kaleidoscope drawing app

123456789Ten - the the - in the[HTML canvas createimagedata create kaleidoscope effects] Canvas drawing properties Createimagedata Properties Explain and create kaleidoscope effects

thinking and then setting parameters, we can understand. The location of the reference point is located below. We succeeded in drawing the entire polygon, and we must know that the polygon is now made up of 16 triangles, except for the first triangle, the other 15 are all transformed copies, and therefore theoretically in an non-editable state. Its appearance panel and the layers Board present the status as shown below.

Use a simple drawing app to illustrate Android's graphics-processing class with its own view-defining application.For example, there is an app for users to draw and doodle at their own discretion.It's not so fancy here, it's only available in black and white. But it can change the thickness of the nib.Essentially the eraser here is a white brush, without using th

First, the Android side of the lagThe Android app is prone to lag during specific use, such as having a meal when viewing a page, a slow response after switching tabs, or a slow operation when it comes to sliding.Second, the reasons for the lagThere may be many reasons for the lag, such as:1. High CPU2. Memory Overflow3. Main thread processing IO operation, etc....Where over-drawn, is an easy to ignore but also best to modify and can see the effect of

supports the brush, such as spritevisual. Remember, be sure to set the object's Size property , because the default value is 0, otherwise it will not be displayed, here, I directly with an expression animation, let its size follow the size of the Canvas.This method is encapsulated so that it can be called in the appropriate place to draw the content, such as in the constructor of the page class. Public MainPage () { this. InitializeComponent (); drawsomethin

them, Nnibsize is what I call a dot pixel (100*100). An example would be clearer:* My device is 5.7inch, resolution is 1920*1080 (PX), calculate the device PPIThis is to get my device PPI. And my device was filed near the drawable? I debug my Code, I found 800*800 picture placed under-HDPI, get the size of the figure for 1467*1467, why this is the value. In the above code, I obtained a nearest pixel density, found that dm.density obtained a value of 2.75, that is, our 386 pixel density near the

(image:didFinishSavingWithError:contextInfo:), nil);}-(void) Image: (UIImage *) image didfinishsavingwitherror: (nserror *) error ContextInfo: (void *) ContextInfo{if (Error) {[Mbprogresshud showerror:@ "Save failed, please check if the app has access to the album"];} else {[Mbprogresshud showsuccess:@ "save Success"];}}8. Create a new class for Captureview(used to, only need to send in the required view)In the CaptureView.h+ (UIImage *) Captureimage

Drag a polygon from the toolbar, draw a hexagon, press and hold down the shortcut key to reduce the number of sides of the polygon, thus drawing a triangle, fill the color. Select a triangle with the selection tool to change the shape of the triangle by stretchingHover the cursor over the corner of the triangle, and an arc will rotate the moving triangle.Overlap The two triangles and place the inverted triangles at the top level. If the inverted trian

as the rectangle we were allow to draw on. * We do this to chache the bitmap so We don ' t need to * Recreate it each time draw () is called since it * Takes a few milliseconds. */ private void Generatepatternbitmap () { if (getbounds (). Width () 0 | | getbounds (). Height () 0) { return; } Mbitmap = Bitmap.createbitmap (GetBounds (). Width (), getbounds (). Height (), config.argb_8888); Canvas canvas = new Canvas (MBITMAP); Rect r = new Rect (); Boolean

; pathfigure> pathfigurecollection> pathgeometry.figures> pathgeometry> geometrygroup> path.data> Path> This picture took me a long time, I hope you will also draw, although the role is not small, but it is good to spend fun.I've probably added some markup on the graph, and the RectangleGeometry rect attribute has 2 va