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What is the fastest way to fill a rectangular area with a translucent ...


Jan 27, 2011 ... Java has two OpenGL modes: one is to enable Java2D on top of OpenGL (using the ... with a translucent color in Java? Simply using java.awt.Graphics.fillRect( new Color(100, 100, 100, 100)), for example, is not fast enough.

java - How to make a rectangle in Graphics in a transparent colour ...


int alpha = 127; // 50% transparent Color myColour = new Color(255, value, value, ... Tour Start here for a quick overview of the site · Help Center Detailed answers to any questions you might have .... Java Graphics - Shapes wont fill ... Stack Apps · Meta Stack Exchange · Area 51 · Stack Overflow Careers ...

Java Graphics2D transparent background - Stack Overflow


You can construct a Color object by specifying a transparency. For example the ... This way I can set the color of the background. ... have any effect), so I have drawn a rectangle with the given color to fill the canvas. ... Java is actually pretty good at this stuff, you can achieve transparency and much more.

Filling with transparency - Java Forums


Hello, What is the fastest way to fill a rectangle with a transparent color? Simply using java.awt.Graphics and java.awt.Color like this is not fast.

Stroking and Filling Graphics Primitives (The Java™ Tutorials > 2D ...


Java Tutorials lesson shows how to use the Graphics2D class to draw graphic primitives, ... Filling – is a process of painting the shape's interior with solid color or a color gradient, or a ... Dashed rounded rectangle ... The dash style defines the pattern of opaque and transparent sections applied along the length of the line.

Custom Graphics Programming - Java Programming Tutorial


The drawXxx() methods draw the outlines; while fillXxx() methods fill the internal. ... void clearRect(int x, int y, int width, int height) // Clear the rectangular area to background ... Using AWT's Graphics and Color import java.awt.event. .... float g, float b, float alpha); // between 0.0f and 1.0f // alpha of 0 for totally tran...

Graphics (Java Platform SE 7 ) - Oracle Help Center


All rendering operations modify only pixels which lie within the area bounded ... Clears the specified rectangle by filling it with the background color of the current ...... Transparent pixels in the image do not affect whatever pixels are already there. .... This method may use an algorithm that calculates a result quickly but which ...

GreenfootImage (Greenfoot API)


... int height). Create an empty (transparent) image with the specified size. ... Fill an oval bounded by the specified rectangle with the current drawing color. ... java .awt.Color, getColorAt(int x, int y). Return the color at the given pixel. java.awt. .... The resulting rectangle covers an area width pixels wide by height pixels tall...

How to Draw Transparently in JavaFX - For Dummies


JavaFX lets you create partially transparent colors by setting an opacity value ... There are several ways to do that, but the easiest is to use one of the several static ... As a result, you can see the first rectangle behind the other two rectangles. ... The Difference between Views and Editors in Eclipse IDE for Java Development.

25 life-saving tips for Processing | Amnon P5 - Experiments with ...


Jan 28, 2012 ... There are many ways in Processing and/or Java to create a timestamp. One way ... For these cases, you can use a semi-transparent rectangle.

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Color \ Processing.org


In the digital world, when we want to talk about a color, precision is required. ... Imagine if we had eight bits (one byte) in sequence—how many ways can we ... the interior of a shape (fill) to grey rect(50,50,75,100); // Drawing the rectangle ... Alpha values also range from 0 to 255, with 0 being completely transparent (i.e., 0% ...

Blending Colors with AlphaComposite (Java Foundation Classes)


Another Java 2D attribute, the Composite object, controls the way in which the colors being ... When a line is drawn, a shape is filled, or an image is rendered, that item totally ... An image is always represented as a rectangular array of pixels . ... To allow this, some image formats support the notion of a transparent color.

Transparent Drawing | Java 2D: Graphics in Java 2 | InformIT


Apr 12, 2002 ... Java 2D permits you to assign transparency (alpha) values to drawing ... setPaint (Color.blue); g2d.fill(blueSquare); Color color = new Color(1, 0, 0, ... offset=20, deltaX=gap+width+offset; private Rectangle blueSquare = new ...