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@ -738,14 +738,18 @@ void GcodeSuite::G26() {
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/**
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/**
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* Pre-generate radius offset values at 30 degree intervals to reduce CPU load.
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* Pre-generate radius offset values at 30 degree intervals to reduce CPU load.
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*/
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*/
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#define A_INT 30
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#define A_CNT ((360 / 30) / 2) // must be a multiple of 2 for _COS() and _SIN() macro to work correctly!
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#define _ANGS (360 / A_INT)
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#define NEGATION_of_COS_TABLE(A) (((A + A_CNT * 16) % (A_CNT * 2)) >= A_CNT ? -1 : 1)
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#define A_CNT (_ANGS / 2)
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#define _COS(A) (trig_table[(A + A_CNT * 16) % A_CNT] * NEGATION_of_COS_TABLE(A))
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#define _IND(A) ((A + _ANGS * 8) % _ANGS)
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#define _SIN(A) (-_COS((A + A_CNT / 2) % (A_CNT * 2)))
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#define _COS(A) (trig_table[_IND(A) % A_CNT] * (_IND(A) >= A_CNT ? -1 : 1))
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#define _SIN(A) (-_COS((A + A_CNT / 2) % _ANGS))
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#if A_CNT & 1
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#error "A_CNT must be a positive value. Please change A_INT."
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#endif
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float trig_table[A_CNT];
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float trig_table[A_CNT];
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for (uint8_t i = 0; i < A_CNT; i++)
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for (uint8_t i = 0; i < A_CNT; i++)
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trig_table[i] = INTERSECTION_CIRCLE_RADIUS * cos(RADIANS(i * 30));
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trig_table[i] = INTERSECTION_CIRCLE_RADIUS * cos(RADIANS(i * A_INT));
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mesh_index_pair location;
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mesh_index_pair location;
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do {
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do {
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