134results about How to "Achieve drawing" patented technology

The invention belongs to a field of the visual simulation of a flood routing. Aiming at realizing the three-dimensional dynamic whole-process simulation of the storm surge and the flood routings, the safety management of seawalls, a quick scientific assessment of the storm surge disaster, and the scientific formulation and the implementation of rescue and relief work, the technical scheme provided is the three-dimensional dynamic whole-process simulation of the storm surge and the flood routings, comprising the following steps: (1) establishing three-dimensional mathematical models of the storm surge and the flood routings in complex flooding areas; (2) drawing bathymetric charts of the storm surge and the flood submerging in complex flooding areas (3) dynamically simulating liquid phase flows of the storm surge and the flood routings in complex flooding areas; (4) carrying out the dynamics calculation of the storm surge and the flood routings in complex areas; (5) establishing virtual-real coupling models of the storm surge and the flood routings in complex areas; (6) carrying out the post processing and the visual output of the three-dimensional dynamic whole-process simulation. The method is mainly applied in the three-dimensional dynamic whole-process simulation of the storm surge and the flood.

The invention discloses a method and a device for generating a human face cartoon based on deep learning, wherein the method comprises the following steps: acquiring a personal image, and calibrating77 facial feature points; performing re-estimation and rotation operations to obtain an image of the human face with a positive standard posture; constructing a rectangular frame of the human face according to the image; zooming for three times in an equal ratio to perform cropping, and constructing a human head image block; at the same time, cropping an image corresponding to the rectangular frame of the human face, performing naturalization processing, sequentially feeding to a pre-trained human face and facial feature multi-label classification deep convolutional neural prediction network,and obtaining the gender and facial feature attribute labels of the human face; according to the images corresponding to the gender and facial feature attribute labels of the human face, the human head image block and the rectangular frame of the human face, selecting corresponding materials from a cartoon material library, performing corresponding deformation processing, and obtaining cartoon materials of the facial features, the hair and the human skin; then, performing splicing processing; finally, obtaining a cartoon image. In the embodiment of the present invention, intelligent drawing of human face cartoon can be realized, and any manual assistance is not required.

The invention provides a drawing method for an isoline containing a reverse fault, which comprises the following steps: dividing the inner and peripheral data of the polygon of a fault; carrying out triangulation to data by a space gridding algorithm to obtain a final triangulation network; and tracking the isoline for the final triangulation network. A structural map drawn with the method has the advantages of good effect and high precision, the footwall information of the reverse fault can be drawn, and the drawing problem of the structural mp containing the reverse fault can be effectivelysolved.

The invention provides an online examination system and method and is applied to curriculum examinations of electric basic subjects. A technical bottleneck problem of online examination in science and engineering curriculums, namely answer and automatic grading of subjective questions such as calculation questions, design questions and drawing questions is well solved. According to the system, the needed formulas, circuit diagrams and oscillograms in examination can be recorded or drawn, the answering process is read over according to the answering operation process and key data information recorded by the system, and scores are given. The system is suitable for the current educational development demands, accords with basic thinking of promoting educational reform by utilizing a modern information technology and has high popularization value.

The invention discloses a parametric two-dimensional drawing/three-dimensional model intelligent conversion method. The method comprises the steps that all design parameters of a plotting image are stored in a database; the design parameters, in the database, of the plotting image are extracted and cached, the design parameters are assigned to two-dimensional drawing plotting elements or three-dimensional model setup elements, drawing software is called, and a plotting image two-dimensional drawing is made or a plotting image three-dimensional model is set up according to two-dimensional drawing plotting element parameters; and the two-dimensional drawing plotting element parameters or three-dimensional model setup element parameters are cached, the cached two-dimensional drawing plottingelement parameters or three-dimensional model setup element parameters are stored into the database, and the database is updated. Through the method adopting the technical scheme, a two-dimensional drawing making module and a three-dimensional model setup module share the same design parameter database and call identical design parameters, therefore, the generated two-dimensional drawing and the three-dimensional model can correspond in design parameter and structure, drawing efficiency is effectively improved, and drawing errors are reduced.

