This tool can be used to append multiple vectors into a single shapefile. It is therefore similar to the Union, with the difference being that the Union tool
The following is an example of a Python script using this tool:
wd = pluginHost.getWorkingDirectory()
# You may have multiple input shapefiles but they must
# be separated by semicolons in the string.
inputFiles = wd + "input1.shp" + ";" + wd + "input2.shp"
outputFile = wd + "tmp1.shp"
args = [inputFiles, outputFile]
pluginHost.runPlugin("Append", args, False)
This is a Groovy script also using this tool:
def wd = pluginHost.getWorkingDirectory()
// You may have multiple input shapefiles but they must
// be separated by semicolons in the string.
def inputFiles = wd + "input1.shp" + ";" + wd + "input2.shp"
def outputFile = wd + "tmp1.shp"
String[] args = [inputFiles, outputFile]
pluginHost.runPlugin("Append", args, false)