Organization of chemical elements inalphabetical order by their names(orsymbols) doesn't tell us anything about their properties but it is useful when searching for an element. We can list elements inorder of increasing atomic numberbut it wouldn't be a periodic table any more. The periodic ta...
- you can discrete or arbitrary scaling map - performing group operation with selected features - changing the orders of displaying layers - switching in/off displaying os any layers - changing attributes of selected object ( recolour, modify outline thick, transparency, symbols) - adding...