CN112799583A - Point location schematic drawing system based on android platform - Google Patents

Point location schematic drawing system based on android platform Download PDF

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Publication number
CN112799583A
CN112799583A CN202110391615.1A CN202110391615A CN112799583A CN 112799583 A CN112799583 A CN 112799583A CN 202110391615 A CN202110391615 A CN 202110391615A CN 112799583 A CN112799583 A CN 112799583A
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Prior art keywords
graph
layer
point location
schematic diagram
location schematic
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CN202110391615.1A
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CN112799583B (en
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金震
王兆君
孙书杰
杨晗
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Beijing SunwayWorld Science and Technology Co Ltd
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Beijing SunwayWorld Science and Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text

Abstract

The invention discloses a point location schematic drawing system based on an android platform, which comprises: the engine module is used for constructing a technical framework and providing a technical engine for the point location schematic drawing system; the determining module is connected with the engine module and used for determining an entrance for drawing the entry point schematic diagram based on the using mode of a user; the acquisition module is connected with the determination module and used for acquiring a gesture touch event of a user after the determination module determines an entrance drawn by the entry point schematic diagram; the drawing module is connected with the acquisition module and used for drawing the point location schematic diagram according to the gesture touch event; and the storage module is connected with the drawing module and used for outputting the drawn point location schematic diagram and converting the point location schematic diagram into files with various formats for storage after the point location schematic diagram is drawn, so that the point location schematic diagram is more convenient to draw, and the user experience is improved.

Description

Point location schematic drawing system based on android platform
Technical Field
The invention relates to the technical field of graph drawing, in particular to a point location schematic drawing system based on an android platform.
Background
Currently, in the wave of the information era, all industries have widely applied information technology, certainly the detection industry is no exception, and in the detection field, a detection mechanism usually needs to send a professional sampling person to go to a sampling point to sample the environment and needs to describe information of the sampling point, such as the direction, the wind direction, the distribution and the like. In a traditional sampling task, a sampling person manually draws a schematic diagram on paper, but under the condition that a terrain environment is complex and changeable, the manually drawn schematic diagram is inevitably inconvenient and accurate, once drawing is wrong, the drawn content on the paper needs to be painted or redrawn, and the manually drawn schematic diagram is unreliable, so that an electronic drawing tool is very important.
With the rapid development of electronic technology, at present, samplers can move and work at any place only by carrying a very portable mobile device such as a tablet or a mobile phone, but no effective solution is available for application scenes needing drawing, because professional drawing tools on the market are basically concentrated on a PC (personal computer) end and limited by the screen size and the operation mode on the mobile device, the mobile device is difficult to have operation experience consistent with that of the PC end, and some existing drawing tools on the mobile end are only concentrated on non-industrial scenes such as drawing, painting, doodling, sketch and the like, and cannot draw or conveniently draw graphic elements such as second-order Bessel curves, parallel lines, broken line arrows, concentric circles, wind directions and the like in industrial scenes; the previously drawn content cannot be readjusted in the drawing process; most importantly, the concept of source files and multiple layers is not available, which is almost impossible to realize for the requirement of opening editing adjustment again after temporary saving.
Specifically, the following technical problems exist in the prior art: (1) no concept of source file; the drawn content is directly output as a picture at one time, which directly influences the requirement of temporary storage and subsequent repeated adjustment. (2) And the concept of multiple layers is not provided. Because the screen size of the mobile device is small, and most of the content is drawn by fingers, once the drawn content is too much, the drawn content needs to be adjusted, such as color modification, size dragging and the like, so that the correct graphic element is difficult to select by clicking with the fingers, other graphic elements are easy to touch by mistake, and the requirement of repeated adjustment is indirectly influenced. (3) No copy function; the method is very useful when a plurality of same graphs need to be drawn, and the same graphs cannot be drawn quickly;
(4) graphical elements are not abundant enough; the point location schematic diagram often needs to be drawn by using some fixed graphs, such as concentric circles, parallel lines, Bezier curves and the like, but the current mobile-end drawing tool does not provide the special graphs. (5) The uniformity of the graphic elements often requires drawing a plurality of the same graphic elements as the representation of the same type of elements in the drawing process, but due to the fact that no proper size control mechanism exists, the drawn elements are easily inconsistent in size, and the attractiveness and the specialty of the schematic diagram are affected. (6) No auxiliary line; in the drawing process, drawn elements are not arranged in a different mode due to the absence of grid auxiliary lines, and meanwhile, the touch position cannot be accurately known when the gesture dragging is caused by the absence of control point auxiliary lines.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, the invention aims to provide a point location schematic diagram drawing system based on an android platform, so that the point location schematic diagram is drawn more conveniently and the user experience is improved.
In order to achieve the above object, an embodiment of the present invention provides a point location schematic drawing system based on an android platform, including:
the engine module is used for constructing a technical framework and providing a technical engine for the point location schematic drawing system;
the determining module is connected with the engine module and used for determining an entrance for drawing the entry point schematic diagram based on the using mode of a user;
the acquisition module is connected with the determination module and used for acquiring a gesture touch event of a user after the determination module determines an entrance drawn by the entry point schematic diagram;
the drawing module is connected with the acquisition module and used for drawing the point location schematic diagram according to the gesture touch event;
and the storage module is connected with the drawing module and used for outputting the drawn point location schematic diagram and converting the point location schematic diagram into files with various formats for storage after the point location schematic diagram is drawn.
