Is this the RegEx for matching any cell reference in an Excel formula?

I have been trying to create a regular expressions pattern that matches any reference in any Excel formula, including absolute, relative, and external references. I need to return the entire...

Cartesian to Polar (3d coordinates)

How do you convert between Cartesian and Polar (and back) coordinate systems in 3D space? Preferably with a c# example but anything would really be appreciated. Thanks! Edit When 20% of the change...

3D variant for summed area table (SAT)

As per Wikipedia: A summed area table is a data structure and algorithm for quickly and efficiently generating the sum of values in a rectangular subset of a grid. For a 2D space a summed area...

Dynamic multidimensional array on the heap

I want to create a function which can allocate a multidimensional array on the heap with only one call to malloc. (Pointer array) So a function call would look like this: size_t dim[2] = {2,...

C++ Marching Cubes Algorithm Explanation

I am trying to implement the marching cubes algorithm in C++ based on this description: http://paulbourke.net/geometry/polygonise/ But i don't understand how do you calculate the "GRIDCELL"...

how to reconstruct in 3d of a scene from two images

I wish to make a 3D reconstruction of a scene. For that, I have 2 images of the scene taken from two different angles. Is there a library that does that? (I work in python) if not, what are the...

How to remove 'press button' effect and make button flat even on click

I have the button with following styles button { background: none; border-color: #87db41; color: #87db41; padding: 5px 5px; width: 30%; text-align: center; &: active { ...

three.js PlaneGeometry and intersectObjects

In three.js, I create a plane: var planGeom = new THREE.PlaneGeometry( 5,5,1,1 ); var planMat = new THREE.MeshBasicMaterial( {color: 0xffff00, side: THREE.DoubleSide} ); var plan = new THREE.Mesh(...

Quaternion - Angle computation using accelerometer and gyroscope

I have been using a 6dof LSM6DS0 IMU unit (with accelerometer and gyroscope). And I am trying to calculate the angle of rotation around all the three axes. I have tried may methods but not getting...

Unity UI button not reacting to clicks or hovering

I'm using Unity 3D's new UI system to build a pause menu for my game. Currently I'm trying to have my buttons respond to mouse clicks. Some of my hierarchy is as follows: When I click on one of...

3D model formats in ARKit / ARCore development

I am a beginner at AR game development for both iOS and Android. I have the following questions: What kinds of 3D model formats are supported by ARKit for iOS and ARCore for Android respectively?...

Can access localhost but virtual host can't be reached

First post on stackoverflow, so thanks in advance for the help. I am having an issue connecting to my virtual host (created in WAMP), though I can access my localhost site with no issue. When I...

How to rotate only the camera in ThreeJS dragging the mouse in the scene?

I'm working in a ThreeJS project and I want to rotate the camera with the mouse. I've seen that with OrbitControls, I can rotate my camera around a point or an object but I cant rotate my camera...

Reading a JSON from DB with myBatis

I have a column in DB I want to save it as JSON and retrieve it back. My approach is: I am saving it as ClobTypeHandler and trying to retrieve it as ClobTypeHandler. I am using Mybatis, However...

Unable to get the menu items name and slugs in WordPress development

I'm new to WordPress development. I have made a design of the nav menu. I want to create the menu from admin panel and want to get those menus at my front page of the website with my custom CSS....

Program crashes at realloc on direct run, but runs fine in debug mode

I'm trying to implement binary heap with dynamically allocating and free memory as and when new nodes are inserted or deleted. So, whenever insert/delete node is called, I'm using realloc to...

How to Convert .USDz formats to .OBJ or .ABC files?

I have been trying to build a solution to converting from .USDZ to other [3D formats]. Using online options you may convert [3D formats] to .USDz...

NCL-Is there a way to subtract same variable, different values (same file) from index information?

I have a 3D nc variable PP = (time, lat, lon) of accumulated precipitation for an entire year and I want to calculate daily values. I want to do something link in the example, but couldn't find...

Handling Multidimensional Arrays in Numpy

I've coordinates as groups. All group must be stored as seperated. First I stored them list in list in list like this: PointOne: numpy.array([x, y, z]) GroupOne: numpy.array([PointOne, PointTwo...

Is there a way to label multiple 3d surfaces in matplotlib?

I attempt to solve a non-linear mathematical optimization problem with linear constraints. For this, I'm trying to visualize the constraints in 3d to see what is happening and why I get a feasible...

how to import all the points from a .pcd file into a 2d python array

How do you import all the 3d points from a file named edge_cloud.pcd and put them into an array? I want the array to be in the format array=[[xvalue1,yvalue1,zvalue1],[xvalue2,yvalue2,zvalue2]]

Decode string with plus sign

Using ASP.NET Core I am receiving the following token (simplified): String token = "Z%2F3+3Q=="; The / is encoded using %2F. I received the token from a URL called on the client using Angular. I...

Visualizing a multivariate normal distribution in 3D with python

Does anyone know how to make a pretty visualization of the PDF of multivariate (bivariate for simply) normal distribution, with each variable's distribution is projected, like the below figure?...

totally clear GPU memory

I can't seem to clear the GPU memory after sending a single variable to the GPU. import torch tm =...

PyOpenGL - How load obj file that has color defined in the mtl file

I have two files, drone2.obj and drone2.mtl. I believe the .mtl file uses RGB color codes for the color instead of using .jpg/.png textures. Here's what drone2.obj looks like when I load it with...

How to rotate 3D Plotly continuous for R shiny App

I am trying to create a constant rotating 3D scatter plotly so that I can put it in my R shiny app. However, I can't seem to get it to constantly rotate (like this:...

How can i scan a qr code from ARScene Camera usin ARCORE

Here I need some suggestion or a want to a way of doing this Scenario: i want to scan a qr code in the ar scene and when i scan the qr code what ever content is there in qr code i will place in...

Why are all of my text mesh pro (tmp) the same color on my Unity canvas

I have been working on a project in Unity. It's a 3D project and I have a 2D canvas. I have been going through and making several buttons with Text Mess Pro (TMP) on them. I have been changing the...

Show image on screen with ursina

I'm making a 3D FPS in Ursina, and I'd like to have my arm skin with the weapon as an image, not an actual 3D model. Does anyone know how to do this ? I tried with Animate from the documentation,...