6663b6c9
 adorian
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#ifndef SHARED_CURVE_VIEW_RANGE_H
#define SHARED_CURVE_VIEW_RANGE_H
#include <stdint.h>
namespace Shared {
class CurveViewRange {
public:
enum class Axis {
X,
Y
};
virtual uint32_t rangeChecksum();
virtual float xMin() = 0;
virtual float xMax() = 0;
virtual float yMin() = 0;
virtual float yMax() = 0;
virtual float xGridUnit() = 0;
virtual float yGridUnit();
float computeGridUnit(Axis axis, float min, float max);
constexpr static float k_maxNumberOfXGridUnits = 18.0f;
constexpr static float k_maxNumberOfYGridUnits = 13.0f;
private:
constexpr static float k_minNumberOfXGridUnits = 7.0f;
constexpr static float k_minNumberOfYGridUnits = 5.0f;
/* The grid units is constrained to be a number of type: k*10^n with k = 1,2 or 5
* and n a relative integer. The choice of x and y grid units depend on the
* grid range.*/
constexpr static float k_smallGridUnitMantissa = 1.0f;
constexpr static float k_mediumGridUnitMantissa = 2.0f;
constexpr static float k_largeGridUnitMantissa = 5.0f;
};
}
#endif
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