According to some embodiments of the invention, the engine module comprises:
the layer design submodule is used for designing a layer based on the SurfaceView, and the layer has functions including an independent drawing thread, a graph list and a gesture touch event distribution mechanism; taking the layer as png picture with Alpha channel, and designing a multi-layer based on SurfaceView superposition;
the graphic element design submodule is used for acquiring drawing characteristics of different graphs and graph types in practical application, and designing a base class UnitDraw based on a two-point coordinate control graph according to the drawing characteristics and the graph types;
the drawing option design submodule is used for designing public options and private options to enrich drawing effects;
a gesture touch event response and distribution design submodule for:
designing a top-down response logic based on a gesture touch event under the multi-layer superposition display;
storing a plurality of graphs into an ordered list in a superposition state of a plurality of graphs on the same layer, sequentially transmitting gesture touch events into the graph list in a reverse order mode after the gesture touch events are received by the layer, and controlling the gesture touch events to interrupt transmission after any graph in the graph list responds to the corresponding gesture touch event;
the source file storage and loading design submodule is used for carrying out formatting description on layers, images and drawing options as source files and storing the source files in a json format to a local file system; when the source file is loaded, the file content is converted into json, and the required drawing object is gradually expanded and created by the program.
According to some embodiments of the present invention, the graphic element design submodule is further configured to extend the base class UnitDraw to obtain 4 high-level base classes, including:
UnitRecDraw: the method comprises the following steps of obtaining common graphs controlled by coordinates of two points, wherein the graphs comprise rectangles, circles, isosceles triangles and characters;
UnitTrinityDraw: adding an additional third control point on the basis of the UnitDraw base class to serve as a parallel line or a second-order Bezier curve or broken line;
UnitPathDraw: acquiring a graph with an expanded path type, wherein the graph comprises a painting brush;
UnitConstraint8 Draw: the method is used for adding angle constraint control on the basis of the UnitDraw base class, and drawing a wind direction or direction graph conveniently.
According to some embodiments of the invention, the public options are: the rectangle is compared with the circle, and the rectangle comprises drawing thickness, drawing color, filling color and a ratio of 1: 1; the rectangle is compared with the characters and comprises a drawing color and a filling color;
the private options are: the text has text content and vertical direction or graphics including display, hiding, default values.
According to some embodiments of the invention, the user mode of use comprises:
the first method is as follows: a user creates a blank schematic diagram, a diagram layer is generated by default based on a point location schematic diagram drawing system, and the default option setting of the diagram is selected and modified according to a user instruction, so that drawing is conveniently performed on the blank diagram layer;
the second method comprises the following steps: a user selects a sampling point template graph as a base graph, meanwhile, a point location schematic drawing system generates a default graph layer above the base graph, and the default option setting of the graph is selected and modified according to the user instruction, so that drawing on a blank graph layer is facilitated;
the third method comprises the following steps: and selecting the source file stored by the user, and generating and displaying the point location schematic drawing system according to the sequence of the layers, the graphs and the drawing options in the source file, so that drawing can be conveniently performed on the top layer of the layers included in the source file.
According to some embodiments of the invention, further comprising:
and the layer manager is used for switching the active state of the layer, and the layer in the active state can respond and distribute the gesture touch event to the graphic element.
According to some embodiments of the invention, the rendering module comprises:
the display submodule is used for displaying the control point auxiliary line and the rectangular range auxiliary line on the drawing graph or the selected graph; the rectangular range auxiliary line represents a click area range when the graph is moved; the control point auxiliary lines are positioned at two vertexes on the diagonal line of the rectangular auxiliary line and used for representing the area range which can be clicked by adjusting the size of the graph;
the calculation submodule is used for automatically calculating the tolerance range of the gesture touch event when the drawn graph is too small and the graph adjustment needs to be selected again, and if the rectangular range is lower than the minimum threshold value of touch, the preset error range is expanded from the central point of the rectangular range to the upper direction, the lower direction, the left direction and the right direction;
the graph copying submodule is used for pausing the drawing thread of the graph layer, adding a new graph to the graph list of the current graph layer, assigning all attributes of the copied graph to the new graph, setting the new graph as the currently selected graph, then restoring the drawing thread of the graph layer, and then moving or changing the attributes of the new graph;
the image deleting submodule is used for deleting the selected graphics from the graphics list of the current layer, or performing backspacing processing, and performing reverse removal according to the adding sequence of all the graphics in the current layer;
and the attribute adjusting submodule is used for adjusting the thickness, the color and the distance of the grid lines in the drawing process.