The invention discloses a screen-based three-dimensional linear symbol rendering method, which utilizes a shader language to realize high-efficiency high-quality rendering of linear map symbols in a three-dimensional map. The method includes the steps of establishing a mapping relation between vector line segments and a terrain unit, and encoding vector nodes and indexes, thereby forming node texture and index texture; in a fragment shader, searching and reestablishing vector line segments associated with a current fragment; performing grouping and ranking on vector line segment indexes, solving texture coordinates of line segment nodes in the node texture, and reading node attributes from the node texture; and selecting corresponding rendering functions according to symbol types of the associated line segments, and arranging a calculation sequence according to priority. Through direct calculation of screen fragments, the screen-based three-dimensional linear symbol rendering method provided by the invention can realize lamination rendering of linear symbols in a terrain rendering process. In addition, precise spatial position relation calculation and flexible fragment operation meet rendering of different types of linear symbols, and ensure efficiency of real-time rendering.

The present invention provides a three-dimensional graph rendering method, apparatus and equipment and storage medium. The method comprises a step of obtaining first point coordinates, second point coordinates and third point coordinates, a step of taking the first point coordinates and the second point coordinates as center point coordinates and contour point coordinates of a bottom surface contour in a three-dimensional graph to be rendered, and combined with the relation between each specified contour point and a center point on the bottom surface contour of a preset standard three-dimensional graph, determining a first zoom ratio of the bottom surface contour of the three-dimensional graph to be rendered to the bottom surface contour of the standard three-dimensional graph, a step of drawing the bottom surface contour of the three-dimensional graph to be rendered based on the first zoom ratio, and a step of drawing the contours of other surfaces in the three-dimensional graph to be rendered according to the distances of the second point coordinates and the third point coordinates and the extension direction of the side surface contour in the standard three-dimensional graph. According to the three-dimensional graph rendering method, apparatus and equipment and the storage medium, a three-dimensional graph expected by a user can be drawn, and thus the accuracy of drawing three-dimensional graph is improved.

The invention discloses a positioning and mapping method based on millimeter wave radar and visual SLAM. The distance size of the visual SLAM track data based on the camera is corrected by using the accurate distance information of the odometer. The positioning information with low cost, high accuracy and strong robustness is obtained. The point cloud scanned by the millimeter-wave radar is registered into a world coordinate system according to the positioning information. The method achieves the drawing of the position and shape of an external obstacle, irons out the defect that a millimeter-wave radar is poor in point cloud data self-registration compared with a laser radar, fully utilizes the precise distance measurement capability of the millimeter-wave radar and the low cost, and achieves the high-quality mapping.

The invention discloses an electronic cam type comprehensive experiment table for teaching. The electronic cam type comprehensive experiment table for teaching comprises a frame, an eccentric module, a cam curve drawing module and an electronic cam movement demonstrating module, wherein the eccentric module, the cam curve drawing module and the electronic cam movement demonstrating module are fixed on the frame. A corresponding cam contour line can be drawn by the cam curve drawing module by inputting periodic cam movement curve signals to the electronic cam movement demonstrating module, and comparison between electronic cam movement and traditional cam movement is achieved. The electronic cam type comprehensive experiment table for teaching has the advantages that an electronic cam is introduced to experiment teaching for the first time, direct comparison between a traditional cam mechanism and an electronic cam mechanism movement rule can be achieved, the cam contour line can be drawn, movement simulation of different kinds of cams can be achieved by means of traditional cam replacement and eccentric adjustment, and thereby comprehension on the cam mechanism and the electronic cam can be deepened, and cam design and analysis abilities can be improved.

The invention discloses a voice drawing system and method. The method comprises the steps of: receiving a voice signal input by a user and selecting a graphic material, and figuring out quantitative numerical values of all attributes corresponding to the graphic material according to a sampling value of the voice signal of the user and then resetting the graphic material and outputting a displayed technical means. Therefore, the technical efficacy of drawing a graphic content with personal characteristics can be realized by using voice.

