Manipulating symbols and other grouped entities in a landscape drawing is made much easier if the symbol has an appropriate base point. It is not uncommon for blocks to be made with incorrectly located base points and that often makes rotation difficult. We show how to redefine a block and reset the base point thus making editing a drawing more efficient.
Once the base point is correctly positioned, operations such as rotate and move are made much easier.
We have made the base point of the majority of species symbols in the gCADPlus library coordinate 0,0 located in the middle of the symbol. The blue handle shown on two symbols below cab be used to move or rotate the symbol.