Rounding Problem

tgfuellner · tgfuellner · commit bb93316ff56d · 2011-07-12T18:57:04.000+02:00
Showed up when using a stepper with only 48 steps per revolution
diff --git a/StepperModel.cpp b/StepperModel.cpp
@@ -49,14 +49,14 @@ StepperModel::StepperModel(int inDirPin, int inStepPin, int inEnablePin, int inE
   currentStepcount=0;
   targetStepcount=0;
 
-  steps_per_mm = (int)(kStepsPerRevolution/(45.*M_PI))*kMicroStepping; // default value for a "normal" egg (45 mm diameter)
+  steps_per_mm = (int)((kStepsPerRevolution/(45.*M_PI))*kMicroStepping+0.5); // default value for a "normal" egg (45 mm diameter)
   enableStepper(false);
 }
 
 void StepperModel::resetSteppersForObjectDiameter(double diameter)
 {
   // Calculate the motor steps required to move per mm.
-  steps_per_mm = (int)(kStepsPerRevolution/(diameter*M_PI))*kMicroStepping;
+  steps_per_mm = (int)((kStepsPerRevolution/(diameter*M_PI))*kMicroStepping+0.5);
   if(endStopPin>=0)
   {
 #ifdef AUTO_HOMING

Original file line number	Diff line number	Diff line change
`@@ -49,14 +49,14 @@ StepperModel::StepperModel(int inDirPin, int inStepPin, int inEnablePin, int inE`
`49`	`49`	`currentStepcount=0;`
`50`	`50`	`targetStepcount=0;`
`51`	`51`
`52`		`- steps_per_mm = (int)(kStepsPerRevolution/(45.M_PI))kMicroStepping; // default value for a "normal" egg (45 mm diameter)`
	`52`	`+ steps_per_mm = (int)((kStepsPerRevolution/(45.M_PI))kMicroStepping+0.5); // default value for a "normal" egg (45 mm diameter)`
`53`	`53`	`enableStepper(false);`
`54`	`54`	`}`
`55`	`55`
`56`	`56`	`void StepperModel::resetSteppersForObjectDiameter(double diameter)`
`57`	`57`	`{`
`58`	`58`	`// Calculate the motor steps required to move per mm.`
`59`		`- steps_per_mm = (int)(kStepsPerRevolution/(diameterM_PI))kMicroStepping;`
	`59`	`+ steps_per_mm = (int)((kStepsPerRevolution/(diameterM_PI))kMicroStepping+0.5);`
`60`	`60`	`if(endStopPin>=0)`
`61`	`61`	`{`
`62`	`62`	`#ifdef AUTO_HOMING`