According to some embodiments of the invention, the store and load design of source file submodule comprises:
the storage unit is used for collecting attribute information of all layers added in the current drawing work to perform structured conversion when a source file is stored, then performing structured conversion on the attribute information of all the graphs in each layer, finally performing structured conversion on all options in each graph, and finally organizing the converted layer information, graph information and drawing options into json data to be stored in a local file system;
the loading unit is used for extracting and converting json data in the source file after the source file is selected to be loaded, traversing each layer node in the json data, creating an object for each layer node and initializing the layer by using a graph and a drawing option carried by each layer node, adding the layer to a view of an android interface for display after the layer is created, starting a drawing thread of the layer, drawing all the graphs of the layer once, enabling the thread to enter a dormant mode, and then starting to add the next layer node.
According to some embodiments of the invention, in the drawing process, a distribution process is performed on the gesture touch event; the gesture touch event comprises three actions of pressing, moving and lifting; the gesture touch events to which the images on the layers can respond include: a move graphic position event, a change graphic size event, and an event of changing the direction, vertical distance, curvature of the graphic through a third control point.
In one embodiment, the method further comprises:
the parameter marking module is connected with the drawing module and used for identifying the drawn point location schematic diagram based on a pre-trained figure contour recognition model, calculating a recognition error of an actual edge point in the point location schematic diagram, determining the edge point with the recognition error smaller than a preset recognition error as a target edge point of the point location schematic diagram, and connecting the target edge points to generate a contour line of the point location schematic diagram; acquiring parameter information of the point location schematic diagram according to the contour line and marking the parameter information;
calculating the identification error of the actual edge point in the alignment diagram, which comprises the following steps:
calculating the recognition error rate of the figure outline recognition model to the actual edge points in the alignment schematic diagram
Wherein the content of the first and second substances,identifying the number of actual edge points in the alignment schematic diagram for the figure outline identification model;the number of the edge points is mistakenly detected as the number of the unreal edge points in the alignment schematic diagram by the pattern contour recognition model;the number of actual edge points in the alignment schematic diagram which are falsely detected as non-edge points by the pattern contour recognition model;identification of the alignment scheme for the pattern contour recognition modelPixel values of the actual edge points;the average pixel value of all actual edge points in the point location diagram is shown;
identifying error rate of actual edge points in point location schematic diagram according to graph contour identification modelCalculating the recognition error of the actual edge point in the alignment diagram
Wherein the content of the first and second substances,the actual number of the actual edge points in the point location schematic diagram is shown;is the first of point location schematicActual edge points;is the first in the point diagramThe distance value between each actual edge point and the preset coordinate origin.
Has the advantages that:
(1) the source file and the multiple layers are designed, so that the drawing work is flexible and adjustable;
(2) the asynchronous thread drawing and the design of only one active layer simultaneously enable the system performance to be excellent;
(3) the functions of copying, deleting, returning and the like enable the drawing process to be faster and more convenient;
(4) the design of the auxiliary line and the tolerance calculation improves the operation usability;
(5) the drawing difficulty is simplified by abundant customized graphic elements;
(6) and the drawing effect is enriched by a plurality of groups of drawing options.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a point location schematic drawing system based on an android platform according to an embodiment of the present invention;
fig. 2 is a drawing flow chart of a point location schematic drawing system based on an android platform according to an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the present invention provides a point location schematic drawing system based on an android platform, including:
the engine module is used for constructing a technical framework and providing a technical engine for the point location schematic drawing system;
the determining module is connected with the engine module and used for determining an entrance for drawing the entry point schematic diagram based on the using mode of a user;
the acquisition module is connected with the determination module and used for acquiring a gesture touch event of a user after the determination module determines an entrance drawn by the entry point schematic diagram;
the drawing module is connected with the acquisition module and used for drawing the point location schematic diagram according to the gesture touch event;
and the storage module is connected with the drawing module and used for outputting the drawn point location schematic diagram and converting the point location schematic diagram into files with various formats for storage after the point location schematic diagram is drawn.
The working principle of the technical scheme is as follows: and providing a technical engine for the point location schematic drawing system based on an engine module, and ensuring the healthy and safe operation of the point location schematic drawing system. The point location schematic diagram can be conveniently drawn on the mobile equipment based on android platform development, and an entrance for entering the point location schematic diagram drawing is determined by a determination module based on a user using mode in combination with a service scene sampled by a detection mechanism on site; the acquisition module acquires a gesture touch event of a user; the drawing module draws a point location schematic diagram according to the gesture touch event; and after the point location schematic diagram is drawn, the storage module outputs the drawn point location schematic diagram and converts the point location schematic diagram into files with various formats for storage.
The beneficial effects of the above technical scheme are that: and the source file storage function is supported. When saving, the picture, the output source file or all the output can be selected. When the source file is saved, all layers and information such as size, position, stroke, filling and the like of the graph on the layers are saved. The source file can be opened and continuously edited and adjusted when the point location schematic diagram is used next time, so that the drawing work is flexible and adjustable, the point location schematic diagram is drawn based on the gesture touch event, the drawing work is more accurate and quicker, and the user experience is improved.
