I have a multithreaded application, in which I’m trying to render with different threads. DON’T!!! You will gain nothing from trying to multithread your renderer. Basically you’re running into one large race condition and the driver will just be busy synchronizing the threads to somehow make sense of it. To gain best rendering performance keep … Read more
Google has open sourced its excellent PDF rendering engine – PDFium – that it wrote with Foxit Software. There is a C# nuget package called PdfiumViewer which gives a C# wrapper around PDFium and allows PDFs to be displayed and printed. I have used it and was very impressed with the quality of the rendering. … Read more
These are the correct version that you can add in your build.gradle according to the API needs. API 24: implementation ‘com.android.support:appcompat-v7:24.2.1’ implementation ‘com.android.support:recyclerview-v7:24.2.1’ API 25: implementation ‘com.android.support:appcompat-v7:25.4.0’ implementation ‘com.android.support:recyclerview-v7:25.4.0’ API 26: implementation ‘com.android.support:appcompat-v7:26.1.0’ implementation ‘com.android.support:recyclerview-v7:26.1.0’ API 27: implementation ‘com.android.support:appcompat-v7:27.1.1’ implementation ‘com.android.support:recyclerview-v7:27.1.1’
Check your JAVA_HOME to use jdk 1.8 Also check : the parameter in Android Studio in order to change at File->Other Settings->Default Project Structure->SDKs
Here is what I did using cairosvg: from cairosvg import svg2png svg_code = “”” <svg xmlns=”http://www.w3.org/2000/svg” width=”24″ height=”24″ viewBox=”0 0 24 24″ fill=”none” stroke=”#000″ stroke-width=”2″ stroke-linecap=”round” stroke-linejoin=”round”> <circle cx=”12″ cy=”12″ r=”10″/> <line x1=”12″ y1=”8″ x2=”12″ y2=”12″/> <line x1=”12″ y1=”16″ x2=”12″ y2=”16″/> </svg> “”” svg2png(bytestring=svg_code,write_to=’output.png’) And it works like a charm! See more: cairosvg document
File types that use separate indices for vertices and normals do not match to the OpenGL vertex model very directly. As you noticed, OpenGL uses a single set of indices. What you need to do is create an OpenGL vertex for each unique (vertex index, normal index) pair in your input. That takes a little … Read more
I guess you can use setItemDelegate method of the treeview to setup custom painter for your treeview items. In the delegate’s paint method you can use QTextDocument to load item’s text as html and render it. Please check if an example below would work for you: treeview initialization: … // create simple model for a … Read more
For starters I would use 4D -> 3D projection instead of cut by hyperplane. The result is not the same but will get you closer to your goal (so you can latter upgrade this to cut). So similarly like in 3D -> 2D conversions used in graphics you got 2 choices one is using perspective … Read more
For those whose problem has not been solved; try this solution: Set the global environment variable “J2D_D3D” to “false” inside the OS. According to Sun, this setting is used to turn off the Java 2D system’s use of Direct3D in Java 1.4.1_02 and later. ie: simply create a environmental variable with name “J2D_D3D” and value … Read more
NewTest extends JPanel; but because you’re not painting every pixel on each call to paintComponent(), you need to invoke the super-class’s method and erase the old drawing: @Override protected void paintComponent(Graphics g) { super.paintComponent(g); int width = this.getWidth(); int height = this.getHeight(); g.setColor(Color.black); g.fillRect(0, 0, width, height); … } Addendum: As you note, setting the … Read more