pressure of server end is small；
(6) it has strong interactivity, user can amplify, reduce, rotating, translating visual angle, and can be at each
Carry such as clicks, chooses, streaking at the events in data point, so that system has stronger interactivity.
Detailed description of the invention
Fig. 1 is the method flow diagram that one kind shows three-dimensional scatter plot in a browser；
Fig. 2 is the system framework figure that one kind shows three-dimensional scatter plot in a browser.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1, a kind of method for showing three-dimensional scatter plot in a browser specifically comprises the following steps:
S001 generates three dimensional coordinate space:
S101 initializes three dimensional coordinate space, including three-dimensional space background color, coordinate system parameters (reference axis and grid
Face).The not no standard of length in three dimensions first sets a full-length L=200, according to this standard and data
Generate three dimensional coordinate space:
S102: judging whether data provide entire three-dimensional space background color data, is the color then provided using data,
Otherwise system default color is used.
S103: X [min, max, number], Y [min, max, number], Z [min, max, number] in data are obtained
Coordinate axis information: judgement obtains three number [X of min and max maximum absolute value in tri- axis of XYZ respectively1,Y1,Z1], to three axis point
It She Zhi not a Length Weight [XW,YW,ZW]。
S104: the Length Weight [X of three axis is calculated according to full-length LW,YW,ZW], then according to weight respectively to three axis
Scaling generates the X-axis in coordinate system, Y-axis, Z axis；Grid surface is generated according to the number in the data of three axis, such as X [number]
It (indicates [0, X1] segmentation): XY axis indicate plane draw be parallel to Y-axis by number equal part in section [- X1,X1]
Interior line intersects with the bisector for being parallel to X-axis for XY grid surface.
Wherein, weight WK=K1/L.(K=X, Y, Z)
S105: according to above-mentioned steps, tri- axis of XYZ=full-length L is generated, but respectively indicates [- X1,X1],[-Y1,
Y1],[-Z1,Z1] coordinate system, and according to segments number generate XY, XZ, YZ grid surface (face wherein XZ, YZ default
Do not show), ultimately generate three dimensional coordinate space.
The data received are carried out a series of processing by S002:
S201: according to weight [XW,YW,ZW] coordinate (P of each point in scaled datai=[xi,yi,zi]) in three-dimensional space
In coordinate Ewp:
Coordinate Ewp=[XWxi,YWyi,ZWzi], (i=1,2,3 ..., N).Wherein N is the number of data point.
Judge the parameter of the number N initialization points of data point.If N is less than default value 1000, then using system default
(data provide the face then provided using data for size (being defaulted as side length as 5 cube) and transparency (being defaulted as 1), color
Color)；If N is greater than 1000, points are deleted according to the density in unit range:
S202: determining coordinate space isodisperse e, and after three-dimensional space e equal part, every part is range Ri(i=1,2,3 .., e),
Determine each range RiThe radix b of interior point.Isodisperse e can value be 8,64,512.Isodisperse e takes the default value to be in this example
It is 10 that 512, radix b, which take default value,.
S203: data intercept is in unit range RiThe set data of interior all pointsi, point set dataiThe number of interior point is
DLi, unit of account range RiThe density d of interior pointi。
Density di=DLi/ b, (i=1,2,3 ..., e).
S204: according to range RiInterior dot density diThe degree of taper of point in determination range:
When the density d of pointiWhen greater than 1, range RiInterior point is reduced to 8；Work as density diLess than 1 and when being greater than 0.6, range
RiInterior point is reduced to 6；Density diThe then not number of reduced point less than 0.6.Reduced point is by RiInterior point set dataiIt deletes more
Remaining point, and only Yu 8 or 6.Specifically by point set datai8 or 6 equal parts take first point data of every equal part.
Computer capacity RiThe transparency O of interior pointiWith size Si:
Wherein S is default size a little.
S205: the different transparencies and size that data point is treated as most 4096 points according to above-mentioned steps (get over by point
The size of intensive position point is smaller and transparency is lower) new data set.
