CN109064540A - view rendering system, spectrum analyzer and rendering method - Google Patents
view rendering system, spectrum analyzer and rendering method Download PDFInfo
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- CN109064540A CN109064540A CN201810909686.4A CN201810909686A CN109064540A CN 109064540 A CN109064540 A CN 109064540A CN 201810909686 A CN201810909686 A CN 201810909686A CN 109064540 A CN109064540 A CN 109064540A
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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
- G06T15/005—General purpose rendering architectures
Abstract
The present invention proposes a kind of view rendering system, spectrum analyzer and rendering method, belongs to view rendering technical field more particularly to a kind of view rendering system, spectrum analyzer and rendering method.Including the first element buffer cell and second element buffer cell, lasting rendering of the first element buffer cell for the rendering element of the lasting variation of view in frequency sweep analytic process；Rendering of the second element buffer cell for view constant in frequency sweep analytic process or the element passively changed, and the rendering of element that is above-mentioned constant or passively changing is detached from rendering thread, only when element changes, independent rendering is carried out in second element buffer cell.Present invention effectively prevents during view rendering, the repetition of element that is constant in view or passively changing is rendered and is calculated, realizes and only carries out rendering calculating when needed, effectively improve analysis efficiency and saves the good effect of electricity consumption.
Description
Technical field
The invention belongs to view rendering technical field more particularly to a kind of view rendering systems, spectrum analyzer and rendering
Method.
Background technique
The process of view rendering is the process after getting ModelAndView, i.e. the render process of view is handle
Model is packaged into map form and takes server end to by the attribute of request.
Spectrum analyzer is the instrument for studying electric signal spectrum structure, is used for signal distortion, percentage modulation spectral purity, frequency
The measurement of the signal parameters such as rate stability and crosstalk can be used to certain ginsengs of the circuit systems such as measuring amplifier and filter
Number, is a kind of multiduty electronic measuring instrument.
Embedded spectroscopy software (hereinafter referred spectroscopy software) very great Cheng that hand-held spectrum analyzer carries
The analysis efficiency of spectrum analyzer and the Expenditure Levels of battery capacity are affected on degree, the view rendering to measurement analysis result is
The part of resource is expended very much in spectroscopy software, and view rendering is persistently carried out at high speed in entire measurement process.
Spectroscopy software is in analysis measurement process, it will usually by single view from view background, signal curve to analysis result etc.
Element is successively rendering to same buffer area from the background, then extremely shows the result copy-once after the completion of rendering in equipment,
Realize the lasting observation to result of spectrum analysis.The features such as small in size due to hand-held spectrum analyzer, system are aobvious without GPU
Card hardware, therefore, the rendering processing of signal is carried out by central processing unit, that is, CPU.
The view of spectroscopy software is made of multiple element, and rendering element is more, computationally intensive, this single layer double buffering wash with watercolours
Dyeing method during test constantly, can by content that is constant or passively changing, as pressed in view log series model background grid,
The elements such as reference amplitude, scanning information, it is this containing a large amount of floating as the signal curve of lasting variation is repeated to render by continuous
The repetition rendering of point-type Logarithmic calculation can continue consumption central processing unit resource, extend single render time and increase battery drain
Amount, and then the analysis efficiency of the reduction soft instrument of hand-held spectrum analysis and battery use duration.
Summary of the invention
The present invention is directed to during measuring the view rendering for analyzing result, to be deposited in spectroscopy software in the prior art
Resource cost the technical issues of, propose it is a kind of with reduce resource consumption and improve view rendering flexibility view rendering
System, spectrum analyzer and rendering method.
To achieve the goals above, the present invention provides a kind of view rendering systems, which is characterized in that including the first element
Buffer cell and second element buffer cell, lasting wash with watercolours of the first element buffer cell for the element of the lasting variation of view
Dye；Rendering of the second element buffer cell for the constant of view or the element passively changed.
