You can write Python scripts using PyQGIS in the Python console to automate various tasks, such as data processing, layer styling, map rendering, and more. By chaining commands and utilizing loops and conditions, you can automate repetitive tasks. Here are some examples of tasks you can automat...
5. Selecting Features by Attribute A script to select features based on a specified attribute and value. ##Select_By_Attribute=name ##Input_layer=vector ##Field_name=field Input_layer ##Field_value=string layer = processing.getObject(Input_layer) layer.selectByExpression('"{}"=\'{}\''.fo...
Mesh: Select mesh elements by existing geometries Mesh: Select mesh elements by expression Mesh: Transform single vertex Mesh: Reindex/ renumber mesh layer Mesh: Force mesh by polylines Mesh: Mesh transform by expression Rendering: Allow using physical DPI for map canvas Rendering: Data defined ras...
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As you can see in the following screenshot, the plugin lets you choose from the most common ones (Comma, Tab, and so on), but you can also specify any other plain or regular expression delimiter. If your CSV contains quotation marks such as " or ', you can use the Quote option to...
expression = expression.replace(str(fields[k].name()), str(attr.toString()))try: result = eval(expression)exceptException:raiseGeoAlgorithmExecutionException("Problem evaluation formula: Wrong field values or formula") nElement +=1inGeom = inFeat.geometry() ...
Overall, ArcGIS Pro has made large strides forward in remote sensing. One of the biggest improvements in ArcGIS Pro is “interactivity“. What I mean by this is its image classification wizard. It’s an underrated addition that gives you a sneak preview and allows you to tweak parameters befo...
You can symbolize multiple fields in QGIS using the “set column expression” or “rule-based expression”. But in ArcGIS, it’s fast, easy, and intuitive using unique values, andmany fields. Dot density maps and stacked charts are unique qualities of ArcMap. ...
Nearly every property can be defined with an expression or field value giving you more control over the label result. Expressions can refer to a field (e.g. set the font size to the value of the field 'font') or can include more complex logic. Examples of bindable properties include: ...
Nearly every property can be defined with an expression or field value giving you more control over the label result. Expressions can refer to a field (e.g. set the font size to the value of the field 'font') or can include more complex logic. Examples of bindable properties include: ...