To build a picture, HPLOT uses the following normalization
transformations:
- NT=1
- Defines a coordinate system in centimeters. It
is used to define the picture size. normalization transformation 1 must be
selected to draw text on the picture.
- NT=10,20,...
- Used to draw pictures into zones. The
coordinate system corresponds to histogram coordinates.
HIGZ routine ISELNT can be used to select one normalization transformation
by the call:
CALL ISELNT(NT)
If ZONE 2 2 is active, If ZONE 1 1 is active,
then:
############################## +----------------------------+
############################## | |
| +-----------+ +----------+ | | +--------------------+ |
| | | | | | | | | |
| | NT=10 | | NT=20 | | | | | |
| | | | | | | | | |
| +-----------+ +----------+ | | | NT=10 | |
| +-----------+ +----------+ | | | | |
| | | | | | | | | |
| | NT=30 | | NT=40 | | | | | |
| | | | | | | +--------------------+ |
| +-----------+ +----------+ | | |
| NT=1 | | NT=1 |
+----------------------------+ then: +----------------------------+