Preferably, the view rendering system further includes Data Synthesis display unit, and Data Synthesis display unit is used for
It synthesizes and shows in the first element buffer cell the constant of view in the element, second element buffer cell of the lasting variation of view
Or the rendered picture of the element passively changed.
Preferably, the Data Synthesis display unit further includes display layer setup module, the display layer setting
Module is used to be arranged the display layer background colour of the first element buffer cell, second element buffer cell.
Preferably, the upper layer display layer of the corresponding display equipment of the first element buffer cell, second element buffer cell pair
It should show lower layer's display layer of equipment, wherein the background colour of upper layer display layer is set as Transparent color；The background colour of lower layer's display layer
It is set as black.
The present invention also provides a kind of spectrum analyzers, which is characterized in that including the view rendering system.
The present invention also provides a kind of view rendering methods characterized by comprising
The Type division for rendering element is divided at least two classes, and one kind is the element of the lasting variation of view, another kind of to be
Element that is constant or passively changing；
Independent rendering is carried out to the element of lasting variation, constant or passive variation element.
Preferably, the element persistently changed forms set D, and element therein is identified with Di, i=0,1,2 ... N, N
For element sum to be rendered in set D；
Element that is constant or passively changing forms set S, and element therein is identified with Si, and i=0,1,2 ... M, M are
Element sum to be rendered in set S.
Preferably, the element that view persistently changes is rendered in the corresponding display layer of the first element buffer cell, it is right
Element that is constant or passively changing renders in the corresponding display layer of second element buffer cell.
Preferably, when multiple view switching occurs, according to view dimensions and characteristic of elements, to the first element buffer cell,
Second element buffer cell carries out independent size scaling, and resets to drawing tool Obj State used.
Preferably, the state of element that is constant or passively changing can be set, and change constant or passive variation element
After state, covering change before the content that shows of second element buffer cell display layer, then by the constant or passive change after change
The element of change renders in the corresponding display layer of second element buffer cell.
Preferably, the first element buffer cell, the rendering result of second element buffer cell are supreme from lower layer's display layer
Layer display layer successively persistently copies in display equipment.
Compared with prior art, the advantages and positive effects of the present invention are: by setting two independent first elements
Buffer cell, second element buffer cell, and above-mentioned first element buffer cell carry out continue variation element rendering, it is constant or
The rendering of the element passively changed is detached from rendering thread, slow in second element only when element changes
It rushes and carries out independent rendering in unit, since second element buffer cell is not to continue rendering, it is soft thus to shorten spectrum analysis
Part single render time and reduce battery power consumption, and be more advantageous to improve it is hand-held based on this view rendering system and method
The overall performance of formula spectrum analyzer.In addition, the rendering of the first element buffer cell, second element buffer cell is independently controlled
System, can satisfy more rendering demands, improves the flexibility of rendering, thus effectively prevent to constant in view or
The repetition of the element passively changed, which renders, to be calculated, and realizes the purpose only waited when needed and carry out rendering calculating, has and effectively mention
High analyte efficiency and the good effect for saving electricity consumption.
Detailed description of the invention
Fig. 1 is the main flow control figure of present invention rendering thread；
Fig. 2 is branch's process control chart under present invention generation multiple view switching state；
Fig. 3 is branch's process control chart under present invention execution user's operation state.
Specific embodiment
Hereinafter, a specific embodiment of the invention is further described in conjunction with attached drawing.
A kind of view rendering system provided by the present invention, including the first element buffer cell and second element buffering list
Member, lasting rendering of the first element buffer cell for the element of the lasting variation of view；Second element buffer cell is for regarding
The rendering of figure constant or the element passively changed.
The present invention also provides a kind of spectrum analyzers based on above-mentioned view rendering system, wherein the first element buffering
Lasting rendering of the unit for the element of the lasting variation of view in frequency sweep analytic process, such as: signal curve, frequency marking etc..The
Rendering of the Was Used buffer cell for view constant in frequency sweep analytic process or the element passively changed, and by it is constant or by
The rendering of the element of dynamic variation is detached from rendering thread, only when element changes, is buffered in second element
Independent rendering is carried out in unit, such as: background grid etc..
