Bitmap Pic Images; Table 14.12: Data Object For A Pic - Texas Instruments TI-89 Developer's Manual

156
Description
Graph 2 Table Flags (not included if 3D mode)
Graph 2 tblStart (not included if 3D mode)
Graph 2 tbl (not included if 3D mode)
Graph 2 tblInput (including length [2 bytes] — may be zero) (not included if
3D mode)
GDB Tag
This field is only present in a two graph mode graph database (i.e., Number of Graphs is
equal to 2).
eye
system variables and are for internal use only (zscale was not present on the TI-92). The
system variable zscl is no longer used on the TI-89 / TI-92 Plus although it still exists for
compatibility with the TI-92.
Differential Equation mode was not available on the original TI-92.
TI-92 graph databases only contain the first four bytes of graph format data. The TI-92 3D
mode style flag is not used by the TI-89 / TI-92 Plus, which uses the seventh byte for 3D style
information. TI-92 graph databases do not use the 3D Expanded View flag since that was not
available on the original TI-92.
14.8.

Bitmap PIC Images

Description
Data Length of PIC
Number of Rows in image
Number of Columns in image
Bitmap data (8 pixels per byte with the data bits going from most significant
to least significant which correspond to left to right pixels on the screen)
PIC_VAR_TAG
TI-89 / TI-92 Plus Developer Guide
Description
Table connected to trace (on = 1, off = 0)
Table Independent Ask (on = 1, off = 0)
Table 14.11: Data Object for a Graph Database
and ncontour are not present on the original TI-92. xscale, yscale, and zscale are not

Table 14.12: Data Object for a PIC

Not for Distribution
Chapter 14: Data Types
Bytes
1
Value
0x80
0x40
10
10
variable
1
(continued)
Bytes
2
2
2
variable
1
Beta Version January 26, 2001