58 results about "Volume modeling" patented technology

This invention relates generally to methods for localization and visualization of implanted electrodes and penetrating probes in the brain in 3D space with consideration of functional brain anatomy. Particularly, this invention relates to precise and sophisticated methods of localizing and visualizing implanted electrodes to the cortical surface and / or topological volumes of a patient's brain using 3D modeling, and more particularly to methods of accurately mapping implanted electrodes to the cortical topology and / or associated topological volumes of a patient's brain, such as, for example, by utilizing recursive grid partitioning on a manipulable virtual replicate of a patient's brain. This invention further relates to methods of surgical intervention utilizing accurate cortical surface modeling and / or topological volume modeling of a patient's brain for targeted placement of electrodes and / or utilization thereof for surgical intervention in the placement of catheters or other probes into it.

A method and system of transforming a product development process to reduce time in bringing a product to market through high throughput experimentation and advanced statistics and informatics, to transform the product development to a level of higher correlation with engine tests, and to develop better commercial products. This is achieved by modeling in Silico a plurality of component molecular models; deriving in Silico molecular characteristics (descriptors) for each of the plurality of compiled molecular models; creating at least one combinatorial library database record for each of the formulations, the at least one record having a plurality fields for storing information about compositional characteristics; receiving specification requirements for a lubricating oil composition; selecting from a database entries corresponding to compositions having specifications comparable to the received specification requirements; formulating a new lubricating oil composition to comply with received specification requirements; testing the new lubricant oil for compliance with received specification requirements; repeating the selecting, formulating, and testing steps until compliance with received specification requirements is achieved; and correlating the new lubricating oil composition to actual engine performance.

The invention relates to a cutter swept volume modeling method, in particular to a method for expressing a universal cutter model in a cutter frame system by implicit functions in the numerical control machining simulation application and expressing a universal cutter model swept volume by four-dimensional implicit functions comprising time parameters by a rigid motion frame theory and counter movement means. In the machining simulation, the position relationship between a point and the swept volume is rapidly judged so as to realize efficient material removing simulation and collision and interference detection.

The invention discloses a volume modeling method for coal bed underground combustion space areas. The volume modeling method includes: deducing temperature field control equation under the action of seepage by analyzing affection mechanisms from the seepage to the temperature fields on the basis of high temperature of the coal bed underground space areas and relative constant temperature of normal underground temperature fields according to the thermal conduction basic theory,; introducing Bessel function to deduce peripheral temperature field distribution equation of combustion passages, introducing finite element values to solve, inverting the distribution of the temperature fields under the action of seepage through finite element value software by the aid of field temperature detection data, and determining high-temperature affection boundary of the combustion passages; acquiring the coal bed temperature distribution matched with the field detection best by adjusting section size of the combustion space areas, inverting the shape and the size of the coal bed underground combustion space areas, and computing approximate volume of the combustion space areas. The volume modeling method for the coal bed underground combustion space areas is capable of determining the shape and the size of the coal bed underground combustion passages more accurately, and thermal source models of the combustion space areas of the combustion passages, which are provided by the volume modeling method, have a certain practical value when the volume modeling method is compared with other computing methods.

The invention discloses an achievement method for virtualizing three-dimensional glass breaking animations. The achievement method comprises the following steps of S1, utilizing an image of an entity with cracks to obtain a glass breaking data model; S2, virtualizing a striking object mode; S3, breaking the established glass breaking data model; S4, virtualizing the breaking animations. The achievement method for virtualizing the three-dimensional glass breaking animations comprehensively utilizes a three-dimensional software breaking program, an extrusion program and the like and can achieve production of the vivid and accurate breaking animations, the process is simple and clear, and the technical problems of inaccuracy, poor effect and complicated operation in the prior art are well overcome. Compared with the prior art, the achievement method is good in effect and simple and convenient to operate.

