shape

I have the image of an open curve in a numpy array and I need to build a list of points coordinates ordered according to their position on the curve. I wrote a draft script using numpy and mahotas. It may not be optimal. I know that OpenCV can do this for a closed curve. Can OpenCV do the same (faster) with an open curve? For example, if the original curve is: [[0 0 0 0 0 0 0] [0 1 0 0 1 0 0] [0 0 1 0 0 1 0] [0 0 0 1 1 0 0] [0 0 0 0 0 0 0]] Using np.where(myarray==1) , I can get the indices of the pixels: (array([1, 1, 2, 2, 3, 3]), array([1, 4, 2, 5, 3, 4])) But this not what I need. My

I've created ~2500 meshes and use an algorithm defining the color of each mesh. The algorithm goes through all meshes and adds a value depending on the distance it has to each "red-start" point. The value then decides what the color should be. This is the result: It is lagging and the corners aren't smooth. I want to recreate the same color result in some other way but can't figure out how. How can you do it with THREE.Shape and FragmentShader? Final Goal Description: Using one, for increase in FPS, mesh (THREE.Shape) that defines the area which is to be colored. Be able to insert X amount of

I have this LinearLayout: <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"> <ImageView android:layout_width="100dp" android:layout_height="70dp" android:src="@drawable/ic_launcher" android:scaleType="centerCrop"/> <TextView android:layout_width="100dp" android:layout_height="30dp" android:background="#FFD800" android:textColor="@android:color/black" android:gravity="center" android:text="Text View"/> </LinearLayout> And I want to mask it with rounded corner, like this: I tried to put it in a FrameLayout with another layout

how can I create rectangle shape by using two different colors with shadow? like above image. Please create a drawable file and put the below code in it. <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item> <shape android:shape="rectangle" > <size android:height="20dp" /> <solid android:color="#F66D08" /> </shape> </item> <item android:top="50dp"> <shape android:shape="rectangle" > <gradient android:endColor="#AD1B1D" android:startColor="#E2360A" android:angle="270" /> </shape> </item> </layer-list> layer-list can be used to

I'm trying to have a circle background for my TextView, so I created a shape style as below. But I need to have multiple colors with multiple sizes (while the textSize stays constant), so I need to set the width/height in the style. From my understanding.. Layer List puts all the shapes on top of one another? Because I need to call it 12 times at different places, so it seems quite cumbersome to have 12 shape style xmls. Is there a better way to have all the different shape/size combinations inside one XML? Shape Style: <shape xmlns:android="http://schemas.android.com/apk/res/android" android

How to move circle with mouse in delphi? circle:Shape; Be sure to convert the Mouse X,Y client coordinates that you get from MouseMove on your Control to the Parent's client using ClientToScreen and ScreenToClient . The following procedure moves the center of a Control to the point (X,Y) in it's client coordinates: procedure MoveControl(AControl: TControl; const X, Y: Integer); var lPoint: TPoint; begin lPoint := AControl.Parent.ScreenToClient(AControl.ClientToScreen(Point(X, Y))); AControl.Left := lPoint.X - AControl.Width div 2; AControl.Top := lPoint.Y - AControl.Height div 2; end; Now to

I'm using ellipses and other shapes as onscreen markers, I would like others to be able to change these visuals using templates. However, as shape doesn't support templating I'm forced to create a basic UserControl, which defaults to show an ellipse, and then use that instead of the basic shape. Has anyone got a neater solution? I'm a little concerned if I create 1000's of these onscreen that performance/memory will be a bit of an overhead. UserControl derives from ContentControl . It doesn't sounds as though you need content (the ability to host additional controls inside your shape), so I'd

Here is a simplified description: Imagine that I'm given a View class that draws a picture of a wall and I want to draw it with a window cut out. Assume that I extend that View class and override its dispatchDraw() method to do the following. First draw the background if any to be seen through the window. Next I want to mask out the rectangular window region somehow and then call super.dispatchDraw(). Finally I want to remove the mask and draw a person standing at the window so that they are painted over both the background and the wall. How can I do this? Here is some code that seems close to