S003: the data after above-mentioned handle well are shown in the three-dimensional system of coordinate initialized based on WebGL technology
Show, finally renders entire scene in given container.Wherein rendering is with " frame " for unit, each second rendering highest 60
Frame, the rendering of each frame can all obtain the time of previous frame rendering, enable the transition that view is smooth, to realize the three-dimensional
The displaying of scatter plot.
S004: it is operated with user's interactive controlling: being rolled before mouse roller, reduce entire view scene, when scene narrows down to one
It is no longer reduced when fixed position；It is rolled after mouse roller, amplifies entire view scene, equally no longer when being amplified to certain position
Amplification；Left mouse button and movement are pinned, 360 degree can be controlled, upper and lower 180 degree rotates entire scene；It pins right mouse button and moves
It is dynamic, entire scene can be translated；When user's control operation, each frame can equally obtain previous frame render time, so that entire view
The smooth transition of the operations such as scaling, rotation, the translation of figure energy, the final control realized to view scene operate.
A kind of system showing three-dimensional scatter plot in a browser, it includes: parameter initialization module, data processing mould
Block, three-dimensional scatter plot display module and human-computer interaction module；
The parameter initialization module carries out coordinate system parameters, three-dimensional space background color, reference axis and reference line
Initializing set；
The data processing module, determine each point in data coordinate in three dimensions and coordinate space etc.
Score；The set of data intercept point all in unit range；Judge the degree of taper put in unit range, the point of calculating
Transparency and size；
The three-dimensional scatter plot display module, data are shown in three-dimensional system of coordinate, using will be entire to constant volume device
Scene is rendered；
The human-computer interaction module realizes that 360 degree of left and right, upper and lower 180 degree rotate entire field to the scaling of entire scene
Scape.
It is apparent to those skilled in the art that for convenience of description and succinctly, the side of foregoing description
The specific work process of method, system and module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Disclosed herein method, system and module, may be implemented in other ways.For example, described above
Embodiment be only illustrative, it is practical to realize for example, the division of the module, can be only a kind of logical function partition
When there may be another division manner, such as multiple module or components can be combined or can be integrated into another system, or
Some features can be ignored or not executed.Another point, shown or discussed mutual coupling or direct-coupling or communication
Connection is it may be said that through some interfaces, the indirect coupling or communication connection of system or module can be electrical property, mechanical or other
Form.
The module that the discrete parts illustrates may or may not be physically separated, and show as module
Component may or may not be physical module, it can and it is in one place, or may be distributed over multiple network moulds
On block.It can select some or all of the modules therein according to the actual needs to realize the scheme purpose of the present embodiment.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in a processing module
It is that modules physically exist alone, can also be integrated in two or more modules in a module.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially right in other words
The part of part or the technical solution that the prior art contributes can be embodied in the form of software products, the calculating
Machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be individual
Computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And
Storage medium above-mentioned includes: USB flash disk, mobile hard disk, system memory (Read-Only Memory, ROM), random access memory
The various media that can store program code such as device (Random Access Memory, RAM), magnetic or disk.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (8)
1. one kind show in a browser three-dimensional scatter plot method, which is characterized in that it the following steps are included:
Data processing: the isodisperse of each point in data coordinate in three dimensions and coordinate space is determined；Data intercept
The set of all points in unit range；Judge the degree of taper put in unit range, the transparency and size of the point of calculating；
The display of three-dimensional scatter plot: data are shown in three-dimensional system of coordinate, render entire scene using to constant volume device；
The data processing, the specific steps are that:
According to arbitrary point P in weight scaled datai=[Xi, Yi, Zi], the coordinate of (i=1,2,3 ..., N) in three dimensions
Ewp uses the size and transparency of system default if N is less than default default value, otherwise according in unit range
Density deletes points, until being less than or equal to default default value；
Determine coordinate space isodisperse e, after three-dimensional space e equal part, every part is range Ri(i=1,2,3 ..., e) determine each model
Enclose RiThe radix b of interior point；
Data intercept is in unit range RiThe set data of interior all pointsi, point set dataiThe number of interior point is DLi, unit of account
Range RiThe density d of interior pointi；
According to range RiInterior dot density diThe degree of taper of point in determination range: when the density d of pointiWhen greater than 1, range RiInterior
Point is reduced to 8；Work as density diLess than 1 and when being greater than 0.6, range RiInterior point is reduced to 6；Density diThe then not reduced point less than 0.6
Number, reduced point is by RiInterior point set dataiExtra point is deleted, and only Yus 8 or 6；
The transparency O of point in computer capacity RiiWith size Si；
Data point is treated as the new data set of different transparencies and size.
