IC Python API:File Path

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Main article: RL Python Samples.

Oftentimes, you'll need to handle external files in the form of loading, writing and reading. This article will go over doing just that with Python scripting.

Required Modules

Besides the rudimentary Reallusion Python API, we'll need to use Qtwidgets to build our user interface and shiboken2 to convert the dialog window to something Python can understand.

import RLPy
from PySide2 import QtWidgets
from PySide2.shiboken2 import wrapInstance

User Interface

Ic python api file path 01.png

We'll need to create a user interface with a line at the top that shows the directory location, a button for opening the file browse dialog, and a text input to display the contents of the file.

window = RLPy.RUi.CreateRDialog()
window.SetWindowTitle("Python Path & File")
dialog = wrapInstance(int(window.GetWindow()), QtWidgets.QDialog)
dialog.setFixedWidth(500)

layout = QtWidgets.QHBoxLayout()
dialog.layout().addLayout(layout)

pathText = QtWidgets.QPlainTextEdit(readOnly=True, maximumHeight=25)
contentText = QtWidgets.QPlainTextEdit(minimumHeight=250)
button = QtWidgets.QPushButton("....", minimumHeight=25, minimumWidth=25)

layout.addWidget(pathText)
layout.addWidget(button)
dialog.layout().addWidget(contentText)

File Dialog Request

Next we'll need a definition for the file dialog procedure to populate the directory field and the contents text field.

def open_file():
    file_dialog = QtWidgets.QFileDialog()
    file_dialog.setNameFilter("*.py")
    file_dialog.exec()

    if(len(file_dialog.selectedFiles()) > 0):
        pathText.setPlainText(file_dialog.selectedFiles()[0])
        f = open(file_dialog.selectedFiles()[0], "r")
        contentText.setPlainText(f.read())
        f.close()


button.clicked.connect(open_file)

window.Show()
  • File request dialog is a standard Window's file browser. Notice that we are restricting the search to .py files with the filter attribute.
  • The top field is populated with the file location and the bottom field for the contents of the file.

Everything Put Together

You can copy and paste the following code into a PY file and load it into iClone via Script > Load Python.

import RLPy
from PySide2 import QtWidgets
from PySide2.shiboken2 import wrapInstance

window = RLPy.RUi.CreateRDialog()
window.SetWindowTitle("Python Path & File")
dialog = wrapInstance(int(window.GetWindow()), QtWidgets.QDialog)
dialog.setFixedWidth(500)

layout = QtWidgets.QHBoxLayout()
dialog.layout().addLayout(layout)

pathText = QtWidgets.QPlainTextEdit(readOnly=True, maximumHeight=25)
contentText = QtWidgets.QPlainTextEdit(minimumHeight=250)
button = QtWidgets.QPushButton("....", minimumHeight=25, minimumWidth=25)

layout.addWidget(pathText)
layout.addWidget(button)
dialog.layout().addWidget(contentText)


def open_file():
    file_dialog = QtWidgets.QFileDialog()
    file_dialog.setNameFilter("*.py")
    file_dialog.exec()

    if(len(file_dialog.selectedFiles()) > 0):
        pathText.setPlainText(file_dialog.selectedFiles()[0])
        f = open(file_dialog.selectedFiles()[0], "r")
        contentText.setPlainText(f.read())
        f.close()


button.clicked.connect(open_file)

window.Show()

APIs Used

You can research the following references for the APIs deployed in this code.