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In B4A the DrawBitmap method has a SourceRectangle parameter to draw a part of the source bitmap. In B4i the SourceRectangle parameter is missing. Same for DrawBitmapRotated. Is this an iOS limitation ?...
link: Please start a new thread for this in the questions forum....
link: NewImage As Bitmap = bmp.RunMethod("createBitmap", Array(original, 0, 0, original.Width...

drawing features. Background At its core BC holds an array of bytes that represent an image...) bc.DrawLine(0, 0, bc.mWidth, bc.mHeight, 0xff0000ff, 5dip) Activity.SetBackgroundImage(bc...
link: A custom view that uses the async drawing methods: https://www.b4x.com/android/forum/threads...
link: Yess....
link: BCBrush.IsSolidColor = False 'IsSolidColor is used internally for optimizations. BCBrush.BlendAl...

Sub Name: DrawRoundBitmap Description: This code uses Path object to draw a round bitmap... As Canvas = CreateBitmap DrawRoundBitmap(cvs, LoadBitmap(File.DirAssets, "1.jpg")) Activity.SetBackgroundImage(cvs.Bitmap) End Sub Sub CreateBitmap As Canvas Dim bmp As Bitmap bmp....ClipPath(p) Return cvs End Sub Sub DrawRoundBitmap (cvs As Canvas, bmp As Bitmap) Dim r As Rect r.Initialize(0, 0, cvs.Bitmap.Width, cvs.Bitmap.Height) cvs.DrawBitmap(bmp, Null, r) End...

an image. 2. Platform specific code that efficiently creates a regular bitmap from the bytes array data... from a different BitmapCreator to this BitmapCreator. - Methods to draw a bitmap or a different BitmapCreator to this BitmapCreator. - Method to draw gradients. - And a few other methods. Scaling 1... for the transparency to have its expected effect. This is called blending. When you call DrawBitmap or DrawBitmapCreator you can choose whether to skip blending or not. It is significantly faster to...

BitmapCreator lacks some important instructions on Canvas. Sometimes switching from BitmapCreator... with BitmapCreator. I started writing some divers, if someone finds a way to improve it or add other...
link: Edit: BitmapCreator was updated with many drawing methods: https://www.b4x.com/android/forum...
link: Draw Bitmap to Trapezoid Form 69152 We normally draw the images into rectangles and save them in...
link: I updated post#3 and add procedure in post#5...

hi i am making some test and i noticed that using DrawBitmapRotated with b4x canvas object is much much slower than DrawBitmap but why? what is the difference between both methods? why is drawing...
link: is there a way to improve it? No....
link: Because the image data is stored and decoded in scanline order it is quicker to draw it to...
link: Because the image data is stored and decoded in scanline order it is quicker to draw it to a bitmap...

hi can i draw a bitmap via canvas with alpha 100 for example? thanx...
link: they are the same size mCanvas.drawBitmap(mBitmap, null, mDstRect, paint); } ...
link: you could read a pixel alter the alpha and store it again but that would be way too slow. there mig...
link: sure, it will copy alpha levels if it has any (png) i mean i have a bitmap already and i want to...

Hi all, in one of my libraries I wrote I've this line: cvs.DrawImage2(img, 0, 0, W, H, 0, 0, W....DrawImage2(img, 0, 0, W, H, 0, 0, W, H) End Sub ..... and here is the log with 20000x200 image...
link: ) bc2.DrawBitmapCreator(bc1, rr, dx, dy, False) dx = dx + wg...
link: moment. ;) I'm here to manage with BitmapCreator, FileChooser, canvas ans some things, but for...
link: , your input image file is a JPG file. The tool that @kimstudio created saves the output as a PNG file...

/ BitmapCreator v4.30 was released: https://www.b4x.com/android/forum/threads/b4x-xui2d-box2d-game-engine.95208 This version adds several new drawing methods: DrawLine, DrawRect and DrawCircle. https://www.b4x.com/basic4android/images/SS-2018-10-11_14.48.12.png Drawings are antialiased and with good performance. The main advantage of drawing with BitmapCreator directly is that the conversion: Canvas -> Bitmap -> BitmapCreator is not needed. This can save precious time inside the game...

As BitmapCreator Dim scale As Float = 100dip / 100 bc.Initialize(ImageView1.Width / scale...) ImageView1.SetBitmap(bc.Bitmap) ...Currently BitmapCreator supports linear and cubic gradients. This sub creates a radial gradient: https://www.b4x.com/basic4android/images/SS-2018-05-10_12.06.58.png Public Sub FillRadialGradient (bc As BitmapCreator, GradColors() As Int, Rect As B4XRect) Dim RGBColor(GradColors.Length...