According to some embodiments of the invention, the engine module comprises:
the layer design submodule is used for designing a layer based on the SurfaceView, and the layer has functions including an independent drawing thread, a graph list and a gesture touch event distribution mechanism; taking the layer as png picture with Alpha channel, and designing a multi-layer based on SurfaceView superposition;
the graphic element design submodule is used for acquiring drawing characteristics of different graphs and graph types in practical application, and designing a base class UnitDraw based on a two-point coordinate control graph according to the drawing characteristics and the graph types;
the drawing option design submodule is used for designing public options and private options to enrich drawing effects;
a gesture touch event response and distribution design submodule for:
designing a top-down response logic based on a gesture touch event under the multi-layer superposition display;
storing a plurality of graphs into an ordered list in a superposition state of a plurality of graphs on the same layer, sequentially transmitting gesture touch events into the graph list in a reverse order mode after the gesture touch events are received by the layer, and controlling the gesture touch events to interrupt transmission after any graph in the graph list responds to the corresponding gesture touch event;
the source file storage and loading design submodule is used for carrying out formatting description on layers, images and drawing options as source files and storing the source files in a json format to a local file system; when the source file is loaded, the file content is converted into json, and the required drawing object is gradually expanded and created by the program.
The working principle and the beneficial effects of the technical scheme are as follows: the layer design submodule is used for designing a layer based on the surfaceView, the layer also has an independent drawing thread, a group of graphic lists and a set of perfect touch event distribution mechanism, and the gesture touch event is ensured not to be simultaneously responded by a plurality of layers or graphics. According to the principle of transparency superposition of a picture with a transparency Alpha channel (such as png format), the picture layer can be regarded as a png picture with the Alpha channel, the graph drawn on the picture layer is finally displayed according to the principle of transparency superposition, on the other hand, in an android knowledge system, a SurfaceView component provides an independent drawing surface, can be executed in an independent thread, does not occupy main thread resources, can be used as a main object for drawing, and obtains a multi-picture layer implementation scheme based on SurfaceView superposition. The graphic element design submodule combines drawing characteristics of different graphs and graph types in practical application, for example, coordinates of two points can determine most graphs such as rectangles, circles/ellipses, characters, concentric circles, rhombuses and the like; the parallel lines, the second-order Bezier curve, the two-section broken lines and the like can be determined by the three-point coordinates. And the drawing option design submodule is used for designing public options and private options so as to enrich the drawing effect. Drawing options are used as important parts for enriching drawing effects, public options and private options are designed, and for example, rectangles and circles have drawing thickness, drawing color, filling color, 1:1 proportion and the like; rectangles have a stroke color, fill color, etc. as compared to characters, but characters have private options such as text content and vertical orientation. Different graphs can freely inherit the options and set the options of display, hiding and default values, and meanwhile, some special graphs can also add some additional options. The gesture touch event response and distribution design submodule is realized in a top-down sequence, firstly, under the condition of multi-layer superposition display, an android system naturally supports the top-down response sequence, all graphs need to be stored in an ordered list under the condition of superposition of a plurality of graphs on the same layer, all drawing elements are held in the layer, so after the layer receives the gesture touch events, the gesture touch events are sequentially transmitted into the graph list in a reverse sequence mode, and after any graph responds to the events, the gesture touch events are interrupted to be transmitted, so that the function of randomly selecting and adjusting the graph elements in the layer is realized. The source file is packaged based on a json format which is easy to read, the storage and loading design submodule of the source file stores the layer, the graph and the drawing option into a local file system in the json format through formatting description, and when the source file is loaded again, the file content is converted into json which is gradually expanded by a program and a required drawing object is created.
According to some embodiments of the present invention, the graphic element design submodule is further configured to extend the base class UnitDraw to obtain 4 high-level base classes, including:
UnitRecDraw: the method comprises the following steps of obtaining common graphs controlled by coordinates of two points, wherein the graphs comprise rectangles, circles, isosceles triangles and characters;
UnitTrinityDraw: adding an additional third control point on the basis of the UnitDraw base class to serve as a parallel line or a second-order Bezier curve or broken line;
UnitPathDraw: acquiring a graph with an expanded path type, wherein the graph comprises a painting brush;
UnitConstraint8 Draw: the method is used for adding angle constraint control on the basis of the UnitDraw base class, and drawing a wind direction or direction graph conveniently.
By the technical scheme, the richness of the graphic elements and the uniformity of the graphic elements are realized, so that a plurality of same graphic elements which are used as the expression of the same type of elements have a proper size control mechanism in the drawing process, the attractiveness and the specialty of the point position schematic diagram are ensured, meanwhile, the patterns such as wind directions or directions can be drawn, and the user experience is improved.
The inheritance mechanism of the graph, in which the UnitDraw is used as an original base class of the general graph, describes basic information of the general graph, and comprises attributes such as a starting point coordinate, an end point coordinate, a drawing option, a painting brush, a rectangular range auxiliary line, a control point auxiliary line and the like, a general method for copying self attributes, a method for refreshing the painting brush, a method for defining structured conversion, a method for initializing data from a source file and the like. The UnitDraw itself is not used as a direct inheritance class of the graph, but 4 high-level base classes are derived from the UnitDraw again, the 4 base classes extract the characteristics of the graph and encapsulate the general processing flow of the same type of graph, and each drawing graph element is inherited from the 4 base classes, so that new graph elements can be conveniently expanded.
