GdalToolsWidget 0 0 520 172 0 0 Contour &Input file (raster) selectInputFileButton 0 0 true QComboBox::NoInsert Select... &Output directory for contour lines (shapefile) selectOutputDirButton 100 0 Select... I&nterval between contour lines intervalDSpinBox 0 0 2140000000.000000000000000 &Attribute name 8 If not provided, no elevation attribute is attached. 16 ELEV Qt::Vertical QSizePolicy::Minimum 20 0