The invention relates to a test system suitable for testing the vehicle driving performance. The system comprises a GNSS base station, a test device and a test control machine. The GNSS base station is erected on a control point with known coordinates; the test device comprises inertial navigation equipment, a mobile terminal receiver and a radio station; the inertial navigation equipment, the mobile terminal receiver and the radio station are fixedly mounted at the top end of the vehicle body; wherein the inertial navigation equipment is fixedly connected with the mobile terminal receiver through a communication cable, the GNSS base station is in communication connection with the mobile terminal receiver through a radio station to obtain high-precision position data in real time, and thetest control machine is connected with the mobile terminal receiver in a wireless communication mode to receive the data. The test system and method suitable for testing the vehicle driving performance can realize accurate test of vehicle offset parameters and drawing of a vehicle driving track, so that the vehicle performance test system can measure vehicle position information simply and quickly.

The invention discloses an intelligent aided design system for a platform door. According to the system, all design parameters of the platform door are stored in a database; the design parameters of the platform door in the database are extracted and cached, the design parameters are assigned to a first-class drawing plotting factor or a second-class drawing building factor, plotting software is called, and a first-class drawing of the platform door is plotted according to first-class drawing plotting factor parameters, or a second-class drawing for building the platform door is plotted according to second-class drawing building factor parameters; the first-class drawing plotting factor parameters or the second-class drawing building factor parameters are cached, the cached first-class drawing plotting factor parameters or second-class drawing building factor parameters are stored to the database, and the database is updated. The technological scheme further discloses application of the intelligent aided design system. A first-class drawing plotting module and a second-class drawing building module share the same database, and the same design parameters are called so that the design parameters and the structure of the generated first-class drawing can correspond to those of the generated second-class drawing; the plotting efficiency is effectively improved, and the plotting error is reduced.

The invention discloses a webpage-based drawing and display method for a power simulation diagram. The webpage-based drawing and display method incorporates RaphaelJS for the drawing and display of the power simulation diagram, and has the advantages that no plug-in needs to be installed on a client, and the browser compatibility is higher, so that the use convenience of users is greatly improved.

The invention discloses a speed reducer operation performance test platform. The platform comprises a belt conveyor, detection boxes, protection mechanisms, an infrared thermometer, a first test mechanism, a first moving mechanism, a stepping motor and a second test mechanism. T-shaped plates are arranged on the front surface and the rear surface of the belt conveyor; supporting legs are arrangedat the bottoms of the T-shaped plates and the bottom of the belt conveyor, the two sets of detection boxes are symmetrically arranged and assembled on the T-shaped plate through sliding mechanisms, audible and visual alarms are arranged on the detection boxes, noise detectors are arranged on the inner cavity faces of the detection boxes, and the protection mechanisms are installed at inlets and outlets of the two sets of detection boxes. The speed reducer operation performance test platform can perform integrated detection, shorten the test time, reduce the number of users, improve the test efficiency, improve the accuracy of various test results and improve the safety during detection.

The invention discloses a drawing method and device based on layer superposition, terminal equipment and a storage medium. The method comprises the following steps: acquiring a background image and performing gray processing to obtain a gray background image; wherein the gray background image comprises a plurality of background patterns; through clustering processing, separating each background pattern to obtain a plurality of separated background patterns; obtaining an original image and performing gray processing to obtain a gray original image; taking any separated back pattern as a to-be-superimposed pattern, fitting the image center point of the to-be-superimposed pattern with the image center point of the gray-scale original image, and then extracting all pixel points of an overlapping region of the to-be-superimposed pattern and the gray-scale original image to obtain a to-be-drawn image; according to the gray values of the pixel points of the to-be-drawn image, determining thenumber of drawing times of the pixel points of the to-be-drawn image; and drawing the to-be-drawn image on the drawing carrier according to the drawing times of the pixel points of the to-be-drawn image. By implementing the embodiment of the invention, the display effect of the painting work can be diversified.