According to some embodiments of the invention, the public options are: the rectangle is compared with the circle, and the rectangle comprises drawing thickness, drawing color, filling color and a ratio of 1: 1; the rectangle is compared with the characters and comprises a drawing color and a filling color;
the private options are: the text has text content and vertical direction or graphics including display, hiding, default values.
According to some embodiments of the invention, as shown in fig. 2, the usage pattern of the user includes:
the first method is as follows: a user creates a blank schematic diagram, a diagram layer is generated by default based on a point location schematic diagram drawing system, and the default option setting of the diagram is selected and modified according to a user instruction, so that drawing is conveniently performed on the blank diagram layer;
the second method comprises the following steps: a user selects a sampling point template graph as a base graph, meanwhile, a point location schematic drawing system generates a default graph layer above the base graph, and the default option setting of the graph is selected and modified according to the user instruction, so that drawing on a blank graph layer is facilitated;
the third method comprises the following steps: and selecting the source file stored by the user, and generating and displaying the point location schematic drawing system according to the sequence of the layers, the graphs and the drawing options in the source file, so that drawing can be conveniently performed on the top layer of the layers included in the source file.
According to some embodiments of the invention, further comprising:
and the layer manager is used for switching the active state of the layer, and the layer in the active state can respond and distribute the gesture touch event to the graphic element.
The three using modes are used as inlets of the point location schematic diagram function, the following operations are kept consistent, a sampler can add more layers as required, the active state of the layers can be switched in the layer manager, the layers in the active state can respond and distribute gesture events to graphic elements, and further the functions of moving the graphic position, changing the graphic size, adjusting graphic options and the like are achieved; a sampler can use functions of retreating, copying, deleting and the like to assist in drawing a point location schematic diagram of the express; after the drawing work of the sampler is finished, the sampler clicks the saving button, the saving type is selected on the saving interface, only pictures can be output, only source files can be output, the output source files can be output simultaneously, and the output source files can be selected and opened for continuous adjustment in the next drawing work.
According to some embodiments of the invention, the rendering module comprises:
the display submodule is used for displaying the control point auxiliary line and the rectangular range auxiliary line on the drawing graph or the selected graph; the rectangular range auxiliary line represents a click area range when the graph is moved; the control point auxiliary lines are positioned at two vertexes on the diagonal line of the rectangular auxiliary line and used for representing the area range which can be clicked by adjusting the size of the graph;
the calculation submodule is used for automatically calculating the tolerance range of the gesture touch event when the drawn graph is too small and the graph adjustment needs to be selected again, and if the rectangular range is lower than the minimum threshold value of touch, the preset error range is expanded from the central point of the rectangular range to the upper direction, the lower direction, the left direction and the right direction;
the graph copying submodule is used for pausing the drawing thread of the graph layer, adding a new graph to the graph list of the current graph layer, assigning all attributes of the copied graph to the new graph, setting the new graph as the currently selected graph, then restoring the drawing thread of the graph layer, and then moving or changing the attributes of the new graph;
the image deleting submodule is used for deleting the selected graphics from the graphics list of the current layer, or performing backspacing processing, and performing reverse removal according to the adding sequence of all the graphics in the current layer;
and the attribute adjusting submodule is used for adjusting the thickness, the color and the distance of the grid lines in the drawing process.
The working principle and the beneficial effects of the technical scheme are as follows: a user can add a new layer in the drawing process, the new layer is in an active state by default, meanwhile, other layers enter a sleep mode, and only one active layer is reserved in the system; clicking a layer management button, and switching active layers in a popped layer list; and the display submodule is used for displaying the control point auxiliary line and the rectangular range auxiliary line on the drawing graph or the selected graph. The rectangular range auxiliary line represents the range of a click area when the graph is moved, and a touch event in the range can trigger the moving effect of the graph; the control point auxiliary lines are positioned at two vertexes on the diagonal line of the rectangular auxiliary line and are used for representing the area range which can be clicked by adjusting the size of the graph, and the touch event in the area range can trigger the effect of changing the size of the graph. Note: part of the graph has a third control point, and the range of the third control point is consistent with that of other two points and is generally used as a control point for factors such as direction, vertical distance, curvature and the like; and the calculation submodule is used for automatically calculating the tolerance range of the gesture touch event when the drawn graph is too small and the graph adjustment needs to be reselected, and if the rectangular range is lower than the minimum touch threshold, the preset error range is respectively expanded from the central point of the rectangular range to the upper direction, the lower direction, the left direction and the right direction, and the gesture touch event in the range can be effectively responded. And the graph copying submodule is used for adding a new graph to the graph list of the current graph layer by the drawing thread of the suspended graph layer, assigning all attributes of the copied graph to the new graph, setting the new graph as the currently selected graph, then recovering the drawing thread of the graph layer, and then executing operations such as moving or changing attributes and the like on the new graph. The image deleting submodule is used for deleting the selected graphics from the graphics list of the current layer, or performing backspacing processing, and performing reverse removal according to the adding sequence of all the graphics in the current layer; and the attribute adjusting submodule is used for adjusting the thickness, the color and the spacing of grid lines in the drawing process so as to be clearly visible under different background images.
