We can get Euler angles about rotation from vtkTransform::GetOrientation.The three float numbers can be regarded as a representation of vector(1, 1, 1). But you can ignore its length to calculate the orientation expression in the target coordinate system.The following image shows rotation events about Z, X, and Y axis. Then we Read more…
The interface vtkTransform::GetOrientation returns Euler angles to describes the orientation of a rigid body.The order of rotation axes in this process is Z, X, Y, but the solving sequence in the interface code is reversed.The implementation details about the interface are here. (from VTK8.2.0) We can write a test program to use Euler angles Read more…
We modified the web app images viewer to show the chosen image in real time. An new label at the left-top corner will shows the name of chosen image. Demo video (please pay attentation to the left-top corner) Related post:
Here are our files in project: Add a simple C function in lib.c: Get wasm without glue js file Download the wasm file and use the interface in html Result:
Here are some folders which contain json files.These json files have a version value, just look like the following image. We will increase this number by 10 for every json file in current folders recursively.Install command line tool jq to modify json file easily.Ubuntu: sudo apt-get install jqWindows: just download exe on the Read more…
Just a few days after the school started, a shocking incident in Changsha, China, left countless parents terrified. A male teacher used a protractor to shatter a female student’s skull, causing her brain to be exposed. The girl took several days to regain consciousness. What’s even more despairing is that Read more…
The function insert of std::map would fail if the key equivalent to the one of an element already in the container.when it happens, the new element is not inserted, and return an iterator to this existing element. Demo: The update can be done successfully if we use operator [] for Read more…
We have created an e-book titled “Speed Reading Classics,” which enables rapid reading of various classic literary works. The latest chapter features the Chinese modern novel “Camel Xiangzi,” written by Lao She. It was serialized in magazines from 1936 to 1937 and first published as a standalone book in 1939. Read more…
We had written some books and uploaded them. The relative page is These books are produced using gitbook technology, we will update them continuously.