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Mastering Development

WebGL Reading pixels properly from offscreen canvas

I know there are a lot of resources on this, but none of them have worked for me. Some are: webgl readpixels is always returning 0,0,0,0, and this one: https://stackoverflow.com/questions/44869599/readpixels-from-webgl-canvas\ as well as this one: Read pixels from a WebGL texture but none of them have been either helpful or successful. The goal: Render an […]

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Mastering Development

How do I change the duration of PopScreen Animation?

I tried to implement custom animations for Navigation.push for the first time. Here is my code: onGenerateRoute: (routeSettings) { return PageRouteBuilder<dynamic>( settings: routeSettings, pageBuilder: (context, Animation<double> animation, Animation<double> secondaryAnimation) { switch (routeSettings.name) { case WelcomeScreen.id: return WelcomeScreen(); case LoginScreen.id: return LoginScreen(); case RegistrationScreen.id: return RegistrationScreen(); case HomeScreen.id: return HomeScreen(); default: return null; } }, transitionDuration: […]

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Mastering Development

Convert Python into Java / Kotlin using some operations

I’m totally new in OpenCV. Does anyone knows how to convert Python into Java/Kotlin? Only these a bit tricky to translate it. References: https://pastebin.com/hQaiUugZ Especially on these (how exactly to handle the array of diff, gray & fgmask with conditional inside: diff[abs(diff)<13.0]=0 gray[np.abs(gray) < 10] = 0 fgmask = gray.astype(np.uint8) fgmask[fgmask>0]=255 PS: Stop downvote if […]

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User Help

What is the best date format for a CSV file so that Excel doesn’t mess it up upon loading?

this is an example of CSV file: timestamp,datetime,price,volume,is_buy,cycle,realized_pnl,unrealized_pnl,fees_paid,margin_use,volume_traded,average_price,position_price,order_long_price,order_short_price 1596112043043,2020-07-30 12:27:23.043,319.5,5,false,0,0,0.0,0,0,0,319.5,0,271.58,-367.42 1596112045045,2020-07-30 12:27:25.045,319.5,0.269,false,0,0,0.0,0,0,0,319.5,0,271.58,-367.42 1596112045045,2020-07-30 12:27:25.045,319.49,3.645,false,0,0,0.00,0,0,0,319.50,0,271.58,-367.42 the timestamp is a Unix timestamp and is what is really used by the code. The datetime column is a ‘human readable’ date string. But when Excel loads that CSV, it looks like that: I tried to use ‘/’ and ‘-‘ […]

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Mastering Development

How to increase the space between yticklabel of subplot and main yticklabel in plotly?

I am learning plotly and trying to customize a subplot. I need to do following things: Make only sub yticklabels colorful not yticks. For example, make "Success" green but yticks "0.40% and 0.20%" as it is. Increase space between subplot ylabel and main ylabel. For example, make main ylabel Error Rate (%) outside of subplot […]

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Mastering Development

Add null features to train model when new phrase comes and model new inputs

Im training a model to detect entities in phrases. My train is composed by 500 phrases, which have 1000 words. So, my X_train.shape = (500,1000) X_train = [[0. 0. 0. 0. …], [0. 0. …], …]. <– already have this Each column is about an specific word (order is very important). When I want to […]

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Game Creation Mastering Development

drawing a sphere in javascript using webgl

can someone help me in programming a sphere in javascript using opengl? I have tried many codes like the function sphere but no outputs is obtained: function initBuffers() { vertices = [ -0.3, -0.3, 0.0, -0.3, 0.3, 0.0, 0.3, 0.3, 0.0, 0.3, -0.3, 0.0 ]; vertexBuffer = gl.createBuffer(); gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer); gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.STATIC_DRAW); vertexBuffer.itemSize […]

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Game Creation Mastering Development

OpenGL convert mouse position to world coordinates without gluUnproject in Python?

I have been trying to learn OpenGL and my current goal is to move a circle on mouse drag. I have created the circle, but I cannot seem to be able to map my mouse coordinates to the world coordinates using glOrtho. I also set the initial window position to 100, 100, I don’t know […]

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Mastering Development

I want to create a simple app which diplays distance between 2 given points.But it doesn’t allow me to enter a location

D/TransportRuntime.SQLiteEventStore: Storing event with priority=DEFAULT, name=LE for destination cct D/TransportRuntime.JobInfoScheduler: Upload for context TransportContext(cct, DEFAULT, ) is already scheduled. Returning… The app doesn’t even crash.Here is my build.gradle(:app) file apply plugin: ‘com.android.application’ android { compileSdkVersion 30 buildToolsVersion "30.0.1" defaultConfig { applicationId "com.example.map" minSdkVersion 19 targetSdkVersion 30 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" } buildTypes { […]

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Mastering Development

PyTorch expected CPU got CUDA tensor

I’ve been struggling to find what’s wrong in my code. I’m trying to implement DCGAN paper and from the past 1 hour, I’m going through these errors. Could anyone please help me fix this? I’m training this on Google colab with GPU runtime but I’m getting this error. Yesterday, I implemented the first GAN paper […]