2. the method that one kind according to claim 1 shows three-dimensional scatter plot in a browser, which is characterized in that also wrap
It includes:
Three dimensional coordinate space is generated, the specific steps are that:
Set the full-length of three-dimensional space；
Judge whether data provide entire three-dimensional space background color data, is the color then provided using data, otherwise uses
System default color；
Judge three i.e. [X of number of min and max maximum absolute value in tri- axis of X Y Z in data1, Y1, Z1], it is respectively set to three axis
One Length Weight [XW, YW, ZW]；
Length Weight [the X of three axis is calculated according to full-lengthW, YW, ZW], then three axis are scaled respectively according to weight, generates and sits
X-axis in mark system, Y-axis, Z axis generate grid surface in turn.
3. the method that one kind according to claim 1 shows three-dimensional scatter plot in a browser, it is characterised in that: described
Default default value is 1000.
4. the method that one kind according to claim 1 shows three-dimensional scatter plot in a browser, it is characterised in that: described
The value of coordinate space isodisperse e is 8,64 and 512, and radix b is 10.
5. the method that one kind according to claim 1 shows three-dimensional scatter plot in a browser, it is characterised in that: described
The density d of pointiCalculation formula be di=DLi/ b, (i=1,2,3 ..., e).
6. the method that one kind according to claim 1 shows three-dimensional scatter plot in a browser, it is characterised in that: described
The transparency O of point in computer capacity RiiWith size Si, specifically:
Wherein S is default size a little.
7. the method that one kind according to claim 1 shows three-dimensional scatter plot in a browser, which is characterized in that described
The display of three-dimensional scatter plot: data are shown in three-dimensional system of coordinate, entire scene are rendered in given container, rendering is
With " frame " for unit, each second rendering 60 frame of highest, the rendering of each frame can all obtain the time of previous frame rendering.
8. the system that one kind described in -7 any one shows the method for three-dimensional scatter plot in a browser according to claim 1,
It is characterized in that, it includes: parameter initialization module, data processing module, three-dimensional scatter plot display module and human-computer interaction mould
Block；
The parameter initialization module carries out coordinate system parameters, three-dimensional space background color, reference axis and reference line initial
Change setting；
The data processing module determines the equal part of each point in data coordinate in three dimensions and coordinate space
Number；The set of data intercept point all in unit range；Judge the degree of taper put in unit range, the point of calculating it is saturating
Lightness and size；
The three-dimensional scatter plot display module, data are shown in three-dimensional system of coordinate, using to constant volume device by entire scene
It is rendered；
The human-computer interaction module realizes that 360 degree of left and right, upper and lower 180 degree rotate entire scene to the scaling of entire scene.
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| CN109189521A (en) * | 2018-07-31 | 2019-01-11 | 郑州向心力通信技术股份有限公司 | A kind of big data analysis methods of exhibiting and system |
| CN109257590A (en) * | 2018-08-30 | 2019-01-22 | 杭州行开科技有限公司 | A kind of naked eye 3D sand table display system and its method |
| CN109636894B (en) * | 2018-10-31 | 2022-10-25 | 成都四方伟业软件股份有限公司 | Dynamic three-dimensional thermodynamic calculation method and system based on pixel rasterization |
| CN111681307B (en) * | 2020-06-08 | 2023-10-20 | 武汉真蓝三维科技有限公司 | Implementation method of dynamic three-dimensional coordinate axis applied to three-dimensional software |
| CN111798553A (en) * | 2020-07-13 | 2020-10-20 | 重庆大学 | WebGL-based three-dimensional model rendering method, system and related device |
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