vector-graphics

Is there a way to incorporate vector graphics into LibGDX development?

别等时光非礼了梦想. 提交于 2019-11-29 10:04:51
I haven't found anything in LibGDX that would work with vector graphics. This post suggests that AGG is close as it gets, they also mentioned that it is a lot of pain. Is there a painless alternative ? P.T. There does not seem to be any painless support for vector graphics in Libgdx at this point (mid-2013). First, for vector graphics generally that means SVG in practice. Part of the problem with a "generic" SVG solution is that getting it to work with all the various corner cases seems to be an issue. However, if you are just trying to render your own SVG objects, you may have a simpler

Working of CCD algorithm for Inverse Kinematics

青春壹個敷衍的年華 提交于 2019-11-29 08:47:53
Lets say I've a robotic arm with joints at points A,B,C,D in a 3D space. Let D be the end effector(bottommost child) and A be the topmost parent. Let T be the target point anywhere in the space. The aim is to make the end effector reach the target with minimum rotations in top levels(parents). What I initially thought: 1) Rotate the arm C by angle TCD. 2) Then rotate the arm B by new angle TBD. 3) Then rotate the arm A by new angle TAD. But the end effector seems to point away from the target after step 2. What am I doing wrong and how can I fix it? It's hard to directly code this, but you may

Export JPanel to vector graphics

丶灬走出姿态 提交于 2019-11-29 05:02:11
I would like to export the image in my JPanel to a vector graphics file so it can be edited and printed at a higher-than-screen resolution. Essentially I want its paint() function to be called with a destination Graphics that saves the drawing commands into a vector graphic file. What is a good, simple way to do this? What libraries are recommended? Which vector format would be best, and why? Pierre Have a look at The Java EPS Graphics2D package . Many Java programs use Graphics2D to draw stuff on the screen, and while it is easy to save the output as a png or jpeg file, it is a little harder

Drawing overlapping semi-transparent lines without visible overlap

风流意气都作罢 提交于 2019-11-28 23:58:58
I'm developing a painter program using HTML5 canvas. I have created a drawing tool where the user drags and moves the mouse. I have a listener on mousemove event that draws short lines: Painter.mainCanvas.beginPath(); Painter.mainCanvas.moveTo(Painter.lastX, Painter.lastY); Painter.lastX = e.offsetX; Painter.lastY = e.offsetY; Painter.mainCanvas.lineTo(Painter.lastX, Painter.lastY); Painter.mainCanvas.stroke(); Everything works well until I set the global Alpha to < 1. When using this method to draw, the end dot is also start dot. So the dot is drawn twice. And because we have transparent

Precise control over Androids VectorDrawable animations

折月煮酒 提交于 2019-11-28 17:36:18
UPDATE: Solution found! Scroll down for my accepted answer! I want to animate multiple elements of one image and link the animation to ViewPagers position (so multiple elements are morphing or flying in/out depending on the current page being dragged). So, is there a way to precisely control the current frame of the animation? For example let's assume i have this set: <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <objectAnimator android:interpolator="@android:anim/decelerate_interpolator" android:duration="800" android:propertyName=

Shift set of points in 3d

北战南征 提交于 2019-11-28 14:16:52
问题 I have a set of points in 3d. I form a line by joining these points. I have to obtain another line which is a shifted version of this line, such that the resultant shift is always to the right of the original line. What would be an approach to solve this problem? How to get the up vectors in the right direction each time? Assume these points to lie on a sphere. Looking at the top view of the sphere i would want something like this /\/\/\/\ /\/\/\/\ The first line is the original set of points

Drawing transform independent layout bounds in JavaFX

女生的网名这么多〃 提交于 2019-11-28 12:48:52
For a simple vector drawing app I am looking to implement a "Selection Box", that is a graphic representation of the layoutBounds of a Node. Example: example http://i61.tinypic.com/ou4p3t.png Thanks to jewelsea and his BoundsExample , I have a good understanding now on how to get the data for the box. The part I am struggling with is actually drawing the box on the scene, in a way that correctly respects the transformations on the nodes. Correctly in this case means the bounds logical size get scaled with a node, but the stroke of the selection box stays constant. Meaning a selection box

How to get the outline of a stroke? [duplicate]

风格不统一 提交于 2019-11-28 10:06:45
This question already has an answer here: svg: generate 'outline path' 3 answers I want to convert a stroked path to a filled object. (Programmatically, in JavaScript.) The line is just a simple curved line, a sequence of coordinates. I can render this line as a path, and give it a stroke of a certain thickness... but I'm trying to get a filled shape rather than a stroked line, so that I can do further modifications on it, such as warping it, so the resulting 'stroke' might vary in thickness or have custom bits cut out of it (neither of these things are possible with a real SVG stroke, as far

How are filled paths rendered?

时光毁灭记忆、已成空白 提交于 2019-11-28 08:40:08
问题 What are the standard algorithms used in vector graphics for rendering filled paths? I'm not only interested in the process of rendering strokes, I also would like to know how the shapes are filled - how it is determined if given point is inside or outside the path (I believe even specifying the rules of what inside and outside mean is not a straightforward thing). 回答1: find outline (perimeter as polygon) this I think you already have triangulate (or cut to convex polygons) there are many

How to outline a vector drawable?

早过忘川 提交于 2019-11-28 05:10:45
问题 In my app I allow user to set background color and images. So to make sure that all necessary information and icons are visible, I use text with shadow of different color. It is easy to set it by setting shadow properties in xml. However, I could not find a way to draw outline on vector drawable. I found similar questions however the answers are more or less drawing rectangular or square background with shadow. That makes it look too ugly in my case. I want to outline the shape instead of