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Setting a minimum # interpolations for displaying an arc.

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This commit is contained in:
Markus Lampert 2017-01-01 22:41:28 -08:00
parent 164b94c8fa
commit d51188bd07
1 changed files with 5 additions and 1 deletions
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6
src/Mod/Path/Gui/ViewProviderPath.cpp
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@ -52,6 +52,9 @@
#include <Gui/BitmapFactory.h>
#include <Gui/SoFCBoundingBox.h>
#define ARC_MIN_SEGMENTS 20.0 // minimum # segements to interpolate an arc
#ifndef M_PI
#define M_PI 3.14159265358979323846
#define M_PI 3.14159265358979323846 /* pi */
@ -306,8 +309,9 @@ void ViewProviderPath::updateData(const App::Property* prop)
angle = M_PI * 2 - angle;
if (angle == 0)
angle = M_PI * 2;
int segments = 3/(deviation/angle); //we use a rather simple rule here, provisorily
int segments = std::max(ARC_MIN_SEGMENTS, 3.0/(deviation/angle)); //we use a rather simple rule here, provisorily
double dZ = (next.z - last.z)/segments; //How far each segment will helix in Z
for (int j = 1; j < segments; j++) {
//std::cout << "vector " << j << std::endl;
Base::Vector3d inter;