View rendering system further includes Data Synthesis display unit, and Data Synthesis display unit is respectively used to synthesize and show
In first element buffer cell in the element, second element buffer cell of the lasting variation of view view constant or passive variation
Element rendered picture.Data Synthesis display unit further includes display layer setup module, and display layer setup module is used for first
Element buffer cell, second element buffer cell display layer background colour setting.Wherein, the first element buffer cell is corresponding with
Upper layer display layer, second element buffer cell is corresponding with lower layer's display layer, and the background colour of upper layer display layer is set as Transparent color；
The background colour of lower layer's display layer is set as black.The element that persistently changes, constant or passive variation element are through the invention
Rendering system analysis treated rendered picture, independently of one another rendering the first element buffer cell upper layer display layer, second
Lower layer's display layer of element buffer cell.
Specifically, in the spectrum analyzer based on above-mentioned view rendering system, pass through the QT window in spectroscopy software
Body application program defines two independent QPixmap objects, as backstage double-layer bumper area the first element buffer cell, the
Was Used buffer cell, rendering thread continue to the first element buffer cell the rendering of variation element, the first element buffering
The upper layer display layer of the corresponding display equipment of unit, and the background colour of upper layer display layer is set as Transparent color, second element buffering is single
First rendering for carrying out constant or passive variation element, lower layer's display layer of the corresponding display equipment of second element buffer cell, and under
The background colour of layer display layer is set as black, the display of the first element buffer cell and the rendering result of second element buffer cell
Process successively persistently copies in display equipment by the asynchronous triggering of rendering thread, and from lower layer's display layer to upper layer display layer.This
It is corresponding would not to block second element buffer cell for the background of the corresponding upper layer display layer Transparent color of sample the first element buffer cell
Lower layer's display layer black background figure layer, be advantageously implemented complete view rendering to realize and show.In addition, due to
Was Used buffer cell is not to continue rendering, thus shortens spectroscopy software single render time and reduces battery consumption
Electricity improves the overall performance of hand-held spectrum analyzer, meanwhile, the first element buffer cell, second element buffer cell
Rendering and display layer the equal independent control of size scaling, make analyze software meet more rendering demands, improve the spirit of rendering
Adaptability living.
The present invention also provides a kind of view rendering method, control flow chart as shown in Figs. 1-3 specifically includes following control
Process processed:
Render the Type division of element:
The element persistently changed forms set D, and element therein is identified with Di, i=0, and 1,2 ... N, N are in set D
Element sum to be rendered；
Element that is constant or passively changing forms set S, and element therein is identified with Si, and i=0,1,2 ... M, M are
Element sum to be rendered in set S；
Object is predefined:
For element Di in set D, the internal privately owned rendering function DynPriRenderFunc_i () of definition, for rendering
Element Di is rendered to the first element buffer cell by the intrinsic call of thread；
For elements Si in set S, the internal privately owned rendering function StaPriRenderFunc_i () of definition is used for view ruler
Very little intrinsic call when changing；The external publicly-owned rendering function StaPubRenderFunc_i () of definition, for constant or passive
The external call when state of the element of variation changes, wherein intrinsic call and external call are upper independent in control, elements Si wash with watercolours
It contaminates to second element buffer cell；
First element buffer cell is defined as gUpperBufMap, as upper layer buffer area；
Second element buffer cell is defined as gLowerBufMap, as lower layer buffer area；
Further include overload function: Repaint () function, paintEvent () function, resizeEvent () function,
In, Repaint () function is for triggering paint event；PaintEvent () function is used for asynchronous response paint event；
ResizeEvent () function is for responding resize event；
Execute the double-deck double buffering rendering control, comprising the following steps:
