C.10.5.1.3.8 Ruler

For the Compound Graphic Type (0070,0294) RULER, exactly two points shall be present inside the Graphic Data (0070,0022) defining the ruler line.

Tick Alignment (0070,0274) defines the alignment of the ticks.

BOTTOM - ticks are aligned to the lower part of the line, where the first point of the line is on the left and the line extends horizontally to the right.

CENTER - ticks are centered on the line.

TOP - ticks are aligned to the upper part of the line, where the first point of the line is on the left and the line extends horizontally to the right.

Tick Label Alignment (0070,0279) defines the alignment of the tick labels.

BOTTOM - labels are aligned to the lower part of the line, where the first point of the line is on the left and the line extends horizontally to the right.

TOP - labels are aligned to the upper part of the line, where the first point of the line is on the left and the line extends horizontally to the right.

The presence, labeling and units of the ticks on the line is application dependent (see Figure C.10.5-7). If present as numerical values, the labels of the ticks shall increase toward the second point.