graphics

问题 This is what I have in my paintComponent (most other things omitted, just the stuff that pertains to an Item object called chalice with a polygon field, the explicit parameters of the if statement are not important for this question) Currently, it shows up as solid white because I set the color to all 255, but I want to make it gradually transition to different colors smoothly, not strobing, more like pulsating but I don't really know what that is called. I was thinking about replacing the

问题 I'm getting my feet wet with dynamic module split API delivery in order to break up my game app into Instant and Installable versions. I've been following the Codelabs tutorial here https://codelabs.developers.google.com/codelabs/on-demand-dynamic-delivery/index.html#0. Unfortunately it uses Kotlin for the MainActivity code, which is less specific than Java, but still fairly followable if you've done a Kotlin tutorial. The example includes accessing a text tile in an 'assets' folder in an

问题 I have created a program to draw square grids on a selected image. It works fine for images that has small resolution, but it doesn't work properly on large images. The all grid lines are not visible seem when the image is saved as file. The image I am testing has resolution 3600x4320 and can be shown in the link. How can I fix this problem? My code: Image drawGrid(int n, string imgPath) { Image img = Image.FromFile(imgPath); Graphics grp = Graphics.FromImage(img); grp.SmoothingMode = System

问题 I have created a program to draw square grids on a selected image. It works fine for images that has small resolution, but it doesn't work properly on large images. The all grid lines are not visible seem when the image is saved as file. The image I am testing has resolution 3600x4320 and can be shown in the link. How can I fix this problem? My code: Image drawGrid(int n, string imgPath) { Image img = Image.FromFile(imgPath); Graphics grp = Graphics.FromImage(img); grp.SmoothingMode = System

问题 Is there a library in python or c++ that is capable of estimating normals of point clouds in a consistent way? In a consistent way I mean that the orientation of the normals is globally preserved over the surface. For example, when I use python open3d package: downpcd.estimate_normals(search_param=o3d.geometry.KDTreeSearchParamHybrid( radius=4, max_nn=300)) I get an inconsistent results, where some of the normals point inside while the rest point outside. many thanks 回答1: If you know the

问题 I'm trying to rotate image but couldn't get expected result. I've tried with WIn2D but couldn't make image as expected. My tried Code public async void Rotate(string originalImagepath, Rect originalImageRect, float degrees) { int height = (int)Math.Sqrt(originalImageRect.Width * originalImageRect.Width + originalImageRect.Height * originalImageRect.Height); CanvasDevice device = CanvasDevice.GetSharedDevice(); CanvasRenderTarget webCardImage = null; CanvasBitmap bitmap = null; var logicalDpi

问题 when I am trying to use System::Drawing it giving error "namespace system has no member Drawing". Code: using namespace System::Drawing; 回答1: I think you didn't add the System::Drawing reference Goto Project -> References -> Common Properties -> Framework and References Click Add New References... button Under Assemblies -> Frameworks check System.Drawing and click ok. Update - 2017.8.22 You can click Project -> Add Reference... in Visual Studio 2015. 来源： https://stackoverflow.com/questions

问题 I am looking for acknowledgement on my perception of a method regarding determining whether a point is located inside a triangle or not in 3D. Given a ray in the form R(t) = e + td and a set of three points T = {V0, V1, V2} that forms a triangle in three dimensions, I know how to find the parametic equation for the plane that the three points form and how to determine if the ray intersects this plane or not. Lastly, if it intersects, I want to know if the intersection point actually is within

问题 I'm trying to add multiple classes to my JFrame "frame" using multiple JPanels showing an enemy (red circle), a player (orange diamond), and a base (an outlined black rectangle) but they are not displaying correctly. I have four classes, "Assignment6" (the name of the assignment and my main), "Enemy" (the class for creating enemies), "Player" (the class for creating and moving the player), and "Base" (the class that creates the base that enemies cannot enter). I have not made a method in

问题 I'm trying to add multiple classes to my JFrame "frame" using multiple JPanels showing an enemy (red circle), a player (orange diamond), and a base (an outlined black rectangle) but they are not displaying correctly. I have four classes, "Assignment6" (the name of the assignment and my main), "Enemy" (the class for creating enemies), "Player" (the class for creating and moving the player), and "Base" (the class that creates the base that enemies cannot enter). I have not made a method in