vtk

Vtk inserts incorrect color between nodes when mapping texture to mesh

由 牧云@^-^@ 提交于 2020-06-17 07:20:54
问题 Hi I am trying to map a texture to 3d mesh using Mayavi and Python bindings of vtk. I am visualising an .obj wavefront. This obj is 3D photograph of a face. The texture image is a composite of three 2D photographs. Each node in the mesh has an (uv) co-ordinate in the image, which defines its color. Different regions of the mesh draw their colours from different sections of the image. To illustrate this I have replaced the actual texture image with this one: And mapped this to the mesh instead

Vtk inserts incorrect color between nodes when mapping texture to mesh

由 怎甘沉沦 提交于 2020-06-17 07:20:25
问题 Hi I am trying to map a texture to 3d mesh using Mayavi and Python bindings of vtk. I am visualising an .obj wavefront. This obj is 3D photograph of a face. The texture image is a composite of three 2D photographs. Each node in the mesh has an (uv) co-ordinate in the image, which defines its color. Different regions of the mesh draw their colours from different sections of the image. To illustrate this I have replaced the actual texture image with this one: And mapped this to the mesh instead

Static lib vs DLL in visual studio

由 六月ゝ 毕业季﹏ 提交于 2020-06-16 11:31:28
问题 I have built VTK in my computer with both dll and .lib files. When I want to create a project that uses VTK, I have to include the header files and link .lib files in project properties. In addition I have to add the .dll files in to the project path as well. I have several questions regarding this, What is the difference between .libs and .dll files? Is it possible to create a project with only using either .dll or .lib files. (I can link the .lib files and not add dlls to path or add dlls

Extract Triangles IDs from VTU file

由 自闭症网瘾萝莉.ら 提交于 2020-05-30 07:30:08
问题 I have a pvtu file with associated vtu files from which I want to display some data. If I load the pvtu in Paraview (5.6+), I get the following image when I choose Solid Color (White) and Surface With Edges: The mesh is clearly anisotropic close to the top boundary with almost flattened triangles; this is the expected behaviour. If I now load the same pvtu in Python and display the mesh in the following manner, import numpy import matplotlib.pyplot as plt import vtk gridreader = vtk

No matching distribution found for vtk error

由 杀马特。学长 韩版系。学妹 提交于 2020-05-24 07:39:48
问题 I tried to use $pip install vtk but I faced an error [enter image description here][1] https://i.stack.imgur.com/piSTo.png "ERROR: Could not find a version that satisfies the requirement vtk (from versions: none) ERROR: No matching distribution found for vtk" I tried everything 1. Installing both 32 bit and 64 bit 2. Installing all versions of python from 3.5 to 3.8 3. Upgrading pip and also used Anaconda,I installed it properly but still not working in python and not identified in cmd by

Create mesh from cells and points in Paraview

由 醉酒当歌 提交于 2020-05-12 11:10:44
问题 I have a CSV file with stress data and geometry that I have exported from ANSYS Mechanical that I would like to visualize in Paraview. Each node has a bunch of stress data related to it. I managed import the points as a point cloud in Paraview but I want to recreate the ANSYS mesh as well. I thought that "programable source" in Paraview could be an alternative way and with some googleing I could probably figure out how to read the data in to numpy arrays but the fundamental question is, how

Create mesh from cells and points in Paraview

由 ∥☆過路亽．° 提交于 2020-05-12 11:09:09
问题 I have a CSV file with stress data and geometry that I have exported from ANSYS Mechanical that I would like to visualize in Paraview. Each node has a bunch of stress data related to it. I managed import the points as a point cloud in Paraview but I want to recreate the ANSYS mesh as well. I thought that "programable source" in Paraview could be an alternative way and with some googleing I could probably figure out how to read the data in to numpy arrays but the fundamental question is, how

Reading and plotting VTK file data structure with python

由 孤者浪人 提交于 2020-05-11 10:18:06
问题 I have a VTK file (unstructured grid) with points and cells . I can import the file and read it into using the meshio python package. If I type the command mesh.cells I see a dictionary called 'hexahedron' with an array made up of lists inside like this: {'hexahedron': array([[ 0, 162, 185, ..., 163, 186, 23], [162, 329, 351, ..., 330, 352, 186], [329, 491, 514, ..., 492, 515, 352], ..., [483, 583, 600, ..., 584, 601, 490], [583, 650, 656, ..., 651, 657, 601], [650, 746, 762, ..., 747, 763,

Windows7系统下OpenCV2.4.4+PCL1.6.0+SSBA3.0+VS2010 IDE32环境下编译和安装以实现Sfm和PCL点云数据可视化

由 ぐ巨炮叔叔 提交于 2020-05-08 08:23:12
　　最近在学习《深入理解OpenCV:实用计算机视觉项目解析》一书的第三章和第四章时，遇到很多编译问题，书中又没有详细的讲解环境配置和搭建过程。经过多天的捉摸、调试、排错终于将两章的程序都调试成功了，先做个记录以备忘。该书的英文名为：《Mastering OpenCV with Practical Computer Vision Projects》。 一、开发环境概述 　　1、OpenCV版本：2.4.4； 　　2、PCL版本：1.6.0； 　　3、SSBA版本：3.0； 　　4、IDE版本：VS2010 32位 ，字符集： 使用多字节字符集 ； 　　5、PCL如果涉及到OpenGL，则采用OpenGL32.lib和OpenGL.dll。 二、OpenCV2.4.4编译和安装 　　 1、OpenCV2.4.4下载地址： https://github.com/opencv/opencv/releases?after=2.4.6.1 ，如下图所示： 　　2、具体的编译和配置工作参考： OpenCV2.4.12 开启OpenGL启用三维可视化支持 。 　　 注意 ：（1）第一次点击“Configure”时，请在“Specify the generator for this project”选择“Visual Studio 10”,该选项是32位的； 　　　　　（2

四、关于如何使用软件库的一个技巧-避免重复配置属性表

由 心不动则不痛 提交于 2020-05-07 12:50:06
一、前言 我们需要使用各种函数库，比如Opencv,Itk, vtk,当不同的函数库使用的时候，在VS配置属性是一个很麻烦的问题，并且设计到不同函数库的交叉使用，所以这里提供一个小技巧。 　　那就是我们把每一个函数库的配置为属性表的形式（这个其实我在itk的安装里面已经介绍过），需要使用什么函数库的时候，我们只需要添加对应的属性表即可。 二、以QT使用vtk工程为例子 我们建立了一个工程以后，选择工程配置为release x64版本 1、选择属性管理器 2、右键添加-新建属性表 3、然后定义属性表格的位置和名称 4、在VTK属性表里面选择右键，属性 5、出现如下的界面： 6、选择VC++ 然后配置包含目录为VTK的安装路径的inlcude文件夹 　　　　 配置库目录为VTK安装路径的lib文件夹。 7、然后配置C++,常规 8、配置链接器，附加依赖项 在附加依赖项里面输入所有的安装文件夹\lib\里面的所有的lib文件名 然后保存。 9、其他工程使用 下次需要使用的时候我们直接把这个属性复制到对应的工程里面，然后选择Release x64选项，然后右键点击添加-》现有属性表 这样就避免了二次配置。 其他的函数库的配置也是类似的。 当我们需要使用这个函数库的时候，我们只需要把这个对应的属性表格通过属性管理器添加就好。 三、QT属性表的配置 属性表过程类似，只把具体参数列举出来：
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