Step 1.11: spectroscopy software starting rendering thread, in frequency sweep analytic process, to the first element buffer cell
Lasting rendering and asynchronous triggering paint event；
Step 1.12: the first element buffer cell background colour being set to Transparent color, covers the picture of last time rendering, while right
Drawing tool Obj State used resets, and is ready for rendering currentElement set D；
Step 1.13: to the element in set D, function DynPriRenderFunc_i () is rendered by calling, by element
Di is successively rendered in the first element buffer cell；Wherein, rendering function DynPriRenderFunc_i () is when calling, only
Element rendering in set D is calculated, element data is subjected to coordinate system Mapping and Converting and shape renders, is completed in the background entire
The rendering of dynamic element set calculates；
Step 1.14: calling Repaint () function, trigger paint event, rendering thread is held from step 1.11 circulation again
Row, meanwhile, execute step 1.41；
Step 1.21: when multiple view switching occurs, view resize event is triggered, causes entire view content invalid,
ResizeEvent () function responds resize event, and according to view dimensions and characteristic of elements to the first element buffer cell,
Second element buffer cell carries out independent size scaling；
Step 1.22: second element buffer cell background colour being set to black, covers current picture state, while to institute
It is resetted with drawing tool Obj State, is ready to update element set S；
Step 1.23: to the element in set S, rendering function StaPriRenderFunc_i () by calling, wherein i=
Elements Si is successively rendered in second element buffer cell, and executes step 1.41 by 0,1,2 ... M, by updated second yuan
The rendering result of plain buffer cell is copied in display equipment；Wherein, rendering function StaPriRenderFunc_i () is being called
When, only element rendering in set S is calculated, after the completion of resize event response, terminates the rendering to element set S；
Step 1.31: when the state of element that is constant or passively changing is set, user executes concrete operations, changes set
Second element buffer cell corresponding part background colour is set to black, the second element before covering change by the state of elements Si in S
The content that buffer cell display layer is shown, while drawing tool Obj State used is resetted, it is ready to update elements Si；
Step 1.32: for elements Si, function StaPubRenderFunc_i () is rendered by calling, wherein i=J~K,
Elements Si is successively rendered in second element buffer cell, and executes step 1.41 by J >=0, K≤M, by updated
The rendering result of Was Used buffer cell is copied in display equipment；Wherein, rendering function StaPubRenderFunc_i () exists
When calling, only element rendering in set S is calculated, after having responded user's operation, terminates the rendering to element set S；
Step 1.41:paintEvent () function asynchronous response paint event is detached from rendering thread and executes, by first yuan
The rendering result of plain buffer cell and second element buffer cell successively copies in display equipment, realizes element set D and member
The complete display of plain set S.
By the element of spectroscopy software view rendering, persistently whether by, variation divides the present invention, is divided at least two classes,
One kind is the element of the lasting variation of view, another kind of for element that is constant or passively changing.Specifically, a kind of for lasting variation
Element, formed set D；One kind is element that is constant or passively changing, forms set S.Define the first of the double-deck double buffering
Element buffer cell, second element buffer cell, in rendering thread to the element in set D in the first element buffer cell
Lasting rendering detaches the rendering of element in set S from rendering in thread, just think when element changes in set S
It is independently rendered in second element buffer cell.The invention avoids being rendered to constant or passive element lasting repetition, effectively drop
Low consumption of resources and single rendering are time-consuming, improve the analysis efficiency of hand-held spectrum analyzer and reduce battery power consumption, simultaneously
There is better flexibility to the rendering of view elements.
In certain model hand-held superhet frequency sweep spectrum analyzer project, continuous scanning mode is run, originally by application
Invention, it is opposite that all elements in view are persistently rendered using single layer double buffering mode, effectively counterweight can not only be avoided to recover
The lasting rendering of element, and be obviously improved in terms of resource utilization, analysis performance and rendering.