The invention discloses an oil tank volume modeling method. The method includes the steps that firstly, oil tank information is acquired by means of a liquid level meter in an oil tank, and gun lifting / hanging data is acquired by means of an oil engine matched with an oil gun in work; and according to the acquired oil tank information and the gun lifting / hanging data, snapshot data is generated and combined to form a historic snapshot information database; secondly, according to one snapshot data in the historic snapshot information database, a diagram is drawn, drawing of a next snapshot data continues after the snapshot data is finished, and the drawn diagrams are combined into a diagram set after multiple times of drawing; thirdly, according to the diagram set obtained in the second step, a two-dimensional h / v graph similar to the diagram set is drawn, and multiple discrete values are selected from the two-dimensional h / v graph to construct an oil tank volume model, wherein h is the height of the oil tank, and v is the volume of the oil tank. By means of the oil tank volume modeling method, the oil tank volume model can be automatically constructed through the three steps.

The invention provides a Switch rectifier multi-objective optimization design method based on an NSGA-II algorithm, and belongs to the technical field of rectifier parameter optimization design. The method comprises the following steps: 1, determining an optimized component and carrying out power and volume modeling; 2, defining a target function; 3, initializing a population; 4, selecting; 5, selecting binary match; 6, crossing; 7, realizing variation; 8, combining the parent population and the offspring population to obtain a first generation population; 9, forming populations by utilizingthe parent population and the offspring population; 10, reaching the maximum evolution algebra gen; and 11, outputting a Pareto optimal solution leading edge and a parameter matrix, according to the selected target performance indexes, obtaining corresponding decision variable values, namely solutions of the optimization problem, and selecting and designing components according to the parameters.

The invention provides a rendering method and system of a virtual environment three-dimensional model, and the method comprises the following steps: constructing a virtual reality scene, and loading athree-dimensional model needing to be rendered into the virtual reality scene; adjusting a coloring area of the three-dimensional model to the center of the scene in response to the three-dimensionalmodel position adjusting instruction; constructing a track constraint curve of the brush in the coloring area; and in response to the collision behavior or the contact behavior of the coloring area,obtaining front-end brush data and brush stroke data, and coloring the coloring area according to the obtained brush data, the brush stroke data and the track constraint curve of the brush. The methodand system have the advantages of being convenient to operate, capable of preventing drawing jitter errors and high in rendering image visual comfort degree.

The embodiment of the invention discloses a picture rendering method and device, computer equipment and a medium. The picture rendering method comprises the steps that when a game picture is loaded, sending index numbers of rendering parameters carried by all objects in a target loading picture to a shader; calling the shader to query rendering parameters corresponding to each object in a parameter query map according to the index number, and writing multiple groups of rendering parameters of the object in the parameter query map in advance; and calling the shader to render and display each object according to the inquired rendering parameters. According to the embodiment of the invention, the problems that a large number of materials similar to chartlets are adopted and need to be storedindependently are solved; the storage space and the calculation performance are saved; the art requirements for color change and individual change of an object model are met under the condition that multiple materials are not increased; the number of the materials is small; and the overhead of the operation performance is reduced.

The embodiment of the invention discloses a model rendering method and device, equipment and a storage medium, and the method comprises the steps: obtaining a target object model which comprises a cross-shaped insertion piece profile model and a billboard model; determining the position data of the billboard surface patch of the billboard detail model; and rendering and displaying the target object model based on the position data of the billboard surface patch. According to the technical scheme provided by the embodiment of the invention, the target object model is designed by using two methods of the cross insert and the billboard, and rendering display are performed; defects of long rendering time, large memory occupation, obvious insert line effect of the model, poor beauty and the like caused by excessive use of the triangular surface of the model are overcome, the rendering pressure of the game engine is alleviated, the memory occupation is reduced, and the display frame is morebeautiful.

The invention discloses a method for detecting the sealing performance of a shell junction surface, and the method comprises the following steps: 1), building a three-dimensional digital model of a CAD of a gearbox shell, and importing the three-dimensional digital model into finite element software; 2) simplifying a gearbox shell model; 3) carrying out degree-of-freedom constraint on the simplified shell model, and loading bolt pre-tightening force; (4) performing working condition loading on the constrained shell model, and (5) setting solving parameters to obtain the deformation cloud picture, and comparing deformation parameters of the deformation cloud picture with a design target value to obtain sealing performance parameter. The detection method is completed in software, calculationresults are visual, high in precision and low in cost, and the result is not influenced by the external environment.

