Optimize calculate_volumetric_multiplier

2015-02-23 18:10:35 -08:00
parent 3ba47ea277
commit 0cf0c20532
1 changed files with 3 additions and 12 deletions
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -4695,18 +4695,9 @@ bool setTargetedHotend(int code){


 float calculate_volumetric_multiplier(float diameter) {
-	float area = .0;
-	float radius = .0;
-
-	radius = diameter * .5;
-	if (! volumetric_enabled || radius == 0) {
-		area = 1;
-	}
-	else {
-		area = M_PI * pow(radius, 2);
-	}
-
-	return 1.0 / area;
+	if (!volumetric_enabled || diameter == 0) return 1.0;
+  float d2 = diameter * 0.5;
+	return 1.0 / (M_PI * d2 * d2);
 }

 void calculate_volumetric_multipliers() {