The invention relates to the technical field of bridge deformation detection, and discloses a bridge deformation detection method and system, and the method comprises the steps: carrying out the pre-analysis of a bridge, and arranging deformation monitoring points; laying an image acquisition device, and matching laying reference points to form a reference plane; acquiring a bridge image as a basic image when no pedestrian or vehicle runs on the bridge, and measuring and calculating to obtain space coordinates of an image acquisition device, a deformation monitoring point and a reference point; when pedestrians or vehicles run on the bridge, performing image acquisition on the bridge according to a preset frequency to obtain a deformation image; establishing a three-dimensional deformationcoordinate system O-XYZ to obtain three-dimensional deformation values of the deformation monitoring points, and summarizing the three-dimensional deformation values to obtain a dynamic deformation curve graph of the deformation monitoring points in X, Y and Z directions. The dynamic deformation of the bridge can be monitored in real time, static deformation can be measured, potential risks are effectively warned, the operation is easy, the cost is low, and wide application prospects are achieved.

The invention discloses a three-dimensional particle system large scale sea climate simulation method based on an octree and belongs to the three-dimensional technology field. The method comprises steps that, sea monitoring data is stored in a space database; an octree data set A at a designated time segment in a target observation region on a digital earth from the space database is acquired; the target observation region on the digital earth is divided according to the octree principle into multiple sub spaces, a particle emitter is arranged in each division sub space; association relations between data in the octree data set A and the particle emitters in the sub spaces are established, particle emitter parameters in the sub spaces are set according to data characteristics to make particles emitted by the particle emitters to operate along ellipsoid coordinate locus. Through the method, data space attributes can be clearly expressed, rapid retrieval can be conveniently carried out, and thereby data characteristic expression and true monitoring result reduction can be realized through limited bearable rapidly-displayed data bulk at any detail level.

The invention discloses a method for following display of a labeling graph based on a serial port. The method comprises the steps of judging the moveable scope of the graph, receiving and sending the serial port data and judging the correctness of a mouse position according to the attribute of the image color in the scope. According to the invention, on the basis of the serial port technique, the mouse moving track in the visible scope of the screen is accurately recognized, the following movement of the following graph is generated according to the mouse moving track, the drawing and the following display of the labeling graph are realized, some display contents can be highlighted according to the requirements in a demonstration process, and the visibility, accuracy and convenience in displaying the content can be promoted.

The invention discloses an improved Mathews stability diagram evaluation method based on photogrammetry, BQ, RQDt and crustal stress, and belongs to the field of Mathews stability diagram evaluation methods, and the method comprises the following steps: (1) quickly obtaining structural plane digital photogrammetry; (2) conducting structural plane fuzzy equivalent clustering analysis; (3) conducting rock mass quality calculation based on a BQ index; (4) generating and sectioning a rock mass three-dimensional fracture network model; (5) drawing an RQDt anisotropy diagram; (6) solving an optimalthreshold t based on BQ inversion; (7) solving an RQDt under anisotropy conditions; (8) measuring a crustal stress; (9) improving a Mathews stability graph method; and (10) conducting evaluation basedon an improved Mathews stability diagram. According to the method, photogrammetry, fuzzy equivalence analysis, a BQ theory, a fracture network model, a generalized RQD theory and a crustal stress measurement method are combined, and improved Mathews stability diagram method mine room stability evaluation considering RQDt anisotropy and crustal stress fitting is achieved. The method is clear and suitable for evaluating the stability of the mine room surrounding rock.

The invention discloses automatic production equipment for sewing gloves. The automatic production equipment comprises a rack and a sewing machine; the rack is provided with a rotary motor, an outputshaft of the rotary motor is connected with a turning arm, and two columns of the turning arm are connected with a fixing plate; a fixing roller is arranged on the fixing plate, and a gear roller is arranged outside the fixing roller and is meshed with a gear belt; a cushion block is arranged at the inner side of the gear belt, and a clamping plate is fixed to the cushion block and is provided with a through hole and a glove model cavity; a blanking mechanism cooperated with the glove model cavity is arranged at the lower end of the rack; the rack is provided with a reel, a mounting block anda transition roller, the mounting block is provided with an adjusting plate, the adjusting plate is provided with a press roller, and the mounting block is provided with a feed striping assembly; an automatic delivering frame is arranged below the feed striping assembly and is provided with a first delivering platform and a second delivering platform. By means of the automatic production equipmentfor sewing the gloves, integrated automatic production is achieved, and the production efficiency is high.