The module openpyxl is a convenient tool for users to process data in an excel table. But it’s not build-in, we need to download the module manually after that developer can import and use it. The following code snippet shows how to read data in excel file with openpyxl. import Read more…
Download image files from website with Python.The module request can help us to fetch contents of web page, we can use BeautifulSoup to parse the html string and collect all interesting elements, download images by relevant URLs which are filtered by our script. import requests, sys, webbrowser, bs4, urllib if Read more…
vtkImageActor vtkImageActor is used to display picture in 3D render window. By changing the interactor to a vtkInteractorStyleImage you can limit rotations so that user can operate the 3D render window as a 2D image viewer. python code: import vtk fileName = “/Users/weiyang/Desktop/Untitled.png” reader = vtk.vtkPNGReader() reader.SetFileName( fileName ) reader.Update() Read more…
Open An URL On A New Browser Tab We need to import the module web browser to open a browser tab to read the HTML page. import webbrowser if __name__ == “__main__”: webbrowser.open( ‘https://www.weiy.city’ ) Download Web Page As Text We can download the web page and write the content Read more…
vtkBoxWidget2 shows a bounding box outline, the face of the box can be picked and moved to scale the object inside the bounding box. After rotating, translating, and scaling, we can ensure the inside item change shape and position with the box widget. It sounds so good that user can Read more…
The log file is important for the developer to debug, it also ensures that the user will not be distracted by program message. Python provides module logging to help developers to complete the task conveniently, we can set customized format and different log levels for it. Developers can also turn Read more…
The article shows a few kinds of widgets which are used to measure the distance between two points, angle between two rays, and the bidimensional length of an object. Distance Measure The Distance On 2D Model We need vtkDistanceWidget, vtkDistanceRepresentation2D and vtkPointHandleRepresentation2D to help us to calculate the distance between Read more…
Emperor Ku is the grandson of Huangdi, he was smart and could speak when he was a child, the man had excellent character and was good at handling life affairs. Ku was chosen as an assistant by the Emperor Huangdi when he was only 15 years old, he became the Read more…
We want to put points on the three-dimensional model sometimes, it’s better if these control points can be moved around the item and project generates a new interpolation line dynamically. VTK provides a tool for us to do it easily. The following content shows two scenarios about point placer, both Read more…