According to some embodiments of the invention, the store and load design of source file submodule comprises:
the storage unit is used for collecting attribute information of all layers added in the current drawing work to perform structured conversion when a source file is stored, then performing structured conversion on the attribute information of all the graphs in each layer, finally performing structured conversion on all options in each graph, and finally organizing the converted layer information, graph information and drawing options into json data to be stored in a local file system;
the loading unit is used for extracting and converting json data in the source file after the source file is selected to be loaded, traversing each layer node in the json data, creating an object for each layer node and initializing the layer by using a graph and a drawing option carried by each layer node, adding the layer to a view of an android interface for display after the layer is created, starting a drawing thread of the layer, drawing all the graphs of the layer once, enabling the thread to enter a dormant mode, and then starting to add the next layer node.
According to some embodiments of the invention, in the drawing process, a distribution process is performed on the gesture touch event; the gesture touch event comprises three actions of pressing, moving and lifting; the gesture touch events to which the images on the layers can respond include: a move graphic position event, a change graphic size event, and an event of changing the direction, vertical distance, curvature of the graphic through a third control point.
In a multi-layer superposition state, the top layer preferentially receives the gesture touch events, the layers transmit the gesture touch events to all the graphs in the current layer in a reverse order mode, and after any graph responds to any gesture touch event, the transmission of the gesture touch events is completely interrupted. And if the current layer does not have any graph response gesture touch event, naturally transmitting the gesture touch event to the lower layer, and continuously responding by the lower layer according to the rule until the last layer. If the last layer still has no graphical response, the gesture touch event is discarded for invalidation. And the responding graph receives detailed information of the gesture touch event, including a pressing point coordinate, a moving point coordinate and a lifting point coordinate, so that functions of moving a position, changing the size, deforming and the like are realized.
In one embodiment, the method further comprises:
the parameter marking module is connected with the drawing module and used for identifying the drawn point location schematic diagram based on a pre-trained figure contour recognition model, calculating a recognition error of an actual edge point in the point location schematic diagram, determining the edge point with the recognition error smaller than a preset recognition error as a target edge point of the point location schematic diagram, and connecting the target edge points to generate a contour line of the point location schematic diagram; acquiring parameter information of the point location schematic diagram according to the contour line and marking the parameter information;
calculating the identification error of the actual edge point in the alignment diagram, which comprises the following steps:
calculating the recognition error rate of the figure outline recognition model to the actual edge points in the alignment schematic diagram
Wherein the content of the first and second substances,identifying the number of actual edge points in the alignment schematic diagram for the figure outline identification model;the number of the edge points is mistakenly detected as the number of the unreal edge points in the alignment schematic diagram by the pattern contour recognition model;the number of actual edge points in the alignment schematic diagram which are falsely detected as non-edge points by the pattern contour recognition model;identification of the alignment scheme for the pattern contour recognition modelPixel values of the actual edge points;the average pixel value of all actual edge points in the point location diagram is shown;
identifying error rate of actual edge points in point location schematic diagram according to graph contour identification modelCalculating the recognition error of the actual edge point in the alignment diagram
Wherein the content of the first and second substances,the actual number of the actual edge points in the point location schematic diagram is shown;is the first of point location schematicActual edge points;is the first in the point diagramThe distance value between each actual edge point and the preset coordinate origin.
The working principle and the beneficial effects of the technical scheme are as follows: identifying the drawn point location schematic diagram based on a pre-trained figure contour identification model, calculating an identification error of an actual edge point in the point location schematic diagram, determining the edge point with the identification error smaller than a preset identification error as a target edge point of the point location schematic diagram, and connecting the target edge points to generate a contour line of the point location schematic diagram; acquiring parameter information of the point location schematic diagram according to the contour line and marking the parameter information; the parameter information comprises the length and the width of the point location schematic diagram, the bending rate of a part of the schematic diagram and the like, so that a user can accurately and clearly obtain the parameter information of the point location schematic diagram, the parameter information is stored when the point location schematic diagram is stored, the accuracy of the point location schematic diagram is improved, and the point location schematic diagram is more convenient and quicker to inquire or use. And accurately identifying the target edge points of the point location schematic diagram based on the figure contour identification model, and further accurately determining the contour line of the point location schematic diagram. The smaller the recognition error rate, the higher the recognition accuracy of the edge point. The identification error represents the identification error of the graph outline identification model to the position or distance of the actual edge point in the point location schematic diagram in the identification process. The identification error of the actual edge point in the alignment schematic diagram is accurately calculated based on the identification error rate of the figure outline identification model to the actual edge point in the alignment schematic diagram, so that the accuracy of the determined target edge point is improved, the more accurate contour line is further favorably determined, and more accurate parameter information is further obtained.
