Bridgetek FT801 - Page 228

FT800 Series Programmer Guide
Version 2.1
Document Reference No.: BRT_000030 Clearance No.: BRT#037
228
Product Page
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Rotating a 64 x 64 bitmap around its center:
cmd(BEGIN(BITMAPS));
cmd_loadidentity();
cmd_translate(65536 * 32, 65536 * 32);
cmd_rotate(90 * 65536 / 360);
cmd_translate(65536 * -32, 65536 * -
32);
cmd_setmatrix();
cmd(VERTEX2II(68, 28, 0, 0));