In the present embodiment, the system resource configuration tested is as follows:
Operating system: Ubuntu 14.04.2 64
Central processing unit: Intel (R) Core (TM) i5-6500CPU@3.20GHz
Memory: 2GB
Caching: 6144kB
Qmake:Qt5.9.2
Compiler: gcc, g++64bit
Spectroscopy software operates under the continuous frequency sweep mode of single-view, and view shows maximum holding, minimum holding simultaneously
And normal 3 data curve, after the present invention, the representative value that is reduced in terms of central processing unit resource utilization are as follows: 3%,
The time-consuming representative value reduced of single rendering are as follows: 60%.When change in size occurs for waterfall view, the element in view is by non-etc.
Ratio zooms in and out, for being used to show the Waterfall plot of frequency spectrum situation in a period of time, by double-layer bumper area, i.e., first yuan
Plain buffer cell, the independent scaling processing of second element buffer cell, can rapidly and accurately realization view conversion, embody
Good flexibility.
As seen from the above-described embodiment, application of the invention, is not only effectively reduced resource utilization and single rendering is time-consuming, also
It can be improved the analysis efficiency of hand-held spectrum analyzer and reduce power consumption, overall performance is improved, in addition, to view elements
Rendering has better flexibility.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.
Claims (11)
1. a kind of view rendering system characterized by comprising
First element buffer cell, the lasting rendering of the element of the lasting variation for view；
Second element buffer cell, the rendering of the element for the constant of view or passively changed.
2. view rendering system according to claim 1, it is further characterized in that, the view rendering system further includes data
Display unit is synthesized, Data Synthesis display unit is for synthesizing and showing the lasting variation of view in the first element buffer cell
The rendered picture of view constant or the element passively changed in element or second element buffer cell.
3. view rendering system according to claim 2, it is further characterized in that, the Data Synthesis display unit also wraps
Display layer setup module is included, the display layer setup module is single for the first element buffer cell, second element buffering to be arranged
The display layer background colour of member.
4. view rendering system according to claim 3, it is further characterized in that, the corresponding display of the first element buffer cell is set
Standby upper layer display layer, lower layer's display layer of the corresponding display equipment of second element buffer cell, wherein the background of upper layer display layer
Color is set as Transparent color；The background colour of lower layer's display layer is set as black.
5. a kind of spectrum analyzer, which is characterized in that including view rendering system described in any one of claim 1-4.
6. a kind of view rendering method characterized by comprising
The Type division for rendering element is divided at least two classes, and one kind is the element of the lasting variation of view, and another kind of is constant
Or the element passively changed；
Independent rendering is carried out to the element of lasting variation, constant or passive variation element.
7. view rendering method according to claim 6, it is further characterized in that,
The element persistently changed forms set D, and element therein is identified with Di, i=0, and 1,2 ... N, N are in set D to wash with watercolours
Contaminate element sum；
Element that is constant or passively changing forms set S, and element therein is identified with Si, i=0, and 1,2 ... M, M are set S
In element to be rendered sum.
8. view rendering method according to claim 6 or 7, it is further characterized in that, the element wash with watercolours that view is persistently changed
It is single that dye renders to second element buffering into the corresponding display layer of the first element buffer cell, to element that is constant or passively changing
In the corresponding display layer of member.
9. view rendering method according to claim 8, it is further characterized in that, when multiple view switching occurs, according to view
Size and characteristic of elements carry out independent size scaling to the first element buffer cell, second element buffer cell, and to used
Drawing tool Obj State resets.
10. view rendering method according to claim 8, it is further characterized in that, the constant or shape of element that passively changes
State can be set, the second element buffer cell display layer after the state for changing constant or passive variation element, before covering change
The content of display, then the element that is constant or passively changing after change is rendered into the corresponding display layer of second element buffer cell
In.
11. the view rendering method according to any one of claim 8, it is further characterized in that, the first element buffering is single
Member, the rendering result of second element buffer cell successively persistently copy to display equipment from lower layer's display layer to upper layer display layer
On.
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| CN113568688A (en) * | 2020-04-29 | 2021-10-29 | RealMe重庆移动通信有限公司 | View switching method and device, electronic equipment and storage medium |
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