4d

4D plot (3D+color) from 4 row vectors

故事扮演 提交于 2019-12-08 07:07:21
问题 I have 4 row vectors x, y, z and s , all of them have equal sizes 1*size . x, y, z should be the three Cartesian corodinate axes and s should be represented by colors (I want figure like below image). The statement Surf does not accept row vectors. I have read several stackoverflow post, but I could not find the answer. How can I plot such a figure? I really appreciate any help you can provide. 回答1: I can't test it because you didn't provide any data, but you could try: trisurf(x,y,z,s) If

How to multiple a 2D point with a 4D Matrix

北慕城南 提交于 2019-12-06 14:05:20
问题 How can I convert a 2D point (or 3D with Z=0) to 2D point(where Z is ignored) with a 4D matrix ? I am using Microsofts Silverlight to project a 2D control as pseudo 3D using a Matrix3D definition of Matrix3D I know the initial 2D coordinate of a point in the untransformed control and I want the 2D position of the point after the transform. The silverlight API is sparse regarding 3D methods. Please suggest basic math to perform the calculation. This is a follow on from a silverlight specific

How to multiple a 2D point with a 4D Matrix

岁酱吖の 提交于 2019-12-04 19:58:07
How can I convert a 2D point (or 3D with Z=0) to 2D point(where Z is ignored) with a 4D matrix ? I am using Microsofts Silverlight to project a 2D control as pseudo 3D using a Matrix3D definition of Matrix3D I know the initial 2D coordinate of a point in the untransformed control and I want the 2D position of the point after the transform. The silverlight API is sparse regarding 3D methods. Please suggest basic math to perform the calculation. This is a follow on from a silverlight specific question Edit further details its not working. I am using x = x0 * matrix[0][0] + y0 * matrix[1][0] + z0

3-Dimensional Plot in GnuPlot where color is a fourth column in my data file?

て烟熏妆下的殇ゞ 提交于 2019-12-04 01:09:52
问题 I have a datafile that looks like this: 1 2 3 0.5 2 8 9 0.2 3 4 78 0.4 6 5 7 0.01 9 9 9 0.3 10 12 18 0.9 6 8 4 1 I would like to do a graph like this http://2.bp.blogspot.com/-378_rAaSSVU/UzU0gnGcr9I/AAAAAAAABnU/P1GwP9RKBkM/s1600/gnuplot.png Where the 4th column is the color. I tried - obviously incorrect because I do not use the fourth column but I failed to find anything in the documentation: set dgrid3d 30,30 set view 60,45 set hidden3d dataFile='prova.dat' set palette defined (0 "blue", 0

Intuitive understanding of 1D, 2D, and 3D Convolutions in Convolutional Neural Networks

匿名 (未验证) 提交于 2019-12-03 01:12:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Can anyone please clearly explain the difference between 1D, 2D, and 3D convolutions in CNN (Deep Learning) with examples? 回答1: I want to explain with picture from C3D . In a nutshell, convolutional direction & output shape is important! ↑↑↑↑↑ 1D Convolutions - Basic ↑↑↑↑↑ just 1 -direction (time-axis) to calculate conv input = [W], filter = [k], output = [W] ex) input = [1,1,1,1,1], filter = [0.25,0.5,0.25], output = [1,1,1,1,1] output-shape is 1D array example) graph smoothing tf.nn.conv1d code Toy Example import tensorflow as tf import

来自德国专业的三维开发软件:C4D R19中文破解版CINEMA 4D

匿名 (未验证) 提交于 2019-12-02 23:42:01
链接: C4D能用于很多行业…..它跟MAYA,3DMAX属于同类软件….只是早期一直都在苹果电脑上面,近几年才移植到WINDOWS…. c4d全程是cinema4D,是德国MAXON开发的三维软件,可以建模,材质,灯光,绑定,动画,渲染等等功能,在影视特效,动画,设计,工业,医药,物理等等方面都有强大的内置。最近很火,因为功能强大,页面超级人性化,极易上手,所以很多人开始学习,个人觉得适合于个人三维工作者。 Cinema 4D 的前身是1989年发表的软件FastRay最初只发表在Amiga上,Amiga是一种早期的个人电脑系统,当时还没有图形界面。 文章来源: https://blog.csdn.net/qq_20882333/article/details/91864762

How to plot 4D contour lines (XYZ-V) in MATLAB?

只愿长相守 提交于 2019-12-02 06:18:56
问题 I have dataset of XYZ as the coordinates and V as the value at each point (100x4 matrix). I plot the 3D surface using patch. (by faces & vertices) How can I plot the contour lines of V (NOT Z) over the 3D surface !? ( The Contour3 function plots 3D contour lines of Z ; But I need contour lines of V. ) Actually I want something like this or this. Thanks a billion for your help. Well actually I found out that the isosurface command is exactly what I want. However, this command requires the V

How to plot 4D contour lines (XYZ-V) in MATLAB?

人盡茶涼 提交于 2019-12-02 02:21:37
I have dataset of XYZ as the coordinates and V as the value at each point (100x4 matrix). I plot the 3D surface using patch. (by faces & vertices) How can I plot the contour lines of V (NOT Z) over the 3D surface !? ( The Contour3 function plots 3D contour lines of Z ; But I need contour lines of V. ) Actually I want something like this or this . Thanks a billion for your help. Well actually I found out that the isosurface command is exactly what I want. However, this command requires the V data to be a 3D matrix. But my V is a vector. And the data in it is completely non-uniform and irregular

Indexing a 4D array with a 2D matrix of indicies

ε祈祈猫儿з 提交于 2019-12-01 20:20:25
I currently have a 4D matrix of images in the form height x width x RGB x imageNumber in which I would like to index with a 2D array without using a for loop. The 2D array is in the format of height x width with the values being the image number to index. I've got it working with A for loop but due to speed is there a way to do it without looping? I've tried resizing the matrix and index array but no luck so far. Here is the for loop I've got working (albeit slowly on large images): for height = 1:h for width = 1:w imageIndex = index(height, width); imageOutput(height, width, :) = matrix4D

各种常见文件的hex文件头

大兔子大兔子 提交于 2019-11-28 06:29:43
我们在做ctf时,经常需要辨认各种文件头,跟大家分享一下一些常见的文件头。 扩展名 文件头标识( HEX ) 文件描述 123 00 00 1A 00 05 10 04 Lotus 1-2-3 spreadsheet (v9) file 3gg; 3gp; 3g2 00 00 00 nn 66 74 79 70 33 67 70 3rd Generation Partnership Project 3GPP (nn=0x14) and 3GPP2 (nn=0x20) multimedia files 7z 37 7A BC AF 27 1C 7-ZIP compressed file aba 00 01 42 41 Palm Address Book Archive file abi 41 4F 4C 49 4E 44 45 58 AOL address book index file aby; idx 41 4F 4C 44 42 AOL database files: address book (ABY) and user configuration data (MAIN.IDX) accdb 00 01 00 00 53 74 61 6E 64 61 72 64 20 41 43 45 20 44 42 Microsoft Access 2007 file ACM 4D 5A