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QGIS Python Programming Cookbook, Second Edition

You're reading from   QGIS Python Programming Cookbook, Second Edition Automating geospatial development

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781787124837
Length 464 pages
Edition 2nd Edition
Languages
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Author (1):
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Joel Lawhead Joel Lawhead
Author Profile Icon Joel Lawhead
Joel Lawhead
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Table of Contents (10) Chapters Close

Preface 1. Automating QGIS FREE CHAPTER 2. Querying Vector Data 3. Editing Vector Data 4. Using Raster Data 5. Creating Dynamic Maps 6. Composing Static Maps 7. Interacting with the User 8. QGIS Workflows 9. Other Tips and Tricks

Creating a simple text input dialog

In this recipe, we'll demonstrate one of the simplest methods used for accepting input from a user: a text input dialog.

Getting ready

Open the QGIS Python console by selecting the Plugins menu and then clicking on Python Console.

How to do it...

In this recipe, we will initialize the dialog and then configure its title and label. We'll set the editing mode and the default text. When you click on the OK button, the text will be printed to the Python Console. To do this, we need to perform the following steps:

  1. First, we need to import the GUI library:
            from PyQt4.QtGui import * 
    
  2. Next, we initialize the dialog:
            qid = QInputDialog() 
    
  3. Now, we set the window's title, label text, editing mode, and default text:
            title = "Enter Your Name" 
            label = "Name: " 
            mode = QLineEdit.Normal 
            default = "<your name here>" 
    
  4. We configure the dialog while capturing the user input and the...
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