The invention discloses a manufacturing method of a grid combined type graphic model based on a magnetic principle. The manufacturing method comprises the following steps: carrying out 3D modeling ona basic unit geometry; according to the model data, enabling the basic geometry to be subjected to 3D printing forming manufacturing forming; magnetizing the surface of the unit basic geometry model;carrying out grid-type modular free combination on the magnetization unit body models to generate a new combination body model; and observing the forming process of related intersection lines and intersecting lines of the inner surface and the outer surface of the new assembly model, and analyzing the view projection characteristics. The manufacturing method has the advantages that: due to the modular design characteristic, flexible disassembly and assembly, free combination and convenience in carrying can be realized by utilizing a magnetic principle; due to the detachable characteristic, theinner structure and the outer structure can be observed in all directions, and the forming process of the intersection lines and the intersecting lines of the three-dimensional surface can also be observed and analyzed through model combination; and each basic unit body is of a thin-wall hollow structure and is manufactured through the 3D printing technology, and the requirement for light weightis met.

The invention relates to the technical field of three-dimensional animation production, in particular to a three-dimensional animation production method and a material import method. The method comprises the following steps: S1, designing a model, i.e., setting a role needing to be produced, designing and drawing a plane model of the role, and drawing a sub-lens; S2, carrying out role modeling, i.e., creating a polygonal role rough model body through a polygonal modeling module, and performing wiring and point adjustment on the polygonal role rough model body to construct a body rough model; S3, extracting a skeleton frame, i.e., creating a role skeleton frame for the body model, establishing skeleton joints into the body model, and binding role skeletons with the body model; and S4, carrying out skeleton key point setting, i.e., binding the key points during movement through the movement of the body model and the role skeleton. The model making is more accurate through the setting of the role simulation parameters and the skeleton key points, and the data reserved after the model making can provide parameters and data sources for the next animation making.

The invention belongs to the technical field of vision, and relates to a character processing tool, in particular to a display method for converting two-dimensional characters into three-dimensional characters. The method comprises the following steps of: converting two-dimensional content into a three-dimensional character display effect by using a Web GL technology through data modeling according to user-defined two-dimensional characters; according to the method, enabling a user only to need to input characters, set character-related attributes, texture maps and the like at a Web end, then enabling a program to render contents set by the user into a 3D character through calculation, enabling the user to disorderly consider complex three-dimensional coordinate calculation and font model establishment, and constructing a three-dimensional model through set fonts and characters; mapping the texture picture to a three-dimensional character model; defining three-dimensional rotation of the character model by a user; storing the 3D characters into a picture after the 3D characters are stored by the user; and the program saves data of the user and then finishes manufacturing. The method is simple to manufacture and does not need calculation; the reuse rate is high; the rendering performance is high; and compatibility is strong.

The invention relates to a product digital twinning representability modeling method. The method comprises the following steps: acquiring three-dimensional geometric information, physical attribute information, assembly topology information and assembly process information of a product; constructing a product ontology model according to the three-dimensional geometric information, the physical attribute information and the assembly topology information; according to the product ontology model and the assembly process information, utilizing a knowledge graph to construct an assembly process model; according to the assembly process model, utilizing a machine learning algorithm to construct an assembly performance model; constructing a product function model according to the assembly performance model and the application information of the product; and performing simulation and digital display on the product by using the product function model. According to the invention, the use function of a real simulation product can be realized.

The invention discloses a method and device for removing a scene object model in a game. The method comprises the steps of removing each scene object model in a game scene in a predetermined rejectionprocessing mode, wherein the predetermined rejection processing mode comprises cone rejection processing and / or potential visible object rejection processing; obtaining occlusion information of the scene object model after removing processing; determining the occlusion type of the scene object model after elimination processing according to the occlusion information; obtaining a target scene object model from the removed scene object model based on the occlusion type detection; and rendering the target scene object model. According to the method and the device, the technical problem of relatively low calculation efficiency of a CPU due to calculation redundancy in the process of removing the scene object model from the CPU in the prior art is solved.

