Texas Instruments TI-89 User Manual - Page 857
PtText, PxlChg, PxlCrcl, PxlHorz, PxlLine
UPC - 033317196326
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PtText CATALOG PtText string, x, y Displays the Graph screen and places the character string string on the screen at the pixel nearest the specified (x, y) window coordinates. string is positioned with the upper-left corner of its first character at the coordinates. PtText "sample",3,5 ¸ PxlChg CATALOG PxlChg row, col PxlChg rowList, colList Displays the Graph screen and reverses the pixel at pixel coordinates (row, col). Note: Regraphing erases all drawn items. PxlChg 2,4 ¸ PxlCrcl CATALOG PxlCrcl row, col, r [, drawMode] Displays the Graph screen and draws a circle centered at pixel coordinates (row, col) with a radius of r pixels. If drawMode = 1, draws the circle (default). If drawMode = 0, turns off the circle. If drawMode = -1, inverts pixels along the circle. Note: Regraphing erases all drawn items. See also Circle. PxlCrcl 40,80,30,1 ¸ PxlHorz CATALOG PxlHorz row [, drawMode] PxlHorz 25,1 ¸ Displays the Graph screen and draws a horizontal line at pixel position row. If drawMode = 1, draws the line (default). If drawMode = 0, turns off the line. If drawMode = -1, turns a line that is on to off or off to on (inverts pixels along the line). Note: Regraphing erases all drawn items. See also LineHorz. PxlLine CATALOG PxlLine rowStart, colStart, rowEnd, colEnd [, drawMode] Displays the Graph screen and draws a line between pixel coordinates (rowStart, colStart) and (rowEnd, colEnd), including both endpoints. If drawMode = 1, draws the line (default). If drawMode = 0, turns off the line. If drawMode = -1, turns a line that is on to off or off to on (inverts pixels along the line). Note: Regraphing erases all drawn items. See also Line. PxlLine 50,15,20,90,1 ¸ Appendix A: Functions and Instructions 857