The point location schematic drawing system based on the android platform provided by the invention has the following characteristics:
(1) three use modes are supported: "new blank", "base map open", and "source file open";
(2) providing 17 figures including circles, rectangles, triangles, stars, characters, curves and the like and a plurality of drawing options including stroking thickness, stroking color, filling color, proportion maintenance and the like;
(3) the size and the position of the graph are changed through dragging;
(4) and supporting the creation of a plurality of layers, and splitting the drawing graph into different layers for management. When the historical graphics need to be edited, the layer where the graphics are located can be activated to be adjusted;
(5) supporting the color and thickness adjustment of the grid auxiliary lines;
(6) the display of the auxiliary line of the control point is supported, so that a sampler can conveniently and accurately judge the control area of the graph;
(7) support (per layer) revocation/fallback functionality;
(8) the function of copying the graph is supported. When some same graphs need to be drawn, the middle graphs can be selected for quick copying, and the assisted graphs keep the same position, size, delineation, filling pattern and the like as the original graphs;
(9) the function of deleting the graph is supported;
(10) tolerance range calculations are supported. Under the condition that certain graphs are drawn too small, the gesture touch position is calculated within a certain tolerance range, and the graphs can be accurately clicked and selected;
(11) asynchronous thread drawing is supported. Drawing work is completed by the android asynchronous thread, so that the main thread is prevented from being blocked to execute and respond; in addition, under a plurality of layers, only one layer is reserved as an active layer, and drawing threads of the other layers all enter a sleep mode, so that the system memory overhead is saved, and the system blockage is avoided;
(12) and the source file storage function is supported. When saving, the picture, the output source file or all the output can be selected. When the source file is saved, all layers and information such as size, position, stroke, filling and the like of the graph on the layers are saved. The source file may be opened and continue to edit the adjustment the next time the point location graph is used.
The point location schematic drawing system based on the android platform has the beneficial effects that:
(1) the source file and the multiple layers are designed, so that the drawing work is flexible and adjustable;
(2) the asynchronous thread drawing and the design of only one active layer simultaneously enable the system performance to be excellent;
(3) the functions of copying, deleting, returning and the like enable the drawing process to be faster and more convenient;
(4) the design of the auxiliary line and the tolerance calculation improves the operation usability;
(5) the drawing difficulty is simplified by abundant customized graphic elements;
(6) and the drawing effect is enriched by a plurality of groups of drawing options.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A point location schematic drawing system based on an android platform is characterized by comprising:
the engine module is used for constructing a technical framework and providing a technical engine for the point location schematic drawing system;
the determining module is connected with the engine module and used for determining an entrance for drawing the entry point schematic diagram based on the using mode of a user;
the acquisition module is connected with the determination module and used for acquiring a gesture touch event of a user after the determination module determines an entrance drawn by the entry point schematic diagram;
the drawing module is connected with the acquisition module and used for drawing the point location schematic diagram according to the gesture touch event;
and the storage module is connected with the drawing module and used for outputting the drawn point location schematic diagram and converting the point location schematic diagram into files with various formats for storage after the point location schematic diagram is drawn.
2. The android platform-based point location schematic drawing system of claim 1, wherein the engine module comprises:
the layer design submodule is used for designing a layer based on the SurfaceView, and the layer has functions including an independent drawing thread, a graph list and a gesture touch event distribution mechanism; taking the layer as png picture with Alpha channel, and designing a multi-layer based on SurfaceView superposition;
the graphic element design submodule is used for acquiring drawing characteristics of different graphs and graph types in practical application, and designing a base class UnitDraw based on a two-point coordinate control graph according to the drawing characteristics and the graph types;
the drawing option design submodule is used for designing public options and private options to enrich drawing effects;
a gesture touch event response and distribution design submodule for:
designing a top-down response logic based on a gesture touch event under the multi-layer superposition display;
storing a plurality of graphs into an ordered list in a superposition state of a plurality of graphs on the same layer, sequentially transmitting gesture touch events into the graph list in a reverse order mode after the gesture touch events are received by the layer, and controlling the gesture touch events to interrupt transmission after any graph in the graph list responds to the corresponding gesture touch event;
the source file storage and loading design submodule is used for carrying out formatting description on layers, images and drawing options as source files and storing the source files in a json format to a local file system; when the source file is loaded, the file content is converted into json, and the required drawing object is gradually expanded and created by the program.
3. The android platform-based point location schematic drawing system of claim 2, wherein the graphic element design submodule is further configured to extend the base class UnitDraw to obtain 4 high-level base classes, and the system includes:
UnitRecDraw: the method comprises the following steps of obtaining common graphs controlled by coordinates of two points, wherein the graphs comprise rectangles, circles, isosceles triangles and characters;
UnitTrinityDraw: adding an additional third control point on the basis of the UnitDraw base class to serve as a parallel line or a second-order Bezier curve or broken line;
UnitPathDraw: acquiring a graph with an expanded path type, wherein the graph comprises a painting brush;
UnitConstraint8 Draw: the method is used for adding angle constraint control on the basis of the UnitDraw base class, and drawing a wind direction or direction graph conveniently.
4. The android platform-based point location schematic drawing system of claim 2, wherein the common options are: the rectangle is compared with the circle, and the rectangle comprises drawing thickness, drawing color, filling color and a ratio of 1: 1; the rectangle is compared with the characters and comprises a drawing color and a filling color;
the private options are: the text has text content and vertical direction or graphics including display, hiding, default values.