The embodiment of the invention provides an animation rendering method and device, and relates to the technical field of data processing, and the method comprises the steps: constructing a three-dimensional model of an object, and enabling the three-dimensional model to serve as an object model; obtaining each two-dimensional image corresponding to a three-dimensional animation which needs to be rendered on the surface of the object model and represents the motion of an animation object, wherein the animation object is an object in the three-dimensional animation which needs to be rendered onthe surface of the object model; and sequentially rendering each two-dimensional image to the surface of the object model according to the display sequence of each two-dimensional image in the three-dimensional animation and the position of the animation object in each two-dimensional image on the surface of the object model. By applying the scheme provided by the embodiment of the invention, thethree-dimensional animation is rendered on the surface of the three-dimensional object model, and the efficiency of expressing the three-dimensional animation on the surface of the object model can beimproved.

The embodiment of the invention discloses a Modelica-based model splitting method and device and a medium, and relates to the technical field of system simulation. The method comprises the following steps: acquiring a physical ontology model of a thermal fluid system constructed through Modelica software; performing a semi-physical simulation test on the physical ontology model through a simulation machine, and splitting the physical ontology model from a fluid physical interface to obtain at least two sub-models if the single-step solution time of the physical ontology model is greater than the physical interaction time of the machine; respectively allocating different computing resources in the simulation machine to the at least two sub-models, and respectively operating the at least two sub-models through the different computing resources; and performing data interaction between the at least two sub-models through the simulation machine according to the machine physical interaction time so as to ensure the precision to the maximum extent while realizing real-time simulation.

The invention discloses a rendering method based on a WebGPU, an electronic terminal and a storage medium. According to the technical scheme provided by the embodiment of the invention, in the perspective projection rendering process, for at least one object model to be rendered within the current visual angle visible range, the depth values are allocated to the triangular surfaces on the object model according to the sequence of the relative distances between the triangular surfaces on the object model and the current roaming point location from far to near; therefore, reasonable depth values can be allocated to both the near triangular surface and the far triangular surface, the z-bridging phenomenon caused by the fact that the proper depth value cannot be allocated is avoided, then the object model can be efficiently and clearly rendered to the graphical user interface by utilizing the WebGPU according to the texture data and the depth value of each triangular surface on the object model, and the user experience is improved. And the model rendering quality is improved.

The invention discloses a game animation generation method and device, a storage medium and a terminal, and mainly aims to solve the problem that the existing animation simulation growth generation effect is poor. The invention relates to the technical field of data, and comprises the following steps: obtaining node data and child node data of a climbing object, connecting the node data and the child node data to generate a main body model of the climbing object, wherein the node data is used for representing the climbing state of the climbing object attached to a scene object in a game scene, and the child node data is determined based on the node data; determining a target fulcrum of the main body model, and constructing an affiliated model of the main body model at the target fulcrum; and rendering the main body model and the auxiliary model of the climbing object to generate an animation of the climbing object. The method is mainly used for generating game animations.

The invention discloses a scene resource optimization method based on MAYA three-dimensional software. The method comprises the following steps: exporting scene object models of scene resources of anMAYA three-dimensional software project as a real model asset file, a GPU cache model asset file and a renderer agent asset file respectively; creating all the exported asset files into an AssemblyDefinition asset file by using an Assembly format of the MAYA three-dimensional software, and carrying out management operation on the Assembly Definition asset file through an asset management library of the MAYA three-dimensional software; and when a final model scene needs to be manufactured, introducing a plurality of AssemblyDefinition asset files from the asset management library to assemble the AssemblyDefinition asset files into the final model scene. According to the method, each asset composition scheme is formed by managing and quoting the optimized asset files, so that the practicability, efficiency and usability of the animation production process are improved.