Graph Mode Specifications - Tektronix 4010 Maintenance Manual

Characteristics-4010 Maintenance
TABLE 2-3
Graph Mode Specification
Mode Function
Display graphic information.
Mode Commanded By
ASCII GS.
Mode Ended By ASCII US, CR, ESC FF, ESC SUB, or keyboard entry of PAGE or RESET.
Basic Unit of Measurement
Point (Tekpoint).
Address Capability 1024X by 1024Y points.
Display Capability 1024X by 780Y points.
Display Address Orientation 0,0 at bottom-left of display; 1023X, 780Y at top-right.
Display Area 19.1 cm by 14.3 cm (7.5 x 6.525 inches).
Vector Length Error Does not exceed 1 % of actual vector length.
Vector Writing Time 2.6 ms.
Vector Dynamic Geometry Error
Deviation from mean straight line does not exceed 1.5% worst case (45
0
line).
Display Scale Factor Approximately 0.18 mm (.07 inch) point center to point center (approximately
54.5 points per cm or 139 points per inch).
Dark Vectors
First vector to follow a GS is unwritten. GS can be repeated at any time. Second
vector following GS, and all subsequent vectors, are written.
Viewing Time Indefinite-Hold Status is inhibited. (Terminal should not be kept in Graph
Mode when not in use.)
Vector Drawing Commands
See Tables 2-4 and 2-5.
Wraparound Enabled.
Margin Disabled.
Graph Mode Memory First three bytes of last Graph Mode address are remembered when the Terminal
is switched out of Graph Mode. Terminal requires only the Low X byte to return
to its last graphic address when switched back to Graph Mode.
2-10
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