5. The android platform-based point location schematic drawing system of claim 1, wherein the user mode of use comprises:
the first method is as follows: a user creates a blank schematic diagram, a diagram layer is generated by default based on a point location schematic diagram drawing system, and the default option setting of the diagram is selected and modified according to a user instruction, so that drawing is conveniently performed on the blank diagram layer;
the second method comprises the following steps: a user selects a sampling point template graph as a base graph, meanwhile, a point location schematic drawing system generates a default graph layer above the base graph, and the default option setting of the graph is selected and modified according to the user instruction, so that drawing on a blank graph layer is facilitated;
the third method comprises the following steps: and selecting the source file stored by the user, and generating and displaying the point location schematic drawing system according to the sequence of the layers, the graphs and the drawing options in the source file, so that drawing can be conveniently performed on the top layer of the layers included in the source file.
6. The android platform-based point location schematic drawing system of claim 1, further comprising:
and the layer manager is used for switching the active state of the layer, and the layer in the active state can respond and distribute the gesture touch event to the graphic element.
7. The android platform-based point location schematic drawing system of claim 1, wherein the drawing module comprises:
the display submodule is used for displaying the control point auxiliary line and the rectangular range auxiliary line on the drawing graph or the selected graph; the rectangular range auxiliary line represents a click area range when the graph is moved; the control point auxiliary lines are positioned at two vertexes on the diagonal line of the rectangular auxiliary line and used for representing the area range which can be clicked by adjusting the size of the graph;
the calculation submodule is used for automatically calculating the tolerance range of the gesture touch event when the drawn graph is too small and the graph adjustment needs to be selected again, and if the rectangular range is lower than the minimum threshold value of touch, the preset error range is expanded from the central point of the rectangular range to the upper direction, the lower direction, the left direction and the right direction;
the graph copying submodule is used for pausing the drawing thread of the graph layer, adding a new graph to the graph list of the current graph layer, assigning all attributes of the copied graph to the new graph, setting the new graph as the currently selected graph, then restoring the drawing thread of the graph layer, and then moving or changing the attributes of the new graph;
the image deleting submodule is used for deleting the selected graphics from the graphics list of the current layer, or performing backspacing processing, and performing reverse removal according to the adding sequence of all the graphics in the current layer;
and the attribute adjusting submodule is used for adjusting the thickness, the color and the distance of the grid lines in the drawing process.
8. The android platform-based point location schematic drawing system of claim 2, wherein the storage and loading design submodule of the source file comprises:
the storage unit is used for collecting attribute information of all layers added in the current drawing work to perform structured conversion when a source file is stored, then performing structured conversion on the attribute information of all the graphs in each layer, finally performing structured conversion on all options in each graph, and finally organizing the converted layer information, graph information and drawing options into json data to be stored in a local file system;
the loading unit is used for extracting and converting json data in the source file after the source file is selected to be loaded, traversing each layer node in the json data, creating an object for each layer node and initializing the layer by using a graph and a drawing option carried by each layer node, adding the layer to a view of an android interface for display after the layer is created, starting a drawing thread of the layer, drawing all the graphs of the layer once, enabling the thread to enter a dormant mode, and then starting to add the next layer node.
9. The android platform-based point location schematic drawing system of claim 2, comprising a distribution process for gesture touch events during drawing; the gesture touch event comprises three actions of pressing, moving and lifting; the gesture touch events to which the images on the layers can respond include: a move graphic position event, a change graphic size event, and an event of changing the direction, vertical distance, curvature of the graphic through a third control point.
10. The android platform-based point location schematic drawing system of claim 1, further comprising:
the parameter marking module is connected with the drawing module and used for identifying the drawn point location schematic diagram based on a pre-trained figure contour recognition model, calculating a recognition error of an actual edge point in the point location schematic diagram, determining the edge point with the recognition error smaller than a preset recognition error as a target edge point of the point location schematic diagram, and connecting the target edge points to generate a contour line of the point location schematic diagram; acquiring parameter information of the point location schematic diagram according to the contour line and marking the parameter information;
calculating the identification error of the actual edge point in the alignment diagram, which comprises the following steps:
calculating the recognition error rate of the figure outline recognition model to the actual edge points in the alignment schematic diagram
Wherein the content of the first and second substances,identifying the number of actual edge points in the alignment schematic diagram for the figure outline identification model;the number of the edge points is mistakenly detected as the number of the unreal edge points in the alignment schematic diagram by the pattern contour recognition model;the number of actual edge points in the alignment schematic diagram which are falsely detected as non-edge points by the pattern contour recognition model;identification of the alignment scheme for the pattern contour recognition modelPixel values of the actual edge points;the average pixel value of all actual edge points in the point location diagram is shown;
identifying error rate of actual edge points in point location schematic diagram according to graph contour identification modelCalculating the recognition error of the actual edge point in the alignment diagram
Wherein the content of the first and second substances,the actual number of the actual edge points in the point location schematic diagram is shown;is the first of point location schematicActual edge points;is the first in the point diagramThe distance value between each actual edge point and the preset coordinate origin.
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